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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>HPath.IO.Utils</title><link href="ocean.css" rel="stylesheet" type="text/css" title="Ocean" /><script src="haddock-util.js" type="text/javascript"></script><script src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML" type="text/javascript"></script><script type="text/javascript">//<![CDATA[
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</script></head><body><div id="package-header"><ul class="links" id="page-menu"><li><a href="src/HPath-IO-Utils.html">Source</a></li><li><a href="index.html">Contents</a></li><li><a href="doc-index.html">Index</a></li></ul><p class="caption">hpath-0.7.3: Support for well-typed paths</p></div><div id="content"><div id="module-header"><table class="info"><tr><th>Copyright</th><td>&#169; 2016 Julian Ospald</td></tr><tr><th>License</th><td>GPL-2</td></tr><tr><th>Maintainer</th><td>Julian Ospald &lt;hasufell@posteo.de&gt;</td></tr><tr><th>Stability</th><td>experimental</td></tr><tr><th>Portability</th><td>portable</td></tr><tr><th>Safe Haskell</th><td>Safe</td></tr><tr><th>Language</th><td>Haskell2010</td></tr></table><p class="caption">HPath.IO.Utils</p></div><div id="description"><p class="caption">Description</p><div class="doc"><p>Random and general IO/monad utilities.</p></div></div><div id="synopsis"><p id="control.syn" class="caption expander" onclick="toggleSection('syn')">Synopsis</p><ul id="section.syn" class="hide" onclick="toggleSection('syn')"><li class="src short"><a href="#v:whenM">whenM</a> :: Monad m =&gt; m Bool -&gt; m () -&gt; m ()</li><li class="src short"><a href="#v:unlessM">unlessM</a> :: Monad m =&gt; m Bool -&gt; m () -&gt; m ()</li></ul></div><div id="interface"><h1>Documentation</h1><div class="top"><p class="src"><a id="v:whenM" class="def">whenM</a> :: Monad m =&gt; m Bool -&gt; m () -&gt; m () <a href="src/HPath-IO-Utils.html#whenM" class="link">Source</a> <a href="#v:whenM" class="selflink">#</a></p><div class="doc"><p>If the value of the first argument is True, then execute the action
provided in the second argument, otherwise do nothing.</p></div></div><div class="top"><p class="src"><a id="v:unlessM" class="def">unlessM</a> :: Monad m =&gt; m Bool -&gt; m () -&gt; m () <a href="src/HPath-IO-Utils.html#unlessM" class="link">Source</a> <a href="#v:unlessM" class="selflink">#</a></p><div class="doc"><p>If the value of the first argument is False, then execute the action
provided in the second argument, otherwise do nothing.</p></div></div></div></div><div id="footer"><p>Produced by <a href="http://www.haskell.org/haddock/">Haddock</a> version 2.17.2</p></div></body></html>

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>System.Posix.Directory.Traversals</title><link href="ocean.css" rel="stylesheet" type="text/css" title="Ocean" /><script src="haddock-util.js" type="text/javascript"></script><script src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML" type="text/javascript"></script><script type="text/javascript">//<![CDATA[
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</script></head><body><div id="package-header"><ul class="links" id="page-menu"><li><a href="src/System-Posix-Directory-Traversals.html">Source</a></li><li><a href="index.html">Contents</a></li><li><a href="doc-index.html">Index</a></li></ul><p class="caption">hpath-0.7.3: Support for well-typed paths</p></div><div id="content"><div id="module-header"><table class="info"><tr><th>Copyright</th><td>&#169; 2016 Julian Ospald</td></tr><tr><th>License</th><td>BSD3</td></tr><tr><th>Maintainer</th><td>Julian Ospald &lt;hasufell@posteo.de&gt;</td></tr><tr><th>Stability</th><td>experimental</td></tr><tr><th>Portability</th><td>portable</td></tr><tr><th>Safe Haskell</th><td>None</td></tr><tr><th>Language</th><td>Haskell2010</td></tr></table><p class="caption">System.Posix.Directory.Traversals</p></div><div id="description"><p class="caption">Description</p><div class="doc"><p>Traversal and read operations on directories.</p></div></div><div id="synopsis"><p id="control.syn" class="caption expander" onclick="toggleSection('syn')">Synopsis</p><ul id="section.syn" class="hide" onclick="toggleSection('syn')"><li class="src short"><a href="#v:getDirectoryContents">getDirectoryContents</a> :: RawFilePath -&gt; IO [(<a href="System-Posix-Directory-Foreign.html#t:DirType">DirType</a>, RawFilePath)]</li><li class="src short"><a href="#v:getDirectoryContents-39-">getDirectoryContents'</a> :: Fd -&gt; IO [(<a href="System-Posix-Directory-Foreign.html#t:DirType">DirType</a>, RawFilePath)]</li><li class="src short"><a href="#v:allDirectoryContents">allDirectoryContents</a> :: RawFilePath -&gt; IO [RawFilePath]</li><li class="src short"><a href="#v:allDirectoryContents-39-">allDirectoryContents'</a> :: RawFilePath -&gt; IO [RawFilePath]</li><li class="src short"><a href="#v:traverseDirectory">traverseDirectory</a> :: (s -&gt; RawFilePath -&gt; IO s) -&gt; s -&gt; RawFilePath -&gt; IO s</li><li class="src short"><a href="#v:readDirEnt">readDirEnt</a> :: DirStream -&gt; IO (<a href="System-Posix-Directory-Foreign.html#t:DirType">DirType</a>, RawFilePath)</li><li class="src short"><a href="#v:packDirStream">packDirStream</a> :: Ptr CDir -&gt; DirStream</li><li class="src short"><a href="#v:unpackDirStream">unpackDirStream</a> :: DirStream -&gt; Ptr CDir</li><li class="src short"><a href="#v:fdOpendir">fdOpendir</a> :: Fd -&gt; IO DirStream</li><li class="src short"><a href="#v:realpath">realpath</a> :: RawFilePath -&gt; IO RawFilePath</li></ul></div><div id="interface"><h1>Documentation</h1><div class="top"><p class="src"><a id="v:getDirectoryContents" class="def">getDirectoryContents</a> :: RawFilePath -&gt; IO [(<a href="System-Posix-Directory-Foreign.html#t:DirType">DirType</a>, RawFilePath)] <a href="src/System-Posix-Directory-Traversals.html#getDirectoryContents" class="link">Source</a> <a href="#v:getDirectoryContents" class="selflink">#</a></p><div class="doc"><p>Gets all directory contents (not recursively).</p></div></div><div class="top"><p class="src"><a id="v:getDirectoryContents-39-" class="def">getDirectoryContents'</a> :: Fd -&gt; IO [(<a href="System-Posix-Directory-Foreign.html#t:DirType">DirType</a>, RawFilePath)] <a href="src/System-Posix-Directory-Traversals.html#getDirectoryContents%27" class="link">Source</a> <a href="#v:getDirectoryContents-39-" class="selflink">#</a></p><div class="doc"><p>Like <code><a href="System-Posix-Directory-Traversals.html#v:getDirectoryContents">getDirectoryContents</a></code> except for a file descriptor.</p><p>To avoid complicated error checks, the file descriptor is
<strong>always</strong> closed, even if <code><a href="System-Posix-Directory-Traversals.html#v:fdOpendir">fdOpendir</a></code> fails. Usually, this
only happens on successful <code><a href="System-Posix-Directory-Traversals.html#v:fdOpendir">fdOpendir</a></code> and after the directory
stream is closed. Also see the manpage of <code>fdopendir(3)</code> for
more details.</p></div></div><div class="top"><p class="src"><a id="v:allDirectoryContents" class="def">allDirectoryContents</a> :: RawFilePath -&gt; IO [RawFilePath] <a href="src/System-Posix-Directory-Traversals.html#allDirectoryContents" class="link">Source</a> <a href="#v:allDirectoryContents" class="selflink">#</a></p><div class="doc"><p>Get all files from a directory and its subdirectories.</p><p>Upon entering a directory, <code><a href="System-Posix-Directory-Traversals.html#v:allDirectoryContents">allDirectoryContents</a></code> will get all entries
strictly. However the returned list is lazy in that directories will only
be accessed on demand.</p><p>Follows symbolic links for the input dir.</p></div></div><div class="top"><p class="src"><a id="v:allDirectoryContents-39-" class="def">allDirectoryContents'</a> :: RawFilePath -&gt; IO [RawFilePath] <a href="src/System-Posix-Directory-Traversals.html#allDirectoryContents%27" class="link">Source</a> <a href="#v:allDirectoryContents-39-" class="selflink">#</a></p><div class="doc"><p>Get all files from a directory and its subdirectories strictly.</p><p>Follows symbolic links for the input dir.</p></div></div><div class="top"><p class="src"><a id="v:traverseDirectory" class="def">traverseDirectory</a> :: (s -&gt; RawFilePath -&gt; IO s) -&gt; s -&gt; RawFilePath -&gt; IO s <a href="src/System-Posix-Directory-Traversals.html#traverseDirectory" class="link">Source</a> <a href="#v:traverseDirectory" class="selflink">#</a></p><div class="doc"><p>Recursively apply the <code>action</code> to the parent directory and all
files/subdirectories.</p><p>This function allows for memory-efficient traversals.</p><p>Follows symbolic links for the input dir.</p></div></div><div class="top"><p class="src"><a id="v:readDirEnt" class="def">readDirEnt</a> :: DirStream -&gt; IO (<a href="System-Posix-Directory-Foreign.html#t:DirType">DirType</a>, RawFilePath) <a href="src/System-Posix-Directory-Traversals.html#readDirEnt" class="link">Source</a> <a href="#v:readDirEnt" class="selflink">#</a></p></div><div class="top"><p class="src"><a id="v:packDirStream" class="def">packDirStream</a> :: Ptr CDir -&gt; DirStream <a href="src/System-Posix-Directory-Traversals.html#packDirStream" class="link">Source</a> <a href="#v:packDirStream" class="selflink">#</a></p></div><div class="top"><p class="src"><a id="v:unpackDirStream" class="def">unpackDirStream</a> :: DirStream -&gt; Ptr CDir <a href="src/System-Posix-Directory-Traversals.html#unpackDirStream" class="link">Source</a> <a href="#v:unpackDirStream" class="selflink">#</a></p></div><div class="top"><p class="src"><a id="v:fdOpendir" class="def">fdOpendir</a> :: Fd -&gt; IO DirStream <a href="src/System-Posix-Directory-Traversals.html#fdOpendir" class="link">Source</a> <a href="#v:fdOpendir" class="selflink">#</a></p><div class="doc"><p>Binding to <code>fdopendir(3)</code>.</p></div></div><div class="top"><p class="src"><a id="v:realpath" class="def">realpath</a> :: RawFilePath -&gt; IO RawFilePath <a href="src/System-Posix-Directory-Traversals.html#realpath" class="link">Source</a> <a href="#v:realpath" class="selflink">#</a></p><div class="doc"><p>return the canonicalized absolute pathname</p><p>like canonicalizePath, but uses <code>realpath(3)</code></p></div></div></div></div><div id="footer"><p>Produced by <a href="http://www.haskell.org/haddock/">Haddock</a> version 2.17.2</p></div></body></html>

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>System.Posix.FD</title><link href="ocean.css" rel="stylesheet" type="text/css" title="Ocean" /><script src="haddock-util.js" type="text/javascript"></script><script src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML" type="text/javascript"></script><script type="text/javascript">//<![CDATA[
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</script></head><body><div id="package-header"><ul class="links" id="page-menu"><li><a href="src/System-Posix-FD.html">Source</a></li><li><a href="index.html">Contents</a></li><li><a href="doc-index.html">Index</a></li></ul><p class="caption">hpath-0.7.3: Support for well-typed paths</p></div><div id="content"><div id="module-header"><table class="info"><tr><th>Copyright</th><td>&#169; 2016 Julian Ospald</td></tr><tr><th>License</th><td>BSD3</td></tr><tr><th>Maintainer</th><td>Julian Ospald &lt;hasufell@posteo.de&gt;</td></tr><tr><th>Stability</th><td>experimental</td></tr><tr><th>Portability</th><td>portable</td></tr><tr><th>Safe Haskell</th><td>Safe</td></tr><tr><th>Language</th><td>Haskell2010</td></tr></table><p class="caption">System.Posix.FD</p></div><div id="description"><p class="caption">Description</p><div class="doc"><p>Provides an alternative for <code><a href="System-Posix-IO-ByteString.html#v:openFd">openFd</a></code>
which gives us more control on what status flags to pass to the
low-level <code>open(2)</code> call, in contrast to the unix package.</p></div></div><div id="synopsis"><p id="control.syn" class="caption expander" onclick="toggleSection('syn')">Synopsis</p><ul id="section.syn" class="hide" onclick="toggleSection('syn')"><li class="src short"><a href="#v:openFd">openFd</a> :: RawFilePath -&gt; OpenMode -&gt; [<a href="System-Posix-Directory-Foreign.html#t:Flags">Flags</a>] -&gt; Maybe FileMode -&gt; IO Fd</li></ul></div><div id="interface"><h1>Documentation</h1><div class="top"><p class="src"><a id="v:openFd" class="def">openFd</a> <a href="src/System-Posix-FD.html#openFd" class="link">Source</a> <a href="#v:openFd" class="selflink">#</a></p><div class="subs arguments"><p class="caption">Arguments</p><table><tr><td class="src">:: RawFilePath</td><td class="doc empty">&nbsp;</td></tr><tr><td class="src">-&gt; OpenMode</td><td class="doc empty">&nbsp;</td></tr><tr><td class="src">-&gt; [<a href="System-Posix-Directory-Foreign.html#t:Flags">Flags</a>]</td><td class="doc"><p>status flags of <code>open(2)</code></p></td></tr><tr><td class="src">-&gt; Maybe FileMode</td><td class="doc"><p><code>Just x</code> =&gt; creates the file with the given modes, Nothing =&gt; the file must exist.</p></td></tr><tr><td class="src">-&gt; IO Fd</td><td class="doc empty">&nbsp;</td></tr></table></div><div class="doc"><p>Open and optionally create this file. See <code><a href="System-Posix.html#v:Files">Files</a></code>
for information on how to use the <code>FileMode</code> type.</p><p>Note that passing <code>Just x</code> as the 4th argument triggers the
<code><a href="System-Posix-Directory-Foreign.html#v:oCreat">oCreat</a></code> status flag, which must be set when you pass in <code><a href="System-Posix-Directory-Foreign.html#v:oExcl">oExcl</a></code>
to the status flags. Also see the manpage for <code>open(2)</code>.</p></div></div></div></div><div id="footer"><p>Produced by <a href="http://www.haskell.org/haddock/">Haddock</a> version 2.17.2</p></div></body></html>

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</script></head><body><div id="package-header"><ul class="links" id="page-menu"><li><a href="index.html">Contents</a></li><li><a href="doc-index.html">Index</a></li></ul><p class="caption">hpath-0.7.3: Support for well-typed paths</p></div><div id="content"><div id="alphabet"><ul><li><a href="doc-index-A.html">A</a></li><li><a href="doc-index-B.html">B</a></li><li><a href="doc-index-C.html">C</a></li><li><a href="doc-index-D.html">D</a></li><li><a href="doc-index-E.html">E</a></li><li><a href="doc-index-F.html">F</a></li><li><a href="doc-index-G.html">G</a></li><li><a href="doc-index-H.html">H</a></li><li><a href="doc-index-I.html">I</a></li><li><a href="doc-index-J.html">J</a></li><li><a href="doc-index-M.html">M</a></li><li><a href="doc-index-N.html">N</a></li><li><a href="doc-index-O.html">O</a></li><li><a href="doc-index-P.html">P</a></li><li><a href="doc-index-R.html">R</a></li><li><a href="doc-index-S.html">S</a></li><li><a href="doc-index-T.html">T</a></li><li><a href="doc-index-U.html">U</a></li><li><a href="doc-index-W.html">W</a></li><li><a href="doc-index-60.html">&lt;</a></li><li><a href="doc-index-All.html">All</a></li></ul></div><div id="index"><p class="caption">Index - &lt;</p><table><tr><td class="src">&lt;.&gt;</td><td class="module"><a href="System-Posix-FilePath.html#v:-60-.-62-">System.Posix.FilePath</a></td></tr><tr><td class="src">&lt;/&gt;</td><td>&nbsp;</td></tr><tr><td class="alt">1 (Function)</td><td class="module"><a href="System-Posix-FilePath.html#v:-60--47--62-">System.Posix.FilePath</a></td></tr><tr><td class="alt">2 (Function)</td><td class="module"><a href="HPath.html#v:-60--47--62-">HPath</a></td></tr></table></div></div><div id="footer"><p>Produced by <a href="http://www.haskell.org/haddock/">Haddock</a> version 2.17.2</p></div></body></html>

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>hpath-0.7.3: Support for well-typed paths (Index - A)</title><link href="ocean.css" rel="stylesheet" type="text/css" title="Ocean" /><script src="haddock-util.js" type="text/javascript"></script><script src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML" type="text/javascript"></script><script type="text/javascript">//<![CDATA[
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</script></head><body><div id="package-header"><ul class="links" id="page-menu"><li><a href="index.html">Contents</a></li><li><a href="doc-index.html">Index</a></li></ul><p class="caption">hpath-0.7.3: Support for well-typed paths</p></div><div id="content"><div id="alphabet"><ul><li><a href="doc-index-A.html">A</a></li><li><a href="doc-index-B.html">B</a></li><li><a href="doc-index-C.html">C</a></li><li><a href="doc-index-D.html">D</a></li><li><a href="doc-index-E.html">E</a></li><li><a href="doc-index-F.html">F</a></li><li><a href="doc-index-G.html">G</a></li><li><a href="doc-index-H.html">H</a></li><li><a href="doc-index-I.html">I</a></li><li><a href="doc-index-J.html">J</a></li><li><a href="doc-index-M.html">M</a></li><li><a href="doc-index-N.html">N</a></li><li><a href="doc-index-O.html">O</a></li><li><a href="doc-index-P.html">P</a></li><li><a href="doc-index-R.html">R</a></li><li><a href="doc-index-S.html">S</a></li><li><a href="doc-index-T.html">T</a></li><li><a href="doc-index-U.html">U</a></li><li><a href="doc-index-W.html">W</a></li><li><a href="doc-index-60.html">&lt;</a></li><li><a href="doc-index-All.html">All</a></li></ul></div><div id="index"><p class="caption">Index - A</p><table><tr><td class="src">Abs</td><td class="module"><a href="HPath.html#t:Abs">HPath</a></td></tr><tr><td class="src">addExtension</td><td class="module"><a href="System-Posix-FilePath.html#v:addExtension">System.Posix.FilePath</a></td></tr><tr><td class="src">addTrailingPathSeparator</td><td class="module"><a href="System-Posix-FilePath.html#v:addTrailingPathSeparator">System.Posix.FilePath</a></td></tr><tr><td class="src">allDirectoryContents</td><td class="module"><a href="System-Posix-Directory-Traversals.html#v:allDirectoryContents">System.Posix.Directory.Traversals</a></td></tr><tr><td class="src">allDirectoryContents'</td><td class="module"><a href="System-Posix-Directory-Traversals.html#v:allDirectoryContents-39-">System.Posix.Directory.Traversals</a></td></tr></table></div></div><div id="footer"><p>Produced by <a href="http://www.haskell.org/haddock/">Haddock</a> version 2.17.2</p></div></body></html>

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</script></head><body><div id="package-header"><ul class="links" id="page-menu"><li><a href="index.html">Contents</a></li><li><a href="doc-index.html">Index</a></li></ul><p class="caption">hpath-0.7.3: Support for well-typed paths</p></div><div id="content"><div id="alphabet"><ul><li><a href="doc-index-A.html">A</a></li><li><a href="doc-index-B.html">B</a></li><li><a href="doc-index-C.html">C</a></li><li><a href="doc-index-D.html">D</a></li><li><a href="doc-index-E.html">E</a></li><li><a href="doc-index-F.html">F</a></li><li><a href="doc-index-G.html">G</a></li><li><a href="doc-index-H.html">H</a></li><li><a href="doc-index-I.html">I</a></li><li><a href="doc-index-J.html">J</a></li><li><a href="doc-index-M.html">M</a></li><li><a href="doc-index-N.html">N</a></li><li><a href="doc-index-O.html">O</a></li><li><a href="doc-index-P.html">P</a></li><li><a href="doc-index-R.html">R</a></li><li><a href="doc-index-S.html">S</a></li><li><a href="doc-index-T.html">T</a></li><li><a href="doc-index-U.html">U</a></li><li><a href="doc-index-W.html">W</a></li><li><a href="doc-index-60.html">&lt;</a></li><li><a href="doc-index-All.html">All</a></li></ul></div><div id="index"><p class="caption">Index - B</p><table><tr><td class="src">basename</td><td class="module"><a href="HPath.html#v:basename">HPath</a></td></tr><tr><td class="src">BlockDevice</td><td class="module"><a href="HPath-IO.html#v:BlockDevice">HPath.IO</a></td></tr><tr><td class="src">bracketeer</td><td class="module"><a href="HPath-IO-Errors.html#v:bracketeer">HPath.IO.Errors</a></td></tr></table></div></div><div id="footer"><p>Produced by <a href="http://www.haskell.org/haddock/">Haddock</a> version 2.17.2</p></div></body></html>

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>hpath-0.7.3: Support for well-typed paths (Index - C)</title><link href="ocean.css" rel="stylesheet" type="text/css" title="Ocean" /><script src="haddock-util.js" type="text/javascript"></script><script src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML" type="text/javascript"></script><script type="text/javascript">//<![CDATA[
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</script></head><body><div id="package-header"><ul class="links" id="page-menu"><li><a href="index.html">Contents</a></li><li><a href="doc-index.html">Index</a></li></ul><p class="caption">hpath-0.7.3: Support for well-typed paths</p></div><div id="content"><div id="alphabet"><ul><li><a href="doc-index-A.html">A</a></li><li><a href="doc-index-B.html">B</a></li><li><a href="doc-index-C.html">C</a></li><li><a href="doc-index-D.html">D</a></li><li><a href="doc-index-E.html">E</a></li><li><a href="doc-index-F.html">F</a></li><li><a href="doc-index-G.html">G</a></li><li><a href="doc-index-H.html">H</a></li><li><a href="doc-index-I.html">I</a></li><li><a href="doc-index-J.html">J</a></li><li><a href="doc-index-M.html">M</a></li><li><a href="doc-index-N.html">N</a></li><li><a href="doc-index-O.html">O</a></li><li><a href="doc-index-P.html">P</a></li><li><a href="doc-index-R.html">R</a></li><li><a href="doc-index-S.html">S</a></li><li><a href="doc-index-T.html">T</a></li><li><a href="doc-index-U.html">U</a></li><li><a href="doc-index-W.html">W</a></li><li><a href="doc-index-60.html">&lt;</a></li><li><a href="doc-index-All.html">All</a></li></ul></div><div id="index"><p class="caption">Index - C</p><table><tr><td class="src">Can'tOpenDirectory</td><td class="module"><a href="HPath-IO-Errors.html#v:Can-39-tOpenDirectory">HPath.IO.Errors</a></td></tr><tr><td class="src">canonicalizePath</td><td class="module"><a href="HPath-IO.html#v:canonicalizePath">HPath.IO</a></td></tr><tr><td class="src">canOpenDirectory</td><td class="module"><a href="HPath-IO-Errors.html#v:canOpenDirectory">HPath.IO.Errors</a></td></tr><tr><td class="src">catchErrno</td><td class="module"><a href="HPath-IO-Errors.html#v:catchErrno">HPath.IO.Errors</a></td></tr><tr><td class="src">CharacterDevice</td><td class="module"><a href="HPath-IO.html#v:CharacterDevice">HPath.IO</a></td></tr><tr><td class="src">combine</td><td class="module"><a href="System-Posix-FilePath.html#v:combine">System.Posix.FilePath</a></td></tr><tr><td class="src">copyDirRecursive</td><td class="module"><a href="HPath-IO.html#v:copyDirRecursive">HPath.IO</a></td></tr><tr><td class="src">copyDirRecursiveOverwrite</td><td class="module"><a href="HPath-IO.html#v:copyDirRecursiveOverwrite">HPath.IO</a></td></tr><tr><td class="src">CopyFailed</td><td class="module"><a href="HPath-IO-Errors.html#v:CopyFailed">HPath.IO.Errors</a></td></tr><tr><td class="src">copyFile</td><td class="module"><a href="HPath-IO.html#v:copyFile">HPath.IO</a></td></tr><tr><td class="src">copyFileOverwrite</td><td class="module"><a href="HPath-IO.html#v:copyFileOverwrite">HPath.IO</a></td></tr><tr><td class="src">createDir</td><td class="module"><a href="HPath-IO.html#v:createDir">HPath.IO</a></td></tr><tr><td class="src">createRegularFile</td><td class="module"><a href="HPath-IO.html#v:createRegularFile">HPath.IO</a></td></tr><tr><td class="src">createSymlink</td><td class="module"><a href="HPath-IO.html#v:createSymlink">HPath.IO</a></td></tr></table></div></div><div id="footer"><p>Produced by <a href="http://www.haskell.org/haddock/">Haddock</a> version 2.17.2</p></div></body></html>

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>hpath-0.7.3: Support for well-typed paths (Index - D)</title><link href="ocean.css" rel="stylesheet" type="text/css" title="Ocean" /><script src="haddock-util.js" type="text/javascript"></script><script src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML" type="text/javascript"></script><script type="text/javascript">//<![CDATA[
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</script></head><body><div id="package-header"><ul class="links" id="page-menu"><li><a href="index.html">Contents</a></li><li><a href="doc-index.html">Index</a></li></ul><p class="caption">hpath-0.7.3: Support for well-typed paths</p></div><div id="content"><div id="alphabet"><ul><li><a href="doc-index-A.html">A</a></li><li><a href="doc-index-B.html">B</a></li><li><a href="doc-index-C.html">C</a></li><li><a href="doc-index-D.html">D</a></li><li><a href="doc-index-E.html">E</a></li><li><a href="doc-index-F.html">F</a></li><li><a href="doc-index-G.html">G</a></li><li><a href="doc-index-H.html">H</a></li><li><a href="doc-index-I.html">I</a></li><li><a href="doc-index-J.html">J</a></li><li><a href="doc-index-M.html">M</a></li><li><a href="doc-index-N.html">N</a></li><li><a href="doc-index-O.html">O</a></li><li><a href="doc-index-P.html">P</a></li><li><a href="doc-index-R.html">R</a></li><li><a href="doc-index-S.html">S</a></li><li><a href="doc-index-T.html">T</a></li><li><a href="doc-index-U.html">U</a></li><li><a href="doc-index-W.html">W</a></li><li><a href="doc-index-60.html">&lt;</a></li><li><a href="doc-index-All.html">All</a></li></ul></div><div id="index"><p class="caption">Index - D</p><table><tr><td class="src">deleteDir</td><td class="module"><a href="HPath-IO.html#v:deleteDir">HPath.IO</a></td></tr><tr><td class="src">deleteDirRecursive</td><td class="module"><a href="HPath-IO.html#v:deleteDirRecursive">HPath.IO</a></td></tr><tr><td class="src">deleteFile</td><td class="module"><a href="HPath-IO.html#v:deleteFile">HPath.IO</a></td></tr><tr><td class="src">DestinationInSource</td><td class="module"><a href="HPath-IO-Errors.html#v:DestinationInSource">HPath.IO.Errors</a></td></tr><tr><td class="src">DirDoesExist</td><td class="module"><a href="HPath-IO-Errors.html#v:DirDoesExist">HPath.IO.Errors</a></td></tr><tr><td class="src">DirDoesNotExist</td><td class="module"><a href="HPath-IO-Errors.html#v:DirDoesNotExist">HPath.IO.Errors</a></td></tr><tr><td class="src">Directory</td><td class="module"><a href="HPath-IO.html#v:Directory">HPath.IO</a></td></tr><tr><td class="src">dirname</td><td class="module"><a href="HPath.html#v:dirname">HPath</a></td></tr><tr><td class="src">DirType</td><td>&nbsp;</td></tr><tr><td class="alt">1 (Type/Class)</td><td class="module"><a href="System-Posix-Directory-Foreign.html#t:DirType">System.Posix.Directory.Foreign</a></td></tr><tr><td class="alt">2 (Data Constructor)</td><td class="module"><a href="System-Posix-Directory-Foreign.html#v:DirType">System.Posix.Directory.Foreign</a></td></tr><tr><td class="src">doesDirectoryExist</td><td class="module"><a href="HPath-IO-Errors.html#v:doesDirectoryExist">HPath.IO.Errors</a></td></tr><tr><td class="src">doesFileExist</td><td class="module"><a href="HPath-IO-Errors.html#v:doesFileExist">HPath.IO.Errors</a></td></tr><tr><td class="src">dropExtension</td><td class="module"><a href="System-Posix-FilePath.html#v:dropExtension">System.Posix.FilePath</a></td></tr><tr><td class="src">dropExtensions</td><td class="module"><a href="System-Posix-FilePath.html#v:dropExtensions">System.Posix.FilePath</a></td></tr><tr><td class="src">dropFileName</td><td class="module"><a href="System-Posix-FilePath.html#v:dropFileName">System.Posix.FilePath</a></td></tr><tr><td class="src">dropTrailingPathSeparator</td><td class="module"><a href="System-Posix-FilePath.html#v:dropTrailingPathSeparator">System.Posix.FilePath</a></td></tr><tr><td class="src">dtBlk</td><td class="module"><a href="System-Posix-Directory-Foreign.html#v:dtBlk">System.Posix.Directory.Foreign</a></td></tr><tr><td class="src">dtChr</td><td class="module"><a href="System-Posix-Directory-Foreign.html#v:dtChr">System.Posix.Directory.Foreign</a></td></tr><tr><td class="src">dtDir</td><td class="module"><a href="System-Posix-Directory-Foreign.html#v:dtDir">System.Posix.Directory.Foreign</a></td></tr><tr><td class="src">dtFifo</td><td class="module"><a href="System-Posix-Directory-Foreign.html#v:dtFifo">System.Posix.Directory.Foreign</a></td></tr><tr><td class="src">dtLnk</td><td class="module"><a href="System-Posix-Directory-Foreign.html#v:dtLnk">System.Posix.Directory.Foreign</a></td></tr><tr><td class="src">dtReg</td><td class="module"><a href="System-Posix-Directory-Foreign.html#v:dtReg">System.Posix.Directory.Foreign</a></td></tr><tr><td class="src">dtSock</td><td class="module"><a href="System-Posix-Directory-Foreign.html#v:dtSock">System.Posix.Directory.Foreign</a></td></tr><tr><td class="src">dtUnknown</td><td class="module"><a href="System-Posix-Directory-Foreign.html#v:dtUnknown">System.Posix.Directory.Foreign</a></td></tr></table></div></div><div id="footer"><p>Produced by <a href="http://www.haskell.org/haddock/">Haddock</a> version 2.17.2</p></div></body></html>

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</script></head><body><div id="package-header"><ul class="links" id="page-menu"><li><a href="index.html">Contents</a></li><li><a href="doc-index.html">Index</a></li></ul><p class="caption">hpath-0.7.3: Support for well-typed paths</p></div><div id="content"><div id="alphabet"><ul><li><a href="doc-index-A.html">A</a></li><li><a href="doc-index-B.html">B</a></li><li><a href="doc-index-C.html">C</a></li><li><a href="doc-index-D.html">D</a></li><li><a href="doc-index-E.html">E</a></li><li><a href="doc-index-F.html">F</a></li><li><a href="doc-index-G.html">G</a></li><li><a href="doc-index-H.html">H</a></li><li><a href="doc-index-I.html">I</a></li><li><a href="doc-index-J.html">J</a></li><li><a href="doc-index-M.html">M</a></li><li><a href="doc-index-N.html">N</a></li><li><a href="doc-index-O.html">O</a></li><li><a href="doc-index-P.html">P</a></li><li><a href="doc-index-R.html">R</a></li><li><a href="doc-index-S.html">S</a></li><li><a href="doc-index-T.html">T</a></li><li><a href="doc-index-U.html">U</a></li><li><a href="doc-index-W.html">W</a></li><li><a href="doc-index-60.html">&lt;</a></li><li><a href="doc-index-All.html">All</a></li></ul></div><div id="index"><p class="caption">Index - F</p><table><tr><td class="src">fdOpendir</td><td class="module"><a href="System-Posix-Directory-Traversals.html#v:fdOpendir">System.Posix.Directory.Traversals</a></td></tr><tr><td class="src">FileDoesExist</td><td class="module"><a href="HPath-IO-Errors.html#v:FileDoesExist">HPath.IO.Errors</a></td></tr><tr><td class="src">FileDoesNotExist</td><td class="module"><a href="HPath-IO-Errors.html#v:FileDoesNotExist">HPath.IO.Errors</a></td></tr><tr><td class="src">FileType</td><td class="module"><a href="HPath-IO.html#t:FileType">HPath.IO</a></td></tr><tr><td class="src">Flags</td><td>&nbsp;</td></tr><tr><td class="alt">1 (Type/Class)</td><td class="module"><a href="System-Posix-Directory-Foreign.html#t:Flags">System.Posix.Directory.Foreign</a></td></tr><tr><td class="alt">2 (Data Constructor)</td><td class="module"><a href="System-Posix-Directory-Foreign.html#v:Flags">System.Posix.Directory.Foreign</a></td></tr><tr><td class="src">Fn</td><td class="module"><a href="HPath.html#t:Fn">HPath</a></td></tr><tr><td class="src">fromAbs</td><td class="module"><a href="HPath.html#v:fromAbs">HPath</a></td></tr><tr><td class="src">fromRel</td><td class="module"><a href="HPath.html#v:fromRel">HPath</a></td></tr></table></div></div><div id="footer"><p>Produced by <a href="http://www.haskell.org/haddock/">Haddock</a> version 2.17.2</p></div></body></html>

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</script></head><body><div id="package-header"><ul class="links" id="page-menu"><li><a href="index.html">Contents</a></li><li><a href="doc-index.html">Index</a></li></ul><p class="caption">hpath-0.7.3: Support for well-typed paths</p></div><div id="content"><div id="alphabet"><ul><li><a href="doc-index-A.html">A</a></li><li><a href="doc-index-B.html">B</a></li><li><a href="doc-index-C.html">C</a></li><li><a href="doc-index-D.html">D</a></li><li><a href="doc-index-E.html">E</a></li><li><a href="doc-index-F.html">F</a></li><li><a href="doc-index-G.html">G</a></li><li><a href="doc-index-H.html">H</a></li><li><a href="doc-index-I.html">I</a></li><li><a href="doc-index-J.html">J</a></li><li><a href="doc-index-M.html">M</a></li><li><a href="doc-index-N.html">N</a></li><li><a href="doc-index-O.html">O</a></li><li><a href="doc-index-P.html">P</a></li><li><a href="doc-index-R.html">R</a></li><li><a href="doc-index-S.html">S</a></li><li><a href="doc-index-T.html">T</a></li><li><a href="doc-index-U.html">U</a></li><li><a href="doc-index-W.html">W</a></li><li><a href="doc-index-60.html">&lt;</a></li><li><a href="doc-index-All.html">All</a></li></ul></div><div id="index"><p class="caption">Index - I</p><table><tr><td class="src">InvalidOperation</td><td class="module"><a href="HPath-IO-Errors.html#v:InvalidOperation">HPath.IO.Errors</a></td></tr><tr><td class="src">isAbsolute</td><td class="module"><a href="System-Posix-FilePath.html#v:isAbsolute">System.Posix.FilePath</a></td></tr><tr><td class="src">isCan'tOpenDirectory</td><td class="module"><a href="HPath-IO-Errors.html#v:isCan-39-tOpenDirectory">HPath.IO.Errors</a></td></tr><tr><td class="src">isCopyFailed</td><td class="module"><a href="HPath-IO-Errors.html#v:isCopyFailed">HPath.IO.Errors</a></td></tr><tr><td class="src">isDestinationInSource</td><td class="module"><a href="HPath-IO-Errors.html#v:isDestinationInSource">HPath.IO.Errors</a></td></tr><tr><td class="src">isDirDoesExist</td><td class="module"><a href="HPath-IO-Errors.html#v:isDirDoesExist">HPath.IO.Errors</a></td></tr><tr><td class="src">isDirDoesNotExist</td><td class="module"><a href="HPath-IO-Errors.html#v:isDirDoesNotExist">HPath.IO.Errors</a></td></tr><tr><td class="src">isExtSeparator</td><td class="module"><a href="System-Posix-FilePath.html#v:isExtSeparator">System.Posix.FilePath</a></td></tr><tr><td class="src">isFileDoesExist</td><td class="module"><a href="HPath-IO-Errors.html#v:isFileDoesExist">HPath.IO.Errors</a></td></tr><tr><td class="src">isFileDoesNotExist</td><td class="module"><a href="HPath-IO-Errors.html#v:isFileDoesNotExist">HPath.IO.Errors</a></td></tr><tr><td class="src">isFileName</td><td class="module"><a href="System-Posix-FilePath.html#v:isFileName">System.Posix.FilePath</a></td></tr><tr><td class="src">isInvalidOperation</td><td class="module"><a href="HPath-IO-Errors.html#v:isInvalidOperation">HPath.IO.Errors</a></td></tr><tr><td class="src">isParentOf</td><td class="module"><a href="HPath.html#v:isParentOf">HPath</a></td></tr><tr><td class="src">isPathSeparator</td><td class="module"><a href="System-Posix-FilePath.html#v:isPathSeparator">System.Posix.FilePath</a></td></tr><tr><td class="src">isRelative</td><td class="module"><a href="System-Posix-FilePath.html#v:isRelative">System.Posix.FilePath</a></td></tr><tr><td class="src">isSameFile</td><td class="module"><a href="HPath-IO-Errors.html#v:isSameFile">HPath.IO.Errors</a></td></tr><tr><td class="src">isSearchPathSeparator</td><td class="module"><a href="System-Posix-FilePath.html#v:isSearchPathSeparator">System.Posix.FilePath</a></td></tr><tr><td class="src">isSupported</td><td class="module"><a href="System-Posix-Directory-Foreign.html#v:isSupported">System.Posix.Directory.Foreign</a></td></tr><tr><td class="src">isValid</td><td class="module"><a href="System-Posix-FilePath.html#v:isValid">System.Posix.FilePath</a></td></tr><tr><td class="src">isWritable</td><td class="module"><a href="HPath-IO-Errors.html#v:isWritable">HPath.IO.Errors</a></td></tr></table></div></div><div id="footer"><p>Produced by <a href="http://www.haskell.org/haddock/">Haddock</a> version 2.17.2</p></div></body></html>

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</script></head><body><div id="package-header"><ul class="links" id="page-menu"><li><a href="index.html">Contents</a></li><li><a href="doc-index.html">Index</a></li></ul><p class="caption">hpath-0.7.3: Support for well-typed paths</p></div><div id="content"><div id="alphabet"><ul><li><a href="doc-index-A.html">A</a></li><li><a href="doc-index-B.html">B</a></li><li><a href="doc-index-C.html">C</a></li><li><a href="doc-index-D.html">D</a></li><li><a href="doc-index-E.html">E</a></li><li><a href="doc-index-F.html">F</a></li><li><a href="doc-index-G.html">G</a></li><li><a href="doc-index-H.html">H</a></li><li><a href="doc-index-I.html">I</a></li><li><a href="doc-index-J.html">J</a></li><li><a href="doc-index-M.html">M</a></li><li><a href="doc-index-N.html">N</a></li><li><a href="doc-index-O.html">O</a></li><li><a href="doc-index-P.html">P</a></li><li><a href="doc-index-R.html">R</a></li><li><a href="doc-index-S.html">S</a></li><li><a href="doc-index-T.html">T</a></li><li><a href="doc-index-U.html">U</a></li><li><a href="doc-index-W.html">W</a></li><li><a href="doc-index-60.html">&lt;</a></li><li><a href="doc-index-All.html">All</a></li></ul></div><div id="index"><p class="caption">Index - P</p><table><tr><td class="src">packDirStream</td><td class="module"><a href="System-Posix-Directory-Traversals.html#v:packDirStream">System.Posix.Directory.Traversals</a></td></tr><tr><td class="src">parseAbs</td><td class="module"><a href="HPath.html#v:parseAbs">HPath</a></td></tr><tr><td class="src">parseFn</td><td class="module"><a href="HPath.html#v:parseFn">HPath</a></td></tr><tr><td class="src">parseRel</td><td class="module"><a href="HPath.html#v:parseRel">HPath</a></td></tr><tr><td class="src">Path</td><td>&nbsp;</td></tr><tr><td class="alt">1 (Type/Class)</td><td class="module"><a href="HPath.html#t:Path">HPath</a></td></tr><tr><td class="alt">2 (Data Constructor)</td><td class="module"><a href="HPath.html#v:Path">HPath</a></td></tr><tr><td class="src">PathException</td><td class="module"><a href="HPath.html#t:PathException">HPath</a></td></tr><tr><td class="src">pathMax</td><td class="module"><a href="System-Posix-Directory-Foreign.html#v:pathMax">System.Posix.Directory.Foreign</a></td></tr><tr><td class="src">PathParseException</td><td class="module"><a href="HPath.html#t:PathParseException">HPath</a></td></tr><tr><td class="src">pathSeparator</td><td class="module"><a href="System-Posix-FilePath.html#v:pathSeparator">System.Posix.FilePath</a></td></tr><tr><td class="src">peekFilePath</td><td class="module">System.Posix.FilePath</td></tr><tr><td class="src">peekFilePathLen</td><td class="module">System.Posix.FilePath</td></tr></table></div></div><div id="footer"><p>Produced by <a href="http://www.haskell.org/haddock/">Haddock</a> version 2.17.2</p></div></body></html>

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>hpath-0.7.3: Support for well-typed paths (Index - R)</title><link href="ocean.css" rel="stylesheet" type="text/css" title="Ocean" /><script src="haddock-util.js" type="text/javascript"></script><script src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML" type="text/javascript"></script><script type="text/javascript">//<![CDATA[
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</script></head><body><div id="package-header"><ul class="links" id="page-menu"><li><a href="index.html">Contents</a></li><li><a href="doc-index.html">Index</a></li></ul><p class="caption">hpath-0.7.3: Support for well-typed paths</p></div><div id="content"><div id="alphabet"><ul><li><a href="doc-index-A.html">A</a></li><li><a href="doc-index-B.html">B</a></li><li><a href="doc-index-C.html">C</a></li><li><a href="doc-index-D.html">D</a></li><li><a href="doc-index-E.html">E</a></li><li><a href="doc-index-F.html">F</a></li><li><a href="doc-index-G.html">G</a></li><li><a href="doc-index-H.html">H</a></li><li><a href="doc-index-I.html">I</a></li><li><a href="doc-index-J.html">J</a></li><li><a href="doc-index-M.html">M</a></li><li><a href="doc-index-N.html">N</a></li><li><a href="doc-index-O.html">O</a></li><li><a href="doc-index-P.html">P</a></li><li><a href="doc-index-R.html">R</a></li><li><a href="doc-index-S.html">S</a></li><li><a href="doc-index-T.html">T</a></li><li><a href="doc-index-U.html">U</a></li><li><a href="doc-index-W.html">W</a></li><li><a href="doc-index-60.html">&lt;</a></li><li><a href="doc-index-All.html">All</a></li></ul></div><div id="index"><p class="caption">Index - R</p><table><tr><td class="src">RawFilePath</td><td class="module">System.Posix.FilePath</td></tr><tr><td class="src">reactOnError</td><td class="module"><a href="HPath-IO-Errors.html#v:reactOnError">HPath.IO.Errors</a></td></tr><tr><td class="src">readDirEnt</td><td class="module"><a href="System-Posix-Directory-Traversals.html#v:readDirEnt">System.Posix.Directory.Traversals</a></td></tr><tr><td class="src">realpath</td><td class="module"><a href="System-Posix-Directory-Traversals.html#v:realpath">System.Posix.Directory.Traversals</a></td></tr><tr><td class="src">recreateSymlink</td><td class="module"><a href="HPath-IO.html#v:recreateSymlink">HPath.IO</a></td></tr><tr><td class="src">RegularFile</td><td class="module"><a href="HPath-IO.html#v:RegularFile">HPath.IO</a></td></tr><tr><td class="src">Rel</td><td class="module"><a href="HPath.html#t:Rel">HPath</a></td></tr><tr><td class="src">RelC</td><td class="module"><a href="HPath.html#t:RelC">HPath</a></td></tr><tr><td class="src">renameFile</td><td class="module"><a href="HPath-IO.html#v:renameFile">HPath.IO</a></td></tr><tr><td class="src">replaceBaseName</td><td class="module"><a href="System-Posix-FilePath.html#v:replaceBaseName">System.Posix.FilePath</a></td></tr><tr><td class="src">replaceDirectory</td><td class="module"><a href="System-Posix-FilePath.html#v:replaceDirectory">System.Posix.FilePath</a></td></tr><tr><td class="src">replaceExtension</td><td class="module"><a href="System-Posix-FilePath.html#v:replaceExtension">System.Posix.FilePath</a></td></tr><tr><td class="src">replaceFileName</td><td class="module"><a href="System-Posix-FilePath.html#v:replaceFileName">System.Posix.FilePath</a></td></tr><tr><td class="src">rethrowErrnoAs</td><td class="module"><a href="HPath-IO-Errors.html#v:rethrowErrnoAs">HPath.IO.Errors</a></td></tr></table></div></div><div id="footer"><p>Produced by <a href="http://www.haskell.org/haddock/">Haddock</a> version 2.17.2</p></div></body></html>

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>hpath-0.7.3: Support for well-typed paths (Index - S)</title><link href="ocean.css" rel="stylesheet" type="text/css" title="Ocean" /><script src="haddock-util.js" type="text/javascript"></script><script src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML" type="text/javascript"></script><script type="text/javascript">//<![CDATA[
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</script></head><body><div id="package-header"><ul class="links" id="page-menu"><li><a href="index.html">Contents</a></li><li><a href="doc-index.html">Index</a></li></ul><p class="caption">hpath-0.7.3: Support for well-typed paths</p></div><div id="content"><div id="alphabet"><ul><li><a href="doc-index-A.html">A</a></li><li><a href="doc-index-B.html">B</a></li><li><a href="doc-index-C.html">C</a></li><li><a href="doc-index-D.html">D</a></li><li><a href="doc-index-E.html">E</a></li><li><a href="doc-index-F.html">F</a></li><li><a href="doc-index-G.html">G</a></li><li><a href="doc-index-H.html">H</a></li><li><a href="doc-index-I.html">I</a></li><li><a href="doc-index-J.html">J</a></li><li><a href="doc-index-M.html">M</a></li><li><a href="doc-index-N.html">N</a></li><li><a href="doc-index-O.html">O</a></li><li><a href="doc-index-P.html">P</a></li><li><a href="doc-index-R.html">R</a></li><li><a href="doc-index-S.html">S</a></li><li><a href="doc-index-T.html">T</a></li><li><a href="doc-index-U.html">U</a></li><li><a href="doc-index-W.html">W</a></li><li><a href="doc-index-60.html">&lt;</a></li><li><a href="doc-index-All.html">All</a></li></ul></div><div id="index"><p class="caption">Index - S</p><table><tr><td class="src">SameFile</td><td class="module"><a href="HPath-IO-Errors.html#v:SameFile">HPath.IO.Errors</a></td></tr><tr><td class="src">sameFile</td><td class="module"><a href="HPath-IO-Errors.html#v:sameFile">HPath.IO.Errors</a></td></tr><tr><td class="src">searchPathSeparator</td><td class="module"><a href="System-Posix-FilePath.html#v:searchPathSeparator">System.Posix.FilePath</a></td></tr><tr><td class="src">Socket</td><td class="module"><a href="HPath-IO.html#v:Socket">HPath.IO</a></td></tr><tr><td class="src">splitDirectories</td><td class="module"><a href="System-Posix-FilePath.html#v:splitDirectories">System.Posix.FilePath</a></td></tr><tr><td class="src">splitExtension</td><td class="module"><a href="System-Posix-FilePath.html#v:splitExtension">System.Posix.FilePath</a></td></tr><tr><td class="src">splitExtensions</td><td class="module"><a href="System-Posix-FilePath.html#v:splitExtensions">System.Posix.FilePath</a></td></tr><tr><td class="src">splitFileName</td><td class="module"><a href="System-Posix-FilePath.html#v:splitFileName">System.Posix.FilePath</a></td></tr><tr><td class="src">splitPath</td><td class="module"><a href="System-Posix-FilePath.html#v:splitPath">System.Posix.FilePath</a></td></tr><tr><td class="src">splitSearchPath</td><td class="module"><a href="System-Posix-FilePath.html#v:splitSearchPath">System.Posix.FilePath</a></td></tr><tr><td class="src">stripDir</td><td class="module"><a href="HPath.html#v:stripDir">HPath</a></td></tr><tr><td class="src">stripExtension</td><td class="module"><a href="System-Posix-FilePath.html#v:stripExtension">System.Posix.FilePath</a></td></tr><tr><td class="src">SymbolicLink</td><td class="module"><a href="HPath-IO.html#v:SymbolicLink">HPath.IO</a></td></tr></table></div></div><div id="footer"><p>Produced by <a href="http://www.haskell.org/haddock/">Haddock</a> version 2.17.2</p></div></body></html>

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>hpath-0.7.3: Support for well-typed paths (Index - T)</title><link href="ocean.css" rel="stylesheet" type="text/css" title="Ocean" /><script src="haddock-util.js" type="text/javascript"></script><script src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML" type="text/javascript"></script><script type="text/javascript">//<![CDATA[
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</script></head><body><div id="package-header"><ul class="links" id="page-menu"><li><a href="index.html">Contents</a></li><li><a href="doc-index.html">Index</a></li></ul><p class="caption">hpath-0.7.3: Support for well-typed paths</p></div><div id="content"><div id="alphabet"><ul><li><a href="doc-index-A.html">A</a></li><li><a href="doc-index-B.html">B</a></li><li><a href="doc-index-C.html">C</a></li><li><a href="doc-index-D.html">D</a></li><li><a href="doc-index-E.html">E</a></li><li><a href="doc-index-F.html">F</a></li><li><a href="doc-index-G.html">G</a></li><li><a href="doc-index-H.html">H</a></li><li><a href="doc-index-I.html">I</a></li><li><a href="doc-index-J.html">J</a></li><li><a href="doc-index-M.html">M</a></li><li><a href="doc-index-N.html">N</a></li><li><a href="doc-index-O.html">O</a></li><li><a href="doc-index-P.html">P</a></li><li><a href="doc-index-R.html">R</a></li><li><a href="doc-index-S.html">S</a></li><li><a href="doc-index-T.html">T</a></li><li><a href="doc-index-U.html">U</a></li><li><a href="doc-index-W.html">W</a></li><li><a href="doc-index-60.html">&lt;</a></li><li><a href="doc-index-All.html">All</a></li></ul></div><div id="index"><p class="caption">Index - T</p><table><tr><td class="src">takeBaseName</td><td class="module"><a href="System-Posix-FilePath.html#v:takeBaseName">System.Posix.FilePath</a></td></tr><tr><td class="src">takeDirectory</td><td class="module"><a href="System-Posix-FilePath.html#v:takeDirectory">System.Posix.FilePath</a></td></tr><tr><td class="src">takeExtension</td><td class="module"><a href="System-Posix-FilePath.html#v:takeExtension">System.Posix.FilePath</a></td></tr><tr><td class="src">takeExtensions</td><td class="module"><a href="System-Posix-FilePath.html#v:takeExtensions">System.Posix.FilePath</a></td></tr><tr><td class="src">takeFileName</td><td class="module"><a href="System-Posix-FilePath.html#v:takeFileName">System.Posix.FilePath</a></td></tr><tr><td class="src">throwCantOpenDirectory</td><td class="module"><a href="HPath-IO-Errors.html#v:throwCantOpenDirectory">HPath.IO.Errors</a></td></tr><tr><td class="src">throwDestinationInSource</td><td class="module"><a href="HPath-IO-Errors.html#v:throwDestinationInSource">HPath.IO.Errors</a></td></tr><tr><td class="src">throwDirDoesExist</td><td class="module"><a href="HPath-IO-Errors.html#v:throwDirDoesExist">HPath.IO.Errors</a></td></tr><tr><td class="src">throwDirDoesNotExist</td><td class="module"><a href="HPath-IO-Errors.html#v:throwDirDoesNotExist">HPath.IO.Errors</a></td></tr><tr><td class="src">throwErrnoPath</td><td class="module">System.Posix.FilePath</td></tr><tr><td class="src">throwErrnoPathIf</td><td class="module">System.Posix.FilePath</td></tr><tr><td class="src">throwErrnoPathIfMinus1</td><td class="module">System.Posix.FilePath</td></tr><tr><td class="src">throwErrnoPathIfMinus1Retry</td><td class="module">System.Posix.FilePath</td></tr><tr><td class="src">throwErrnoPathIfMinus1Retry_</td><td class="module">System.Posix.FilePath</td></tr><tr><td class="src">throwErrnoPathIfMinus1_</td><td class="module">System.Posix.FilePath</td></tr><tr><td class="src">throwErrnoPathIfNull</td><td class="module">System.Posix.FilePath</td></tr><tr><td class="src">throwErrnoPathIfNullRetry</td><td class="module">System.Posix.FilePath</td></tr><tr><td class="src">throwErrnoPathIfRetry</td><td class="module">System.Posix.FilePath</td></tr><tr><td class="src">throwErrnoPathIf_</td><td class="module">System.Posix.FilePath</td></tr><tr><td class="src">throwFileDoesExist</td><td class="module"><a href="HPath-IO-Errors.html#v:throwFileDoesExist">HPath.IO.Errors</a></td></tr><tr><td class="src">throwFileDoesNotExist</td><td class="module"><a href="HPath-IO-Errors.html#v:throwFileDoesNotExist">HPath.IO.Errors</a></td></tr><tr><td class="src">throwSameFile</td><td class="module"><a href="HPath-IO-Errors.html#v:throwSameFile">HPath.IO.Errors</a></td></tr><tr><td class="src">toFilePath</td><td class="module"><a href="HPath.html#v:toFilePath">HPath</a></td></tr><tr><td class="src">traverseDirectory</td><td class="module"><a href="System-Posix-Directory-Traversals.html#v:traverseDirectory">System.Posix.Directory.Traversals</a></td></tr></table></div></div><div id="footer"><p>Produced by <a href="http://www.haskell.org/haddock/">Haddock</a> version 2.17.2</p></div></body></html>

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>hpath-0.7.3: Support for well-typed paths (Index)</title><link href="ocean.css" rel="stylesheet" type="text/css" title="Ocean" /><script src="haddock-util.js" type="text/javascript"></script><script src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML" type="text/javascript"></script><script type="text/javascript">//<![CDATA[
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</script></head><body><div id="package-header"><ul class="links" id="page-menu"><li><a href="index.html">Contents</a></li><li><a href="doc-index.html">Index</a></li></ul><p class="caption">hpath-0.7.3: Support for well-typed paths</p></div><div id="content"><div id="alphabet"><ul><li><a href="doc-index-A.html">A</a></li><li><a href="doc-index-B.html">B</a></li><li><a href="doc-index-C.html">C</a></li><li><a href="doc-index-D.html">D</a></li><li><a href="doc-index-E.html">E</a></li><li><a href="doc-index-F.html">F</a></li><li><a href="doc-index-G.html">G</a></li><li><a href="doc-index-H.html">H</a></li><li><a href="doc-index-I.html">I</a></li><li><a href="doc-index-J.html">J</a></li><li><a href="doc-index-M.html">M</a></li><li><a href="doc-index-N.html">N</a></li><li><a href="doc-index-O.html">O</a></li><li><a href="doc-index-P.html">P</a></li><li><a href="doc-index-R.html">R</a></li><li><a href="doc-index-S.html">S</a></li><li><a href="doc-index-T.html">T</a></li><li><a href="doc-index-U.html">U</a></li><li><a href="doc-index-W.html">W</a></li><li><a href="doc-index-60.html">&lt;</a></li><li><a href="doc-index-All.html">All</a></li></ul></div></div><div id="footer"><p>Produced by <a href="http://www.haskell.org/haddock/">Haddock</a> version 2.17.2</p></div></body></html>

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<!DOCTYPE html
PUBLIC "-//W3C//DTD XHTML 1.0 Frameset//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-frameset.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<script src="haddock-util.js" type="text/javascript"></script>
<script type="text/javascript"><!--
/*
The synopsis frame needs to be updated using javascript, so we hide
it by default and only show it if javascript is enabled.
TODO: provide some means to disable it.
*/
function load() {
var d = document.getElementById("inner-fs");
d.rows = "50%,50%";
postReframe();
}
--></script>
</head>
<frameset id="outer-fs" cols="25%,75%" onload="load()">
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// Haddock JavaScript utilities
var rspace = /\s\s+/g,
rtrim = /^\s+|\s+$/g;
function spaced(s) { return (" " + s + " ").replace(rspace, " "); }
function trim(s) { return s.replace(rtrim, ""); }
function hasClass(elem, value) {
var className = spaced(elem.className || "");
return className.indexOf( " " + value + " " ) >= 0;
}
function addClass(elem, value) {
var className = spaced(elem.className || "");
if ( className.indexOf( " " + value + " " ) < 0 ) {
elem.className = trim(className + " " + value);
}
}
function removeClass(elem, value) {
var className = spaced(elem.className || "");
className = className.replace(" " + value + " ", " ");
elem.className = trim(className);
}
function toggleClass(elem, valueOn, valueOff, bool) {
if (bool == null) { bool = ! hasClass(elem, valueOn); }
if (bool) {
removeClass(elem, valueOff);
addClass(elem, valueOn);
}
else {
removeClass(elem, valueOn);
addClass(elem, valueOff);
}
return bool;
}
function makeClassToggle(valueOn, valueOff)
{
return function(elem, bool) {
return toggleClass(elem, valueOn, valueOff, bool);
}
}
toggleShow = makeClassToggle("show", "hide");
toggleCollapser = makeClassToggle("collapser", "expander");
function toggleSection(id)
{
var b = toggleShow(document.getElementById("section." + id));
toggleCollapser(document.getElementById("control." + id), b);
rememberCollapsed(id, b);
return b;
}
var collapsed = {};
function rememberCollapsed(id, b)
{
if(b)
delete collapsed[id]
else
collapsed[id] = null;
var sections = [];
for(var i in collapsed)
{
if(collapsed.hasOwnProperty(i))
sections.push(i);
}
// cookie specific to this page; don't use setCookie which sets path=/
document.cookie = "collapsed=" + escape(sections.join('+'));
}
function restoreCollapsed()
{
var cookie = getCookie("collapsed");
if(!cookie)
return;
var ids = cookie.split('+');
for(var i in ids)
{
if(document.getElementById("section." + ids[i]))
toggleSection(ids[i]);
}
}
function setCookie(name, value) {
document.cookie = name + "=" + escape(value) + ";path=/;";
}
function clearCookie(name) {
document.cookie = name + "=;path=/;expires=Thu, 01-Jan-1970 00:00:01 GMT;";
}
function getCookie(name) {
var nameEQ = name + "=";
var ca = document.cookie.split(';');
for(var i=0;i < ca.length;i++) {
var c = ca[i];
while (c.charAt(0)==' ') c = c.substring(1,c.length);
if (c.indexOf(nameEQ) == 0) {
return unescape(c.substring(nameEQ.length,c.length));
}
}
return null;
}
var max_results = 75; // 50 is not enough to search for map in the base libraries
var shown_range = null;
var last_search = null;
function quick_search()
{
perform_search(false);
}
function full_search()
{
perform_search(true);
}
function perform_search(full)
{
var text = document.getElementById("searchbox").value.toLowerCase();
if (text == last_search && !full) return;
last_search = text;
var table = document.getElementById("indexlist");
var status = document.getElementById("searchmsg");
var children = table.firstChild.childNodes;
// first figure out the first node with the prefix
var first = bisect(-1);
var last = (first == -1 ? -1 : bisect(1));
if (first == -1)
{
table.className = "";
status.innerHTML = "No results found, displaying all";
}
else if (first == 0 && last == children.length - 1)
{
table.className = "";
status.innerHTML = "";
}
else if (last - first >= max_results && !full)
{
table.className = "";
status.innerHTML = "More than " + max_results + ", press Search to display";
}
else
{
// decide what you need to clear/show
if (shown_range)
setclass(shown_range[0], shown_range[1], "indexrow");
setclass(first, last, "indexshow");
shown_range = [first, last];
table.className = "indexsearch";
status.innerHTML = "";
}
function setclass(first, last, status)
{
for (var i = first; i <= last; i++)
{
children[i].className = status;
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}
// do a binary search, treating 0 as ...
// return either -1 (no 0's found) or location of most far match
function bisect(dir)
{
var first = 0, finish = children.length - 1;
var mid, success = false;
while (finish - first > 3)
{
mid = Math.floor((finish + first) / 2);
var i = checkitem(mid);
if (i == 0) i = dir;
if (i == -1)
finish = mid;
else
first = mid;
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var a = (dir == 1 ? first : finish);
var b = (dir == 1 ? finish : first);
for (var i = b; i != a - dir; i -= dir)
{
if (checkitem(i) == 0) return i;
}
return -1;
}
// from an index, decide what the result is
// 0 = match, -1 is lower, 1 is higher
function checkitem(i)
{
var s = getitem(i).toLowerCase().substr(0, text.length);
if (s == text) return 0;
else return (s > text ? -1 : 1);
}
// from an index, get its string
// this abstracts over alternates
function getitem(i)
{
for ( ; i >= 0; i--)
{
var s = children[i].firstChild.firstChild.data;
if (s.indexOf(' ') == -1)
return s;
}
return ""; // should never be reached
}
}
function setSynopsis(filename) {
if (parent.window.synopsis && parent.window.synopsis.location) {
if (parent.window.synopsis.location.replace) {
// In Firefox this avoids adding the change to the history.
parent.window.synopsis.location.replace(filename);
} else {
parent.window.synopsis.location = filename;
}
}
}
function addMenuItem(html) {
var menu = document.getElementById("page-menu");
if (menu) {
var btn = menu.firstChild.cloneNode(false);
btn.innerHTML = html;
menu.appendChild(btn);
}
}
function adjustForFrames() {
var bodyCls;
if (parent.location.href == window.location.href) {
// not in frames, so add Frames button
addMenuItem("<a href='#' onclick='reframe();return true;'>Frames</a>");
bodyCls = "no-frame";
}
else {
bodyCls = "in-frame";
}
addClass(document.body, bodyCls);
}
function reframe() {
setCookie("haddock-reframe", document.URL);
window.location = "frames.html";
}
function postReframe() {
var s = getCookie("haddock-reframe");
if (s) {
parent.window.main.location = s;
clearCookie("haddock-reframe");
}
}
function styles() {
var i, a, es = document.getElementsByTagName("link"), rs = [];
for (i = 0; a = es[i]; i++) {
if(a.rel.indexOf("style") != -1 && a.title) {
rs.push(a);
}
}
return rs;
}
function addStyleMenu() {
var as = styles();
var i, a, btns = "";
for(i=0; a = as[i]; i++) {
btns += "<li><a href='#' onclick=\"setActiveStyleSheet('"
+ a.title + "'); return false;\">"
+ a.title + "</a></li>"
}
if (as.length > 1) {
var h = "<div id='style-menu-holder'>"
+ "<a href='#' onclick='styleMenu(); return false;'>Style &#9662;</a>"
+ "<ul id='style-menu' class='hide'>" + btns + "</ul>"
+ "</div>";
addMenuItem(h);
}
}
function setActiveStyleSheet(title) {
var as = styles();
var i, a, found;
for(i=0; a = as[i]; i++) {
a.disabled = true;
// need to do this always, some browsers are edge triggered
if(a.title == title) {
found = a;
}
}
if (found) {
found.disabled = false;
setCookie("haddock-style", title);
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else {
as[0].disabled = false;
clearCookie("haddock-style");
}
styleMenu(false);
}
function resetStyle() {
var s = getCookie("haddock-style");
if (s) setActiveStyleSheet(s);
}
function styleMenu(show) {
var m = document.getElementById('style-menu');
if (m) toggleShow(m, show);
}
function pageLoad() {
addStyleMenu();
adjustForFrames();
resetStyle();
restoreCollapsed();
}

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>hpath-0.7.3: Support for well-typed paths</title><link href="ocean.css" rel="stylesheet" type="text/css" title="Ocean" /><script src="haddock-util.js" type="text/javascript"></script><script src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML" type="text/javascript"></script><script type="text/javascript">//<![CDATA[
window.onload = function () {pageLoad();};
//]]>
</script></head><body id="mini"><div id="module-list"><p class="caption">Modules</p><ul><li class="module"><a href="HPath.html" target="main">HPath</a></li><li class="module"><a href="HPath-IO.html" target="main">HPath.IO</a></li><li class="module"><a href="HPath-IO-Errors.html" target="main">HPath.IO.Errors</a></li><li class="module"><a href="HPath-IO-Utils.html" target="main">HPath.IO.Utils</a></li><li class="module"><a href="System-Posix-Directory-Foreign.html" target="main">System.Posix.Directory.Foreign</a></li><li class="module"><a href="System-Posix-Directory-Traversals.html" target="main">System.Posix.Directory.Traversals</a></li><li class="module"><a href="System-Posix-FD.html" target="main">System.Posix.FD</a></li><li class="module"><a href="System-Posix-FilePath.html" target="main">System.Posix.FilePath</a></li></ul></div></body></html>

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>hpath-0.7.3: Support for well-typed paths</title><link href="ocean.css" rel="stylesheet" type="text/css" title="Ocean" /><script src="haddock-util.js" type="text/javascript"></script><script src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML" type="text/javascript"></script><script type="text/javascript">//<![CDATA[
window.onload = function () {pageLoad();};
//]]>
</script></head><body><div id="package-header"><ul class="links" id="page-menu"><li><a href="index.html">Contents</a></li><li><a href="doc-index.html">Index</a></li></ul><p class="caption">hpath-0.7.3: Support for well-typed paths</p></div><div id="content"><div id="description"><h1>hpath-0.7.3: Support for well-typed paths</h1><div class="doc"><p>Support for well-typed paths, utilizing ByteString under the hood.</p></div></div><div id="module-list"><p class="caption">Modules</p><ul><li><span class="module"><span id="control.n.1" class="collapser" onclick="toggleSection('n.1')">&nbsp;</span><a href="HPath.html">HPath</a></span><ul id="section.n.1" class="show"><li><span class="module"><span id="control.n.1.1" class="collapser" onclick="toggleSection('n.1.1')">&nbsp;</span><a href="HPath-IO.html">HPath.IO</a></span><ul id="section.n.1.1" class="show"><li><span class="module"><a href="HPath-IO-Errors.html">HPath.IO.Errors</a></span></li><li><span class="module"><a href="HPath-IO-Utils.html">HPath.IO.Utils</a></span></li></ul></li></ul></li><li><span id="control.n.2" class="module collapser" onclick="toggleSection('n.2')">System</span><ul id="section.n.2" class="show"><li><span id="control.n.2.1" class="module collapser" onclick="toggleSection('n.2.1')">Posix</span><ul id="section.n.2.1" class="show"><li><span id="control.n.2.1.1" class="module collapser" onclick="toggleSection('n.2.1.1')">Directory</span><ul id="section.n.2.1.1" class="show"><li><span class="module"><a href="System-Posix-Directory-Foreign.html">System.Posix.Directory.Foreign</a></span></li><li><span class="module"><a href="System-Posix-Directory-Traversals.html">System.Posix.Directory.Traversals</a></span></li></ul></li><li><span class="module"><a href="System-Posix-FD.html">System.Posix.FD</a></span></li><li><span class="module"><a href="System-Posix-FilePath.html">System.Posix.FilePath</a></span></li></ul></li></ul></li></ul></div></div><div id="footer"><p>Produced by <a href="http://www.haskell.org/haddock/">Haddock</a> version 2.17.2</p></div></body></html>

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>HPath.IO.Errors</title><link href="ocean.css" rel="stylesheet" type="text/css" title="Ocean" /><script src="haddock-util.js" type="text/javascript"></script><script src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML" type="text/javascript"></script><script type="text/javascript">//<![CDATA[
window.onload = function () {pageLoad();};
//]]>
</script></head><body id="mini"><div id="module-header"><p class="caption">HPath.IO.Errors</p></div><div id="interface"><h1>Types</h1><div class="top"><p class="src"><span class="keyword">data</span> <a href="HPath-IO-Errors.html#t:HPathIOException" target="main">HPathIOException</a></p></div><h1>Exception identifiers</h1><div class="top"><p class="src"><a href="HPath-IO-Errors.html#v:isFileDoesNotExist" target="main">isFileDoesNotExist</a></p></div><div class="top"><p class="src"><a href="HPath-IO-Errors.html#v:isDirDoesNotExist" target="main">isDirDoesNotExist</a></p></div><div class="top"><p class="src"><a href="HPath-IO-Errors.html#v:isSameFile" target="main">isSameFile</a></p></div><div class="top"><p class="src"><a href="HPath-IO-Errors.html#v:isDestinationInSource" target="main">isDestinationInSource</a></p></div><div class="top"><p class="src"><a href="HPath-IO-Errors.html#v:isFileDoesExist" target="main">isFileDoesExist</a></p></div><div class="top"><p class="src"><a href="HPath-IO-Errors.html#v:isDirDoesExist" target="main">isDirDoesExist</a></p></div><div class="top"><p class="src"><a href="HPath-IO-Errors.html#v:isInvalidOperation" target="main">isInvalidOperation</a></p></div><div class="top"><p class="src"><a href="HPath-IO-Errors.html#v:isCan-39-tOpenDirectory" target="main">isCan'tOpenDirectory</a></p></div><div class="top"><p class="src"><a href="HPath-IO-Errors.html#v:isCopyFailed" target="main">isCopyFailed</a></p></div><h1>Path based functions</h1><div class="top"><p class="src"><a href="HPath-IO-Errors.html#v:throwFileDoesExist" target="main">throwFileDoesExist</a></p></div><div class="top"><p class="src"><a href="HPath-IO-Errors.html#v:throwDirDoesExist" target="main">throwDirDoesExist</a></p></div><div class="top"><p class="src"><a href="HPath-IO-Errors.html#v:throwFileDoesNotExist" target="main">throwFileDoesNotExist</a></p></div><div class="top"><p class="src"><a href="HPath-IO-Errors.html#v:throwDirDoesNotExist" target="main">throwDirDoesNotExist</a></p></div><div class="top"><p class="src"><a href="HPath-IO-Errors.html#v:throwSameFile" target="main">throwSameFile</a></p></div><div class="top"><p class="src"><a href="HPath-IO-Errors.html#v:sameFile" target="main">sameFile</a></p></div><div class="top"><p class="src"><a href="HPath-IO-Errors.html#v:throwDestinationInSource" target="main">throwDestinationInSource</a></p></div><div class="top"><p class="src"><a href="HPath-IO-Errors.html#v:doesFileExist" target="main">doesFileExist</a></p></div><div class="top"><p class="src"><a href="HPath-IO-Errors.html#v:doesDirectoryExist" target="main">doesDirectoryExist</a></p></div><div class="top"><p class="src"><a href="HPath-IO-Errors.html#v:isWritable" target="main">isWritable</a></p></div><div class="top"><p class="src"><a href="HPath-IO-Errors.html#v:canOpenDirectory" target="main">canOpenDirectory</a></p></div><div class="top"><p class="src"><a href="HPath-IO-Errors.html#v:throwCantOpenDirectory" target="main">throwCantOpenDirectory</a></p></div><h1>Error handling functions</h1><div class="top"><p class="src"><a href="HPath-IO-Errors.html#v:catchErrno" target="main">catchErrno</a></p></div><div class="top"><p class="src"><a href="HPath-IO-Errors.html#v:rethrowErrnoAs" target="main">rethrowErrnoAs</a></p></div><div class="top"><p class="src"><a href="HPath-IO-Errors.html#v:handleIOError" target="main">handleIOError</a></p></div><div class="top"><p class="src"><a href="HPath-IO-Errors.html#v:bracketeer" target="main">bracketeer</a></p></div><div class="top"><p class="src"><a href="HPath-IO-Errors.html#v:reactOnError" target="main">reactOnError</a></p></div></div></body></html>

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>HPath.IO.Utils</title><link href="ocean.css" rel="stylesheet" type="text/css" title="Ocean" /><script src="haddock-util.js" type="text/javascript"></script><script src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML" type="text/javascript"></script><script type="text/javascript">//<![CDATA[
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</script></head><body id="mini"><div id="module-header"><p class="caption">HPath.IO.Utils</p></div><div id="interface"><div class="top"><p class="src"><a href="HPath-IO-Utils.html#v:whenM" target="main">whenM</a></p></div><div class="top"><p class="src"><a href="HPath-IO-Utils.html#v:unlessM" target="main">unlessM</a></p></div></div></body></html>

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>HPath.IO</title><link href="ocean.css" rel="stylesheet" type="text/css" title="Ocean" /><script src="haddock-util.js" type="text/javascript"></script><script src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML" type="text/javascript"></script><script type="text/javascript">//<![CDATA[
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</script></head><body id="mini"><div id="module-header"><p class="caption">HPath.IO</p></div><div id="interface"><h1>Types</h1><div class="top"><p class="src"><span class="keyword">data</span> <a href="HPath-IO.html#t:FileType" target="main">FileType</a></p></div><h1>File copying</h1><div class="top"><p class="src"><a href="HPath-IO.html#v:copyDirRecursive" target="main">copyDirRecursive</a></p></div><div class="top"><p class="src"><a href="HPath-IO.html#v:copyDirRecursiveOverwrite" target="main">copyDirRecursiveOverwrite</a></p></div><div class="top"><p class="src"><a href="HPath-IO.html#v:recreateSymlink" target="main">recreateSymlink</a></p></div><div class="top"><p class="src"><a href="HPath-IO.html#v:copyFile" target="main">copyFile</a></p></div><div class="top"><p class="src"><a href="HPath-IO.html#v:copyFileOverwrite" target="main">copyFileOverwrite</a></p></div><div class="top"><p class="src"><a href="HPath-IO.html#v:easyCopy" target="main">easyCopy</a></p></div><div class="top"><p class="src"><a href="HPath-IO.html#v:easyCopyOverwrite" target="main">easyCopyOverwrite</a></p></div><h1>File deletion</h1><div class="top"><p class="src"><a href="HPath-IO.html#v:deleteFile" target="main">deleteFile</a></p></div><div class="top"><p class="src"><a href="HPath-IO.html#v:deleteDir" target="main">deleteDir</a></p></div><div class="top"><p class="src"><a href="HPath-IO.html#v:deleteDirRecursive" target="main">deleteDirRecursive</a></p></div><div class="top"><p class="src"><a href="HPath-IO.html#v:easyDelete" target="main">easyDelete</a></p></div><h1>File opening</h1><div class="top"><p class="src"><a href="HPath-IO.html#v:openFile" target="main">openFile</a></p></div><div class="top"><p class="src"><a href="HPath-IO.html#v:executeFile" target="main">executeFile</a></p></div><h1>File creation</h1><div class="top"><p class="src"><a href="HPath-IO.html#v:createRegularFile" target="main">createRegularFile</a></p></div><div class="top"><p class="src"><a href="HPath-IO.html#v:createDir" target="main">createDir</a></p></div><div class="top"><p class="src"><a href="HPath-IO.html#v:createSymlink" target="main">createSymlink</a></p></div><h1>File renaming/moving</h1><div class="top"><p class="src"><a href="HPath-IO.html#v:renameFile" target="main">renameFile</a></p></div><div class="top"><p class="src"><a href="HPath-IO.html#v:moveFile" target="main">moveFile</a></p></div><div class="top"><p class="src"><a href="HPath-IO.html#v:moveFileOverwrite" target="main">moveFileOverwrite</a></p></div><h1>File permissions</h1><div class="top"><p class="src"><a href="HPath-IO.html#v:newFilePerms" target="main">newFilePerms</a></p></div><div class="top"><p class="src"><a href="HPath-IO.html#v:newDirPerms" target="main">newDirPerms</a></p></div><h1>Directory reading</h1><div class="top"><p class="src"><a href="HPath-IO.html#v:getDirsFiles" target="main">getDirsFiles</a></p></div><h1>Filetype operations</h1><div class="top"><p class="src"><a href="HPath-IO.html#v:getFileType" target="main">getFileType</a></p></div><h1>Others</h1><div class="top"><p class="src"><a href="HPath-IO.html#v:canonicalizePath" target="main">canonicalizePath</a></p></div></div></body></html>

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</script></head><body id="mini"><div id="module-header"><p class="caption">HPath</p></div><div id="interface"><h1>Types</h1><div class="top"><p class="src"><span class="keyword">data</span> <a href="HPath.html#t:Abs" target="main">Abs</a></p></div><div class="top"><p class="src"><span class="keyword">data</span> <a href="HPath.html#t:Path" target="main">Path</a> b</p></div><div class="top"><p class="src"><span class="keyword">data</span> <a href="HPath.html#t:Rel" target="main">Rel</a></p></div><div class="top"><p class="src"><span class="keyword">data</span> <a href="HPath.html#t:Fn" target="main">Fn</a></p></div><div class="top"><p class="src"><span class="keyword">data</span> <a href="HPath.html#t:PathParseException" target="main">PathParseException</a></p></div><div class="top"><p class="src"><span class="keyword">data</span> <a href="HPath.html#t:PathException" target="main">PathException</a></p></div><div class="top"><p class="src"><span class="keyword">class</span> <a href="HPath.html#t:RelC" target="main">RelC</a> m</p></div><h1>PatternSynonyms/ViewPatterns</h1><h1>Path Parsing</h1><div class="top"><p class="src"><a href="HPath.html#v:parseAbs" target="main">parseAbs</a></p></div><div class="top"><p class="src"><a href="HPath.html#v:parseFn" target="main">parseFn</a></p></div><div class="top"><p class="src"><a href="HPath.html#v:parseRel" target="main">parseRel</a></p></div><h1>Path Conversion</h1><div class="top"><p class="src"><a href="HPath.html#v:fromAbs" target="main">fromAbs</a></p></div><div class="top"><p class="src"><a href="HPath.html#v:fromRel" target="main">fromRel</a></p></div><div class="top"><p class="src"><a href="HPath.html#v:toFilePath" target="main">toFilePath</a></p></div><h1>Path Operations</h1><div class="top"><p class="src"><a href="HPath.html#v:-60--47--62-" target="main">(&lt;/&gt;)</a></p></div><div class="top"><p class="src"><a href="HPath.html#v:basename" target="main">basename</a></p></div><div class="top"><p class="src"><a href="HPath.html#v:dirname" target="main">dirname</a></p></div><div class="top"><p class="src"><a href="HPath.html#v:isParentOf" target="main">isParentOf</a></p></div><div class="top"><p class="src"><a href="HPath.html#v:getAllParents" target="main">getAllParents</a></p></div><div class="top"><p class="src"><a href="HPath.html#v:stripDir" target="main">stripDir</a></p></div><h1>Path IO helpers</h1><div class="top"><p class="src"><a href="HPath.html#v:withAbsPath" target="main">withAbsPath</a></p></div><div class="top"><p class="src"><a href="HPath.html#v:withRelPath" target="main">withRelPath</a></p></div><div class="top"><p class="src"><a href="HPath.html#v:withFnPath" target="main">withFnPath</a></p></div></div></body></html>

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>System.Posix.Directory.Traversals</title><link href="ocean.css" rel="stylesheet" type="text/css" title="Ocean" /><script src="haddock-util.js" type="text/javascript"></script><script src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML" type="text/javascript"></script><script type="text/javascript">//<![CDATA[
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</script></head><body id="mini"><div id="module-header"><p class="caption">System.Posix.Directory.Traversals</p></div><div id="interface"><div class="top"><p class="src"><a href="System-Posix-Directory-Traversals.html#v:getDirectoryContents" target="main">getDirectoryContents</a></p></div><div class="top"><p class="src"><a href="System-Posix-Directory-Traversals.html#v:getDirectoryContents-39-" target="main">getDirectoryContents'</a></p></div><div class="top"><p class="src"><a href="System-Posix-Directory-Traversals.html#v:allDirectoryContents" target="main">allDirectoryContents</a></p></div><div class="top"><p class="src"><a href="System-Posix-Directory-Traversals.html#v:allDirectoryContents-39-" target="main">allDirectoryContents'</a></p></div><div class="top"><p class="src"><a href="System-Posix-Directory-Traversals.html#v:traverseDirectory" target="main">traverseDirectory</a></p></div><div class="top"><p class="src"><a href="System-Posix-Directory-Traversals.html#v:readDirEnt" target="main">readDirEnt</a></p></div><div class="top"><p class="src"><a href="System-Posix-Directory-Traversals.html#v:packDirStream" target="main">packDirStream</a></p></div><div class="top"><p class="src"><a href="System-Posix-Directory-Traversals.html#v:unpackDirStream" target="main">unpackDirStream</a></p></div><div class="top"><p class="src"><a href="System-Posix-Directory-Traversals.html#v:fdOpendir" target="main">fdOpendir</a></p></div><div class="top"><p class="src"><a href="System-Posix-Directory-Traversals.html#v:realpath" target="main">realpath</a></p></div></div></body></html>

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<!-- Generated by HsColour, http://code.haskell.org/~malcolm/hscolour/ -->
<title>src/HPath/IO/Errors.hs</title>
<link type='text/css' rel='stylesheet' href='hscolour.css' />
</head>
<body>
<pre><a name="line-1"></a><span class='hs-comment'>-- |</span>
<a name="line-2"></a><span class='hs-comment'>-- Module : HPath.IO.Errors</span>
<a name="line-3"></a><span class='hs-comment'>-- Copyright : © 2016 Julian Ospald</span>
<a name="line-4"></a><span class='hs-comment'>-- License : GPL-2</span>
<a name="line-5"></a><span class='hs-comment'>--</span>
<a name="line-6"></a><span class='hs-comment'>-- Maintainer : Julian Ospald &lt;hasufell@posteo.de&gt;</span>
<a name="line-7"></a><span class='hs-comment'>-- Stability : experimental</span>
<a name="line-8"></a><span class='hs-comment'>-- Portability : portable</span>
<a name="line-9"></a><span class='hs-comment'>--</span>
<a name="line-10"></a><span class='hs-comment'>-- Provides error handling.</span>
<a name="line-11"></a>
<a name="line-12"></a><span class='hs-comment'>{-# LANGUAGE DeriveDataTypeable #-}</span>
<a name="line-13"></a><span class='hs-comment'>{-# LANGUAGE ScopedTypeVariables #-}</span>
<a name="line-14"></a>
<a name="line-15"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>HPath</span><span class='hs-varop'>.</span><span class='hs-conid'>IO</span><span class='hs-varop'>.</span><span class='hs-conid'>Errors</span>
<a name="line-16"></a> <span class='hs-layout'>(</span>
<a name="line-17"></a> <span class='hs-comment'>-- * Types</span>
<a name="line-18"></a> <span class='hs-conid'>HPathIOException</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-19"></a>
<a name="line-20"></a> <span class='hs-comment'>-- * Exception identifiers</span>
<a name="line-21"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>isFileDoesNotExist</span>
<a name="line-22"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>isDirDoesNotExist</span>
<a name="line-23"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>isSameFile</span>
<a name="line-24"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>isDestinationInSource</span>
<a name="line-25"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>isFileDoesExist</span>
<a name="line-26"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>isDirDoesExist</span>
<a name="line-27"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>isInvalidOperation</span>
<a name="line-28"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>isCan'tOpenDirectory</span>
<a name="line-29"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>isCopyFailed</span>
<a name="line-30"></a>
<a name="line-31"></a> <span class='hs-comment'>-- * Path based functions</span>
<a name="line-32"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>throwFileDoesExist</span>
<a name="line-33"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>throwDirDoesExist</span>
<a name="line-34"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>throwFileDoesNotExist</span>
<a name="line-35"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>throwDirDoesNotExist</span>
<a name="line-36"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>throwSameFile</span>
<a name="line-37"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>sameFile</span>
<a name="line-38"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>throwDestinationInSource</span>
<a name="line-39"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>doesFileExist</span>
<a name="line-40"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>doesDirectoryExist</span>
<a name="line-41"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>isWritable</span>
<a name="line-42"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>canOpenDirectory</span>
<a name="line-43"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>throwCantOpenDirectory</span>
<a name="line-44"></a>
<a name="line-45"></a> <span class='hs-comment'>-- * Error handling functions</span>
<a name="line-46"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>catchErrno</span>
<a name="line-47"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>rethrowErrnoAs</span>
<a name="line-48"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>handleIOError</span>
<a name="line-49"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>bracketeer</span>
<a name="line-50"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>reactOnError</span>
<a name="line-51"></a> <span class='hs-layout'>)</span>
<a name="line-52"></a> <span class='hs-keyword'>where</span>
<a name="line-53"></a>
<a name="line-54"></a>
<a name="line-55"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Applicative</span>
<a name="line-56"></a> <span class='hs-layout'>(</span>
<a name="line-57"></a> <span class='hs-layout'>(</span><span class='hs-varop'>&lt;$&gt;</span><span class='hs-layout'>)</span>
<a name="line-58"></a> <span class='hs-layout'>)</span>
<a name="line-59"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Exception</span>
<a name="line-60"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span>
<a name="line-61"></a> <span class='hs-layout'>(</span>
<a name="line-62"></a> <span class='hs-varid'>forM</span>
<a name="line-63"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>when</span>
<a name="line-64"></a> <span class='hs-layout'>)</span>
<a name="line-65"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span>
<a name="line-66"></a> <span class='hs-layout'>(</span>
<a name="line-67"></a> <span class='hs-conid'>ByteString</span>
<a name="line-68"></a> <span class='hs-layout'>)</span>
<a name="line-69"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-varop'>.</span><span class='hs-conid'>UTF8</span>
<a name="line-70"></a> <span class='hs-layout'>(</span>
<a name="line-71"></a> <span class='hs-varid'>toString</span>
<a name="line-72"></a> <span class='hs-layout'>)</span>
<a name="line-73"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Data</span>
<a name="line-74"></a> <span class='hs-layout'>(</span>
<a name="line-75"></a> <span class='hs-conid'>Data</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-76"></a> <span class='hs-layout'>)</span>
<a name="line-77"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Typeable</span>
<a name="line-78"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Foreign</span><span class='hs-varop'>.</span><span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-conid'>Error</span>
<a name="line-79"></a> <span class='hs-layout'>(</span>
<a name="line-80"></a> <span class='hs-varid'>getErrno</span>
<a name="line-81"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Errno</span>
<a name="line-82"></a> <span class='hs-layout'>)</span>
<a name="line-83"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>GHC</span><span class='hs-varop'>.</span><span class='hs-conid'>IO</span><span class='hs-varop'>.</span><span class='hs-conid'>Exception</span>
<a name="line-84"></a> <span class='hs-layout'>(</span>
<a name="line-85"></a> <span class='hs-conid'>IOErrorType</span>
<a name="line-86"></a> <span class='hs-layout'>)</span>
<a name="line-87"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>HPath</span>
<a name="line-88"></a><span class='hs-keyword'>import</span> <span class='hs-comment'>{-# SOURCE #-}</span> <span class='hs-conid'>HPath</span><span class='hs-varop'>.</span><span class='hs-conid'>IO</span>
<a name="line-89"></a> <span class='hs-layout'>(</span>
<a name="line-90"></a> <span class='hs-varid'>canonicalizePath</span>
<a name="line-91"></a> <span class='hs-layout'>)</span>
<a name="line-92"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>HPath</span><span class='hs-varop'>.</span><span class='hs-conid'>IO</span><span class='hs-varop'>.</span><span class='hs-conid'>Utils</span>
<a name="line-93"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>IO</span><span class='hs-varop'>.</span><span class='hs-conid'>Error</span>
<a name="line-94"></a> <span class='hs-layout'>(</span>
<a name="line-95"></a> <span class='hs-varid'>catchIOError</span>
<a name="line-96"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>ioeGetErrorType</span>
<a name="line-97"></a> <span class='hs-layout'>)</span>
<a name="line-98"></a>
<a name="line-99"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>Directory</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>PFD</span>
<a name="line-100"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>Files</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span>
<a name="line-101"></a> <span class='hs-layout'>(</span>
<a name="line-102"></a> <span class='hs-varid'>fileAccess</span>
<a name="line-103"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>getFileStatus</span>
<a name="line-104"></a> <span class='hs-layout'>)</span>
<a name="line-105"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>Files</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>PF</span>
<a name="line-106"></a>
<a name="line-107"></a>
<a name="line-108"></a><a name="HPathIOException"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>HPathIOException</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>FileDoesNotExist</span> <span class='hs-conid'>ByteString</span>
<a name="line-109"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>DirDoesNotExist</span> <span class='hs-conid'>ByteString</span>
<a name="line-110"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>SameFile</span> <span class='hs-conid'>ByteString</span> <span class='hs-conid'>ByteString</span>
<a name="line-111"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>DestinationInSource</span> <span class='hs-conid'>ByteString</span> <span class='hs-conid'>ByteString</span>
<a name="line-112"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>FileDoesExist</span> <span class='hs-conid'>ByteString</span>
<a name="line-113"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>DirDoesExist</span> <span class='hs-conid'>ByteString</span>
<a name="line-114"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>InvalidOperation</span> <span class='hs-conid'>String</span>
<a name="line-115"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Can'tOpenDirectory</span> <span class='hs-conid'>ByteString</span>
<a name="line-116"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>CopyFailed</span> <span class='hs-conid'>String</span>
<a name="line-117"></a> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Typeable</span><span class='hs-layout'>,</span> <span class='hs-conid'>Eq</span><span class='hs-layout'>,</span> <span class='hs-conid'>Data</span><span class='hs-layout'>)</span>
<a name="line-118"></a>
<a name="line-119"></a>
<a name="line-120"></a><a name="instance%20Show%20HPathIOException"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Show</span> <span class='hs-conid'>HPathIOException</span> <span class='hs-keyword'>where</span>
<a name="line-121"></a> <span class='hs-varid'>show</span> <span class='hs-layout'>(</span><span class='hs-conid'>FileDoesNotExist</span> <span class='hs-varid'>fp</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"File does not exist:"</span> <span class='hs-varop'>++</span> <span class='hs-varid'>toString</span> <span class='hs-varid'>fp</span>
<a name="line-122"></a> <span class='hs-varid'>show</span> <span class='hs-layout'>(</span><span class='hs-conid'>DirDoesNotExist</span> <span class='hs-varid'>fp</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"Directory does not exist: "</span>
<a name="line-123"></a> <span class='hs-varop'>++</span> <span class='hs-varid'>toString</span> <span class='hs-varid'>fp</span>
<a name="line-124"></a> <span class='hs-varid'>show</span> <span class='hs-layout'>(</span><span class='hs-conid'>SameFile</span> <span class='hs-varid'>fp1</span> <span class='hs-varid'>fp2</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toString</span> <span class='hs-varid'>fp1</span>
<a name="line-125"></a> <span class='hs-varop'>++</span> <span class='hs-str'>" and "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>toString</span> <span class='hs-varid'>fp2</span>
<a name="line-126"></a> <span class='hs-varop'>++</span> <span class='hs-str'>" are the same file!"</span>
<a name="line-127"></a> <span class='hs-varid'>show</span> <span class='hs-layout'>(</span><span class='hs-conid'>DestinationInSource</span> <span class='hs-varid'>fp1</span> <span class='hs-varid'>fp2</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toString</span> <span class='hs-varid'>fp1</span>
<a name="line-128"></a> <span class='hs-varop'>++</span> <span class='hs-str'>" is contained in "</span>
<a name="line-129"></a> <span class='hs-varop'>++</span> <span class='hs-varid'>toString</span> <span class='hs-varid'>fp2</span>
<a name="line-130"></a> <span class='hs-varid'>show</span> <span class='hs-layout'>(</span><span class='hs-conid'>FileDoesExist</span> <span class='hs-varid'>fp</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"File does exist: "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>toString</span> <span class='hs-varid'>fp</span>
<a name="line-131"></a> <span class='hs-varid'>show</span> <span class='hs-layout'>(</span><span class='hs-conid'>DirDoesExist</span> <span class='hs-varid'>fp</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"Directory does exist: "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>toString</span> <span class='hs-varid'>fp</span>
<a name="line-132"></a> <span class='hs-varid'>show</span> <span class='hs-layout'>(</span><span class='hs-conid'>InvalidOperation</span> <span class='hs-varid'>str</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"Invalid operation: "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>str</span>
<a name="line-133"></a> <span class='hs-varid'>show</span> <span class='hs-layout'>(</span><span class='hs-conid'>Can'tOpenDirectory</span> <span class='hs-varid'>fp</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"Can't open directory: "</span>
<a name="line-134"></a> <span class='hs-varop'>++</span> <span class='hs-varid'>toString</span> <span class='hs-varid'>fp</span>
<a name="line-135"></a> <span class='hs-varid'>show</span> <span class='hs-layout'>(</span><span class='hs-conid'>CopyFailed</span> <span class='hs-varid'>str</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"Copying failed: "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>str</span>
<a name="line-136"></a>
<a name="line-137"></a>
<a name="line-138"></a>
<a name="line-139"></a><a name="instance%20Exception%20HPathIOException"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Exception</span> <span class='hs-conid'>HPathIOException</span>
<a name="line-140"></a>
<a name="line-141"></a>
<a name="line-142"></a>
<a name="line-143"></a>
<a name="line-144"></a>
<a name="line-145"></a> <span class='hs-comment'>-----------------------------</span>
<a name="line-146"></a> <span class='hs-comment'>--[ Exception identifiers ]--</span>
<a name="line-147"></a> <span class='hs-comment'>-----------------------------</span>
<a name="line-148"></a>
<a name="line-149"></a><a name="isFileDoesNotExist"></a><span class='hs-definition'>isFileDoesNotExist</span><span class='hs-layout'>,</span> <span class='hs-varid'>isDirDoesNotExist</span><span class='hs-layout'>,</span> <span class='hs-varid'>isSameFile</span><span class='hs-layout'>,</span> <span class='hs-varid'>isDestinationInSource</span><span class='hs-layout'>,</span> <span class='hs-varid'>isFileDoesExist</span><span class='hs-layout'>,</span> <span class='hs-varid'>isDirDoesExist</span><span class='hs-layout'>,</span> <span class='hs-varid'>isInvalidOperation</span><span class='hs-layout'>,</span> <span class='hs-varid'>isCan'tOpenDirectory</span><span class='hs-layout'>,</span> <span class='hs-varid'>isCopyFailed</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>HPathIOException</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Bool</span>
<a name="line-150"></a><span class='hs-definition'>isFileDoesNotExist</span> <span class='hs-varid'>ex</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toConstr</span> <span class='hs-layout'>(</span><span class='hs-varid'>ex</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>HPathIOException</span><span class='hs-layout'>)</span> <span class='hs-varop'>==</span> <span class='hs-varid'>toConstr</span> <span class='hs-conid'>FileDoesNotExist</span><span class='hs-layout'>{</span><span class='hs-layout'>}</span>
<a name="line-151"></a><a name="isDirDoesNotExist"></a><span class='hs-definition'>isDirDoesNotExist</span> <span class='hs-varid'>ex</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toConstr</span> <span class='hs-layout'>(</span><span class='hs-varid'>ex</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>HPathIOException</span><span class='hs-layout'>)</span> <span class='hs-varop'>==</span> <span class='hs-varid'>toConstr</span> <span class='hs-conid'>DirDoesNotExist</span><span class='hs-layout'>{</span><span class='hs-layout'>}</span>
<a name="line-152"></a><a name="isSameFile"></a><span class='hs-definition'>isSameFile</span> <span class='hs-varid'>ex</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toConstr</span> <span class='hs-layout'>(</span><span class='hs-varid'>ex</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>HPathIOException</span><span class='hs-layout'>)</span> <span class='hs-varop'>==</span> <span class='hs-varid'>toConstr</span> <span class='hs-conid'>SameFile</span><span class='hs-layout'>{</span><span class='hs-layout'>}</span>
<a name="line-153"></a><a name="isDestinationInSource"></a><span class='hs-definition'>isDestinationInSource</span> <span class='hs-varid'>ex</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toConstr</span> <span class='hs-layout'>(</span><span class='hs-varid'>ex</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>HPathIOException</span><span class='hs-layout'>)</span> <span class='hs-varop'>==</span> <span class='hs-varid'>toConstr</span> <span class='hs-conid'>DestinationInSource</span><span class='hs-layout'>{</span><span class='hs-layout'>}</span>
<a name="line-154"></a><a name="isFileDoesExist"></a><span class='hs-definition'>isFileDoesExist</span> <span class='hs-varid'>ex</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toConstr</span> <span class='hs-layout'>(</span><span class='hs-varid'>ex</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>HPathIOException</span><span class='hs-layout'>)</span> <span class='hs-varop'>==</span> <span class='hs-varid'>toConstr</span> <span class='hs-conid'>FileDoesExist</span><span class='hs-layout'>{</span><span class='hs-layout'>}</span>
<a name="line-155"></a><a name="isDirDoesExist"></a><span class='hs-definition'>isDirDoesExist</span> <span class='hs-varid'>ex</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toConstr</span> <span class='hs-layout'>(</span><span class='hs-varid'>ex</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>HPathIOException</span><span class='hs-layout'>)</span> <span class='hs-varop'>==</span> <span class='hs-varid'>toConstr</span> <span class='hs-conid'>DirDoesExist</span><span class='hs-layout'>{</span><span class='hs-layout'>}</span>
<a name="line-156"></a><a name="isInvalidOperation"></a><span class='hs-definition'>isInvalidOperation</span> <span class='hs-varid'>ex</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toConstr</span> <span class='hs-layout'>(</span><span class='hs-varid'>ex</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>HPathIOException</span><span class='hs-layout'>)</span> <span class='hs-varop'>==</span> <span class='hs-varid'>toConstr</span> <span class='hs-conid'>InvalidOperation</span><span class='hs-layout'>{</span><span class='hs-layout'>}</span>
<a name="line-157"></a><a name="isCan'tOpenDirectory"></a><span class='hs-definition'>isCan'tOpenDirectory</span> <span class='hs-varid'>ex</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toConstr</span> <span class='hs-layout'>(</span><span class='hs-varid'>ex</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>HPathIOException</span><span class='hs-layout'>)</span> <span class='hs-varop'>==</span> <span class='hs-varid'>toConstr</span> <span class='hs-conid'>Can'tOpenDirectory</span><span class='hs-layout'>{</span><span class='hs-layout'>}</span>
<a name="line-158"></a><a name="isCopyFailed"></a><span class='hs-definition'>isCopyFailed</span> <span class='hs-varid'>ex</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toConstr</span> <span class='hs-layout'>(</span><span class='hs-varid'>ex</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>HPathIOException</span><span class='hs-layout'>)</span> <span class='hs-varop'>==</span> <span class='hs-varid'>toConstr</span> <span class='hs-conid'>CopyFailed</span><span class='hs-layout'>{</span><span class='hs-layout'>}</span>
<a name="line-159"></a>
<a name="line-160"></a>
<a name="line-161"></a>
<a name="line-162"></a>
<a name="line-163"></a> <span class='hs-comment'>----------------------------</span>
<a name="line-164"></a> <span class='hs-comment'>--[ Path based functions ]--</span>
<a name="line-165"></a> <span class='hs-comment'>----------------------------</span>
<a name="line-166"></a>
<a name="line-167"></a>
<a name="line-168"></a><a name="throwFileDoesExist"></a><span class='hs-definition'>throwFileDoesExist</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-169"></a><span class='hs-definition'>throwFileDoesExist</span> <span class='hs-varid'>fp</span> <span class='hs-keyglyph'>=</span>
<a name="line-170"></a> <span class='hs-varid'>whenM</span> <span class='hs-layout'>(</span><span class='hs-varid'>doesFileExist</span> <span class='hs-varid'>fp</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>throwIO</span> <span class='hs-varop'>.</span> <span class='hs-conid'>FileDoesExist</span>
<a name="line-171"></a> <span class='hs-varop'>.</span> <span class='hs-varid'>fromAbs</span> <span class='hs-varop'>$</span> <span class='hs-varid'>fp</span><span class='hs-layout'>)</span>
<a name="line-172"></a>
<a name="line-173"></a>
<a name="line-174"></a><a name="throwDirDoesExist"></a><span class='hs-definition'>throwDirDoesExist</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-175"></a><span class='hs-definition'>throwDirDoesExist</span> <span class='hs-varid'>fp</span> <span class='hs-keyglyph'>=</span>
<a name="line-176"></a> <span class='hs-varid'>whenM</span> <span class='hs-layout'>(</span><span class='hs-varid'>doesDirectoryExist</span> <span class='hs-varid'>fp</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>throwIO</span> <span class='hs-varop'>.</span> <span class='hs-conid'>DirDoesExist</span>
<a name="line-177"></a> <span class='hs-varop'>.</span> <span class='hs-varid'>fromAbs</span> <span class='hs-varop'>$</span> <span class='hs-varid'>fp</span><span class='hs-layout'>)</span>
<a name="line-178"></a>
<a name="line-179"></a>
<a name="line-180"></a><a name="throwFileDoesNotExist"></a><span class='hs-definition'>throwFileDoesNotExist</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-181"></a><span class='hs-definition'>throwFileDoesNotExist</span> <span class='hs-varid'>fp</span> <span class='hs-keyglyph'>=</span>
<a name="line-182"></a> <span class='hs-varid'>unlessM</span> <span class='hs-layout'>(</span><span class='hs-varid'>doesFileExist</span> <span class='hs-varid'>fp</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>throwIO</span> <span class='hs-varop'>.</span> <span class='hs-conid'>FileDoesNotExist</span>
<a name="line-183"></a> <span class='hs-varop'>.</span> <span class='hs-varid'>fromAbs</span> <span class='hs-varop'>$</span> <span class='hs-varid'>fp</span><span class='hs-layout'>)</span>
<a name="line-184"></a>
<a name="line-185"></a>
<a name="line-186"></a><a name="throwDirDoesNotExist"></a><span class='hs-definition'>throwDirDoesNotExist</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-187"></a><span class='hs-definition'>throwDirDoesNotExist</span> <span class='hs-varid'>fp</span> <span class='hs-keyglyph'>=</span>
<a name="line-188"></a> <span class='hs-varid'>unlessM</span> <span class='hs-layout'>(</span><span class='hs-varid'>doesDirectoryExist</span> <span class='hs-varid'>fp</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>throwIO</span> <span class='hs-varop'>.</span> <span class='hs-conid'>DirDoesNotExist</span>
<a name="line-189"></a> <span class='hs-varop'>.</span> <span class='hs-varid'>fromAbs</span> <span class='hs-varop'>$</span> <span class='hs-varid'>fp</span><span class='hs-layout'>)</span>
<a name="line-190"></a>
<a name="line-191"></a>
<a name="line-192"></a><a name="throwSameFile"></a><span class='hs-comment'>-- |Uses `isSameFile` and throws `SameFile` if it returns True.</span>
<a name="line-193"></a><span class='hs-definition'>throwSameFile</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span>
<a name="line-194"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span>
<a name="line-195"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-196"></a><span class='hs-definition'>throwSameFile</span> <span class='hs-varid'>fp1</span> <span class='hs-varid'>fp2</span> <span class='hs-keyglyph'>=</span>
<a name="line-197"></a> <span class='hs-varid'>whenM</span> <span class='hs-layout'>(</span><span class='hs-varid'>sameFile</span> <span class='hs-varid'>fp1</span> <span class='hs-varid'>fp2</span><span class='hs-layout'>)</span>
<a name="line-198"></a> <span class='hs-layout'>(</span><span class='hs-varid'>throwIO</span> <span class='hs-varop'>$</span> <span class='hs-conid'>SameFile</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromAbs</span> <span class='hs-varid'>fp1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromAbs</span> <span class='hs-varid'>fp2</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-199"></a>
<a name="line-200"></a>
<a name="line-201"></a><a name="sameFile"></a><span class='hs-comment'>-- |Check if the files are the same by examining device and file id.</span>
<a name="line-202"></a><span class='hs-comment'>-- This follows symbolic links.</span>
<a name="line-203"></a><span class='hs-definition'>sameFile</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Bool</span>
<a name="line-204"></a><span class='hs-definition'>sameFile</span> <span class='hs-varid'>fp1</span> <span class='hs-varid'>fp2</span> <span class='hs-keyglyph'>=</span>
<a name="line-205"></a> <span class='hs-varid'>withAbsPath</span> <span class='hs-varid'>fp1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>fp1'</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>withAbsPath</span> <span class='hs-varid'>fp2</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>fp2'</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-206"></a> <span class='hs-varid'>handleIOError</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>return</span> <span class='hs-conid'>False</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span>
<a name="line-207"></a> <span class='hs-varid'>fs1</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>getFileStatus</span> <span class='hs-varid'>fp1'</span>
<a name="line-208"></a> <span class='hs-varid'>fs2</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>getFileStatus</span> <span class='hs-varid'>fp2'</span>
<a name="line-209"></a>
<a name="line-210"></a> <span class='hs-keyword'>if</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>PF</span><span class='hs-varop'>.</span><span class='hs-varid'>deviceID</span> <span class='hs-varid'>fs1</span><span class='hs-layout'>,</span> <span class='hs-conid'>PF</span><span class='hs-varop'>.</span><span class='hs-varid'>fileID</span> <span class='hs-varid'>fs1</span><span class='hs-layout'>)</span> <span class='hs-varop'>==</span>
<a name="line-211"></a> <span class='hs-layout'>(</span><span class='hs-conid'>PF</span><span class='hs-varop'>.</span><span class='hs-varid'>deviceID</span> <span class='hs-varid'>fs2</span><span class='hs-layout'>,</span> <span class='hs-conid'>PF</span><span class='hs-varop'>.</span><span class='hs-varid'>fileID</span> <span class='hs-varid'>fs2</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-212"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>return</span> <span class='hs-conid'>True</span>
<a name="line-213"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>return</span> <span class='hs-conid'>False</span>
<a name="line-214"></a>
<a name="line-215"></a>
<a name="line-216"></a><a name="throwDestinationInSource"></a><span class='hs-comment'>-- TODO: make this more robust when destination does not exist</span>
<a name="line-217"></a><span class='hs-comment'>-- |Checks whether the destination directory is contained</span>
<a name="line-218"></a><span class='hs-comment'>-- within the source directory by comparing the device+file ID of the</span>
<a name="line-219"></a><span class='hs-comment'>-- source directory with all device+file IDs of the parent directories</span>
<a name="line-220"></a><span class='hs-comment'>-- of the destination.</span>
<a name="line-221"></a><span class='hs-definition'>throwDestinationInSource</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-comment'>-- ^ source dir</span>
<a name="line-222"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-comment'>-- ^ full destination, @dirname dest@</span>
<a name="line-223"></a> <span class='hs-comment'>-- must exist</span>
<a name="line-224"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-225"></a><span class='hs-definition'>throwDestinationInSource</span> <span class='hs-varid'>source</span> <span class='hs-varid'>dest</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-226"></a> <span class='hs-varid'>dest'</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>x</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>maybe</span> <span class='hs-varid'>x</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>y</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>x</span> <span class='hs-varop'>&lt;/&gt;</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>basename</span> <span class='hs-varid'>dest</span><span class='hs-layout'>)</span>
<a name="line-227"></a> <span class='hs-varop'>&lt;$&gt;</span> <span class='hs-layout'>(</span><span class='hs-varid'>canonicalizePath</span> <span class='hs-varop'>$</span> <span class='hs-varid'>dirname</span> <span class='hs-varid'>dest</span><span class='hs-layout'>)</span>
<a name="line-228"></a> <span class='hs-varid'>dids</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>forM</span> <span class='hs-layout'>(</span><span class='hs-varid'>getAllParents</span> <span class='hs-varid'>dest'</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>p</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-229"></a> <span class='hs-varid'>fs</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>PF</span><span class='hs-varop'>.</span><span class='hs-varid'>getSymbolicLinkStatus</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromAbs</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span>
<a name="line-230"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>PF</span><span class='hs-varop'>.</span><span class='hs-varid'>deviceID</span> <span class='hs-varid'>fs</span><span class='hs-layout'>,</span> <span class='hs-conid'>PF</span><span class='hs-varop'>.</span><span class='hs-varid'>fileID</span> <span class='hs-varid'>fs</span><span class='hs-layout'>)</span>
<a name="line-231"></a> <span class='hs-varid'>sid</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>fmap</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>x</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-conid'>PF</span><span class='hs-varop'>.</span><span class='hs-varid'>deviceID</span> <span class='hs-varid'>x</span><span class='hs-layout'>,</span> <span class='hs-conid'>PF</span><span class='hs-varop'>.</span><span class='hs-varid'>fileID</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-232"></a> <span class='hs-varop'>$</span> <span class='hs-conid'>PF</span><span class='hs-varop'>.</span><span class='hs-varid'>getFileStatus</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromAbs</span> <span class='hs-varid'>source</span><span class='hs-layout'>)</span>
<a name="line-233"></a> <span class='hs-varid'>when</span> <span class='hs-layout'>(</span><span class='hs-varid'>elem</span> <span class='hs-varid'>sid</span> <span class='hs-varid'>dids</span><span class='hs-layout'>)</span>
<a name="line-234"></a> <span class='hs-layout'>(</span><span class='hs-varid'>throwIO</span> <span class='hs-varop'>$</span> <span class='hs-conid'>DestinationInSource</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromAbs</span> <span class='hs-varid'>dest</span><span class='hs-layout'>)</span>
<a name="line-235"></a> <span class='hs-layout'>(</span><span class='hs-varid'>fromAbs</span> <span class='hs-varid'>source</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-236"></a>
<a name="line-237"></a>
<a name="line-238"></a><a name="doesFileExist"></a><span class='hs-comment'>-- |Checks if the given file exists and is not a directory.</span>
<a name="line-239"></a><span class='hs-comment'>-- Does not follow symlinks.</span>
<a name="line-240"></a><span class='hs-definition'>doesFileExist</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Bool</span>
<a name="line-241"></a><span class='hs-definition'>doesFileExist</span> <span class='hs-varid'>fp</span> <span class='hs-keyglyph'>=</span>
<a name="line-242"></a> <span class='hs-varid'>handleIOError</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>return</span> <span class='hs-conid'>False</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span>
<a name="line-243"></a> <span class='hs-varid'>fs</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>PF</span><span class='hs-varop'>.</span><span class='hs-varid'>getSymbolicLinkStatus</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromAbs</span> <span class='hs-varid'>fp</span><span class='hs-layout'>)</span>
<a name="line-244"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-varid'>not</span> <span class='hs-varop'>.</span> <span class='hs-conid'>PF</span><span class='hs-varop'>.</span><span class='hs-varid'>isDirectory</span> <span class='hs-varop'>$</span> <span class='hs-varid'>fs</span>
<a name="line-245"></a>
<a name="line-246"></a>
<a name="line-247"></a><a name="doesDirectoryExist"></a><span class='hs-comment'>-- |Checks if the given file exists and is a directory.</span>
<a name="line-248"></a><span class='hs-comment'>-- Does not follow symlinks.</span>
<a name="line-249"></a><span class='hs-definition'>doesDirectoryExist</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Bool</span>
<a name="line-250"></a><span class='hs-definition'>doesDirectoryExist</span> <span class='hs-varid'>fp</span> <span class='hs-keyglyph'>=</span>
<a name="line-251"></a> <span class='hs-varid'>handleIOError</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>return</span> <span class='hs-conid'>False</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span>
<a name="line-252"></a> <span class='hs-varid'>fs</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>PF</span><span class='hs-varop'>.</span><span class='hs-varid'>getSymbolicLinkStatus</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromAbs</span> <span class='hs-varid'>fp</span><span class='hs-layout'>)</span>
<a name="line-253"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>PF</span><span class='hs-varop'>.</span><span class='hs-varid'>isDirectory</span> <span class='hs-varid'>fs</span>
<a name="line-254"></a>
<a name="line-255"></a>
<a name="line-256"></a><a name="isWritable"></a><span class='hs-comment'>-- |Checks whether a file or folder is writable.</span>
<a name="line-257"></a><span class='hs-definition'>isWritable</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Bool</span>
<a name="line-258"></a><span class='hs-definition'>isWritable</span> <span class='hs-varid'>fp</span> <span class='hs-keyglyph'>=</span>
<a name="line-259"></a> <span class='hs-varid'>handleIOError</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>return</span> <span class='hs-conid'>False</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span>
<a name="line-260"></a> <span class='hs-varid'>fileAccess</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromAbs</span> <span class='hs-varid'>fp</span><span class='hs-layout'>)</span> <span class='hs-conid'>False</span> <span class='hs-conid'>True</span> <span class='hs-conid'>False</span>
<a name="line-261"></a>
<a name="line-262"></a>
<a name="line-263"></a><a name="canOpenDirectory"></a><span class='hs-comment'>-- |Checks whether the directory at the given path exists and can be</span>
<a name="line-264"></a><span class='hs-comment'>-- opened. This invokes `openDirStream` which follows symlinks.</span>
<a name="line-265"></a><span class='hs-definition'>canOpenDirectory</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Bool</span>
<a name="line-266"></a><span class='hs-definition'>canOpenDirectory</span> <span class='hs-varid'>fp</span> <span class='hs-keyglyph'>=</span>
<a name="line-267"></a> <span class='hs-varid'>handleIOError</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>return</span> <span class='hs-conid'>False</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span>
<a name="line-268"></a> <span class='hs-varid'>bracket</span> <span class='hs-layout'>(</span><span class='hs-conid'>PFD</span><span class='hs-varop'>.</span><span class='hs-varid'>openDirStream</span> <span class='hs-varop'>.</span> <span class='hs-varid'>fromAbs</span> <span class='hs-varop'>$</span> <span class='hs-varid'>fp</span><span class='hs-layout'>)</span>
<a name="line-269"></a> <span class='hs-conid'>PFD</span><span class='hs-varop'>.</span><span class='hs-varid'>closeDirStream</span>
<a name="line-270"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span>
<a name="line-271"></a> <span class='hs-varid'>return</span> <span class='hs-conid'>True</span>
<a name="line-272"></a>
<a name="line-273"></a>
<a name="line-274"></a><a name="throwCantOpenDirectory"></a><span class='hs-comment'>-- |Throws a `Can'tOpenDirectory` HPathIOException if the directory at the given</span>
<a name="line-275"></a><span class='hs-comment'>-- path cannot be opened.</span>
<a name="line-276"></a><span class='hs-definition'>throwCantOpenDirectory</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-277"></a><span class='hs-definition'>throwCantOpenDirectory</span> <span class='hs-varid'>fp</span> <span class='hs-keyglyph'>=</span>
<a name="line-278"></a> <span class='hs-varid'>unlessM</span> <span class='hs-layout'>(</span><span class='hs-varid'>canOpenDirectory</span> <span class='hs-varid'>fp</span><span class='hs-layout'>)</span>
<a name="line-279"></a> <span class='hs-layout'>(</span><span class='hs-varid'>throwIO</span> <span class='hs-varop'>.</span> <span class='hs-conid'>Can'tOpenDirectory</span> <span class='hs-varop'>.</span> <span class='hs-varid'>fromAbs</span> <span class='hs-varop'>$</span> <span class='hs-varid'>fp</span><span class='hs-layout'>)</span>
<a name="line-280"></a>
<a name="line-281"></a>
<a name="line-282"></a>
<a name="line-283"></a> <span class='hs-comment'>--------------------------------</span>
<a name="line-284"></a> <span class='hs-comment'>--[ Error handling functions ]--</span>
<a name="line-285"></a> <span class='hs-comment'>--------------------------------</span>
<a name="line-286"></a>
<a name="line-287"></a>
<a name="line-288"></a><a name="catchErrno"></a><span class='hs-comment'>-- |Carries out an action, then checks if there is an IOException and</span>
<a name="line-289"></a><span class='hs-comment'>-- a specific errno. If so, then it carries out another action, otherwise</span>
<a name="line-290"></a><span class='hs-comment'>-- it rethrows the error.</span>
<a name="line-291"></a><span class='hs-definition'>catchErrno</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Errno</span><span class='hs-keyglyph'>]</span> <span class='hs-comment'>-- ^ errno to catch</span>
<a name="line-292"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-varid'>a</span> <span class='hs-comment'>-- ^ action to try, which can raise an IOException</span>
<a name="line-293"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-varid'>a</span> <span class='hs-comment'>-- ^ action to carry out in case of an IOException and</span>
<a name="line-294"></a> <span class='hs-comment'>-- if errno matches</span>
<a name="line-295"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-varid'>a</span>
<a name="line-296"></a><span class='hs-definition'>catchErrno</span> <span class='hs-varid'>en</span> <span class='hs-varid'>a1</span> <span class='hs-varid'>a2</span> <span class='hs-keyglyph'>=</span>
<a name="line-297"></a> <span class='hs-varid'>catchIOError</span> <span class='hs-varid'>a1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>e</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-298"></a> <span class='hs-varid'>errno</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>getErrno</span>
<a name="line-299"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>errno</span> <span class='hs-varop'>`elem`</span> <span class='hs-varid'>en</span>
<a name="line-300"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>a2</span>
<a name="line-301"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>ioError</span> <span class='hs-varid'>e</span>
<a name="line-302"></a>
<a name="line-303"></a>
<a name="line-304"></a><a name="rethrowErrnoAs"></a><span class='hs-comment'>-- |Execute the given action and retrow IO exceptions as a new Exception</span>
<a name="line-305"></a><span class='hs-comment'>-- that have the given errno. If errno does not match the exception is rethrown</span>
<a name="line-306"></a><span class='hs-comment'>-- as is.</span>
<a name="line-307"></a><span class='hs-definition'>rethrowErrnoAs</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Exception</span> <span class='hs-varid'>e</span>
<a name="line-308"></a> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Errno</span><span class='hs-keyglyph'>]</span> <span class='hs-comment'>-- ^ errno to catch</span>
<a name="line-309"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>e</span> <span class='hs-comment'>-- ^ rethrow as if errno matches</span>
<a name="line-310"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-varid'>a</span> <span class='hs-comment'>-- ^ action to try</span>
<a name="line-311"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-varid'>a</span>
<a name="line-312"></a><span class='hs-definition'>rethrowErrnoAs</span> <span class='hs-varid'>en</span> <span class='hs-varid'>fmex</span> <span class='hs-varid'>action</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>catchErrno</span> <span class='hs-varid'>en</span> <span class='hs-varid'>action</span> <span class='hs-layout'>(</span><span class='hs-varid'>throwIO</span> <span class='hs-varid'>fmex</span><span class='hs-layout'>)</span>
<a name="line-313"></a>
<a name="line-314"></a>
<a name="line-315"></a>
<a name="line-316"></a><a name="handleIOError"></a><span class='hs-comment'>-- |Like `catchIOError`, with arguments swapped.</span>
<a name="line-317"></a><span class='hs-definition'>handleIOError</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>IOError</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-varid'>a</span>
<a name="line-318"></a><span class='hs-definition'>handleIOError</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>flip</span> <span class='hs-varid'>catchIOError</span>
<a name="line-319"></a>
<a name="line-320"></a>
<a name="line-321"></a><a name="bracketeer"></a><span class='hs-comment'>-- |Like `bracket`, but allows to have different clean-up</span>
<a name="line-322"></a><span class='hs-comment'>-- actions depending on whether the in-between computation</span>
<a name="line-323"></a><span class='hs-comment'>-- has raised an exception or not. </span>
<a name="line-324"></a><span class='hs-definition'>bracketeer</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>IO</span> <span class='hs-varid'>a</span> <span class='hs-comment'>-- ^ computation to run first</span>
<a name="line-325"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-comment'>-- ^ computation to run last, when</span>
<a name="line-326"></a> <span class='hs-comment'>-- no exception was raised</span>
<a name="line-327"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-comment'>-- ^ computation to run last,</span>
<a name="line-328"></a> <span class='hs-comment'>-- when an exception was raised</span>
<a name="line-329"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span> <span class='hs-comment'>-- ^ computation to run in-between</span>
<a name="line-330"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-varid'>c</span>
<a name="line-331"></a><span class='hs-definition'>bracketeer</span> <span class='hs-varid'>before</span> <span class='hs-varid'>after</span> <span class='hs-varid'>afterEx</span> <span class='hs-varid'>thing</span> <span class='hs-keyglyph'>=</span>
<a name="line-332"></a> <span class='hs-varid'>mask</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>restore</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-333"></a> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>before</span>
<a name="line-334"></a> <span class='hs-varid'>r</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>restore</span> <span class='hs-layout'>(</span><span class='hs-varid'>thing</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-varop'>`onException`</span> <span class='hs-varid'>afterEx</span> <span class='hs-varid'>a</span>
<a name="line-335"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>after</span> <span class='hs-varid'>a</span>
<a name="line-336"></a> <span class='hs-varid'>return</span> <span class='hs-varid'>r</span>
<a name="line-337"></a>
<a name="line-338"></a>
<a name="line-339"></a><a name="reactOnError"></a><span class='hs-definition'>reactOnError</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>IO</span> <span class='hs-varid'>a</span>
<a name="line-340"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>IOErrorType</span><span class='hs-layout'>,</span> <span class='hs-conid'>IO</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span> <span class='hs-comment'>-- ^ reaction on IO errors</span>
<a name="line-341"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>HPathIOException</span><span class='hs-layout'>,</span> <span class='hs-conid'>IO</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span> <span class='hs-comment'>-- ^ reaction on HPathIOException</span>
<a name="line-342"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-varid'>a</span>
<a name="line-343"></a><span class='hs-definition'>reactOnError</span> <span class='hs-varid'>a</span> <span class='hs-varid'>ios</span> <span class='hs-varid'>fmios</span> <span class='hs-keyglyph'>=</span>
<a name="line-344"></a> <span class='hs-varid'>a</span> <span class='hs-varop'>`catches`</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>iohandler</span><span class='hs-layout'>,</span> <span class='hs-varid'>fmiohandler</span><span class='hs-keyglyph'>]</span>
<a name="line-345"></a> <span class='hs-keyword'>where</span>
<a name="line-346"></a> <span class='hs-varid'>iohandler</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Handler</span> <span class='hs-varop'>$</span>
<a name="line-347"></a> <span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-varid'>ex</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>IOException</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-348"></a> <span class='hs-varid'>foldr</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-varid'>t</span><span class='hs-layout'>,</span> <span class='hs-varid'>a'</span><span class='hs-layout'>)</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>ioeGetErrorType</span> <span class='hs-varid'>ex</span> <span class='hs-varop'>==</span> <span class='hs-varid'>t</span>
<a name="line-349"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>a'</span>
<a name="line-350"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-351"></a> <span class='hs-layout'>(</span><span class='hs-varid'>throwIO</span> <span class='hs-varid'>ex</span><span class='hs-layout'>)</span>
<a name="line-352"></a> <span class='hs-varid'>ios</span>
<a name="line-353"></a> <span class='hs-varid'>fmiohandler</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Handler</span> <span class='hs-varop'>$</span>
<a name="line-354"></a> <span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-varid'>ex</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>HPathIOException</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-355"></a> <span class='hs-varid'>foldr</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-varid'>t</span><span class='hs-layout'>,</span> <span class='hs-varid'>a'</span><span class='hs-layout'>)</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>toConstr</span> <span class='hs-varid'>ex</span> <span class='hs-varop'>==</span> <span class='hs-varid'>toConstr</span> <span class='hs-varid'>t</span>
<a name="line-356"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>a'</span>
<a name="line-357"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-358"></a> <span class='hs-layout'>(</span><span class='hs-varid'>throwIO</span> <span class='hs-varid'>ex</span><span class='hs-layout'>)</span>
<a name="line-359"></a> <span class='hs-varid'>fmios</span>
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<pre><a name="line-1"></a><span class='hs-comment'>-- |</span>
<a name="line-2"></a><span class='hs-comment'>-- Module : HPath.IO.Utils</span>
<a name="line-3"></a><span class='hs-comment'>-- Copyright : © 2016 Julian Ospald</span>
<a name="line-4"></a><span class='hs-comment'>-- License : GPL-2</span>
<a name="line-5"></a><span class='hs-comment'>--</span>
<a name="line-6"></a><span class='hs-comment'>-- Maintainer : Julian Ospald &lt;hasufell@posteo.de&gt;</span>
<a name="line-7"></a><span class='hs-comment'>-- Stability : experimental</span>
<a name="line-8"></a><span class='hs-comment'>-- Portability : portable</span>
<a name="line-9"></a><span class='hs-comment'>--</span>
<a name="line-10"></a><span class='hs-comment'>-- Random and general IO/monad utilities.</span>
<a name="line-11"></a>
<a name="line-12"></a>
<a name="line-13"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>HPath</span><span class='hs-varop'>.</span><span class='hs-conid'>IO</span><span class='hs-varop'>.</span><span class='hs-conid'>Utils</span> <span class='hs-keyword'>where</span>
<a name="line-14"></a>
<a name="line-15"></a>
<a name="line-16"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span>
<a name="line-17"></a> <span class='hs-layout'>(</span>
<a name="line-18"></a> <span class='hs-varid'>when</span>
<a name="line-19"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>unless</span>
<a name="line-20"></a> <span class='hs-layout'>)</span>
<a name="line-21"></a>
<a name="line-22"></a>
<a name="line-23"></a><a name="whenM"></a><span class='hs-comment'>-- |If the value of the first argument is True, then execute the action</span>
<a name="line-24"></a><span class='hs-comment'>-- provided in the second argument, otherwise do nothing.</span>
<a name="line-25"></a><span class='hs-definition'>whenM</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-varid'>m</span> <span class='hs-conid'>Bool</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span>
<a name="line-26"></a><span class='hs-definition'>whenM</span> <span class='hs-varid'>mb</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mb</span> <span class='hs-varop'>&gt;&gt;=</span> <span class='hs-layout'>(</span><span class='hs-varop'>`when`</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span>
<a name="line-27"></a>
<a name="line-28"></a>
<a name="line-29"></a><a name="unlessM"></a><span class='hs-comment'>-- |If the value of the first argument is False, then execute the action</span>
<a name="line-30"></a><span class='hs-comment'>-- provided in the second argument, otherwise do nothing.</span>
<a name="line-31"></a><span class='hs-definition'>unlessM</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-varid'>m</span> <span class='hs-conid'>Bool</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span>
<a name="line-32"></a><span class='hs-definition'>unlessM</span> <span class='hs-varid'>mb</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mb</span> <span class='hs-varop'>&gt;&gt;=</span> <span class='hs-layout'>(</span><span class='hs-varop'>`unless`</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span>
</pre></body>
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<pre><a name="line-1"></a><span class='hs-comment'>-- |</span>
<a name="line-2"></a><span class='hs-comment'>-- Module : HPath.IO</span>
<a name="line-3"></a><span class='hs-comment'>-- Copyright : © 2016 Julian Ospald</span>
<a name="line-4"></a><span class='hs-comment'>-- License : GPL-2</span>
<a name="line-5"></a><span class='hs-comment'>--</span>
<a name="line-6"></a><span class='hs-comment'>-- Maintainer : Julian Ospald &lt;hasufell@posteo.de&gt;</span>
<a name="line-7"></a><span class='hs-comment'>-- Stability : experimental</span>
<a name="line-8"></a><span class='hs-comment'>-- Portability : portable</span>
<a name="line-9"></a><span class='hs-comment'>--</span>
<a name="line-10"></a><span class='hs-comment'>-- This module provides high-level IO related file operations like</span>
<a name="line-11"></a><span class='hs-comment'>-- copy, delete, move and so on. It only operates on /Path Abs/ which</span>
<a name="line-12"></a><span class='hs-comment'>-- guarantees us well-typed paths which are absolute.</span>
<a name="line-13"></a><span class='hs-comment'>--</span>
<a name="line-14"></a><span class='hs-comment'>-- Some functions are just path-safe wrappers around</span>
<a name="line-15"></a><span class='hs-comment'>-- unix functions, others have stricter exception handling</span>
<a name="line-16"></a><span class='hs-comment'>-- and some implement functionality that doesn't have a unix</span>
<a name="line-17"></a><span class='hs-comment'>-- counterpart (like `copyDirRecursive`).</span>
<a name="line-18"></a><span class='hs-comment'>--</span>
<a name="line-19"></a><span class='hs-comment'>-- Some of these operations are due to their nature __not atomic__, which</span>
<a name="line-20"></a><span class='hs-comment'>-- means they may do multiple syscalls which form one context. Some</span>
<a name="line-21"></a><span class='hs-comment'>-- of them also have to examine the filetypes explicitly before the</span>
<a name="line-22"></a><span class='hs-comment'>-- syscalls, so a reasonable decision can be made. That means</span>
<a name="line-23"></a><span class='hs-comment'>-- the result is undefined if another process changes that context</span>
<a name="line-24"></a><span class='hs-comment'>-- while the non-atomic operation is still happening. However, where</span>
<a name="line-25"></a><span class='hs-comment'>-- possible, as few syscalls as possible are used and the underlying</span>
<a name="line-26"></a><span class='hs-comment'>-- exception handling is kept.</span>
<a name="line-27"></a><span class='hs-comment'>--</span>
<a name="line-28"></a><span class='hs-comment'>-- Note: `BlockDevice`, `CharacterDevice`, `NamedPipe` and `Socket`</span>
<a name="line-29"></a><span class='hs-comment'>-- are ignored by some of the more high-level functions (like `easyCopy`).</span>
<a name="line-30"></a><span class='hs-comment'>-- For other functions (like `copyFile`), the behavior on these file types is</span>
<a name="line-31"></a><span class='hs-comment'>-- unreliable/unsafe. Check the documentation of those functions for details.</span>
<a name="line-32"></a>
<a name="line-33"></a><span class='hs-comment'>{-# LANGUAGE PackageImports #-}</span>
<a name="line-34"></a><span class='hs-comment'>{-# LANGUAGE OverloadedStrings #-}</span>
<a name="line-35"></a>
<a name="line-36"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>HPath</span><span class='hs-varop'>.</span><span class='hs-conid'>IO</span>
<a name="line-37"></a> <span class='hs-layout'>(</span>
<a name="line-38"></a> <span class='hs-comment'>-- * Types</span>
<a name="line-39"></a> <span class='hs-conid'>FileType</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-40"></a> <span class='hs-comment'>-- * File copying</span>
<a name="line-41"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>copyDirRecursive</span>
<a name="line-42"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>copyDirRecursiveOverwrite</span>
<a name="line-43"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>recreateSymlink</span>
<a name="line-44"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>copyFile</span>
<a name="line-45"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>copyFileOverwrite</span>
<a name="line-46"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>easyCopy</span>
<a name="line-47"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>easyCopyOverwrite</span>
<a name="line-48"></a> <span class='hs-comment'>-- * File deletion</span>
<a name="line-49"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>deleteFile</span>
<a name="line-50"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>deleteDir</span>
<a name="line-51"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>deleteDirRecursive</span>
<a name="line-52"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>easyDelete</span>
<a name="line-53"></a> <span class='hs-comment'>-- * File opening</span>
<a name="line-54"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>openFile</span>
<a name="line-55"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>executeFile</span>
<a name="line-56"></a> <span class='hs-comment'>-- * File creation</span>
<a name="line-57"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>createRegularFile</span>
<a name="line-58"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>createDir</span>
<a name="line-59"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>createSymlink</span>
<a name="line-60"></a> <span class='hs-comment'>-- * File renaming/moving</span>
<a name="line-61"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>renameFile</span>
<a name="line-62"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>moveFile</span>
<a name="line-63"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>moveFileOverwrite</span>
<a name="line-64"></a> <span class='hs-comment'>-- * File permissions</span>
<a name="line-65"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>newFilePerms</span>
<a name="line-66"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>newDirPerms</span>
<a name="line-67"></a> <span class='hs-comment'>-- * Directory reading</span>
<a name="line-68"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>getDirsFiles</span>
<a name="line-69"></a> <span class='hs-comment'>-- * Filetype operations</span>
<a name="line-70"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>getFileType</span>
<a name="line-71"></a> <span class='hs-comment'>-- * Others</span>
<a name="line-72"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>canonicalizePath</span>
<a name="line-73"></a> <span class='hs-layout'>)</span>
<a name="line-74"></a> <span class='hs-keyword'>where</span>
<a name="line-75"></a>
<a name="line-76"></a>
<a name="line-77"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Applicative</span>
<a name="line-78"></a> <span class='hs-layout'>(</span>
<a name="line-79"></a> <span class='hs-layout'>(</span><span class='hs-varop'>&lt;$&gt;</span><span class='hs-layout'>)</span>
<a name="line-80"></a> <span class='hs-layout'>)</span>
<a name="line-81"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Exception</span>
<a name="line-82"></a> <span class='hs-layout'>(</span>
<a name="line-83"></a> <span class='hs-varid'>bracket</span>
<a name="line-84"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>throwIO</span>
<a name="line-85"></a> <span class='hs-layout'>)</span>
<a name="line-86"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span>
<a name="line-87"></a> <span class='hs-layout'>(</span>
<a name="line-88"></a> <span class='hs-varid'>void</span>
<a name="line-89"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>when</span>
<a name="line-90"></a> <span class='hs-layout'>)</span>
<a name="line-91"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span>
<a name="line-92"></a> <span class='hs-layout'>(</span>
<a name="line-93"></a> <span class='hs-conid'>ByteString</span>
<a name="line-94"></a> <span class='hs-layout'>)</span>
<a name="line-95"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Foldable</span>
<a name="line-96"></a> <span class='hs-layout'>(</span>
<a name="line-97"></a> <span class='hs-varid'>for_</span>
<a name="line-98"></a> <span class='hs-layout'>)</span>
<a name="line-99"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Maybe</span>
<a name="line-100"></a> <span class='hs-layout'>(</span>
<a name="line-101"></a> <span class='hs-varid'>catMaybes</span>
<a name="line-102"></a> <span class='hs-layout'>)</span>
<a name="line-103"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Word</span>
<a name="line-104"></a> <span class='hs-layout'>(</span>
<a name="line-105"></a> <span class='hs-conid'>Word8</span>
<a name="line-106"></a> <span class='hs-layout'>)</span>
<a name="line-107"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Foreign</span><span class='hs-varop'>.</span><span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-conid'>Error</span>
<a name="line-108"></a> <span class='hs-layout'>(</span>
<a name="line-109"></a> <span class='hs-varid'>eEXIST</span>
<a name="line-110"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>eINVAL</span>
<a name="line-111"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>eNOSYS</span>
<a name="line-112"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>eNOTEMPTY</span>
<a name="line-113"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>eXDEV</span>
<a name="line-114"></a> <span class='hs-layout'>)</span>
<a name="line-115"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Foreign</span><span class='hs-varop'>.</span><span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-conid'>Types</span>
<a name="line-116"></a> <span class='hs-layout'>(</span>
<a name="line-117"></a> <span class='hs-conid'>CSize</span>
<a name="line-118"></a> <span class='hs-layout'>)</span>
<a name="line-119"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Foreign</span><span class='hs-varop'>.</span><span class='hs-conid'>Marshal</span><span class='hs-varop'>.</span><span class='hs-conid'>Alloc</span>
<a name="line-120"></a> <span class='hs-layout'>(</span>
<a name="line-121"></a> <span class='hs-varid'>allocaBytes</span>
<a name="line-122"></a> <span class='hs-layout'>)</span>
<a name="line-123"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Foreign</span><span class='hs-varop'>.</span><span class='hs-conid'>Ptr</span>
<a name="line-124"></a> <span class='hs-layout'>(</span>
<a name="line-125"></a> <span class='hs-conid'>Ptr</span>
<a name="line-126"></a> <span class='hs-layout'>)</span>
<a name="line-127"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>GHC</span><span class='hs-varop'>.</span><span class='hs-conid'>IO</span><span class='hs-varop'>.</span><span class='hs-conid'>Exception</span>
<a name="line-128"></a> <span class='hs-layout'>(</span>
<a name="line-129"></a> <span class='hs-conid'>IOErrorType</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-130"></a> <span class='hs-layout'>)</span>
<a name="line-131"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>HPath</span>
<a name="line-132"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>HPath</span><span class='hs-varop'>.</span><span class='hs-conid'>Internal</span>
<a name="line-133"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>HPath</span><span class='hs-varop'>.</span><span class='hs-conid'>IO</span><span class='hs-varop'>.</span><span class='hs-conid'>Errors</span>
<a name="line-134"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>HPath</span><span class='hs-varop'>.</span><span class='hs-conid'>IO</span><span class='hs-varop'>.</span><span class='hs-conid'>Utils</span>
<a name="line-135"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Prelude</span> <span class='hs-varid'>hiding</span> <span class='hs-layout'>(</span><span class='hs-varid'>readFile</span><span class='hs-layout'>)</span>
<a name="line-136"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>IO</span><span class='hs-varop'>.</span><span class='hs-conid'>Error</span>
<a name="line-137"></a> <span class='hs-layout'>(</span>
<a name="line-138"></a> <span class='hs-varid'>catchIOError</span>
<a name="line-139"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>ioeGetErrorType</span>
<a name="line-140"></a> <span class='hs-layout'>)</span>
<a name="line-141"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Linux</span><span class='hs-varop'>.</span><span class='hs-conid'>Sendfile</span>
<a name="line-142"></a> <span class='hs-layout'>(</span>
<a name="line-143"></a> <span class='hs-varid'>sendfileFd</span>
<a name="line-144"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>FileRange</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-145"></a> <span class='hs-layout'>)</span>
<a name="line-146"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span>
<a name="line-147"></a> <span class='hs-layout'>(</span>
<a name="line-148"></a> <span class='hs-varid'>exclusive</span>
<a name="line-149"></a> <span class='hs-layout'>)</span>
<a name="line-150"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>Directory</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span>
<a name="line-151"></a> <span class='hs-layout'>(</span>
<a name="line-152"></a> <span class='hs-varid'>createDirectory</span>
<a name="line-153"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>removeDirectory</span>
<a name="line-154"></a> <span class='hs-layout'>)</span>
<a name="line-155"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>Directory</span><span class='hs-varop'>.</span><span class='hs-conid'>Traversals</span>
<a name="line-156"></a> <span class='hs-layout'>(</span>
<a name="line-157"></a> <span class='hs-varid'>getDirectoryContents'</span>
<a name="line-158"></a> <span class='hs-layout'>)</span>
<a name="line-159"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>Files</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span>
<a name="line-160"></a> <span class='hs-layout'>(</span>
<a name="line-161"></a> <span class='hs-varid'>createSymbolicLink</span>
<a name="line-162"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>fileMode</span>
<a name="line-163"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>getFdStatus</span>
<a name="line-164"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>groupExecuteMode</span>
<a name="line-165"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>groupReadMode</span>
<a name="line-166"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>groupWriteMode</span>
<a name="line-167"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>otherExecuteMode</span>
<a name="line-168"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>otherReadMode</span>
<a name="line-169"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>otherWriteMode</span>
<a name="line-170"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>ownerModes</span>
<a name="line-171"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>ownerReadMode</span>
<a name="line-172"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>ownerWriteMode</span>
<a name="line-173"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>readSymbolicLink</span>
<a name="line-174"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>removeLink</span>
<a name="line-175"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>rename</span>
<a name="line-176"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>setFileMode</span>
<a name="line-177"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>unionFileModes</span>
<a name="line-178"></a> <span class='hs-layout'>)</span>
<a name="line-179"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>Files</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>PF</span>
<a name="line-180"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-str'>"unix"</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>IO</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>SPI</span>
<a name="line-181"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-str'>"unix-bytestring"</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>IO</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>SPB</span>
<a name="line-182"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>FD</span>
<a name="line-183"></a> <span class='hs-layout'>(</span>
<a name="line-184"></a> <span class='hs-varid'>openFd</span>
<a name="line-185"></a> <span class='hs-layout'>)</span>
<a name="line-186"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>Directory</span><span class='hs-varop'>.</span><span class='hs-conid'>Traversals</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>SPDT</span>
<a name="line-187"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>Directory</span><span class='hs-varop'>.</span><span class='hs-conid'>Foreign</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>SPDF</span>
<a name="line-188"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>Process</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>SPP</span>
<a name="line-189"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>Types</span>
<a name="line-190"></a> <span class='hs-layout'>(</span>
<a name="line-191"></a> <span class='hs-conid'>FileMode</span>
<a name="line-192"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>ProcessID</span>
<a name="line-193"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Fd</span>
<a name="line-194"></a> <span class='hs-layout'>)</span>
<a name="line-195"></a>
<a name="line-196"></a>
<a name="line-197"></a>
<a name="line-198"></a>
<a name="line-199"></a>
<a name="line-200"></a> <span class='hs-comment'>-------------</span>
<a name="line-201"></a> <span class='hs-comment'>--[ Types ]--</span>
<a name="line-202"></a> <span class='hs-comment'>-------------</span>
<a name="line-203"></a>
<a name="line-204"></a>
<a name="line-205"></a><a name="FileType"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>FileType</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Directory</span>
<a name="line-206"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>RegularFile</span>
<a name="line-207"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>SymbolicLink</span>
<a name="line-208"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>BlockDevice</span>
<a name="line-209"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>CharacterDevice</span>
<a name="line-210"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>NamedPipe</span>
<a name="line-211"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Socket</span>
<a name="line-212"></a> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Eq</span><span class='hs-layout'>,</span> <span class='hs-conid'>Show</span><span class='hs-layout'>)</span>
<a name="line-213"></a>
<a name="line-214"></a>
<a name="line-215"></a>
<a name="line-216"></a>
<a name="line-217"></a>
<a name="line-218"></a> <span class='hs-comment'>--------------------</span>
<a name="line-219"></a> <span class='hs-comment'>--[ File Copying ]--</span>
<a name="line-220"></a> <span class='hs-comment'>--------------------</span>
<a name="line-221"></a>
<a name="line-222"></a>
<a name="line-223"></a>
<a name="line-224"></a><a name="copyDirRecursive"></a><span class='hs-comment'>-- |Copies a directory recursively to the given destination.</span>
<a name="line-225"></a><span class='hs-comment'>-- Does not follow symbolic links.</span>
<a name="line-226"></a><span class='hs-comment'>--</span>
<a name="line-227"></a><span class='hs-comment'>-- For directory contents, this has the same behavior as `easyCopy`</span>
<a name="line-228"></a><span class='hs-comment'>-- and thus will ignore any file type that is not `RegularFile`,</span>
<a name="line-229"></a><span class='hs-comment'>-- `SymbolicLink` or `Directory`.</span>
<a name="line-230"></a><span class='hs-comment'>--</span>
<a name="line-231"></a><span class='hs-comment'>-- Safety/reliability concerns:</span>
<a name="line-232"></a><span class='hs-comment'>--</span>
<a name="line-233"></a><span class='hs-comment'>-- * not atomic</span>
<a name="line-234"></a><span class='hs-comment'>-- * examines filetypes explicitly</span>
<a name="line-235"></a><span class='hs-comment'>-- * an explicit check `throwDestinationInSource` is carried out for the</span>
<a name="line-236"></a><span class='hs-comment'>-- top directory for basic sanity, because otherwise we might end up</span>
<a name="line-237"></a><span class='hs-comment'>-- with an infinite copy loop... however, this operation is not</span>
<a name="line-238"></a><span class='hs-comment'>-- carried out recursively (because it's slow)</span>
<a name="line-239"></a><span class='hs-comment'>--</span>
<a name="line-240"></a><span class='hs-comment'>-- Throws:</span>
<a name="line-241"></a><span class='hs-comment'>--</span>
<a name="line-242"></a><span class='hs-comment'>-- - `NoSuchThing` if source directory does not exist</span>
<a name="line-243"></a><span class='hs-comment'>-- - `PermissionDenied` if output directory is not writable</span>
<a name="line-244"></a><span class='hs-comment'>-- - `PermissionDenied` if source directory can't be opened</span>
<a name="line-245"></a><span class='hs-comment'>-- - `InvalidArgument` if source directory is wrong type (symlink)</span>
<a name="line-246"></a><span class='hs-comment'>-- - `InvalidArgument` if source directory is wrong type (regular file)</span>
<a name="line-247"></a><span class='hs-comment'>-- - `AlreadyExists` if destination already exists</span>
<a name="line-248"></a><span class='hs-comment'>-- - `SameFile` if source and destination are the same file (`HPathIOException`)</span>
<a name="line-249"></a><span class='hs-comment'>-- - `DestinationInSource` if destination is contained in source (`HPathIOException`)</span>
<a name="line-250"></a><span class='hs-definition'>copyDirRecursive</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-comment'>-- ^ source dir</span>
<a name="line-251"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-comment'>-- ^ full destination</span>
<a name="line-252"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-253"></a><span class='hs-definition'>copyDirRecursive</span> <span class='hs-varid'>fromp</span> <span class='hs-varid'>destdirp</span>
<a name="line-254"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-255"></a> <span class='hs-comment'>-- for performance, sanity checks are only done for the top dir</span>
<a name="line-256"></a> <span class='hs-varid'>throwSameFile</span> <span class='hs-varid'>fromp</span> <span class='hs-varid'>destdirp</span>
<a name="line-257"></a> <span class='hs-varid'>throwDestinationInSource</span> <span class='hs-varid'>fromp</span> <span class='hs-varid'>destdirp</span>
<a name="line-258"></a> <span class='hs-varid'>go</span> <span class='hs-varid'>fromp</span> <span class='hs-varid'>destdirp</span>
<a name="line-259"></a> <span class='hs-keyword'>where</span>
<a name="line-260"></a> <span class='hs-varid'>go</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-261"></a> <span class='hs-varid'>go</span> <span class='hs-varid'>fromp'</span> <span class='hs-varid'>destdirp'</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-262"></a> <span class='hs-comment'>-- order is important here, so we don't get empty directories</span>
<a name="line-263"></a> <span class='hs-comment'>-- on failure</span>
<a name="line-264"></a> <span class='hs-varid'>contents</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>getDirsFiles</span> <span class='hs-varid'>fromp'</span>
<a name="line-265"></a>
<a name="line-266"></a> <span class='hs-varid'>fmode'</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>PF</span><span class='hs-varop'>.</span><span class='hs-varid'>fileMode</span> <span class='hs-varop'>&lt;$&gt;</span> <span class='hs-conid'>PF</span><span class='hs-varop'>.</span><span class='hs-varid'>getSymbolicLinkStatus</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromAbs</span> <span class='hs-varid'>fromp'</span><span class='hs-layout'>)</span>
<a name="line-267"></a> <span class='hs-varid'>createDirectory</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromAbs</span> <span class='hs-varid'>destdirp'</span><span class='hs-layout'>)</span> <span class='hs-varid'>fmode'</span>
<a name="line-268"></a>
<a name="line-269"></a> <span class='hs-comment'>-- we can't use `easyCopy` here, because we want to call `go`</span>
<a name="line-270"></a> <span class='hs-comment'>-- recursively to skip the top-level sanity checks</span>
<a name="line-271"></a> <span class='hs-varid'>for_</span> <span class='hs-varid'>contents</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>f</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-272"></a> <span class='hs-varid'>ftype</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>getFileType</span> <span class='hs-varid'>f</span>
<a name="line-273"></a> <span class='hs-varid'>newdest</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-layout'>(</span><span class='hs-varid'>destdirp'</span> <span class='hs-varop'>&lt;/&gt;</span><span class='hs-layout'>)</span> <span class='hs-varop'>&lt;$&gt;</span> <span class='hs-varid'>basename</span> <span class='hs-varid'>f</span>
<a name="line-274"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>ftype</span> <span class='hs-keyword'>of</span>
<a name="line-275"></a> <span class='hs-conid'>SymbolicLink</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>recreateSymlink</span> <span class='hs-varid'>f</span> <span class='hs-varid'>newdest</span>
<a name="line-276"></a> <span class='hs-conid'>Directory</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>go</span> <span class='hs-varid'>f</span> <span class='hs-varid'>newdest</span>
<a name="line-277"></a> <span class='hs-conid'>RegularFile</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>copyFile</span> <span class='hs-varid'>f</span> <span class='hs-varid'>newdest</span>
<a name="line-278"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-279"></a>
<a name="line-280"></a>
<a name="line-281"></a><a name="copyDirRecursiveOverwrite"></a><span class='hs-comment'>-- |Like `copyDirRecursive` except it overwrites contents of directories</span>
<a name="line-282"></a><span class='hs-comment'>-- if any.</span>
<a name="line-283"></a><span class='hs-comment'>--</span>
<a name="line-284"></a><span class='hs-comment'>-- For directory contents, this has the same behavior as `easyCopyOverwrite`</span>
<a name="line-285"></a><span class='hs-comment'>-- and thus will ignore any file type that is not `RegularFile`,</span>
<a name="line-286"></a><span class='hs-comment'>-- `SymbolicLink` or `Directory`.</span>
<a name="line-287"></a><span class='hs-comment'>--</span>
<a name="line-288"></a><span class='hs-comment'>-- Throws:</span>
<a name="line-289"></a><span class='hs-comment'>--</span>
<a name="line-290"></a><span class='hs-comment'>-- - `NoSuchThing` if source directory does not exist</span>
<a name="line-291"></a><span class='hs-comment'>-- - `PermissionDenied` if output directory is not writable</span>
<a name="line-292"></a><span class='hs-comment'>-- - `PermissionDenied` if source directory can't be opened</span>
<a name="line-293"></a><span class='hs-comment'>-- - `InvalidArgument` if source directory is wrong type (symlink)</span>
<a name="line-294"></a><span class='hs-comment'>-- - `InvalidArgument` if source directory is wrong type (regular file)</span>
<a name="line-295"></a><span class='hs-comment'>-- - `SameFile` if source and destination are the same file (`HPathIOException`)</span>
<a name="line-296"></a><span class='hs-comment'>-- - `DestinationInSource` if destination is contained in source (`HPathIOException`)</span>
<a name="line-297"></a><span class='hs-definition'>copyDirRecursiveOverwrite</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-comment'>-- ^ source dir</span>
<a name="line-298"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-comment'>-- ^ full destination</span>
<a name="line-299"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-300"></a><span class='hs-definition'>copyDirRecursiveOverwrite</span> <span class='hs-varid'>fromp</span> <span class='hs-varid'>destdirp</span>
<a name="line-301"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-302"></a> <span class='hs-comment'>-- for performance, sanity checks are only done for the top dir</span>
<a name="line-303"></a> <span class='hs-varid'>throwSameFile</span> <span class='hs-varid'>fromp</span> <span class='hs-varid'>destdirp</span>
<a name="line-304"></a> <span class='hs-varid'>throwDestinationInSource</span> <span class='hs-varid'>fromp</span> <span class='hs-varid'>destdirp</span>
<a name="line-305"></a> <span class='hs-varid'>go</span> <span class='hs-varid'>fromp</span> <span class='hs-varid'>destdirp</span>
<a name="line-306"></a> <span class='hs-keyword'>where</span>
<a name="line-307"></a> <span class='hs-varid'>go</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-308"></a> <span class='hs-varid'>go</span> <span class='hs-varid'>fromp'</span> <span class='hs-varid'>destdirp'</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-309"></a> <span class='hs-comment'>-- order is important here, so we don't get empty directories</span>
<a name="line-310"></a> <span class='hs-comment'>-- on failure</span>
<a name="line-311"></a> <span class='hs-varid'>contents</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>getDirsFiles</span> <span class='hs-varid'>fromp'</span>
<a name="line-312"></a>
<a name="line-313"></a> <span class='hs-varid'>fmode'</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>PF</span><span class='hs-varop'>.</span><span class='hs-varid'>fileMode</span> <span class='hs-varop'>&lt;$&gt;</span> <span class='hs-conid'>PF</span><span class='hs-varop'>.</span><span class='hs-varid'>getSymbolicLinkStatus</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromAbs</span> <span class='hs-varid'>fromp'</span><span class='hs-layout'>)</span>
<a name="line-314"></a> <span class='hs-varid'>catchIOError</span> <span class='hs-layout'>(</span><span class='hs-varid'>createDirectory</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromAbs</span> <span class='hs-varid'>destdirp'</span><span class='hs-layout'>)</span> <span class='hs-varid'>fmode'</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>e</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-315"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>ioeGetErrorType</span> <span class='hs-varid'>e</span> <span class='hs-keyword'>of</span>
<a name="line-316"></a> <span class='hs-conid'>AlreadyExists</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>setFileMode</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromAbs</span> <span class='hs-varid'>destdirp'</span><span class='hs-layout'>)</span> <span class='hs-varid'>fmode'</span>
<a name="line-317"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>ioError</span> <span class='hs-varid'>e</span>
<a name="line-318"></a>
<a name="line-319"></a> <span class='hs-comment'>-- we can't use `easyCopyOverwrite` here, because we want to call `go`</span>
<a name="line-320"></a> <span class='hs-comment'>-- recursively to skip the top-level sanity checks</span>
<a name="line-321"></a> <span class='hs-varid'>for_</span> <span class='hs-varid'>contents</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>f</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-322"></a> <span class='hs-varid'>ftype</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>getFileType</span> <span class='hs-varid'>f</span>
<a name="line-323"></a> <span class='hs-varid'>newdest</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-layout'>(</span><span class='hs-varid'>destdirp'</span> <span class='hs-varop'>&lt;/&gt;</span><span class='hs-layout'>)</span> <span class='hs-varop'>&lt;$&gt;</span> <span class='hs-varid'>basename</span> <span class='hs-varid'>f</span>
<a name="line-324"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>ftype</span> <span class='hs-keyword'>of</span>
<a name="line-325"></a> <span class='hs-conid'>SymbolicLink</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>whenM</span> <span class='hs-layout'>(</span><span class='hs-varid'>doesFileExist</span> <span class='hs-varid'>newdest</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>deleteFile</span> <span class='hs-varid'>newdest</span><span class='hs-layout'>)</span>
<a name="line-326"></a> <span class='hs-varop'>&gt;&gt;</span> <span class='hs-varid'>recreateSymlink</span> <span class='hs-varid'>f</span> <span class='hs-varid'>newdest</span>
<a name="line-327"></a> <span class='hs-conid'>Directory</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>go</span> <span class='hs-varid'>f</span> <span class='hs-varid'>newdest</span>
<a name="line-328"></a> <span class='hs-conid'>RegularFile</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>copyFileOverwrite</span> <span class='hs-varid'>f</span> <span class='hs-varid'>newdest</span>
<a name="line-329"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-330"></a>
<a name="line-331"></a>
<a name="line-332"></a><a name="recreateSymlink"></a><span class='hs-comment'>-- |Recreate a symlink.</span>
<a name="line-333"></a><span class='hs-comment'>--</span>
<a name="line-334"></a><span class='hs-comment'>-- Throws:</span>
<a name="line-335"></a><span class='hs-comment'>--</span>
<a name="line-336"></a><span class='hs-comment'>-- - `InvalidArgument` if source file is wrong type (not a symlink)</span>
<a name="line-337"></a><span class='hs-comment'>-- - `PermissionDenied` if output directory cannot be written to</span>
<a name="line-338"></a><span class='hs-comment'>-- - `PermissionDenied` if source directory cannot be opened</span>
<a name="line-339"></a><span class='hs-comment'>-- - `AlreadyExists` if destination file already exists</span>
<a name="line-340"></a><span class='hs-comment'>-- - `SameFile` if source and destination are the same file (`HPathIOException`)</span>
<a name="line-341"></a><span class='hs-comment'>--</span>
<a name="line-342"></a><span class='hs-comment'>-- Note: calls `symlink`</span>
<a name="line-343"></a><span class='hs-definition'>recreateSymlink</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-comment'>-- ^ the old symlink file</span>
<a name="line-344"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-comment'>-- ^ destination file</span>
<a name="line-345"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-346"></a><span class='hs-definition'>recreateSymlink</span> <span class='hs-varid'>symsource</span> <span class='hs-varid'>newsym</span>
<a name="line-347"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-348"></a> <span class='hs-varid'>throwSameFile</span> <span class='hs-varid'>symsource</span> <span class='hs-varid'>newsym</span>
<a name="line-349"></a> <span class='hs-varid'>sympoint</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>readSymbolicLink</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromAbs</span> <span class='hs-varid'>symsource</span><span class='hs-layout'>)</span>
<a name="line-350"></a> <span class='hs-varid'>createSymbolicLink</span> <span class='hs-varid'>sympoint</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromAbs</span> <span class='hs-varid'>newsym</span><span class='hs-layout'>)</span>
<a name="line-351"></a>
<a name="line-352"></a>
<a name="line-353"></a><a name="copyFile"></a><span class='hs-comment'>-- |Copies the given regular file to the given destination.</span>
<a name="line-354"></a><span class='hs-comment'>-- Neither follows symbolic links, nor accepts them.</span>
<a name="line-355"></a><span class='hs-comment'>-- For "copying" symbolic links, use `recreateSymlink` instead.</span>
<a name="line-356"></a><span class='hs-comment'>--</span>
<a name="line-357"></a><span class='hs-comment'>-- Note that this is still sort of a low-level function and doesn't</span>
<a name="line-358"></a><span class='hs-comment'>-- examine file types. For a more high-level version, use `easyCopy`</span>
<a name="line-359"></a><span class='hs-comment'>-- instead.</span>
<a name="line-360"></a><span class='hs-comment'>--</span>
<a name="line-361"></a><span class='hs-comment'>-- Safety/reliability concerns:</span>
<a name="line-362"></a><span class='hs-comment'>--</span>
<a name="line-363"></a><span class='hs-comment'>-- * when used on `CharacterDevice`, reads the "contents" and copies</span>
<a name="line-364"></a><span class='hs-comment'>-- them to a regular file, which might take indefinitely</span>
<a name="line-365"></a><span class='hs-comment'>-- * when used on `BlockDevice`, may either read the "contents"</span>
<a name="line-366"></a><span class='hs-comment'>-- and copy them to a regular file (potentially hanging indefinitely)</span>
<a name="line-367"></a><span class='hs-comment'>-- or may create a regular empty destination file</span>
<a name="line-368"></a><span class='hs-comment'>-- * when used on `NamedPipe`, will hang indefinitely</span>
<a name="line-369"></a><span class='hs-comment'>--</span>
<a name="line-370"></a><span class='hs-comment'>-- Throws:</span>
<a name="line-371"></a><span class='hs-comment'>--</span>
<a name="line-372"></a><span class='hs-comment'>-- - `NoSuchThing` if source file does not exist</span>
<a name="line-373"></a><span class='hs-comment'>-- - `NoSuchThing` if source file is a a `Socket`</span>
<a name="line-374"></a><span class='hs-comment'>-- - `PermissionDenied` if output directory is not writable</span>
<a name="line-375"></a><span class='hs-comment'>-- - `PermissionDenied` if source directory can't be opened</span>
<a name="line-376"></a><span class='hs-comment'>-- - `InvalidArgument` if source file is wrong type (symlink or directory)</span>
<a name="line-377"></a><span class='hs-comment'>-- - `AlreadyExists` if destination already exists</span>
<a name="line-378"></a><span class='hs-comment'>-- - `SameFile` if source and destination are the same file (`HPathIOException`)</span>
<a name="line-379"></a><span class='hs-comment'>--</span>
<a name="line-380"></a><span class='hs-comment'>-- Note: calls `sendfile` and possibly `read`/`write` as fallback</span>
<a name="line-381"></a><span class='hs-definition'>copyFile</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-comment'>-- ^ source file</span>
<a name="line-382"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-comment'>-- ^ destination file</span>
<a name="line-383"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-384"></a><span class='hs-definition'>copyFile</span> <span class='hs-varid'>from</span> <span class='hs-varid'>to</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-385"></a> <span class='hs-varid'>throwSameFile</span> <span class='hs-varid'>from</span> <span class='hs-varid'>to</span>
<a name="line-386"></a> <span class='hs-sel'>_copyFile</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>SPDF</span><span class='hs-varop'>.</span><span class='hs-varid'>oNofollow</span><span class='hs-keyglyph'>]</span>
<a name="line-387"></a> <span class='hs-keyglyph'>[</span><span class='hs-conid'>SPDF</span><span class='hs-varop'>.</span><span class='hs-varid'>oNofollow</span><span class='hs-layout'>,</span> <span class='hs-conid'>SPDF</span><span class='hs-varop'>.</span><span class='hs-varid'>oExcl</span><span class='hs-keyglyph'>]</span>
<a name="line-388"></a> <span class='hs-varid'>from</span> <span class='hs-varid'>to</span>
<a name="line-389"></a>
<a name="line-390"></a>
<a name="line-391"></a><a name="copyFileOverwrite"></a><span class='hs-comment'>-- |Like `copyFile` except it overwrites the destination if it already</span>
<a name="line-392"></a><span class='hs-comment'>-- exists.</span>
<a name="line-393"></a><span class='hs-comment'>--</span>
<a name="line-394"></a><span class='hs-comment'>-- Safety/reliability concerns:</span>
<a name="line-395"></a><span class='hs-comment'>--</span>
<a name="line-396"></a><span class='hs-comment'>-- * when used on `CharacterDevice`, reads the "contents" and copies</span>
<a name="line-397"></a><span class='hs-comment'>-- them to a regular file, which might take indefinitely</span>
<a name="line-398"></a><span class='hs-comment'>-- * when used on `BlockDevice`, may either read the "contents"</span>
<a name="line-399"></a><span class='hs-comment'>-- and copy them to a regular file (potentially hanging indefinitely)</span>
<a name="line-400"></a><span class='hs-comment'>-- or may create a regular empty destination file</span>
<a name="line-401"></a><span class='hs-comment'>-- * when used on `NamedPipe`, will hang indefinitely</span>
<a name="line-402"></a><span class='hs-comment'>-- * not atomic, since it uses read/write</span>
<a name="line-403"></a><span class='hs-comment'>--</span>
<a name="line-404"></a><span class='hs-comment'>-- Throws:</span>
<a name="line-405"></a><span class='hs-comment'>--</span>
<a name="line-406"></a><span class='hs-comment'>-- - `NoSuchThing` if source file does not exist</span>
<a name="line-407"></a><span class='hs-comment'>-- - `NoSuchThing` if source file is a `Socket`</span>
<a name="line-408"></a><span class='hs-comment'>-- - `PermissionDenied` if output directory is not writable</span>
<a name="line-409"></a><span class='hs-comment'>-- - `PermissionDenied` if source directory can't be opened</span>
<a name="line-410"></a><span class='hs-comment'>-- - `InvalidArgument` if source file is wrong type (symlink or directory)</span>
<a name="line-411"></a><span class='hs-comment'>-- - `SameFile` if source and destination are the same file (`HPathIOException`)</span>
<a name="line-412"></a><span class='hs-comment'>--</span>
<a name="line-413"></a><span class='hs-comment'>-- Note: calls `sendfile` and possibly `read`/`write` as fallback</span>
<a name="line-414"></a><span class='hs-definition'>copyFileOverwrite</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-comment'>-- ^ source file</span>
<a name="line-415"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-comment'>-- ^ destination file</span>
<a name="line-416"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-417"></a><span class='hs-definition'>copyFileOverwrite</span> <span class='hs-varid'>from</span> <span class='hs-varid'>to</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-418"></a> <span class='hs-varid'>throwSameFile</span> <span class='hs-varid'>from</span> <span class='hs-varid'>to</span>
<a name="line-419"></a> <span class='hs-varid'>catchIOError</span> <span class='hs-layout'>(</span><span class='hs-sel'>_copyFile</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>SPDF</span><span class='hs-varop'>.</span><span class='hs-varid'>oNofollow</span><span class='hs-keyglyph'>]</span>
<a name="line-420"></a> <span class='hs-keyglyph'>[</span><span class='hs-conid'>SPDF</span><span class='hs-varop'>.</span><span class='hs-varid'>oNofollow</span><span class='hs-layout'>,</span> <span class='hs-conid'>SPDF</span><span class='hs-varop'>.</span><span class='hs-varid'>oTrunc</span><span class='hs-keyglyph'>]</span>
<a name="line-421"></a> <span class='hs-varid'>from</span> <span class='hs-varid'>to</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>e</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-422"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>ioeGetErrorType</span> <span class='hs-varid'>e</span> <span class='hs-keyword'>of</span>
<a name="line-423"></a> <span class='hs-comment'>-- if the destination file is not writable, we need to</span>
<a name="line-424"></a> <span class='hs-comment'>-- figure out if we can still copy by deleting it first</span>
<a name="line-425"></a> <span class='hs-conid'>PermissionDenied</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-426"></a> <span class='hs-varid'>exists</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>doesFileExist</span> <span class='hs-varid'>to</span>
<a name="line-427"></a> <span class='hs-varid'>writable</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>isWritable</span> <span class='hs-layout'>(</span><span class='hs-varid'>dirname</span> <span class='hs-varid'>to</span><span class='hs-layout'>)</span>
<a name="line-428"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>exists</span> <span class='hs-varop'>&amp;&amp;</span> <span class='hs-varid'>writable</span>
<a name="line-429"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>deleteFile</span> <span class='hs-varid'>to</span> <span class='hs-varop'>&gt;&gt;</span> <span class='hs-varid'>copyFile</span> <span class='hs-varid'>from</span> <span class='hs-varid'>to</span>
<a name="line-430"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>ioError</span> <span class='hs-varid'>e</span>
<a name="line-431"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>ioError</span> <span class='hs-varid'>e</span>
<a name="line-432"></a>
<a name="line-433"></a>
<a name="line-434"></a><span class='hs-sel'>_copyFile</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>SPDF</span><span class='hs-varop'>.</span><span class='hs-conid'>Flags</span><span class='hs-keyglyph'>]</span>
<a name="line-435"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>SPDF</span><span class='hs-varop'>.</span><span class='hs-conid'>Flags</span><span class='hs-keyglyph'>]</span>
<a name="line-436"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-comment'>-- ^ source file</span>
<a name="line-437"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-comment'>-- ^ destination file</span>
<a name="line-438"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-439"></a><span class='hs-sel'>_copyFile</span> <span class='hs-varid'>sflags</span> <span class='hs-varid'>dflags</span> <span class='hs-varid'>from</span> <span class='hs-varid'>to</span>
<a name="line-440"></a> <span class='hs-keyglyph'>=</span>
<a name="line-441"></a> <span class='hs-comment'>-- from sendfile(2) manpage:</span>
<a name="line-442"></a> <span class='hs-comment'>-- Applications may wish to fall back to read(2)/write(2) in the case</span>
<a name="line-443"></a> <span class='hs-comment'>-- where sendfile() fails with EINVAL or ENOSYS.</span>
<a name="line-444"></a> <span class='hs-varid'>withAbsPath</span> <span class='hs-varid'>to</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>to'</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>withAbsPath</span> <span class='hs-varid'>from</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>from'</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-445"></a> <span class='hs-varid'>catchErrno</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>eINVAL</span><span class='hs-layout'>,</span> <span class='hs-varid'>eNOSYS</span><span class='hs-keyglyph'>]</span>
<a name="line-446"></a> <span class='hs-layout'>(</span><span class='hs-varid'>sendFileCopy</span> <span class='hs-varid'>from'</span> <span class='hs-varid'>to'</span><span class='hs-layout'>)</span>
<a name="line-447"></a> <span class='hs-layout'>(</span><span class='hs-varid'>void</span> <span class='hs-varop'>$</span> <span class='hs-varid'>readWriteCopy</span> <span class='hs-varid'>from'</span> <span class='hs-varid'>to'</span><span class='hs-layout'>)</span>
<a name="line-448"></a> <span class='hs-keyword'>where</span>
<a name="line-449"></a> <span class='hs-varid'>copyWith</span> <span class='hs-varid'>copyAction</span> <span class='hs-varid'>source</span> <span class='hs-varid'>dest</span> <span class='hs-keyglyph'>=</span>
<a name="line-450"></a> <span class='hs-varid'>bracket</span> <span class='hs-layout'>(</span><span class='hs-varid'>openFd</span> <span class='hs-varid'>source</span> <span class='hs-conid'>SPI</span><span class='hs-varop'>.</span><span class='hs-conid'>ReadOnly</span> <span class='hs-varid'>sflags</span> <span class='hs-conid'>Nothing</span><span class='hs-layout'>)</span>
<a name="line-451"></a> <span class='hs-conid'>SPI</span><span class='hs-varop'>.</span><span class='hs-varid'>closeFd</span>
<a name="line-452"></a> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>sfd</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-453"></a> <span class='hs-varid'>fileM</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>Files</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-varop'>.</span><span class='hs-varid'>fileMode</span>
<a name="line-454"></a> <span class='hs-varop'>&lt;$&gt;</span> <span class='hs-varid'>getFdStatus</span> <span class='hs-varid'>sfd</span>
<a name="line-455"></a> <span class='hs-varid'>bracketeer</span> <span class='hs-layout'>(</span><span class='hs-varid'>openFd</span> <span class='hs-varid'>dest</span> <span class='hs-conid'>SPI</span><span class='hs-varop'>.</span><span class='hs-conid'>WriteOnly</span>
<a name="line-456"></a> <span class='hs-varid'>dflags</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>fileM</span><span class='hs-layout'>)</span>
<a name="line-457"></a> <span class='hs-conid'>SPI</span><span class='hs-varop'>.</span><span class='hs-varid'>closeFd</span>
<a name="line-458"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>fd</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>SPI</span><span class='hs-varop'>.</span><span class='hs-varid'>closeFd</span> <span class='hs-varid'>fd</span> <span class='hs-varop'>&gt;&gt;</span> <span class='hs-varid'>deleteFile</span> <span class='hs-varid'>to</span><span class='hs-layout'>)</span>
<a name="line-459"></a> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>dfd</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>copyAction</span> <span class='hs-varid'>sfd</span> <span class='hs-varid'>dfd</span>
<a name="line-460"></a> <span class='hs-comment'>-- this is low-level stuff utilizing sendfile(2) for speed</span>
<a name="line-461"></a> <span class='hs-varid'>sendFileCopy</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-462"></a> <span class='hs-varid'>sendFileCopy</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>copyWith</span>
<a name="line-463"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>sfd</span> <span class='hs-varid'>dfd</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>sendfileFd</span> <span class='hs-varid'>dfd</span> <span class='hs-varid'>sfd</span> <span class='hs-conid'>EntireFile</span> <span class='hs-varop'>$</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span>
<a name="line-464"></a> <span class='hs-comment'>-- low-level copy operation utilizing read(2)/write(2)</span>
<a name="line-465"></a> <span class='hs-comment'>-- in case `sendFileCopy` fails/is unsupported</span>
<a name="line-466"></a> <span class='hs-varid'>readWriteCopy</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Int</span>
<a name="line-467"></a> <span class='hs-varid'>readWriteCopy</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>copyWith</span>
<a name="line-468"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>sfd</span> <span class='hs-varid'>dfd</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>allocaBytes</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>bufSize</span><span class='hs-layout'>)</span>
<a name="line-469"></a> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>buf</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>write'</span> <span class='hs-varid'>sfd</span> <span class='hs-varid'>dfd</span> <span class='hs-varid'>buf</span> <span class='hs-num'>0</span><span class='hs-layout'>)</span>
<a name="line-470"></a> <span class='hs-keyword'>where</span>
<a name="line-471"></a> <span class='hs-varid'>bufSize</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>CSize</span>
<a name="line-472"></a> <span class='hs-varid'>bufSize</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>8192</span>
<a name="line-473"></a> <span class='hs-varid'>write'</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Fd</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Fd</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Ptr</span> <span class='hs-conid'>Word8</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Int</span>
<a name="line-474"></a> <span class='hs-varid'>write'</span> <span class='hs-varid'>sfd</span> <span class='hs-varid'>dfd</span> <span class='hs-varid'>buf</span> <span class='hs-varid'>totalsize</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-475"></a> <span class='hs-varid'>size</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>SPB</span><span class='hs-varop'>.</span><span class='hs-varid'>fdReadBuf</span> <span class='hs-varid'>sfd</span> <span class='hs-varid'>buf</span> <span class='hs-varid'>bufSize</span>
<a name="line-476"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>size</span> <span class='hs-varop'>==</span> <span class='hs-num'>0</span>
<a name="line-477"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>totalsize</span>
<a name="line-478"></a> <span class='hs-keyword'>else</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>rsize</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>SPB</span><span class='hs-varop'>.</span><span class='hs-varid'>fdWriteBuf</span> <span class='hs-varid'>dfd</span> <span class='hs-varid'>buf</span> <span class='hs-varid'>size</span>
<a name="line-479"></a> <span class='hs-varid'>when</span> <span class='hs-layout'>(</span><span class='hs-varid'>rsize</span> <span class='hs-varop'>/=</span> <span class='hs-varid'>size</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>throwIO</span> <span class='hs-varop'>.</span> <span class='hs-conid'>CopyFailed</span> <span class='hs-varop'>$</span> <span class='hs-str'>"wrong size!"</span><span class='hs-layout'>)</span>
<a name="line-480"></a> <span class='hs-varid'>write'</span> <span class='hs-varid'>sfd</span> <span class='hs-varid'>dfd</span> <span class='hs-varid'>buf</span> <span class='hs-layout'>(</span><span class='hs-varid'>totalsize</span> <span class='hs-varop'>+</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>size</span><span class='hs-layout'>)</span>
<a name="line-481"></a>
<a name="line-482"></a>
<a name="line-483"></a><a name="easyCopy"></a><span class='hs-comment'>-- |Copies a regular file, directory or symbolic link. In case of a</span>
<a name="line-484"></a><span class='hs-comment'>-- symbolic link it is just recreated, even if it points to a directory.</span>
<a name="line-485"></a><span class='hs-comment'>-- Any other file type is ignored.</span>
<a name="line-486"></a><span class='hs-comment'>--</span>
<a name="line-487"></a><span class='hs-comment'>-- Safety/reliability concerns:</span>
<a name="line-488"></a><span class='hs-comment'>--</span>
<a name="line-489"></a><span class='hs-comment'>-- * examines filetypes explicitly</span>
<a name="line-490"></a><span class='hs-comment'>-- * calls `copyDirRecursive` for directories</span>
<a name="line-491"></a><span class='hs-definition'>easyCopy</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span>
<a name="line-492"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span>
<a name="line-493"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-494"></a><span class='hs-definition'>easyCopy</span> <span class='hs-varid'>from</span> <span class='hs-varid'>to</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-495"></a> <span class='hs-varid'>ftype</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>getFileType</span> <span class='hs-varid'>from</span>
<a name="line-496"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>ftype</span> <span class='hs-keyword'>of</span>
<a name="line-497"></a> <span class='hs-conid'>SymbolicLink</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>recreateSymlink</span> <span class='hs-varid'>from</span> <span class='hs-varid'>to</span>
<a name="line-498"></a> <span class='hs-conid'>RegularFile</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>copyFile</span> <span class='hs-varid'>from</span> <span class='hs-varid'>to</span>
<a name="line-499"></a> <span class='hs-conid'>Directory</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>copyDirRecursive</span> <span class='hs-varid'>from</span> <span class='hs-varid'>to</span>
<a name="line-500"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-501"></a>
<a name="line-502"></a>
<a name="line-503"></a><a name="easyCopyOverwrite"></a><span class='hs-comment'>-- |Like `easyCopy` except it overwrites the destination if it already exists.</span>
<a name="line-504"></a><span class='hs-comment'>-- For directories, this overwrites contents without pruning them, so the resulting</span>
<a name="line-505"></a><span class='hs-comment'>-- directory may have more files than have been copied.</span>
<a name="line-506"></a><span class='hs-comment'>--</span>
<a name="line-507"></a><span class='hs-comment'>-- Safety/reliability concerns:</span>
<a name="line-508"></a><span class='hs-comment'>--</span>
<a name="line-509"></a><span class='hs-comment'>-- * examines filetypes explicitly</span>
<a name="line-510"></a><span class='hs-comment'>-- * calls `copyDirRecursive` for directories</span>
<a name="line-511"></a><span class='hs-definition'>easyCopyOverwrite</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span>
<a name="line-512"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span>
<a name="line-513"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-514"></a><span class='hs-definition'>easyCopyOverwrite</span> <span class='hs-varid'>from</span> <span class='hs-varid'>to</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-515"></a> <span class='hs-varid'>ftype</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>getFileType</span> <span class='hs-varid'>from</span>
<a name="line-516"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>ftype</span> <span class='hs-keyword'>of</span>
<a name="line-517"></a> <span class='hs-conid'>SymbolicLink</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>whenM</span> <span class='hs-layout'>(</span><span class='hs-varid'>doesFileExist</span> <span class='hs-varid'>to</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>deleteFile</span> <span class='hs-varid'>to</span><span class='hs-layout'>)</span>
<a name="line-518"></a> <span class='hs-varop'>&gt;&gt;</span> <span class='hs-varid'>recreateSymlink</span> <span class='hs-varid'>from</span> <span class='hs-varid'>to</span>
<a name="line-519"></a> <span class='hs-conid'>RegularFile</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>copyFileOverwrite</span> <span class='hs-varid'>from</span> <span class='hs-varid'>to</span>
<a name="line-520"></a> <span class='hs-conid'>Directory</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>copyDirRecursiveOverwrite</span> <span class='hs-varid'>from</span> <span class='hs-varid'>to</span>
<a name="line-521"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-522"></a>
<a name="line-523"></a>
<a name="line-524"></a>
<a name="line-525"></a>
<a name="line-526"></a>
<a name="line-527"></a>
<a name="line-528"></a> <span class='hs-comment'>---------------------</span>
<a name="line-529"></a> <span class='hs-comment'>--[ File Deletion ]--</span>
<a name="line-530"></a> <span class='hs-comment'>---------------------</span>
<a name="line-531"></a>
<a name="line-532"></a>
<a name="line-533"></a><a name="deleteFile"></a><span class='hs-comment'>-- |Deletes the given file. Raises `eISDIR`</span>
<a name="line-534"></a><span class='hs-comment'>-- if run on a directory. Does not follow symbolic links.</span>
<a name="line-535"></a><span class='hs-comment'>--</span>
<a name="line-536"></a><span class='hs-comment'>-- Throws:</span>
<a name="line-537"></a><span class='hs-comment'>--</span>
<a name="line-538"></a><span class='hs-comment'>-- - `InappropriateType` for wrong file type (directory)</span>
<a name="line-539"></a><span class='hs-comment'>-- - `NoSuchThing` if the file does not exist</span>
<a name="line-540"></a><span class='hs-comment'>-- - `PermissionDenied` if the directory cannot be read</span>
<a name="line-541"></a><span class='hs-definition'>deleteFile</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-542"></a><span class='hs-definition'>deleteFile</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>withAbsPath</span> <span class='hs-varid'>p</span> <span class='hs-varid'>removeLink</span>
<a name="line-543"></a>
<a name="line-544"></a>
<a name="line-545"></a><a name="deleteDir"></a><span class='hs-comment'>-- |Deletes the given directory, which must be empty, never symlinks.</span>
<a name="line-546"></a><span class='hs-comment'>--</span>
<a name="line-547"></a><span class='hs-comment'>-- Throws:</span>
<a name="line-548"></a><span class='hs-comment'>--</span>
<a name="line-549"></a><span class='hs-comment'>-- - `InappropriateType` for wrong file type (symlink to directory)</span>
<a name="line-550"></a><span class='hs-comment'>-- - `InappropriateType` for wrong file type (regular file)</span>
<a name="line-551"></a><span class='hs-comment'>-- - `NoSuchThing` if directory does not exist</span>
<a name="line-552"></a><span class='hs-comment'>-- - `UnsatisfiedConstraints` if directory is not empty</span>
<a name="line-553"></a><span class='hs-comment'>-- - `PermissionDenied` if we can't open or write to parent directory</span>
<a name="line-554"></a><span class='hs-comment'>--</span>
<a name="line-555"></a><span class='hs-comment'>-- Notes: calls `rmdir`</span>
<a name="line-556"></a><span class='hs-definition'>deleteDir</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-557"></a><span class='hs-definition'>deleteDir</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>withAbsPath</span> <span class='hs-varid'>p</span> <span class='hs-varid'>removeDirectory</span>
<a name="line-558"></a>
<a name="line-559"></a>
<a name="line-560"></a><a name="deleteDirRecursive"></a><span class='hs-comment'>-- |Deletes the given directory recursively. Does not follow symbolic</span>
<a name="line-561"></a><span class='hs-comment'>-- links. Tries `deleteDir` first before attemtping a recursive</span>
<a name="line-562"></a><span class='hs-comment'>-- deletion.</span>
<a name="line-563"></a><span class='hs-comment'>--</span>
<a name="line-564"></a><span class='hs-comment'>-- On directory contents this behaves like `easyDelete`</span>
<a name="line-565"></a><span class='hs-comment'>-- and thus will ignore any file type that is not `RegularFile`,</span>
<a name="line-566"></a><span class='hs-comment'>-- `SymbolicLink` or `Directory`.</span>
<a name="line-567"></a><span class='hs-comment'>--</span>
<a name="line-568"></a><span class='hs-comment'>-- Safety/reliability concerns:</span>
<a name="line-569"></a><span class='hs-comment'>--</span>
<a name="line-570"></a><span class='hs-comment'>-- * not atomic</span>
<a name="line-571"></a><span class='hs-comment'>-- * examines filetypes explicitly</span>
<a name="line-572"></a><span class='hs-comment'>--</span>
<a name="line-573"></a><span class='hs-comment'>-- Throws:</span>
<a name="line-574"></a><span class='hs-comment'>--</span>
<a name="line-575"></a><span class='hs-comment'>-- - `InappropriateType` for wrong file type (symlink to directory)</span>
<a name="line-576"></a><span class='hs-comment'>-- - `InappropriateType` for wrong file type (regular file)</span>
<a name="line-577"></a><span class='hs-comment'>-- - `NoSuchThing` if directory does not exist</span>
<a name="line-578"></a><span class='hs-comment'>-- - `PermissionDenied` if we can't open or write to parent directory</span>
<a name="line-579"></a><span class='hs-definition'>deleteDirRecursive</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-580"></a><span class='hs-definition'>deleteDirRecursive</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span>
<a name="line-581"></a> <span class='hs-varid'>catchErrno</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>eNOTEMPTY</span><span class='hs-layout'>,</span> <span class='hs-varid'>eEXIST</span><span class='hs-keyglyph'>]</span>
<a name="line-582"></a> <span class='hs-layout'>(</span><span class='hs-varid'>deleteDir</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span>
<a name="line-583"></a> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span>
<a name="line-584"></a> <span class='hs-varid'>files</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>getDirsFiles</span> <span class='hs-varid'>p</span>
<a name="line-585"></a> <span class='hs-varid'>for_</span> <span class='hs-varid'>files</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>file</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-586"></a> <span class='hs-varid'>ftype</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>getFileType</span> <span class='hs-varid'>file</span>
<a name="line-587"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>ftype</span> <span class='hs-keyword'>of</span>
<a name="line-588"></a> <span class='hs-conid'>SymbolicLink</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>deleteFile</span> <span class='hs-varid'>file</span>
<a name="line-589"></a> <span class='hs-conid'>Directory</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>deleteDirRecursive</span> <span class='hs-varid'>file</span>
<a name="line-590"></a> <span class='hs-conid'>RegularFile</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>deleteFile</span> <span class='hs-varid'>file</span>
<a name="line-591"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-592"></a> <span class='hs-varid'>removeDirectory</span> <span class='hs-varop'>.</span> <span class='hs-varid'>toFilePath</span> <span class='hs-varop'>$</span> <span class='hs-varid'>p</span>
<a name="line-593"></a>
<a name="line-594"></a>
<a name="line-595"></a><a name="easyDelete"></a><span class='hs-comment'>-- |Deletes a file, directory or symlink.</span>
<a name="line-596"></a><span class='hs-comment'>-- In case of directory, performs recursive deletion. In case of</span>
<a name="line-597"></a><span class='hs-comment'>-- a symlink, the symlink file is deleted.</span>
<a name="line-598"></a><span class='hs-comment'>-- Any other file type is ignored.</span>
<a name="line-599"></a><span class='hs-comment'>--</span>
<a name="line-600"></a><span class='hs-comment'>-- Safety/reliability concerns:</span>
<a name="line-601"></a><span class='hs-comment'>--</span>
<a name="line-602"></a><span class='hs-comment'>-- * examines filetypes explicitly</span>
<a name="line-603"></a><span class='hs-comment'>-- * calls `deleteDirRecursive` for directories</span>
<a name="line-604"></a><span class='hs-definition'>easyDelete</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-605"></a><span class='hs-definition'>easyDelete</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-606"></a> <span class='hs-varid'>ftype</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>getFileType</span> <span class='hs-varid'>p</span>
<a name="line-607"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>ftype</span> <span class='hs-keyword'>of</span>
<a name="line-608"></a> <span class='hs-conid'>SymbolicLink</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>deleteFile</span> <span class='hs-varid'>p</span>
<a name="line-609"></a> <span class='hs-conid'>Directory</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>deleteDirRecursive</span> <span class='hs-varid'>p</span>
<a name="line-610"></a> <span class='hs-conid'>RegularFile</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>deleteFile</span> <span class='hs-varid'>p</span>
<a name="line-611"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-612"></a>
<a name="line-613"></a>
<a name="line-614"></a>
<a name="line-615"></a>
<a name="line-616"></a> <span class='hs-comment'>--------------------</span>
<a name="line-617"></a> <span class='hs-comment'>--[ File Opening ]--</span>
<a name="line-618"></a> <span class='hs-comment'>--------------------</span>
<a name="line-619"></a>
<a name="line-620"></a>
<a name="line-621"></a><a name="openFile"></a><span class='hs-comment'>-- |Opens a file appropriately by invoking xdg-open. The file type</span>
<a name="line-622"></a><span class='hs-comment'>-- is not checked. This forks a process.</span>
<a name="line-623"></a><span class='hs-definition'>openFile</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span>
<a name="line-624"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>ProcessID</span>
<a name="line-625"></a><span class='hs-definition'>openFile</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span>
<a name="line-626"></a> <span class='hs-varid'>withAbsPath</span> <span class='hs-varid'>p</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>fp</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-627"></a> <span class='hs-conid'>SPP</span><span class='hs-varop'>.</span><span class='hs-varid'>forkProcess</span> <span class='hs-varop'>$</span> <span class='hs-conid'>SPP</span><span class='hs-varop'>.</span><span class='hs-varid'>executeFile</span> <span class='hs-str'>"xdg-open"</span> <span class='hs-conid'>True</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>fp</span><span class='hs-keyglyph'>]</span> <span class='hs-conid'>Nothing</span>
<a name="line-628"></a>
<a name="line-629"></a>
<a name="line-630"></a><a name="executeFile"></a><span class='hs-comment'>-- |Executes a program with the given arguments. This forks a process.</span>
<a name="line-631"></a><span class='hs-definition'>executeFile</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-comment'>-- ^ program</span>
<a name="line-632"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>ByteString</span><span class='hs-keyglyph'>]</span> <span class='hs-comment'>-- ^ arguments</span>
<a name="line-633"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>ProcessID</span>
<a name="line-634"></a><span class='hs-definition'>executeFile</span> <span class='hs-varid'>fp</span> <span class='hs-varid'>args</span>
<a name="line-635"></a> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>withAbsPath</span> <span class='hs-varid'>fp</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>fpb</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-636"></a> <span class='hs-conid'>SPP</span><span class='hs-varop'>.</span><span class='hs-varid'>forkProcess</span>
<a name="line-637"></a> <span class='hs-varop'>$</span> <span class='hs-conid'>SPP</span><span class='hs-varop'>.</span><span class='hs-varid'>executeFile</span> <span class='hs-varid'>fpb</span> <span class='hs-conid'>True</span> <span class='hs-varid'>args</span> <span class='hs-conid'>Nothing</span>
<a name="line-638"></a>
<a name="line-639"></a>
<a name="line-640"></a>
<a name="line-641"></a>
<a name="line-642"></a> <span class='hs-comment'>---------------------</span>
<a name="line-643"></a> <span class='hs-comment'>--[ File Creation ]--</span>
<a name="line-644"></a> <span class='hs-comment'>---------------------</span>
<a name="line-645"></a>
<a name="line-646"></a>
<a name="line-647"></a><a name="createRegularFile"></a><span class='hs-comment'>-- |Create an empty regular file at the given directory with the given filename.</span>
<a name="line-648"></a><span class='hs-comment'>--</span>
<a name="line-649"></a><span class='hs-comment'>-- Throws:</span>
<a name="line-650"></a><span class='hs-comment'>--</span>
<a name="line-651"></a><span class='hs-comment'>-- - `PermissionDenied` if output directory cannot be written to</span>
<a name="line-652"></a><span class='hs-comment'>-- - `AlreadyExists` if destination file already exists</span>
<a name="line-653"></a><span class='hs-definition'>createRegularFile</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-654"></a><span class='hs-definition'>createRegularFile</span> <span class='hs-varid'>dest</span> <span class='hs-keyglyph'>=</span>
<a name="line-655"></a> <span class='hs-varid'>bracket</span> <span class='hs-layout'>(</span><span class='hs-conid'>SPI</span><span class='hs-varop'>.</span><span class='hs-varid'>openFd</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromAbs</span> <span class='hs-varid'>dest</span><span class='hs-layout'>)</span> <span class='hs-conid'>SPI</span><span class='hs-varop'>.</span><span class='hs-conid'>WriteOnly</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>newFilePerms</span><span class='hs-layout'>)</span>
<a name="line-656"></a> <span class='hs-layout'>(</span><span class='hs-conid'>SPI</span><span class='hs-varop'>.</span><span class='hs-varid'>defaultFileFlags</span> <span class='hs-layout'>{</span> <span class='hs-varid'>exclusive</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span> <span class='hs-layout'>}</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-657"></a> <span class='hs-conid'>SPI</span><span class='hs-varop'>.</span><span class='hs-varid'>closeFd</span>
<a name="line-658"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span>
<a name="line-659"></a>
<a name="line-660"></a>
<a name="line-661"></a><a name="createDir"></a><span class='hs-comment'>-- |Create an empty directory at the given directory with the given filename.</span>
<a name="line-662"></a><span class='hs-comment'>--</span>
<a name="line-663"></a><span class='hs-comment'>-- Throws:</span>
<a name="line-664"></a><span class='hs-comment'>--</span>
<a name="line-665"></a><span class='hs-comment'>-- - `PermissionDenied` if output directory cannot be written to</span>
<a name="line-666"></a><span class='hs-comment'>-- - `AlreadyExists` if destination directory already exists</span>
<a name="line-667"></a><span class='hs-definition'>createDir</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-668"></a><span class='hs-definition'>createDir</span> <span class='hs-varid'>dest</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>createDirectory</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromAbs</span> <span class='hs-varid'>dest</span><span class='hs-layout'>)</span> <span class='hs-varid'>newDirPerms</span>
<a name="line-669"></a>
<a name="line-670"></a>
<a name="line-671"></a><a name="createSymlink"></a><span class='hs-comment'>-- |Create a symlink.</span>
<a name="line-672"></a><span class='hs-comment'>--</span>
<a name="line-673"></a><span class='hs-comment'>-- Throws:</span>
<a name="line-674"></a><span class='hs-comment'>--</span>
<a name="line-675"></a><span class='hs-comment'>-- - `PermissionDenied` if output directory cannot be written to</span>
<a name="line-676"></a><span class='hs-comment'>-- - `AlreadyExists` if destination file already exists</span>
<a name="line-677"></a><span class='hs-comment'>--</span>
<a name="line-678"></a><span class='hs-comment'>-- Note: calls `symlink`</span>
<a name="line-679"></a><span class='hs-definition'>createSymlink</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-comment'>-- ^ destination file</span>
<a name="line-680"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ByteString</span> <span class='hs-comment'>-- ^ path the symlink points to</span>
<a name="line-681"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-682"></a><span class='hs-definition'>createSymlink</span> <span class='hs-varid'>dest</span> <span class='hs-varid'>sympoint</span>
<a name="line-683"></a> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>createSymbolicLink</span> <span class='hs-varid'>sympoint</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromAbs</span> <span class='hs-varid'>dest</span><span class='hs-layout'>)</span>
<a name="line-684"></a>
<a name="line-685"></a>
<a name="line-686"></a>
<a name="line-687"></a> <span class='hs-comment'>----------------------------</span>
<a name="line-688"></a> <span class='hs-comment'>--[ File Renaming/Moving ]--</span>
<a name="line-689"></a> <span class='hs-comment'>----------------------------</span>
<a name="line-690"></a>
<a name="line-691"></a>
<a name="line-692"></a><a name="renameFile"></a><span class='hs-comment'>-- |Rename a given file with the provided filename. Destination and source</span>
<a name="line-693"></a><span class='hs-comment'>-- must be on the same device, otherwise `eXDEV` will be raised.</span>
<a name="line-694"></a><span class='hs-comment'>--</span>
<a name="line-695"></a><span class='hs-comment'>-- Does not follow symbolic links, but renames the symbolic link file.</span>
<a name="line-696"></a><span class='hs-comment'>--</span>
<a name="line-697"></a><span class='hs-comment'>-- Safety/reliability concerns:</span>
<a name="line-698"></a><span class='hs-comment'>--</span>
<a name="line-699"></a><span class='hs-comment'>-- * has a separate set of exception handling, apart from the syscall</span>
<a name="line-700"></a><span class='hs-comment'>--</span>
<a name="line-701"></a><span class='hs-comment'>-- Throws:</span>
<a name="line-702"></a><span class='hs-comment'>--</span>
<a name="line-703"></a><span class='hs-comment'>-- - `NoSuchThing` if source file does not exist</span>
<a name="line-704"></a><span class='hs-comment'>-- - `PermissionDenied` if output directory cannot be written to</span>
<a name="line-705"></a><span class='hs-comment'>-- - `PermissionDenied` if source directory cannot be opened</span>
<a name="line-706"></a><span class='hs-comment'>-- - `UnsupportedOperation` if source and destination are on different devices</span>
<a name="line-707"></a><span class='hs-comment'>-- - `FileDoesExist` if destination file already exists (`HPathIOException`)</span>
<a name="line-708"></a><span class='hs-comment'>-- - `DirDoesExist` if destination directory already exists (`HPathIOException`)</span>
<a name="line-709"></a><span class='hs-comment'>-- - `SameFile` if destination and source are the same file (`HPathIOException`)</span>
<a name="line-710"></a><span class='hs-comment'>--</span>
<a name="line-711"></a><span class='hs-comment'>-- Note: calls `rename` (but does not allow to rename over existing files)</span>
<a name="line-712"></a><span class='hs-definition'>renameFile</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-713"></a><span class='hs-definition'>renameFile</span> <span class='hs-varid'>fromf</span> <span class='hs-varid'>tof</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-714"></a> <span class='hs-varid'>throwSameFile</span> <span class='hs-varid'>fromf</span> <span class='hs-varid'>tof</span>
<a name="line-715"></a> <span class='hs-varid'>throwFileDoesExist</span> <span class='hs-varid'>tof</span>
<a name="line-716"></a> <span class='hs-varid'>throwDirDoesExist</span> <span class='hs-varid'>tof</span>
<a name="line-717"></a> <span class='hs-varid'>rename</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromAbs</span> <span class='hs-varid'>fromf</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromAbs</span> <span class='hs-varid'>tof</span><span class='hs-layout'>)</span>
<a name="line-718"></a>
<a name="line-719"></a>
<a name="line-720"></a><a name="moveFile"></a><span class='hs-comment'>-- |Move a file. This also works across devices by copy-delete fallback.</span>
<a name="line-721"></a><span class='hs-comment'>-- And also works on directories.</span>
<a name="line-722"></a><span class='hs-comment'>--</span>
<a name="line-723"></a><span class='hs-comment'>-- Does not follow symbolic links, but renames the symbolic link file.</span>
<a name="line-724"></a><span class='hs-comment'>--</span>
<a name="line-725"></a><span class='hs-comment'>--</span>
<a name="line-726"></a><span class='hs-comment'>-- Safety/reliability concerns:</span>
<a name="line-727"></a><span class='hs-comment'>--</span>
<a name="line-728"></a><span class='hs-comment'>-- * copy-delete fallback is inherently non-atomic</span>
<a name="line-729"></a><span class='hs-comment'>-- * since this function calls `easyCopy` and `easyDelete` as a fallback</span>
<a name="line-730"></a><span class='hs-comment'>-- to `renameFile`, file types that are not `RegularFile`, `SymbolicLink`</span>
<a name="line-731"></a><span class='hs-comment'>-- or `Directory` may be ignored</span>
<a name="line-732"></a><span class='hs-comment'>--</span>
<a name="line-733"></a><span class='hs-comment'>-- Throws:</span>
<a name="line-734"></a><span class='hs-comment'>--</span>
<a name="line-735"></a><span class='hs-comment'>-- - `NoSuchThing` if source file does not exist</span>
<a name="line-736"></a><span class='hs-comment'>-- - `PermissionDenied` if output directory cannot be written to</span>
<a name="line-737"></a><span class='hs-comment'>-- - `PermissionDenied` if source directory cannot be opened</span>
<a name="line-738"></a><span class='hs-comment'>-- - `FileDoesExist` if destination file already exists (`HPathIOException`)</span>
<a name="line-739"></a><span class='hs-comment'>-- - `DirDoesExist` if destination directory already exists (`HPathIOException`)</span>
<a name="line-740"></a><span class='hs-comment'>-- - `SameFile` if destination and source are the same file (`HPathIOException`)</span>
<a name="line-741"></a><span class='hs-comment'>--</span>
<a name="line-742"></a><span class='hs-comment'>-- Note: calls `rename` (but does not allow to rename over existing files)</span>
<a name="line-743"></a><span class='hs-definition'>moveFile</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-comment'>-- ^ file to move</span>
<a name="line-744"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-comment'>-- ^ destination</span>
<a name="line-745"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-746"></a><span class='hs-definition'>moveFile</span> <span class='hs-varid'>from</span> <span class='hs-varid'>to</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-747"></a> <span class='hs-varid'>throwSameFile</span> <span class='hs-varid'>from</span> <span class='hs-varid'>to</span>
<a name="line-748"></a> <span class='hs-varid'>catchErrno</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>eXDEV</span><span class='hs-keyglyph'>]</span> <span class='hs-layout'>(</span><span class='hs-varid'>renameFile</span> <span class='hs-varid'>from</span> <span class='hs-varid'>to</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span>
<a name="line-749"></a> <span class='hs-varid'>easyCopy</span> <span class='hs-varid'>from</span> <span class='hs-varid'>to</span>
<a name="line-750"></a> <span class='hs-varid'>easyDelete</span> <span class='hs-varid'>from</span>
<a name="line-751"></a>
<a name="line-752"></a>
<a name="line-753"></a><a name="moveFileOverwrite"></a><span class='hs-comment'>-- |Like `moveFile`, but overwrites the destination if it exists.</span>
<a name="line-754"></a><span class='hs-comment'>--</span>
<a name="line-755"></a><span class='hs-comment'>-- Does not follow symbolic links, but renames the symbolic link file.</span>
<a name="line-756"></a><span class='hs-comment'>--</span>
<a name="line-757"></a><span class='hs-comment'>-- Ignores any file type that is not `RegularFile`, `SymbolicLink` or</span>
<a name="line-758"></a><span class='hs-comment'>-- `Directory`.</span>
<a name="line-759"></a><span class='hs-comment'>--</span>
<a name="line-760"></a><span class='hs-comment'>-- Safety/reliability concerns:</span>
<a name="line-761"></a><span class='hs-comment'>--</span>
<a name="line-762"></a><span class='hs-comment'>-- * copy-delete fallback is inherently non-atomic</span>
<a name="line-763"></a><span class='hs-comment'>-- * checks for file types and destination file existence explicitly</span>
<a name="line-764"></a><span class='hs-comment'>--</span>
<a name="line-765"></a><span class='hs-comment'>-- Throws:</span>
<a name="line-766"></a><span class='hs-comment'>--</span>
<a name="line-767"></a><span class='hs-comment'>-- - `NoSuchThing` if source file does not exist</span>
<a name="line-768"></a><span class='hs-comment'>-- - `PermissionDenied` if output directory cannot be written to</span>
<a name="line-769"></a><span class='hs-comment'>-- - `PermissionDenied` if source directory cannot be opened</span>
<a name="line-770"></a><span class='hs-comment'>-- - `SameFile` if destination and source are the same file (`HPathIOException`)</span>
<a name="line-771"></a><span class='hs-comment'>--</span>
<a name="line-772"></a><span class='hs-comment'>-- Note: calls `rename` (but does not allow to rename over existing files)</span>
<a name="line-773"></a><span class='hs-definition'>moveFileOverwrite</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-comment'>-- ^ file to move</span>
<a name="line-774"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-comment'>-- ^ destination</span>
<a name="line-775"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-776"></a><span class='hs-definition'>moveFileOverwrite</span> <span class='hs-varid'>from</span> <span class='hs-varid'>to</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-777"></a> <span class='hs-varid'>throwSameFile</span> <span class='hs-varid'>from</span> <span class='hs-varid'>to</span>
<a name="line-778"></a> <span class='hs-varid'>ft</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>getFileType</span> <span class='hs-varid'>from</span>
<a name="line-779"></a> <span class='hs-varid'>writable</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>isWritable</span> <span class='hs-varop'>$</span> <span class='hs-varid'>dirname</span> <span class='hs-varid'>to</span>
<a name="line-780"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>ft</span> <span class='hs-keyword'>of</span>
<a name="line-781"></a> <span class='hs-conid'>RegularFile</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-782"></a> <span class='hs-varid'>exists</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>doesFileExist</span> <span class='hs-varid'>to</span>
<a name="line-783"></a> <span class='hs-varid'>when</span> <span class='hs-layout'>(</span><span class='hs-varid'>exists</span> <span class='hs-varop'>&amp;&amp;</span> <span class='hs-varid'>writable</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>deleteFile</span> <span class='hs-varid'>to</span><span class='hs-layout'>)</span>
<a name="line-784"></a> <span class='hs-conid'>SymbolicLink</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-785"></a> <span class='hs-varid'>exists</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>doesFileExist</span> <span class='hs-varid'>to</span>
<a name="line-786"></a> <span class='hs-varid'>when</span> <span class='hs-layout'>(</span><span class='hs-varid'>exists</span> <span class='hs-varop'>&amp;&amp;</span> <span class='hs-varid'>writable</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>deleteFile</span> <span class='hs-varid'>to</span><span class='hs-layout'>)</span>
<a name="line-787"></a> <span class='hs-conid'>Directory</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-788"></a> <span class='hs-varid'>exists</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>doesDirectoryExist</span> <span class='hs-varid'>to</span>
<a name="line-789"></a> <span class='hs-varid'>when</span> <span class='hs-layout'>(</span><span class='hs-varid'>exists</span> <span class='hs-varop'>&amp;&amp;</span> <span class='hs-varid'>writable</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>deleteDir</span> <span class='hs-varid'>to</span><span class='hs-layout'>)</span>
<a name="line-790"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-791"></a> <span class='hs-varid'>moveFile</span> <span class='hs-varid'>from</span> <span class='hs-varid'>to</span>
<a name="line-792"></a>
<a name="line-793"></a>
<a name="line-794"></a>
<a name="line-795"></a>
<a name="line-796"></a> <span class='hs-comment'>-----------------------</span>
<a name="line-797"></a> <span class='hs-comment'>--[ File Permissions]--</span>
<a name="line-798"></a> <span class='hs-comment'>-----------------------</span>
<a name="line-799"></a>
<a name="line-800"></a>
<a name="line-801"></a><a name="newFilePerms"></a><span class='hs-comment'>-- |Default permissions for a new file.</span>
<a name="line-802"></a><span class='hs-definition'>newFilePerms</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FileMode</span>
<a name="line-803"></a><span class='hs-definition'>newFilePerms</span>
<a name="line-804"></a> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ownerWriteMode</span>
<a name="line-805"></a> <span class='hs-varop'>`unionFileModes`</span> <span class='hs-varid'>ownerReadMode</span>
<a name="line-806"></a> <span class='hs-varop'>`unionFileModes`</span> <span class='hs-varid'>groupWriteMode</span>
<a name="line-807"></a> <span class='hs-varop'>`unionFileModes`</span> <span class='hs-varid'>groupReadMode</span>
<a name="line-808"></a> <span class='hs-varop'>`unionFileModes`</span> <span class='hs-varid'>otherWriteMode</span>
<a name="line-809"></a> <span class='hs-varop'>`unionFileModes`</span> <span class='hs-varid'>otherReadMode</span>
<a name="line-810"></a>
<a name="line-811"></a>
<a name="line-812"></a><a name="newDirPerms"></a><span class='hs-comment'>-- |Default permissions for a new directory.</span>
<a name="line-813"></a><span class='hs-definition'>newDirPerms</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FileMode</span>
<a name="line-814"></a><span class='hs-definition'>newDirPerms</span>
<a name="line-815"></a> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ownerModes</span>
<a name="line-816"></a> <span class='hs-varop'>`unionFileModes`</span> <span class='hs-varid'>groupExecuteMode</span>
<a name="line-817"></a> <span class='hs-varop'>`unionFileModes`</span> <span class='hs-varid'>groupReadMode</span>
<a name="line-818"></a> <span class='hs-varop'>`unionFileModes`</span> <span class='hs-varid'>otherExecuteMode</span>
<a name="line-819"></a> <span class='hs-varop'>`unionFileModes`</span> <span class='hs-varid'>otherReadMode</span>
<a name="line-820"></a>
<a name="line-821"></a>
<a name="line-822"></a>
<a name="line-823"></a> <span class='hs-comment'>-------------------------</span>
<a name="line-824"></a> <span class='hs-comment'>--[ Directory reading ]--</span>
<a name="line-825"></a> <span class='hs-comment'>-------------------------</span>
<a name="line-826"></a>
<a name="line-827"></a>
<a name="line-828"></a><a name="getDirsFiles"></a><span class='hs-comment'>-- |Gets all filenames of the given directory. This excludes "." and "..".</span>
<a name="line-829"></a><span class='hs-comment'>-- This version does not follow symbolic links.</span>
<a name="line-830"></a><span class='hs-comment'>--</span>
<a name="line-831"></a><span class='hs-comment'>-- Throws:</span>
<a name="line-832"></a><span class='hs-comment'>--</span>
<a name="line-833"></a><span class='hs-comment'>-- - `NoSuchThing` if directory does not exist</span>
<a name="line-834"></a><span class='hs-comment'>-- - `InappropriateType` if file type is wrong (file)</span>
<a name="line-835"></a><span class='hs-comment'>-- - `InappropriateType` if file type is wrong (symlink to file)</span>
<a name="line-836"></a><span class='hs-comment'>-- - `InappropriateType` if file type is wrong (symlink to dir)</span>
<a name="line-837"></a><span class='hs-comment'>-- - `PermissionDenied` if directory cannot be opened</span>
<a name="line-838"></a><span class='hs-definition'>getDirsFiles</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-comment'>-- ^ dir to read</span>
<a name="line-839"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span><span class='hs-keyglyph'>]</span>
<a name="line-840"></a><span class='hs-definition'>getDirsFiles</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span>
<a name="line-841"></a> <span class='hs-varid'>withAbsPath</span> <span class='hs-varid'>p</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>fp</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-842"></a> <span class='hs-varid'>fd</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>openFd</span> <span class='hs-varid'>fp</span> <span class='hs-conid'>SPI</span><span class='hs-varop'>.</span><span class='hs-conid'>ReadOnly</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>SPDF</span><span class='hs-varop'>.</span><span class='hs-varid'>oNofollow</span><span class='hs-keyglyph'>]</span> <span class='hs-conid'>Nothing</span>
<a name="line-843"></a> <span class='hs-varid'>return</span>
<a name="line-844"></a> <span class='hs-varop'>.</span> <span class='hs-varid'>catMaybes</span>
<a name="line-845"></a> <span class='hs-varop'>.</span> <span class='hs-varid'>fmap</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>x</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-varop'>&lt;/&gt;</span><span class='hs-layout'>)</span> <span class='hs-varid'>p</span> <span class='hs-varop'>&lt;$&gt;</span> <span class='hs-layout'>(</span><span class='hs-varid'>parseMaybe</span> <span class='hs-varop'>.</span> <span class='hs-varid'>snd</span> <span class='hs-varop'>$</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-846"></a> <span class='hs-varop'>=&lt;&lt;</span> <span class='hs-varid'>getDirectoryContents'</span> <span class='hs-varid'>fd</span>
<a name="line-847"></a> <span class='hs-keyword'>where</span>
<a name="line-848"></a> <span class='hs-varid'>parseMaybe</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>Path</span> <span class='hs-conid'>Fn</span><span class='hs-layout'>)</span>
<a name="line-849"></a> <span class='hs-varid'>parseMaybe</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>parseFn</span>
<a name="line-850"></a>
<a name="line-851"></a>
<a name="line-852"></a>
<a name="line-853"></a>
<a name="line-854"></a> <span class='hs-comment'>---------------------------</span>
<a name="line-855"></a> <span class='hs-comment'>--[ FileType operations ]--</span>
<a name="line-856"></a> <span class='hs-comment'>---------------------------</span>
<a name="line-857"></a>
<a name="line-858"></a>
<a name="line-859"></a><a name="getFileType"></a><span class='hs-comment'>-- |Get the file type of the file located at the given path. Does</span>
<a name="line-860"></a><span class='hs-comment'>-- not follow symbolic links.</span>
<a name="line-861"></a><span class='hs-comment'>--</span>
<a name="line-862"></a><span class='hs-comment'>-- Throws:</span>
<a name="line-863"></a><span class='hs-comment'>--</span>
<a name="line-864"></a><span class='hs-comment'>-- - `NoSuchThing` if the file does not exist</span>
<a name="line-865"></a><span class='hs-comment'>-- - `PermissionDenied` if any part of the path is not accessible</span>
<a name="line-866"></a><span class='hs-definition'>getFileType</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>FileType</span>
<a name="line-867"></a><span class='hs-definition'>getFileType</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-868"></a> <span class='hs-varid'>fs</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>PF</span><span class='hs-varop'>.</span><span class='hs-varid'>getSymbolicLinkStatus</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromAbs</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span>
<a name="line-869"></a> <span class='hs-varid'>decide</span> <span class='hs-varid'>fs</span>
<a name="line-870"></a> <span class='hs-keyword'>where</span>
<a name="line-871"></a> <span class='hs-varid'>decide</span> <span class='hs-varid'>fs</span>
<a name="line-872"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>PF</span><span class='hs-varop'>.</span><span class='hs-varid'>isDirectory</span> <span class='hs-varid'>fs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>Directory</span>
<a name="line-873"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>PF</span><span class='hs-varop'>.</span><span class='hs-varid'>isRegularFile</span> <span class='hs-varid'>fs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>RegularFile</span>
<a name="line-874"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>PF</span><span class='hs-varop'>.</span><span class='hs-varid'>isSymbolicLink</span> <span class='hs-varid'>fs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>SymbolicLink</span>
<a name="line-875"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>PF</span><span class='hs-varop'>.</span><span class='hs-varid'>isBlockDevice</span> <span class='hs-varid'>fs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>BlockDevice</span>
<a name="line-876"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>PF</span><span class='hs-varop'>.</span><span class='hs-varid'>isCharacterDevice</span> <span class='hs-varid'>fs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>CharacterDevice</span>
<a name="line-877"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>PF</span><span class='hs-varop'>.</span><span class='hs-varid'>isNamedPipe</span> <span class='hs-varid'>fs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>NamedPipe</span>
<a name="line-878"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>PF</span><span class='hs-varop'>.</span><span class='hs-varid'>isSocket</span> <span class='hs-varid'>fs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>Socket</span>
<a name="line-879"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ioError</span> <span class='hs-varop'>$</span> <span class='hs-varid'>userError</span> <span class='hs-str'>"No filetype?!"</span>
<a name="line-880"></a>
<a name="line-881"></a>
<a name="line-882"></a>
<a name="line-883"></a> <span class='hs-comment'>--------------</span>
<a name="line-884"></a> <span class='hs-comment'>--[ Others ]--</span>
<a name="line-885"></a> <span class='hs-comment'>--------------</span>
<a name="line-886"></a>
<a name="line-887"></a>
<a name="line-888"></a>
<a name="line-889"></a><a name="canonicalizePath"></a><span class='hs-comment'>-- |Applies `realpath` on the given absolute path.</span>
<a name="line-890"></a><span class='hs-comment'>--</span>
<a name="line-891"></a><span class='hs-comment'>-- Throws:</span>
<a name="line-892"></a><span class='hs-comment'>--</span>
<a name="line-893"></a><span class='hs-comment'>-- - `NoSuchThing` if the file at the given path does not exist</span>
<a name="line-894"></a><span class='hs-comment'>-- - `NoSuchThing` if the symlink is broken</span>
<a name="line-895"></a><span class='hs-definition'>canonicalizePath</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span><span class='hs-layout'>)</span>
<a name="line-896"></a><span class='hs-definition'>canonicalizePath</span> <span class='hs-layout'>(</span><span class='hs-conid'>MkPath</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-897"></a> <span class='hs-varid'>nl</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>SPDT</span><span class='hs-varop'>.</span><span class='hs-varid'>realpath</span> <span class='hs-varid'>l</span>
<a name="line-898"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>MkPath</span> <span class='hs-varid'>nl</span>
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<pre><a name="line-1"></a><span class='hs-comment'>{-# LANGUAGE DeriveDataTypeable #-}</span>
<a name="line-2"></a>
<a name="line-3"></a><span class='hs-comment'>-- | Internal types and functions.</span>
<a name="line-4"></a>
<a name="line-5"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>HPath</span><span class='hs-varop'>.</span><span class='hs-conid'>Internal</span>
<a name="line-6"></a> <span class='hs-layout'>(</span><span class='hs-conid'>Path</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-7"></a> <span class='hs-keyword'>where</span>
<a name="line-8"></a>
<a name="line-9"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>DeepSeq</span> <span class='hs-layout'>(</span><span class='hs-conid'>NFData</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-10"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-layout'>(</span><span class='hs-conid'>ByteString</span><span class='hs-layout'>)</span>
<a name="line-11"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Data</span>
<a name="line-12"></a>
<a name="line-13"></a><a name="Path"></a><span class='hs-comment'>-- | Path of some base and type.</span>
<a name="line-14"></a><a name="Path"></a><span class='hs-comment'>--</span>
<a name="line-15"></a><a name="Path"></a><span class='hs-comment'>-- Internally is a ByteString. The ByteString can be of two formats only:</span>
<a name="line-16"></a><a name="Path"></a><span class='hs-comment'>--</span>
<a name="line-17"></a><a name="Path"></a><span class='hs-comment'>-- 1. without trailing path separator: @file.txt@, @foo\/bar.txt@, @\/foo\/bar.txt@</span>
<a name="line-18"></a><a name="Path"></a><span class='hs-comment'>-- 2. with trailing path separator: @foo\/@, @\/foo\/bar\/@</span>
<a name="line-19"></a><a name="Path"></a><span class='hs-comment'>--</span>
<a name="line-20"></a><a name="Path"></a><span class='hs-comment'>-- There are no duplicate</span>
<a name="line-21"></a><a name="Path"></a><span class='hs-comment'>-- path separators @\/\/@, no @..@, no @.\/@, no @~\/@, etc.</span>
<a name="line-22"></a><a name="Path"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Path</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>MkPath</span> <span class='hs-conid'>ByteString</span>
<a name="line-23"></a> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Typeable</span><span class='hs-layout'>)</span>
<a name="line-24"></a>
<a name="line-25"></a><a name="instance%20Eq%20(Path%20b)"></a><span class='hs-comment'>-- | ByteString equality.</span>
<a name="line-26"></a><a name="instance%20Eq%20(Path%20b)"></a><span class='hs-comment'>--</span>
<a name="line-27"></a><a name="instance%20Eq%20(Path%20b)"></a><span class='hs-comment'>-- The following property holds:</span>
<a name="line-28"></a><a name="instance%20Eq%20(Path%20b)"></a><span class='hs-comment'>--</span>
<a name="line-29"></a><a name="instance%20Eq%20(Path%20b)"></a><span class='hs-comment'>-- @show x == show y ≡ x == y@</span>
<a name="line-30"></a><a name="instance%20Eq%20(Path%20b)"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Eq</span> <span class='hs-layout'>(</span><span class='hs-conid'>Path</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-31"></a> <span class='hs-layout'>(</span><span class='hs-varop'>==</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>MkPath</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>MkPath</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-varid'>y</span>
<a name="line-32"></a>
<a name="line-33"></a><a name="instance%20Ord%20(Path%20b)"></a><span class='hs-comment'>-- | ByteString ordering.</span>
<a name="line-34"></a><a name="instance%20Ord%20(Path%20b)"></a><span class='hs-comment'>--</span>
<a name="line-35"></a><a name="instance%20Ord%20(Path%20b)"></a><span class='hs-comment'>-- The following property holds:</span>
<a name="line-36"></a><a name="instance%20Ord%20(Path%20b)"></a><span class='hs-comment'>--</span>
<a name="line-37"></a><a name="instance%20Ord%20(Path%20b)"></a><span class='hs-comment'>-- @show x \`compare\` show y ≡ x \`compare\` y@</span>
<a name="line-38"></a><a name="instance%20Ord%20(Path%20b)"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Ord</span> <span class='hs-layout'>(</span><span class='hs-conid'>Path</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-39"></a> <span class='hs-varid'>compare</span> <span class='hs-layout'>(</span><span class='hs-conid'>MkPath</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>MkPath</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>compare</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-40"></a>
<a name="line-41"></a><a name="instance%20Show%20(Path%20b)"></a><span class='hs-comment'>-- | Same as 'HPath.toFilePath'.</span>
<a name="line-42"></a><a name="instance%20Show%20(Path%20b)"></a><span class='hs-comment'>--</span>
<a name="line-43"></a><a name="instance%20Show%20(Path%20b)"></a><span class='hs-comment'>-- The following property holds:</span>
<a name="line-44"></a><a name="instance%20Show%20(Path%20b)"></a><span class='hs-comment'>--</span>
<a name="line-45"></a><a name="instance%20Show%20(Path%20b)"></a><span class='hs-comment'>-- @x == y ≡ show x == show y@</span>
<a name="line-46"></a><a name="instance%20Show%20(Path%20b)"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Show</span> <span class='hs-layout'>(</span><span class='hs-conid'>Path</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-47"></a> <span class='hs-varid'>show</span> <span class='hs-layout'>(</span><span class='hs-conid'>MkPath</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>show</span> <span class='hs-varid'>x</span>
<a name="line-48"></a>
<a name="line-49"></a><a name="instance%20NFData%20(Path%20b)"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>NFData</span> <span class='hs-layout'>(</span><span class='hs-conid'>Path</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-50"></a> <span class='hs-varid'>rnf</span> <span class='hs-layout'>(</span><span class='hs-conid'>MkPath</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>rnf</span> <span class='hs-varid'>x</span>
<a name="line-51"></a>
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<pre><a name="line-1"></a><span class='hs-comment'>-- |</span>
<a name="line-2"></a><span class='hs-comment'>-- Module : HPath</span>
<a name="line-3"></a><span class='hs-comment'>-- Copyright : © 2015–2016 FP Complete, 2016 Julian Ospald</span>
<a name="line-4"></a><span class='hs-comment'>-- License : BSD 3 clause</span>
<a name="line-5"></a><span class='hs-comment'>--</span>
<a name="line-6"></a><span class='hs-comment'>-- Maintainer : Julian Ospald &lt;hasufell@posteo.de&gt;</span>
<a name="line-7"></a><span class='hs-comment'>-- Stability : experimental</span>
<a name="line-8"></a><span class='hs-comment'>-- Portability : portable</span>
<a name="line-9"></a><span class='hs-comment'>--</span>
<a name="line-10"></a><span class='hs-comment'>-- Support for well-typed paths.</span>
<a name="line-11"></a>
<a name="line-12"></a>
<a name="line-13"></a><span class='hs-comment'>{-# LANGUAGE CPP #-}</span>
<a name="line-14"></a><span class='hs-comment'>{-# LANGUAGE DeriveDataTypeable #-}</span>
<a name="line-15"></a><span class='hs-comment'>{-# LANGUAGE EmptyDataDecls #-}</span>
<a name="line-16"></a><span class='hs-comment'>{-# LANGUAGE PatternSynonyms #-}</span>
<a name="line-17"></a>
<a name="line-18"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>HPath</span>
<a name="line-19"></a> <span class='hs-layout'>(</span>
<a name="line-20"></a> <span class='hs-comment'>-- * Types</span>
<a name="line-21"></a> <span class='hs-conid'>Abs</span>
<a name="line-22"></a> <span class='hs-layout'>,</span><span class='hs-conid'>Path</span>
<a name="line-23"></a> <span class='hs-layout'>,</span><span class='hs-conid'>Rel</span>
<a name="line-24"></a> <span class='hs-layout'>,</span><span class='hs-conid'>Fn</span>
<a name="line-25"></a> <span class='hs-layout'>,</span><span class='hs-conid'>PathParseException</span>
<a name="line-26"></a> <span class='hs-layout'>,</span><span class='hs-conid'>PathException</span>
<a name="line-27"></a> <span class='hs-layout'>,</span><span class='hs-conid'>RelC</span>
<a name="line-28"></a> <span class='hs-comment'>-- * PatternSynonyms/ViewPatterns</span>
<a name="line-29"></a> <span class='hs-layout'>,</span><span class='hs-varid'>pattern</span> <span class='hs-conid'>Path</span>
<a name="line-30"></a> <span class='hs-comment'>-- * Path Parsing</span>
<a name="line-31"></a> <span class='hs-layout'>,</span><span class='hs-varid'>parseAbs</span>
<a name="line-32"></a> <span class='hs-layout'>,</span><span class='hs-varid'>parseFn</span>
<a name="line-33"></a> <span class='hs-layout'>,</span><span class='hs-varid'>parseRel</span>
<a name="line-34"></a> <span class='hs-comment'>-- * Path Conversion</span>
<a name="line-35"></a> <span class='hs-layout'>,</span><span class='hs-varid'>fromAbs</span>
<a name="line-36"></a> <span class='hs-layout'>,</span><span class='hs-varid'>fromRel</span>
<a name="line-37"></a> <span class='hs-layout'>,</span><span class='hs-varid'>toFilePath</span>
<a name="line-38"></a> <span class='hs-comment'>-- * Path Operations</span>
<a name="line-39"></a> <span class='hs-layout'>,</span><span class='hs-layout'>(</span><span class='hs-varop'>&lt;/&gt;</span><span class='hs-layout'>)</span>
<a name="line-40"></a> <span class='hs-layout'>,</span><span class='hs-varid'>basename</span>
<a name="line-41"></a> <span class='hs-layout'>,</span><span class='hs-varid'>dirname</span>
<a name="line-42"></a> <span class='hs-layout'>,</span><span class='hs-varid'>isParentOf</span>
<a name="line-43"></a> <span class='hs-layout'>,</span><span class='hs-varid'>getAllParents</span>
<a name="line-44"></a> <span class='hs-layout'>,</span><span class='hs-varid'>stripDir</span>
<a name="line-45"></a> <span class='hs-comment'>-- * Path IO helpers</span>
<a name="line-46"></a> <span class='hs-layout'>,</span><span class='hs-varid'>withAbsPath</span>
<a name="line-47"></a> <span class='hs-layout'>,</span><span class='hs-varid'>withRelPath</span>
<a name="line-48"></a> <span class='hs-layout'>,</span><span class='hs-varid'>withFnPath</span>
<a name="line-49"></a> <span class='hs-layout'>)</span>
<a name="line-50"></a> <span class='hs-keyword'>where</span>
<a name="line-51"></a>
<a name="line-52"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Exception</span> <span class='hs-layout'>(</span><span class='hs-conid'>Exception</span><span class='hs-layout'>)</span>
<a name="line-53"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span><span class='hs-varop'>.</span><span class='hs-conid'>Catch</span> <span class='hs-layout'>(</span><span class='hs-conid'>MonadThrow</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-54"></a><span class='hs-cpp'>#if MIN_VERSION_bytestring(0,10,8)</span>
<a name="line-55"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-layout'>(</span><span class='hs-conid'>ByteString</span><span class='hs-layout'>,</span> <span class='hs-varid'>stripPrefix</span><span class='hs-layout'>)</span>
<a name="line-56"></a><span class='hs-cpp'>#else</span>
<a name="line-57"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-layout'>(</span><span class='hs-conid'>ByteString</span><span class='hs-layout'>)</span>
<a name="line-58"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>List</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>L</span>
<a name="line-59"></a><span class='hs-cpp'>#endif</span>
<a name="line-60"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>BS</span>
<a name="line-61"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Data</span>
<a name="line-62"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Maybe</span>
<a name="line-63"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Word8</span>
<a name="line-64"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>HPath</span><span class='hs-varop'>.</span><span class='hs-conid'>Internal</span>
<a name="line-65"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>FilePath</span> <span class='hs-varid'>hiding</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varop'>&lt;/&gt;</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-66"></a>
<a name="line-67"></a>
<a name="line-68"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span>
<a name="line-69"></a><span class='hs-comment'>-- Types</span>
<a name="line-70"></a>
<a name="line-71"></a><a name="Abs"></a><span class='hs-comment'>-- | An absolute path.</span>
<a name="line-72"></a><a name="Abs"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Abs</span> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Typeable</span><span class='hs-layout'>)</span>
<a name="line-73"></a>
<a name="line-74"></a><a name="Rel"></a><span class='hs-comment'>-- | A relative path; one without a root.</span>
<a name="line-75"></a><a name="Rel"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Rel</span> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Typeable</span><span class='hs-layout'>)</span>
<a name="line-76"></a>
<a name="line-77"></a><a name="Fn"></a><span class='hs-comment'>-- | A filename, without any '/'.</span>
<a name="line-78"></a><a name="Fn"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Fn</span> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Typeable</span><span class='hs-layout'>)</span>
<a name="line-79"></a>
<a name="line-80"></a><a name="PathParseException"></a><span class='hs-comment'>-- | Exception when parsing a location.</span>
<a name="line-81"></a><a name="PathParseException"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>PathParseException</span>
<a name="line-82"></a> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>InvalidAbs</span> <span class='hs-conid'>ByteString</span>
<a name="line-83"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>InvalidRel</span> <span class='hs-conid'>ByteString</span>
<a name="line-84"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>InvalidFn</span> <span class='hs-conid'>ByteString</span>
<a name="line-85"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Couldn'tStripPrefixTPS</span> <span class='hs-conid'>ByteString</span> <span class='hs-conid'>ByteString</span>
<a name="line-86"></a> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Show</span><span class='hs-layout'>,</span><span class='hs-conid'>Typeable</span><span class='hs-layout'>)</span>
<a name="line-87"></a><a name="instance%20Exception%20PathParseException"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Exception</span> <span class='hs-conid'>PathParseException</span>
<a name="line-88"></a>
<a name="line-89"></a><a name="PathException"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>PathException</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>RootDirHasNoBasename</span>
<a name="line-90"></a> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Show</span><span class='hs-layout'>,</span><span class='hs-conid'>Typeable</span><span class='hs-layout'>)</span>
<a name="line-91"></a><a name="instance%20Exception%20PathException"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Exception</span> <span class='hs-conid'>PathException</span>
<a name="line-92"></a>
<a name="line-93"></a><a name="ByteString"></a><span class='hs-keyword'>class</span> <span class='hs-conid'>RelC</span> <span class='hs-varid'>m</span>
<a name="line-94"></a>
<a name="line-95"></a><a name="instance%20RelC%20Rel"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>RelC</span> <span class='hs-conid'>Rel</span>
<a name="line-96"></a><a name="instance%20RelC%20Fn"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>RelC</span> <span class='hs-conid'>Fn</span>
<a name="line-97"></a>
<a name="line-98"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span>
<a name="line-99"></a><span class='hs-comment'>-- PatternSynonyms</span>
<a name="line-100"></a>
<a name="line-101"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-102"></a><a name="pattern"></a><span class='hs-definition'>pattern</span> <span class='hs-conid'>Path</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Path</span> <span class='hs-varid'>a</span>
<a name="line-103"></a><span class='hs-cpp'>#endif</span>
<a name="line-104"></a><span class='hs-definition'>pattern</span> <span class='hs-conid'>Path</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-layout'>(</span><span class='hs-conid'>MkPath</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span>
<a name="line-105"></a>
<a name="line-106"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span>
<a name="line-107"></a><span class='hs-comment'>-- Path Parsers</span>
<a name="line-108"></a>
<a name="line-109"></a>
<a name="line-110"></a>
<a name="line-111"></a><a name="parseAbs"></a><span class='hs-comment'>-- | Get a location for an absolute path. Produces a normalised path.</span>
<a name="line-112"></a><span class='hs-comment'>--</span>
<a name="line-113"></a><span class='hs-comment'>-- Throws: 'PathParseException'</span>
<a name="line-114"></a><span class='hs-comment'>--</span>
<a name="line-115"></a><span class='hs-comment'>-- &gt;&gt;&gt; parseAbs "/abc" :: Maybe (Path Abs)</span>
<a name="line-116"></a><span class='hs-comment'>-- Just "/abc"</span>
<a name="line-117"></a><span class='hs-comment'>-- &gt;&gt;&gt; parseAbs "/" :: Maybe (Path Abs)</span>
<a name="line-118"></a><span class='hs-comment'>-- Just "/"</span>
<a name="line-119"></a><span class='hs-comment'>-- &gt;&gt;&gt; parseAbs "/abc/def" :: Maybe (Path Abs)</span>
<a name="line-120"></a><span class='hs-comment'>-- Just "/abc/def"</span>
<a name="line-121"></a><span class='hs-comment'>-- &gt;&gt;&gt; parseAbs "/abc/def/.///" :: Maybe (Path Abs)</span>
<a name="line-122"></a><span class='hs-comment'>-- Just "/abc/def/"</span>
<a name="line-123"></a><span class='hs-comment'>-- &gt;&gt;&gt; parseAbs "abc" :: Maybe (Path Abs)</span>
<a name="line-124"></a><span class='hs-comment'>-- Nothing</span>
<a name="line-125"></a><span class='hs-comment'>-- &gt;&gt;&gt; parseAbs "" :: Maybe (Path Abs)</span>
<a name="line-126"></a><span class='hs-comment'>-- Nothing</span>
<a name="line-127"></a><span class='hs-comment'>-- &gt;&gt;&gt; parseAbs "/abc/../foo" :: Maybe (Path Abs)</span>
<a name="line-128"></a><span class='hs-comment'>-- Nothing</span>
<a name="line-129"></a><span class='hs-definition'>parseAbs</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MonadThrow</span> <span class='hs-varid'>m</span>
<a name="line-130"></a> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span><span class='hs-layout'>)</span>
<a name="line-131"></a><span class='hs-definition'>parseAbs</span> <span class='hs-varid'>filepath</span> <span class='hs-keyglyph'>=</span>
<a name="line-132"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>isAbsolute</span> <span class='hs-varid'>filepath</span> <span class='hs-varop'>&amp;&amp;</span>
<a name="line-133"></a> <span class='hs-varid'>isValid</span> <span class='hs-varid'>filepath</span> <span class='hs-varop'>&amp;&amp;</span>
<a name="line-134"></a> <span class='hs-varid'>not</span> <span class='hs-layout'>(</span><span class='hs-varid'>hasParentDir</span> <span class='hs-varid'>filepath</span><span class='hs-layout'>)</span>
<a name="line-135"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>MkPath</span> <span class='hs-varop'>$</span> <span class='hs-varid'>normalise</span> <span class='hs-varid'>filepath</span><span class='hs-layout'>)</span>
<a name="line-136"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>throwM</span> <span class='hs-layout'>(</span><span class='hs-conid'>InvalidAbs</span> <span class='hs-varid'>filepath</span><span class='hs-layout'>)</span>
<a name="line-137"></a>
<a name="line-138"></a>
<a name="line-139"></a><a name="parseRel"></a><span class='hs-comment'>-- | Get a location for a relative path. Produces a normalised</span>
<a name="line-140"></a><span class='hs-comment'>-- path.</span>
<a name="line-141"></a><span class='hs-comment'>--</span>
<a name="line-142"></a><span class='hs-comment'>-- Note that @filepath@ may contain any number of @./@ but may not consist</span>
<a name="line-143"></a><span class='hs-comment'>-- solely of @./@. It also may not contain a single @..@ anywhere.</span>
<a name="line-144"></a><span class='hs-comment'>--</span>
<a name="line-145"></a><span class='hs-comment'>-- Throws: 'PathParseException'</span>
<a name="line-146"></a><span class='hs-comment'>--</span>
<a name="line-147"></a><span class='hs-comment'>-- &gt;&gt;&gt; parseRel "abc" :: Maybe (Path Rel)</span>
<a name="line-148"></a><span class='hs-comment'>-- Just "abc"</span>
<a name="line-149"></a><span class='hs-comment'>-- &gt;&gt;&gt; parseRel "def/" :: Maybe (Path Rel)</span>
<a name="line-150"></a><span class='hs-comment'>-- Just "def/"</span>
<a name="line-151"></a><span class='hs-comment'>-- &gt;&gt;&gt; parseRel "abc/def" :: Maybe (Path Rel)</span>
<a name="line-152"></a><span class='hs-comment'>-- Just "abc/def"</span>
<a name="line-153"></a><span class='hs-comment'>-- &gt;&gt;&gt; parseRel "abc/def/." :: Maybe (Path Rel)</span>
<a name="line-154"></a><span class='hs-comment'>-- Just "abc/def/"</span>
<a name="line-155"></a><span class='hs-comment'>-- &gt;&gt;&gt; parseRel "/abc" :: Maybe (Path Rel)</span>
<a name="line-156"></a><span class='hs-comment'>-- Nothing</span>
<a name="line-157"></a><span class='hs-comment'>-- &gt;&gt;&gt; parseRel "" :: Maybe (Path Rel)</span>
<a name="line-158"></a><span class='hs-comment'>-- Nothing</span>
<a name="line-159"></a><span class='hs-comment'>-- &gt;&gt;&gt; parseRel "abc/../foo" :: Maybe (Path Rel)</span>
<a name="line-160"></a><span class='hs-comment'>-- Nothing</span>
<a name="line-161"></a><span class='hs-comment'>-- &gt;&gt;&gt; parseRel "." :: Maybe (Path Rel)</span>
<a name="line-162"></a><span class='hs-comment'>-- Nothing</span>
<a name="line-163"></a><span class='hs-comment'>-- &gt;&gt;&gt; parseRel ".." :: Maybe (Path Rel)</span>
<a name="line-164"></a><span class='hs-comment'>-- Nothing</span>
<a name="line-165"></a><span class='hs-definition'>parseRel</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MonadThrow</span> <span class='hs-varid'>m</span>
<a name="line-166"></a> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>Path</span> <span class='hs-conid'>Rel</span><span class='hs-layout'>)</span>
<a name="line-167"></a><span class='hs-definition'>parseRel</span> <span class='hs-varid'>filepath</span> <span class='hs-keyglyph'>=</span>
<a name="line-168"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>not</span> <span class='hs-layout'>(</span><span class='hs-varid'>isAbsolute</span> <span class='hs-varid'>filepath</span><span class='hs-layout'>)</span> <span class='hs-varop'>&amp;&amp;</span>
<a name="line-169"></a> <span class='hs-varid'>filepath</span> <span class='hs-varop'>/=</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-sel'>_period</span> <span class='hs-varop'>&amp;&amp;</span>
<a name="line-170"></a> <span class='hs-varid'>filepath</span> <span class='hs-varop'>/=</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-keyglyph'>[</span><span class='hs-sel'>_period</span><span class='hs-layout'>,</span> <span class='hs-sel'>_period</span><span class='hs-keyglyph'>]</span> <span class='hs-varop'>&amp;&amp;</span>
<a name="line-171"></a> <span class='hs-varid'>not</span> <span class='hs-layout'>(</span><span class='hs-varid'>hasParentDir</span> <span class='hs-varid'>filepath</span><span class='hs-layout'>)</span> <span class='hs-varop'>&amp;&amp;</span>
<a name="line-172"></a> <span class='hs-varid'>isValid</span> <span class='hs-varid'>filepath</span>
<a name="line-173"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>MkPath</span> <span class='hs-varop'>$</span> <span class='hs-varid'>normalise</span> <span class='hs-varid'>filepath</span><span class='hs-layout'>)</span>
<a name="line-174"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>throwM</span> <span class='hs-layout'>(</span><span class='hs-conid'>InvalidRel</span> <span class='hs-varid'>filepath</span><span class='hs-layout'>)</span>
<a name="line-175"></a>
<a name="line-176"></a>
<a name="line-177"></a><a name="parseFn"></a><span class='hs-comment'>-- | Parses a filename. Filenames must not contain slashes.</span>
<a name="line-178"></a><span class='hs-comment'>-- Excludes '.' and '..'.</span>
<a name="line-179"></a><span class='hs-comment'>--</span>
<a name="line-180"></a><span class='hs-comment'>-- Throws: 'PathParseException'</span>
<a name="line-181"></a><span class='hs-comment'>--</span>
<a name="line-182"></a><span class='hs-comment'>-- &gt;&gt;&gt; parseFn "abc" :: Maybe (Path Fn)</span>
<a name="line-183"></a><span class='hs-comment'>-- Just "abc"</span>
<a name="line-184"></a><span class='hs-comment'>-- &gt;&gt;&gt; parseFn "..." :: Maybe (Path Fn)</span>
<a name="line-185"></a><span class='hs-comment'>-- Just "..."</span>
<a name="line-186"></a><span class='hs-comment'>-- &gt;&gt;&gt; parseFn "def/" :: Maybe (Path Fn)</span>
<a name="line-187"></a><span class='hs-comment'>-- Nothing</span>
<a name="line-188"></a><span class='hs-comment'>-- &gt;&gt;&gt; parseFn "abc/def" :: Maybe (Path Fn)</span>
<a name="line-189"></a><span class='hs-comment'>-- Nothing</span>
<a name="line-190"></a><span class='hs-comment'>-- &gt;&gt;&gt; parseFn "abc/def/." :: Maybe (Path Fn)</span>
<a name="line-191"></a><span class='hs-comment'>-- Nothing</span>
<a name="line-192"></a><span class='hs-comment'>-- &gt;&gt;&gt; parseFn "/abc" :: Maybe (Path Fn)</span>
<a name="line-193"></a><span class='hs-comment'>-- Nothing</span>
<a name="line-194"></a><span class='hs-comment'>-- &gt;&gt;&gt; parseFn "" :: Maybe (Path Fn)</span>
<a name="line-195"></a><span class='hs-comment'>-- Nothing</span>
<a name="line-196"></a><span class='hs-comment'>-- &gt;&gt;&gt; parseFn "abc/../foo" :: Maybe (Path Fn)</span>
<a name="line-197"></a><span class='hs-comment'>-- Nothing</span>
<a name="line-198"></a><span class='hs-comment'>-- &gt;&gt;&gt; parseFn "." :: Maybe (Path Fn)</span>
<a name="line-199"></a><span class='hs-comment'>-- Nothing</span>
<a name="line-200"></a><span class='hs-comment'>-- &gt;&gt;&gt; parseFn ".." :: Maybe (Path Fn)</span>
<a name="line-201"></a><span class='hs-comment'>-- Nothing</span>
<a name="line-202"></a><span class='hs-definition'>parseFn</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MonadThrow</span> <span class='hs-varid'>m</span>
<a name="line-203"></a> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>Path</span> <span class='hs-conid'>Fn</span><span class='hs-layout'>)</span>
<a name="line-204"></a><span class='hs-definition'>parseFn</span> <span class='hs-varid'>filepath</span> <span class='hs-keyglyph'>=</span>
<a name="line-205"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>isFileName</span> <span class='hs-varid'>filepath</span> <span class='hs-varop'>&amp;&amp;</span>
<a name="line-206"></a> <span class='hs-varid'>filepath</span> <span class='hs-varop'>/=</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-sel'>_period</span> <span class='hs-varop'>&amp;&amp;</span>
<a name="line-207"></a> <span class='hs-varid'>filepath</span> <span class='hs-varop'>/=</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-keyglyph'>[</span><span class='hs-sel'>_period</span><span class='hs-layout'>,</span> <span class='hs-sel'>_period</span><span class='hs-keyglyph'>]</span> <span class='hs-varop'>&amp;&amp;</span>
<a name="line-208"></a> <span class='hs-varid'>isValid</span> <span class='hs-varid'>filepath</span>
<a name="line-209"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>MkPath</span> <span class='hs-varid'>filepath</span><span class='hs-layout'>)</span>
<a name="line-210"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>throwM</span> <span class='hs-layout'>(</span><span class='hs-conid'>InvalidFn</span> <span class='hs-varid'>filepath</span><span class='hs-layout'>)</span>
<a name="line-211"></a>
<a name="line-212"></a>
<a name="line-213"></a>
<a name="line-214"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span>
<a name="line-215"></a><span class='hs-comment'>-- Path Conversion</span>
<a name="line-216"></a>
<a name="line-217"></a><a name="toFilePath"></a><span class='hs-comment'>-- | Convert any Path to a ByteString type.</span>
<a name="line-218"></a><span class='hs-definition'>toFilePath</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ByteString</span>
<a name="line-219"></a><span class='hs-definition'>toFilePath</span> <span class='hs-layout'>(</span><span class='hs-conid'>MkPath</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>l</span>
<a name="line-220"></a>
<a name="line-221"></a><a name="fromAbs"></a><span class='hs-comment'>-- | Convert an absolute Path to a ByteString type.</span>
<a name="line-222"></a><span class='hs-definition'>fromAbs</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ByteString</span>
<a name="line-223"></a><span class='hs-definition'>fromAbs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toFilePath</span>
<a name="line-224"></a>
<a name="line-225"></a><a name="fromRel"></a><span class='hs-comment'>-- | Convert a relative Path to a ByteString type.</span>
<a name="line-226"></a><span class='hs-definition'>fromRel</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RelC</span> <span class='hs-varid'>r</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Path</span> <span class='hs-varid'>r</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ByteString</span>
<a name="line-227"></a><span class='hs-definition'>fromRel</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toFilePath</span>
<a name="line-228"></a>
<a name="line-229"></a>
<a name="line-230"></a>
<a name="line-231"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span>
<a name="line-232"></a><span class='hs-comment'>-- Path Operations</span>
<a name="line-233"></a>
<a name="line-234"></a><a name="%3c/%3e"></a><span class='hs-comment'>-- | Append two paths.</span>
<a name="line-235"></a><span class='hs-comment'>--</span>
<a name="line-236"></a><span class='hs-comment'>-- The second argument must always be a relative path, which ensures</span>
<a name="line-237"></a><span class='hs-comment'>-- that undefinable things like `"/abc" &lt;/&gt; "/def"` cannot happen.</span>
<a name="line-238"></a><span class='hs-comment'>--</span>
<a name="line-239"></a><span class='hs-comment'>-- Technically, the first argument can be a path that points to a non-directory,</span>
<a name="line-240"></a><span class='hs-comment'>-- because this library is IO-agnostic and makes no assumptions about</span>
<a name="line-241"></a><span class='hs-comment'>-- file types.</span>
<a name="line-242"></a><span class='hs-comment'>--</span>
<a name="line-243"></a><span class='hs-comment'>-- &gt;&gt;&gt; (MkPath "/") &lt;/&gt; (MkPath "file" :: Path Rel)</span>
<a name="line-244"></a><span class='hs-comment'>-- "/file"</span>
<a name="line-245"></a><span class='hs-comment'>-- &gt;&gt;&gt; (MkPath "/path/to") &lt;/&gt; (MkPath "file" :: Path Rel)</span>
<a name="line-246"></a><span class='hs-comment'>-- "/path/to/file"</span>
<a name="line-247"></a><span class='hs-comment'>-- &gt;&gt;&gt; (MkPath "/") &lt;/&gt; (MkPath "file/lal" :: Path Rel)</span>
<a name="line-248"></a><span class='hs-comment'>-- "/file/lal"</span>
<a name="line-249"></a><span class='hs-comment'>-- &gt;&gt;&gt; (MkPath "/") &lt;/&gt; (MkPath "file/" :: Path Rel)</span>
<a name="line-250"></a><span class='hs-comment'>-- "/file/"</span>
<a name="line-251"></a><span class='hs-layout'>(</span><span class='hs-varop'>&lt;/&gt;</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RelC</span> <span class='hs-varid'>r</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Path</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Path</span> <span class='hs-varid'>r</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Path</span> <span class='hs-varid'>b</span>
<a name="line-252"></a><span class='hs-layout'>(</span><span class='hs-varop'>&lt;/&gt;</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>MkPath</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>MkPath</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>MkPath</span> <span class='hs-layout'>(</span><span class='hs-varid'>a'</span> <span class='hs-varop'>`</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>append</span><span class='hs-varop'>`</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span>
<a name="line-253"></a> <span class='hs-keyword'>where</span>
<a name="line-254"></a> <span class='hs-varid'>a'</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>last</span> <span class='hs-varid'>a</span> <span class='hs-varop'>==</span> <span class='hs-varid'>pathSeparator</span>
<a name="line-255"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>a</span>
<a name="line-256"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>addTrailingPathSeparator</span> <span class='hs-varid'>a</span>
<a name="line-257"></a>
<a name="line-258"></a><a name="stripDir"></a><span class='hs-comment'>-- | Strip directory from path, making it relative to that directory.</span>
<a name="line-259"></a><span class='hs-comment'>-- Throws 'Couldn'tStripPrefixDir' if directory is not a parent of the path.</span>
<a name="line-260"></a><span class='hs-comment'>--</span>
<a name="line-261"></a><span class='hs-comment'>-- The bases must match.</span>
<a name="line-262"></a><span class='hs-comment'>--</span>
<a name="line-263"></a><span class='hs-comment'>-- &gt;&gt;&gt; (MkPath "/lal/lad") `stripDir` (MkPath "/lal/lad/fad") :: Maybe (Path Rel)</span>
<a name="line-264"></a><span class='hs-comment'>-- Just "fad"</span>
<a name="line-265"></a><span class='hs-comment'>-- &gt;&gt;&gt; (MkPath "lal/lad") `stripDir` (MkPath "lal/lad/fad") :: Maybe (Path Rel)</span>
<a name="line-266"></a><span class='hs-comment'>-- Just "fad"</span>
<a name="line-267"></a><span class='hs-comment'>-- &gt;&gt;&gt; (MkPath "/") `stripDir` (MkPath "/") :: Maybe (Path Rel)</span>
<a name="line-268"></a><span class='hs-comment'>-- Nothing</span>
<a name="line-269"></a><span class='hs-comment'>-- &gt;&gt;&gt; (MkPath "/lal/lad/fad") `stripDir` (MkPath "/lal/lad") :: Maybe (Path Rel)</span>
<a name="line-270"></a><span class='hs-comment'>-- Nothing</span>
<a name="line-271"></a><span class='hs-comment'>-- &gt;&gt;&gt; (MkPath "fad") `stripDir` (MkPath "fad") :: Maybe (Path Rel)</span>
<a name="line-272"></a><span class='hs-comment'>-- Nothing</span>
<a name="line-273"></a><span class='hs-definition'>stripDir</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MonadThrow</span> <span class='hs-varid'>m</span>
<a name="line-274"></a> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Path</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Path</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>Path</span> <span class='hs-conid'>Rel</span><span class='hs-layout'>)</span>
<a name="line-275"></a><span class='hs-definition'>stripDir</span> <span class='hs-layout'>(</span><span class='hs-conid'>MkPath</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>MkPath</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-276"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>stripPrefix</span> <span class='hs-varid'>p'</span> <span class='hs-varid'>l</span> <span class='hs-keyword'>of</span>
<a name="line-277"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>throwM</span> <span class='hs-layout'>(</span><span class='hs-conid'>Couldn'tStripPrefixTPS</span> <span class='hs-varid'>p'</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-278"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>ok</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>if</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>ok</span>
<a name="line-279"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>throwM</span> <span class='hs-layout'>(</span><span class='hs-conid'>Couldn'tStripPrefixTPS</span> <span class='hs-varid'>p'</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-280"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>MkPath</span> <span class='hs-varid'>ok</span><span class='hs-layout'>)</span>
<a name="line-281"></a> <span class='hs-keyword'>where</span>
<a name="line-282"></a> <span class='hs-varid'>p'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>addTrailingPathSeparator</span> <span class='hs-varid'>p</span>
<a name="line-283"></a>
<a name="line-284"></a><a name="isParentOf"></a><span class='hs-comment'>-- | Is p a parent of the given location? Implemented in terms of</span>
<a name="line-285"></a><span class='hs-comment'>-- 'stripDir'. The bases must match.</span>
<a name="line-286"></a><span class='hs-comment'>--</span>
<a name="line-287"></a><span class='hs-comment'>-- &gt;&gt;&gt; (MkPath "/lal/lad") `isParentOf` (MkPath "/lal/lad/fad")</span>
<a name="line-288"></a><span class='hs-comment'>-- True</span>
<a name="line-289"></a><span class='hs-comment'>-- &gt;&gt;&gt; (MkPath "lal/lad") `isParentOf` (MkPath "lal/lad/fad")</span>
<a name="line-290"></a><span class='hs-comment'>-- True</span>
<a name="line-291"></a><span class='hs-comment'>-- &gt;&gt;&gt; (MkPath "/") `isParentOf` (MkPath "/")</span>
<a name="line-292"></a><span class='hs-comment'>-- False</span>
<a name="line-293"></a><span class='hs-comment'>-- &gt;&gt;&gt; (MkPath "/lal/lad/fad") `isParentOf` (MkPath "/lal/lad")</span>
<a name="line-294"></a><span class='hs-comment'>-- False</span>
<a name="line-295"></a><span class='hs-comment'>-- &gt;&gt;&gt; (MkPath "fad") `isParentOf` (MkPath "fad")</span>
<a name="line-296"></a><span class='hs-comment'>-- False</span>
<a name="line-297"></a><span class='hs-definition'>isParentOf</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Path</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Bool</span>
<a name="line-298"></a><span class='hs-definition'>isParentOf</span> <span class='hs-varid'>p</span> <span class='hs-varid'>l</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>isJust</span> <span class='hs-layout'>(</span><span class='hs-varid'>stripDir</span> <span class='hs-varid'>p</span> <span class='hs-varid'>l</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>Path</span> <span class='hs-conid'>Rel</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-299"></a>
<a name="line-300"></a>
<a name="line-301"></a><a name="getAllParents"></a><span class='hs-comment'>-- |Get all parents of a path.</span>
<a name="line-302"></a><span class='hs-comment'>--</span>
<a name="line-303"></a><span class='hs-comment'>-- &gt;&gt;&gt; getAllParents (MkPath "/abs/def/dod")</span>
<a name="line-304"></a><span class='hs-comment'>-- ["/abs/def","/abs","/"]</span>
<a name="line-305"></a><span class='hs-comment'>-- &gt;&gt;&gt; getAllParents (MkPath "/")</span>
<a name="line-306"></a><span class='hs-comment'>-- []</span>
<a name="line-307"></a><span class='hs-definition'>getAllParents</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span><span class='hs-keyglyph'>]</span>
<a name="line-308"></a><span class='hs-definition'>getAllParents</span> <span class='hs-layout'>(</span><span class='hs-conid'>MkPath</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span>
<a name="line-309"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>np</span> <span class='hs-varop'>==</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-varid'>pathSeparator</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>[]</span>
<a name="line-310"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>dirname</span> <span class='hs-layout'>(</span><span class='hs-conid'>MkPath</span> <span class='hs-varid'>np</span><span class='hs-layout'>)</span> <span class='hs-conop'>:</span> <span class='hs-varid'>getAllParents</span> <span class='hs-layout'>(</span><span class='hs-varid'>dirname</span> <span class='hs-varop'>$</span> <span class='hs-conid'>MkPath</span> <span class='hs-varid'>np</span><span class='hs-layout'>)</span>
<a name="line-311"></a> <span class='hs-keyword'>where</span>
<a name="line-312"></a> <span class='hs-varid'>np</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>dropTrailingPathSeparator</span> <span class='hs-varop'>.</span> <span class='hs-varid'>normalise</span> <span class='hs-varop'>$</span> <span class='hs-varid'>p</span>
<a name="line-313"></a>
<a name="line-314"></a>
<a name="line-315"></a><a name="dirname"></a><span class='hs-comment'>-- | Extract the directory name of a path.</span>
<a name="line-316"></a><span class='hs-comment'>--</span>
<a name="line-317"></a><span class='hs-comment'>-- The following properties hold:</span>
<a name="line-318"></a><span class='hs-comment'>--</span>
<a name="line-319"></a><span class='hs-comment'>-- @dirname (p \&lt;\/&gt; a) == dirname p@</span>
<a name="line-320"></a><span class='hs-comment'>--</span>
<a name="line-321"></a><span class='hs-comment'>-- &gt;&gt;&gt; dirname (MkPath "/abc/def/dod")</span>
<a name="line-322"></a><span class='hs-comment'>-- "/abc/def"</span>
<a name="line-323"></a><span class='hs-comment'>-- &gt;&gt;&gt; dirname (MkPath "/")</span>
<a name="line-324"></a><span class='hs-comment'>-- "/"</span>
<a name="line-325"></a><span class='hs-definition'>dirname</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span>
<a name="line-326"></a><span class='hs-definition'>dirname</span> <span class='hs-layout'>(</span><span class='hs-conid'>MkPath</span> <span class='hs-varid'>fp</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>MkPath</span> <span class='hs-layout'>(</span><span class='hs-varid'>takeDirectory</span> <span class='hs-varop'>$</span> <span class='hs-varid'>dropTrailingPathSeparator</span> <span class='hs-varid'>fp</span><span class='hs-layout'>)</span>
<a name="line-327"></a>
<a name="line-328"></a><a name="basename"></a><span class='hs-comment'>-- | Extract the file part of a path.</span>
<a name="line-329"></a><span class='hs-comment'>--</span>
<a name="line-330"></a><span class='hs-comment'>--</span>
<a name="line-331"></a><span class='hs-comment'>-- The following properties hold:</span>
<a name="line-332"></a><span class='hs-comment'>--</span>
<a name="line-333"></a><span class='hs-comment'>-- @basename (p \&lt;\/&gt; a) == basename a@</span>
<a name="line-334"></a><span class='hs-comment'>--</span>
<a name="line-335"></a><span class='hs-comment'>-- Throws: `PathException` if given the root path "/"</span>
<a name="line-336"></a><span class='hs-comment'>--</span>
<a name="line-337"></a><span class='hs-comment'>-- &gt;&gt;&gt; basename (MkPath "/abc/def/dod") :: Maybe (Path Fn)</span>
<a name="line-338"></a><span class='hs-comment'>-- Just "dod"</span>
<a name="line-339"></a><span class='hs-comment'>-- &gt;&gt;&gt; basename (MkPath "/") :: Maybe (Path Fn)</span>
<a name="line-340"></a><span class='hs-comment'>-- Nothing</span>
<a name="line-341"></a><span class='hs-definition'>basename</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MonadThrow</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Path</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>Path</span> <span class='hs-conid'>Fn</span><span class='hs-layout'>)</span>
<a name="line-342"></a><span class='hs-definition'>basename</span> <span class='hs-layout'>(</span><span class='hs-conid'>MkPath</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-343"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>not</span> <span class='hs-layout'>(</span><span class='hs-varid'>isAbsolute</span> <span class='hs-varid'>rl</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>MkPath</span> <span class='hs-varid'>rl</span>
<a name="line-344"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>throwM</span> <span class='hs-conid'>RootDirHasNoBasename</span>
<a name="line-345"></a> <span class='hs-keyword'>where</span>
<a name="line-346"></a> <span class='hs-varid'>rl</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>last</span> <span class='hs-varop'>.</span> <span class='hs-varid'>splitPath</span> <span class='hs-varop'>.</span> <span class='hs-varid'>dropTrailingPathSeparator</span> <span class='hs-varop'>$</span> <span class='hs-varid'>l</span>
<a name="line-347"></a>
<a name="line-348"></a>
<a name="line-349"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span>
<a name="line-350"></a><span class='hs-comment'>-- Path IO helpers</span>
<a name="line-351"></a>
<a name="line-352"></a>
<a name="line-353"></a><a name="withAbsPath"></a><span class='hs-definition'>withAbsPath</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Abs</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-varid'>a</span>
<a name="line-354"></a><span class='hs-definition'>withAbsPath</span> <span class='hs-layout'>(</span><span class='hs-conid'>MkPath</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-varid'>action</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>action</span> <span class='hs-varid'>p</span>
<a name="line-355"></a>
<a name="line-356"></a>
<a name="line-357"></a><a name="withRelPath"></a><span class='hs-definition'>withRelPath</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Rel</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-varid'>a</span>
<a name="line-358"></a><span class='hs-definition'>withRelPath</span> <span class='hs-layout'>(</span><span class='hs-conid'>MkPath</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-varid'>action</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>action</span> <span class='hs-varid'>p</span>
<a name="line-359"></a>
<a name="line-360"></a>
<a name="line-361"></a><a name="withFnPath"></a><span class='hs-definition'>withFnPath</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-conid'>Fn</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-varid'>a</span>
<a name="line-362"></a><span class='hs-definition'>withFnPath</span> <span class='hs-layout'>(</span><span class='hs-conid'>MkPath</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-varid'>action</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>action</span> <span class='hs-varid'>p</span>
<a name="line-363"></a>
<a name="line-364"></a>
<a name="line-365"></a><span class='hs-comment'>------------------------</span>
<a name="line-366"></a><span class='hs-comment'>-- ByteString helpers</span>
<a name="line-367"></a>
<a name="line-368"></a><span class='hs-cpp'>#if MIN_VERSION_bytestring(0,10,8)</span>
<a name="line-369"></a><span class='hs-cpp'>#else</span>
<a name="line-370"></a><a name="stripPrefix"></a><span class='hs-definition'>stripPrefix</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Maybe</span> <span class='hs-conid'>ByteString</span>
<a name="line-371"></a><span class='hs-definition'>stripPrefix</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-varop'>`fmap`</span> <span class='hs-conid'>L</span><span class='hs-varop'>.</span><span class='hs-varid'>stripPrefix</span> <span class='hs-layout'>(</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>unpack</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>unpack</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span>
<a name="line-372"></a><span class='hs-cpp'>#endif</span>
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<pre><a name="line-1"></a><span class='hs-comment'>{-# LINE 1 "src/System/Posix/Directory/Foreign.hsc" #-}</span>
<a name="line-2"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>Directory</span><span class='hs-varop'>.</span><span class='hs-conid'>Foreign</span> <span class='hs-keyword'>where</span>
<a name="line-3"></a><span class='hs-comment'>{-# LINE 2 "src/System/Posix/Directory/Foreign.hsc" #-}</span>
<a name="line-4"></a>
<a name="line-5"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Bits</span>
<a name="line-6"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>List</span> <span class='hs-layout'>(</span><span class='hs-varid'>foldl'</span><span class='hs-layout'>)</span>
<a name="line-7"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Foreign</span><span class='hs-varop'>.</span><span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-conid'>Types</span>
<a name="line-8"></a>
<a name="line-9"></a>
<a name="line-10"></a><span class='hs-comment'>{-# LINE 8 "src/System/Posix/Directory/Foreign.hsc" #-}</span>
<a name="line-11"></a>
<a name="line-12"></a><span class='hs-comment'>{-# LINE 9 "src/System/Posix/Directory/Foreign.hsc" #-}</span>
<a name="line-13"></a>
<a name="line-14"></a><span class='hs-comment'>{-# LINE 10 "src/System/Posix/Directory/Foreign.hsc" #-}</span>
<a name="line-15"></a>
<a name="line-16"></a><span class='hs-comment'>{-# LINE 11 "src/System/Posix/Directory/Foreign.hsc" #-}</span>
<a name="line-17"></a>
<a name="line-18"></a><span class='hs-comment'>{-# LINE 12 "src/System/Posix/Directory/Foreign.hsc" #-}</span>
<a name="line-19"></a>
<a name="line-20"></a><span class='hs-comment'>{-# LINE 13 "src/System/Posix/Directory/Foreign.hsc" #-}</span>
<a name="line-21"></a>
<a name="line-22"></a><a name="DirType"></a><span class='hs-keyword'>newtype</span> <span class='hs-conid'>DirType</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>DirType</span> <span class='hs-conid'>Int</span> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Eq</span><span class='hs-layout'>,</span> <span class='hs-conid'>Show</span><span class='hs-layout'>)</span>
<a name="line-23"></a><a name="Flags"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Flags</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Flags</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>UnsupportedFlag</span> <span class='hs-conid'>String</span> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Eq</span><span class='hs-layout'>,</span> <span class='hs-conid'>Show</span><span class='hs-layout'>)</span>
<a name="line-24"></a>
<a name="line-25"></a><a name="unFlags"></a><span class='hs-definition'>unFlags</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Flags</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Int</span>
<a name="line-26"></a><span class='hs-definition'>unFlags</span> <span class='hs-layout'>(</span><span class='hs-conid'>Flags</span> <span class='hs-varid'>i</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>i</span>
<a name="line-27"></a><span class='hs-definition'>unFlags</span> <span class='hs-layout'>(</span><span class='hs-conid'>UnsupportedFlag</span> <span class='hs-varid'>name</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>error</span> <span class='hs-layout'>(</span><span class='hs-varid'>name</span> <span class='hs-varop'>++</span> <span class='hs-str'>" is not supported on this platform"</span><span class='hs-layout'>)</span>
<a name="line-28"></a>
<a name="line-29"></a><a name="isSupported"></a><span class='hs-comment'>-- |Returns @True@ if posix-paths was compiled with support for the provided</span>
<a name="line-30"></a><span class='hs-comment'>-- flag. (As of this writing, the only flag for which this check may be</span>
<a name="line-31"></a><span class='hs-comment'>-- necessary is 'oCloexec'; all other flags will always yield @True@.)</span>
<a name="line-32"></a><span class='hs-definition'>isSupported</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Flags</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Bool</span>
<a name="line-33"></a><span class='hs-definition'>isSupported</span> <span class='hs-layout'>(</span><span class='hs-conid'>Flags</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span>
<a name="line-34"></a><span class='hs-definition'>isSupported</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-35"></a>
<a name="line-36"></a><a name="oCloexec"></a><span class='hs-comment'>-- |@O_CLOEXEC@ is not supported on every POSIX platform. Use</span>
<a name="line-37"></a><span class='hs-comment'>-- @'isSupported' oCloexec@ to determine if support for @O_CLOEXEC@ was</span>
<a name="line-38"></a><span class='hs-comment'>-- compiled into your version of posix-paths. (If not, using @oCloexec@ will</span>
<a name="line-39"></a><span class='hs-comment'>-- throw an exception.)</span>
<a name="line-40"></a><span class='hs-definition'>oCloexec</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Flags</span>
<a name="line-41"></a>
<a name="line-42"></a><span class='hs-comment'>{-# LINE 34 "src/System/Posix/Directory/Foreign.hsc" #-}</span>
<a name="line-43"></a><span class='hs-definition'>oCloexec</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Flags</span> <span class='hs-num'>524288</span>
<a name="line-44"></a><span class='hs-comment'>{-# LINE 35 "src/System/Posix/Directory/Foreign.hsc" #-}</span>
<a name="line-45"></a>
<a name="line-46"></a><span class='hs-comment'>{-# LINE 40 "src/System/Posix/Directory/Foreign.hsc" #-}</span>
<a name="line-47"></a>
<a name="line-48"></a>
<a name="line-49"></a>
<a name="line-50"></a><span class='hs-comment'>-- If these enum declarations occur earlier in the file, haddock</span>
<a name="line-51"></a><span class='hs-comment'>-- gets royally confused about the above doc comments.</span>
<a name="line-52"></a><span class='hs-comment'>-- Probably <a href="http://trac.haskell.org/haddock/ticket/138">http://trac.haskell.org/haddock/ticket/138</a></span>
<a name="line-53"></a>
<a name="line-54"></a><a name="dtBlk"></a><span class='hs-definition'>dtBlk</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DirType</span>
<a name="line-55"></a><span class='hs-definition'>dtBlk</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>DirType</span> <span class='hs-num'>6</span>
<a name="line-56"></a><a name="dtChr"></a><span class='hs-definition'>dtChr</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DirType</span>
<a name="line-57"></a><span class='hs-definition'>dtChr</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>DirType</span> <span class='hs-num'>2</span>
<a name="line-58"></a><a name="dtDir"></a><span class='hs-definition'>dtDir</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DirType</span>
<a name="line-59"></a><span class='hs-definition'>dtDir</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>DirType</span> <span class='hs-num'>4</span>
<a name="line-60"></a><a name="dtFifo"></a><span class='hs-definition'>dtFifo</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DirType</span>
<a name="line-61"></a><span class='hs-definition'>dtFifo</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>DirType</span> <span class='hs-num'>1</span>
<a name="line-62"></a><a name="dtLnk"></a><span class='hs-definition'>dtLnk</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DirType</span>
<a name="line-63"></a><span class='hs-definition'>dtLnk</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>DirType</span> <span class='hs-num'>10</span>
<a name="line-64"></a><a name="dtReg"></a><span class='hs-definition'>dtReg</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DirType</span>
<a name="line-65"></a><span class='hs-definition'>dtReg</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>DirType</span> <span class='hs-num'>8</span>
<a name="line-66"></a><a name="dtSock"></a><span class='hs-definition'>dtSock</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DirType</span>
<a name="line-67"></a><span class='hs-definition'>dtSock</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>DirType</span> <span class='hs-num'>12</span>
<a name="line-68"></a><a name="dtUnknown"></a><span class='hs-definition'>dtUnknown</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DirType</span>
<a name="line-69"></a><span class='hs-definition'>dtUnknown</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>DirType</span> <span class='hs-num'>0</span>
<a name="line-70"></a>
<a name="line-71"></a><span class='hs-comment'>{-# LINE 48 "src/System/Posix/Directory/Foreign.hsc" #-}</span>
<a name="line-72"></a>
<a name="line-73"></a><a name="oAppend"></a><span class='hs-definition'>oAppend</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Flags</span>
<a name="line-74"></a><span class='hs-definition'>oAppend</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Flags</span> <span class='hs-num'>1024</span>
<a name="line-75"></a><a name="oAsync"></a><span class='hs-definition'>oAsync</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Flags</span>
<a name="line-76"></a><span class='hs-definition'>oAsync</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Flags</span> <span class='hs-num'>8192</span>
<a name="line-77"></a><a name="oCreat"></a><span class='hs-definition'>oCreat</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Flags</span>
<a name="line-78"></a><span class='hs-definition'>oCreat</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Flags</span> <span class='hs-num'>64</span>
<a name="line-79"></a><a name="oDirectory"></a><span class='hs-definition'>oDirectory</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Flags</span>
<a name="line-80"></a><span class='hs-definition'>oDirectory</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Flags</span> <span class='hs-num'>65536</span>
<a name="line-81"></a><a name="oExcl"></a><span class='hs-definition'>oExcl</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Flags</span>
<a name="line-82"></a><span class='hs-definition'>oExcl</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Flags</span> <span class='hs-num'>128</span>
<a name="line-83"></a><a name="oNoctty"></a><span class='hs-definition'>oNoctty</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Flags</span>
<a name="line-84"></a><span class='hs-definition'>oNoctty</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Flags</span> <span class='hs-num'>256</span>
<a name="line-85"></a><a name="oNofollow"></a><span class='hs-definition'>oNofollow</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Flags</span>
<a name="line-86"></a><span class='hs-definition'>oNofollow</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Flags</span> <span class='hs-num'>131072</span>
<a name="line-87"></a><a name="oNonblock"></a><span class='hs-definition'>oNonblock</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Flags</span>
<a name="line-88"></a><span class='hs-definition'>oNonblock</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Flags</span> <span class='hs-num'>2048</span>
<a name="line-89"></a><a name="oRdonly"></a><span class='hs-definition'>oRdonly</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Flags</span>
<a name="line-90"></a><span class='hs-definition'>oRdonly</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Flags</span> <span class='hs-num'>0</span>
<a name="line-91"></a><a name="oWronly"></a><span class='hs-definition'>oWronly</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Flags</span>
<a name="line-92"></a><span class='hs-definition'>oWronly</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Flags</span> <span class='hs-num'>1</span>
<a name="line-93"></a><a name="oRdwr"></a><span class='hs-definition'>oRdwr</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Flags</span>
<a name="line-94"></a><span class='hs-definition'>oRdwr</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Flags</span> <span class='hs-num'>2</span>
<a name="line-95"></a><a name="oSync"></a><span class='hs-definition'>oSync</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Flags</span>
<a name="line-96"></a><span class='hs-definition'>oSync</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Flags</span> <span class='hs-num'>1052672</span>
<a name="line-97"></a><a name="oTrunc"></a><span class='hs-definition'>oTrunc</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Flags</span>
<a name="line-98"></a><span class='hs-definition'>oTrunc</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Flags</span> <span class='hs-num'>512</span>
<a name="line-99"></a>
<a name="line-100"></a><span class='hs-comment'>{-# LINE 50 "src/System/Posix/Directory/Foreign.hsc" #-}</span>
<a name="line-101"></a>
<a name="line-102"></a><a name="pathMax"></a><span class='hs-definition'>pathMax</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span>
<a name="line-103"></a><span class='hs-definition'>pathMax</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>4096</span>
<a name="line-104"></a><span class='hs-comment'>{-# LINE 53 "src/System/Posix/Directory/Foreign.hsc" #-}</span>
<a name="line-105"></a>
<a name="line-106"></a><a name="unionFlags"></a><span class='hs-definition'>unionFlags</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Flags</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>CInt</span>
<a name="line-107"></a><span class='hs-definition'>unionFlags</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varop'>.</span> <span class='hs-varid'>foldl'</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varop'>.</span> <span class='hs-varid'>unFlags</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-layout'>(</span><span class='hs-varop'>.|.</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-num'>0</span>
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<pre><a name="line-1"></a><span class='hs-comment'>-- |</span>
<a name="line-2"></a><span class='hs-comment'>-- Module : System.Posix.Directory.Traversals</span>
<a name="line-3"></a><span class='hs-comment'>-- Copyright : © 2016 Julian Ospald</span>
<a name="line-4"></a><span class='hs-comment'>-- License : BSD3</span>
<a name="line-5"></a><span class='hs-comment'>--</span>
<a name="line-6"></a><span class='hs-comment'>-- Maintainer : Julian Ospald &lt;hasufell@posteo.de&gt;</span>
<a name="line-7"></a><span class='hs-comment'>-- Stability : experimental</span>
<a name="line-8"></a><span class='hs-comment'>-- Portability : portable</span>
<a name="line-9"></a><span class='hs-comment'>--</span>
<a name="line-10"></a><span class='hs-comment'>-- Traversal and read operations on directories.</span>
<a name="line-11"></a>
<a name="line-12"></a>
<a name="line-13"></a><span class='hs-comment'>{-# LANGUAGE ForeignFunctionInterface #-}</span>
<a name="line-14"></a><span class='hs-comment'>{-# LANGUAGE OverloadedStrings #-}</span>
<a name="line-15"></a><span class='hs-comment'>{-# LANGUAGE PackageImports #-}</span>
<a name="line-16"></a><span class='hs-comment'>{-# LANGUAGE TupleSections #-}</span>
<a name="line-17"></a><span class='hs-comment'>{-# LANGUAGE ViewPatterns #-}</span>
<a name="line-18"></a>
<a name="line-19"></a><span class='hs-comment'>{-# OPTIONS_GHC -Wall #-}</span>
<a name="line-20"></a>
<a name="line-21"></a>
<a name="line-22"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>Directory</span><span class='hs-varop'>.</span><span class='hs-conid'>Traversals</span> <span class='hs-layout'>(</span>
<a name="line-23"></a>
<a name="line-24"></a> <span class='hs-varid'>getDirectoryContents</span>
<a name="line-25"></a><span class='hs-layout'>,</span> <span class='hs-varid'>getDirectoryContents'</span>
<a name="line-26"></a>
<a name="line-27"></a><span class='hs-layout'>,</span> <span class='hs-varid'>allDirectoryContents</span>
<a name="line-28"></a><span class='hs-layout'>,</span> <span class='hs-varid'>allDirectoryContents'</span>
<a name="line-29"></a><span class='hs-layout'>,</span> <span class='hs-varid'>traverseDirectory</span>
<a name="line-30"></a>
<a name="line-31"></a><span class='hs-comment'>-- lower-level stuff</span>
<a name="line-32"></a><span class='hs-layout'>,</span> <span class='hs-varid'>readDirEnt</span>
<a name="line-33"></a><span class='hs-layout'>,</span> <span class='hs-varid'>packDirStream</span>
<a name="line-34"></a><span class='hs-layout'>,</span> <span class='hs-varid'>unpackDirStream</span>
<a name="line-35"></a><span class='hs-layout'>,</span> <span class='hs-varid'>fdOpendir</span>
<a name="line-36"></a>
<a name="line-37"></a><span class='hs-layout'>,</span> <span class='hs-varid'>realpath</span>
<a name="line-38"></a><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-39"></a>
<a name="line-40"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Applicative</span>
<a name="line-41"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span>
<a name="line-42"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>FilePath</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varop'>&lt;/&gt;</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-43"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>Directory</span><span class='hs-varop'>.</span><span class='hs-conid'>Foreign</span>
<a name="line-44"></a>
<a name="line-45"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Posix</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>Posix</span>
<a name="line-46"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>IO</span><span class='hs-varop'>.</span><span class='hs-conid'>Error</span>
<a name="line-47"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Exception</span>
<a name="line-48"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-varop'>.</span><span class='hs-conid'>Char8</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>BS</span>
<a name="line-49"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-varop'>.</span><span class='hs-conid'>FilePath</span>
<a name="line-50"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>Directory</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>PosixBS</span>
<a name="line-51"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>Files</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span>
<a name="line-52"></a>
<a name="line-53"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>IO</span><span class='hs-varop'>.</span><span class='hs-conid'>Unsafe</span>
<a name="line-54"></a><span class='hs-keyword'>import</span> <span class='hs-str'>"unix"</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>IO</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-layout'>(</span><span class='hs-varid'>closeFd</span><span class='hs-layout'>)</span>
<a name="line-55"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Unsafe</span><span class='hs-varop'>.</span><span class='hs-conid'>Coerce</span> <span class='hs-layout'>(</span><span class='hs-varid'>unsafeCoerce</span><span class='hs-layout'>)</span>
<a name="line-56"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Foreign</span><span class='hs-varop'>.</span><span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-conid'>Error</span>
<a name="line-57"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Foreign</span><span class='hs-varop'>.</span><span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-conid'>String</span>
<a name="line-58"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Foreign</span><span class='hs-varop'>.</span><span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-conid'>Types</span>
<a name="line-59"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Foreign</span><span class='hs-varop'>.</span><span class='hs-conid'>Marshal</span><span class='hs-varop'>.</span><span class='hs-conid'>Alloc</span> <span class='hs-layout'>(</span><span class='hs-varid'>alloca</span><span class='hs-layout'>,</span><span class='hs-varid'>allocaBytes</span><span class='hs-layout'>)</span>
<a name="line-60"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Foreign</span><span class='hs-varop'>.</span><span class='hs-conid'>Ptr</span>
<a name="line-61"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Foreign</span><span class='hs-varop'>.</span><span class='hs-conid'>Storable</span>
<a name="line-62"></a>
<a name="line-63"></a>
<a name="line-64"></a>
<a name="line-65"></a>
<a name="line-66"></a><span class='hs-comment'>----------------------------------------------------------</span>
<a name="line-67"></a>
<a name="line-68"></a><a name="allDirectoryContents"></a><span class='hs-comment'>-- | Get all files from a directory and its subdirectories.</span>
<a name="line-69"></a><span class='hs-comment'>--</span>
<a name="line-70"></a><span class='hs-comment'>-- Upon entering a directory, 'allDirectoryContents' will get all entries</span>
<a name="line-71"></a><span class='hs-comment'>-- strictly. However the returned list is lazy in that directories will only</span>
<a name="line-72"></a><span class='hs-comment'>-- be accessed on demand.</span>
<a name="line-73"></a><span class='hs-comment'>--</span>
<a name="line-74"></a><span class='hs-comment'>-- Follows symbolic links for the input dir.</span>
<a name="line-75"></a><span class='hs-definition'>allDirectoryContents</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>RawFilePath</span><span class='hs-keyglyph'>]</span>
<a name="line-76"></a><span class='hs-definition'>allDirectoryContents</span> <span class='hs-varid'>topdir</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-77"></a> <span class='hs-varid'>namesAndTypes</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>getDirectoryContents</span> <span class='hs-varid'>topdir</span>
<a name="line-78"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>properNames</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>filter</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varop'>`notElem`</span> <span class='hs-keyglyph'>[</span><span class='hs-str'>"."</span><span class='hs-layout'>,</span> <span class='hs-str'>".."</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>snd</span><span class='hs-layout'>)</span> <span class='hs-varid'>namesAndTypes</span>
<a name="line-79"></a> <span class='hs-varid'>paths</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>forM</span> <span class='hs-varid'>properNames</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-varid'>typ</span><span class='hs-layout'>,</span><span class='hs-varid'>name</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>unsafeInterleaveIO</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span>
<a name="line-80"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>path</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>topdir</span> <span class='hs-varop'>&lt;/&gt;</span> <span class='hs-varid'>name</span>
<a name="line-81"></a> <span class='hs-keyword'>case</span> <span class='hs-conid'>()</span> <span class='hs-keyword'>of</span>
<a name="line-82"></a> <span class='hs-conid'>()</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>typ</span> <span class='hs-varop'>==</span> <span class='hs-varid'>dtDir</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>allDirectoryContents</span> <span class='hs-varid'>path</span>
<a name="line-83"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>typ</span> <span class='hs-varop'>==</span> <span class='hs-varid'>dtUnknown</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-84"></a> <span class='hs-varid'>isDir</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>isDirectory</span> <span class='hs-varop'>&lt;$&gt;</span> <span class='hs-varid'>getFileStatus</span> <span class='hs-varid'>path</span>
<a name="line-85"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>isDir</span>
<a name="line-86"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>allDirectoryContents</span> <span class='hs-varid'>path</span>
<a name="line-87"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>return</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>path</span><span class='hs-keyglyph'>]</span>
<a name="line-88"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>return</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>path</span><span class='hs-keyglyph'>]</span>
<a name="line-89"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>topdir</span> <span class='hs-conop'>:</span> <span class='hs-varid'>concat</span> <span class='hs-varid'>paths</span><span class='hs-layout'>)</span>
<a name="line-90"></a>
<a name="line-91"></a><a name="allDirectoryContents'"></a><span class='hs-comment'>-- | Get all files from a directory and its subdirectories strictly.</span>
<a name="line-92"></a><span class='hs-comment'>--</span>
<a name="line-93"></a><span class='hs-comment'>-- Follows symbolic links for the input dir.</span>
<a name="line-94"></a><span class='hs-definition'>allDirectoryContents'</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>RawFilePath</span><span class='hs-keyglyph'>]</span>
<a name="line-95"></a><span class='hs-definition'>allDirectoryContents'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fmap</span> <span class='hs-varid'>reverse</span> <span class='hs-varop'>.</span> <span class='hs-varid'>traverseDirectory</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>acc</span> <span class='hs-varid'>fp</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>fp</span><span class='hs-conop'>:</span><span class='hs-varid'>acc</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-conid'>[]</span>
<a name="line-96"></a><span class='hs-comment'>-- this uses traverseDirectory because it's more efficient than forcing the</span>
<a name="line-97"></a><span class='hs-comment'>-- lazy version.</span>
<a name="line-98"></a>
<a name="line-99"></a><a name="traverseDirectory"></a><span class='hs-comment'>-- | Recursively apply the 'action' to the parent directory and all</span>
<a name="line-100"></a><span class='hs-comment'>-- files/subdirectories.</span>
<a name="line-101"></a><span class='hs-comment'>--</span>
<a name="line-102"></a><span class='hs-comment'>-- This function allows for memory-efficient traversals.</span>
<a name="line-103"></a><span class='hs-comment'>--</span>
<a name="line-104"></a><span class='hs-comment'>-- Follows symbolic links for the input dir.</span>
<a name="line-105"></a><span class='hs-definition'>traverseDirectory</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-varid'>s</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-varid'>s</span>
<a name="line-106"></a><span class='hs-definition'>traverseDirectory</span> <span class='hs-varid'>act</span> <span class='hs-varid'>s0</span> <span class='hs-varid'>topdir</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toploop</span>
<a name="line-107"></a> <span class='hs-keyword'>where</span>
<a name="line-108"></a> <span class='hs-varid'>toploop</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-109"></a> <span class='hs-varid'>isDir</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>isDirectory</span> <span class='hs-varop'>&lt;$&gt;</span> <span class='hs-varid'>getFileStatus</span> <span class='hs-varid'>topdir</span>
<a name="line-110"></a> <span class='hs-varid'>s'</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>act</span> <span class='hs-varid'>s0</span> <span class='hs-varid'>topdir</span>
<a name="line-111"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>isDir</span> <span class='hs-keyword'>then</span> <span class='hs-varid'>actOnDirContents</span> <span class='hs-varid'>topdir</span> <span class='hs-varid'>s'</span> <span class='hs-varid'>loop</span>
<a name="line-112"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>return</span> <span class='hs-varid'>s'</span>
<a name="line-113"></a> <span class='hs-varid'>loop</span> <span class='hs-varid'>typ</span> <span class='hs-varid'>path</span> <span class='hs-varid'>acc</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-114"></a> <span class='hs-varid'>isDir</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-keyword'>case</span> <span class='hs-conid'>()</span> <span class='hs-keyword'>of</span>
<a name="line-115"></a> <span class='hs-conid'>()</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>typ</span> <span class='hs-varop'>==</span> <span class='hs-varid'>dtDir</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>return</span> <span class='hs-conid'>True</span>
<a name="line-116"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>typ</span> <span class='hs-varop'>==</span> <span class='hs-varid'>dtUnknown</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>isDirectory</span> <span class='hs-varop'>&lt;$&gt;</span> <span class='hs-varid'>getFileStatus</span> <span class='hs-varid'>path</span>
<a name="line-117"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>return</span> <span class='hs-conid'>False</span>
<a name="line-118"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>isDir</span>
<a name="line-119"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>act</span> <span class='hs-varid'>acc</span> <span class='hs-varid'>path</span> <span class='hs-varop'>&gt;&gt;=</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>acc'</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>actOnDirContents</span> <span class='hs-varid'>path</span> <span class='hs-varid'>acc'</span> <span class='hs-varid'>loop</span>
<a name="line-120"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>act</span> <span class='hs-varid'>acc</span> <span class='hs-varid'>path</span>
<a name="line-121"></a>
<a name="line-122"></a><a name="actOnDirContents"></a><span class='hs-definition'>actOnDirContents</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RawFilePath</span>
<a name="line-123"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>b</span>
<a name="line-124"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-conid'>DirType</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span>
<a name="line-125"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-varid'>b</span>
<a name="line-126"></a><span class='hs-definition'>actOnDirContents</span> <span class='hs-varid'>pathRelToTop</span> <span class='hs-varid'>b</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span>
<a name="line-127"></a> <span class='hs-varid'>modifyIOError</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varop'>`ioeSetFileName`</span> <span class='hs-layout'>(</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>unpack</span> <span class='hs-varid'>pathRelToTop</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span>
<a name="line-128"></a> <span class='hs-layout'>(</span><span class='hs-varop'>`ioeSetLocation`</span> <span class='hs-str'>"findBSTypRel"</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span>
<a name="line-129"></a> <span class='hs-varid'>bracket</span>
<a name="line-130"></a> <span class='hs-layout'>(</span><span class='hs-varid'>openDirStream</span> <span class='hs-varid'>pathRelToTop</span><span class='hs-layout'>)</span>
<a name="line-131"></a> <span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-varid'>closeDirStream</span>
<a name="line-132"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>dirp</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>loop</span> <span class='hs-varid'>dirp</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span>
<a name="line-133"></a> <span class='hs-keyword'>where</span>
<a name="line-134"></a> <span class='hs-varid'>loop</span> <span class='hs-varid'>dirp</span> <span class='hs-varid'>b'</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-135"></a> <span class='hs-layout'>(</span><span class='hs-varid'>typ</span><span class='hs-layout'>,</span><span class='hs-varid'>e</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>readDirEnt</span> <span class='hs-varid'>dirp</span>
<a name="line-136"></a> <span class='hs-keyword'>if</span> <span class='hs-layout'>(</span><span class='hs-varid'>e</span> <span class='hs-varop'>==</span> <span class='hs-str'>""</span><span class='hs-layout'>)</span>
<a name="line-137"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>return</span> <span class='hs-varid'>b'</span>
<a name="line-138"></a> <span class='hs-keyword'>else</span>
<a name="line-139"></a> <span class='hs-keyword'>if</span> <span class='hs-layout'>(</span><span class='hs-varid'>e</span> <span class='hs-varop'>==</span> <span class='hs-str'>"."</span> <span class='hs-varop'>||</span> <span class='hs-varid'>e</span> <span class='hs-varop'>==</span> <span class='hs-str'>".."</span><span class='hs-layout'>)</span>
<a name="line-140"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>loop</span> <span class='hs-varid'>dirp</span> <span class='hs-varid'>b'</span>
<a name="line-141"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>f</span> <span class='hs-varid'>typ</span> <span class='hs-layout'>(</span><span class='hs-varid'>pathRelToTop</span> <span class='hs-varop'>&lt;/&gt;</span> <span class='hs-varid'>e</span><span class='hs-layout'>)</span> <span class='hs-varid'>b'</span> <span class='hs-varop'>&gt;&gt;=</span> <span class='hs-varid'>loop</span> <span class='hs-varid'>dirp</span>
<a name="line-142"></a>
<a name="line-143"></a>
<a name="line-144"></a><span class='hs-comment'>----------------------------------------------------------</span>
<a name="line-145"></a><span class='hs-comment'>-- dodgy stuff</span>
<a name="line-146"></a>
<a name="line-147"></a><a name="CDir"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>CDir</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>()</span>
<a name="line-148"></a><a name="CDirent"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>CDirent</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>()</span>
<a name="line-149"></a>
<a name="line-150"></a><a name="unpackDirStream"></a><span class='hs-comment'>-- Posix doesn't export DirStream, so to re-use that type we need to use</span>
<a name="line-151"></a><span class='hs-comment'>-- unsafeCoerce. It's just a newtype, so this is a legitimate usage.</span>
<a name="line-152"></a><span class='hs-comment'>-- ugly trick.</span>
<a name="line-153"></a><span class='hs-definition'>unpackDirStream</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DirStream</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Ptr</span> <span class='hs-conid'>CDir</span>
<a name="line-154"></a><span class='hs-definition'>unpackDirStream</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unsafeCoerce</span>
<a name="line-155"></a>
<a name="line-156"></a><a name="packDirStream"></a><span class='hs-definition'>packDirStream</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Ptr</span> <span class='hs-conid'>CDir</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DirStream</span>
<a name="line-157"></a><span class='hs-definition'>packDirStream</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unsafeCoerce</span>
<a name="line-158"></a>
<a name="line-159"></a><span class='hs-comment'>-- the __hscore_* functions are defined in the unix package. We can import them and let</span>
<a name="line-160"></a><span class='hs-comment'>-- the linker figure it out.</span>
<a name="line-161"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"__hscore_readdir"</span>
<a name="line-162"></a> <span class='hs-varid'>c_readdir</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Ptr</span> <span class='hs-conid'>CDir</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Ptr</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>CDirent</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>CInt</span>
<a name="line-163"></a>
<a name="line-164"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"__hscore_free_dirent"</span>
<a name="line-165"></a> <span class='hs-varid'>c_freeDirEnt</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Ptr</span> <span class='hs-conid'>CDirent</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-166"></a>
<a name="line-167"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"__hscore_d_name"</span>
<a name="line-168"></a> <span class='hs-varid'>c_name</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Ptr</span> <span class='hs-conid'>CDirent</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>CString</span>
<a name="line-169"></a>
<a name="line-170"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"__posixdir_d_type"</span>
<a name="line-171"></a> <span class='hs-varid'>c_type</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Ptr</span> <span class='hs-conid'>CDirent</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>DirType</span>
<a name="line-172"></a>
<a name="line-173"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-str'>"realpath"</span>
<a name="line-174"></a> <span class='hs-varid'>c_realpath</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>CString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>CString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>CString</span>
<a name="line-175"></a>
<a name="line-176"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"fdopendir"</span>
<a name="line-177"></a> <span class='hs-varid'>c_fdopendir</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>Fd</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span>
<a name="line-178"></a>
<a name="line-179"></a><span class='hs-comment'>----------------------------------------------------------</span>
<a name="line-180"></a><span class='hs-comment'>-- less dodgy but still lower-level</span>
<a name="line-181"></a>
<a name="line-182"></a>
<a name="line-183"></a><a name="readDirEnt"></a><span class='hs-definition'>readDirEnt</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DirStream</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>DirType</span><span class='hs-layout'>,</span> <span class='hs-conid'>RawFilePath</span><span class='hs-layout'>)</span>
<a name="line-184"></a><span class='hs-definition'>readDirEnt</span> <span class='hs-layout'>(</span><span class='hs-varid'>unpackDirStream</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>dirp</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-185"></a> <span class='hs-varid'>alloca</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>ptr_dEnt</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>loop</span> <span class='hs-varid'>ptr_dEnt</span>
<a name="line-186"></a> <span class='hs-keyword'>where</span>
<a name="line-187"></a> <span class='hs-varid'>loop</span> <span class='hs-varid'>ptr_dEnt</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-188"></a> <span class='hs-varid'>resetErrno</span>
<a name="line-189"></a> <span class='hs-varid'>r</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>c_readdir</span> <span class='hs-varid'>dirp</span> <span class='hs-varid'>ptr_dEnt</span>
<a name="line-190"></a> <span class='hs-keyword'>if</span> <span class='hs-layout'>(</span><span class='hs-varid'>r</span> <span class='hs-varop'>==</span> <span class='hs-num'>0</span><span class='hs-layout'>)</span>
<a name="line-191"></a> <span class='hs-keyword'>then</span> <span class='hs-keyword'>do</span>
<a name="line-192"></a> <span class='hs-varid'>dEnt</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>peek</span> <span class='hs-varid'>ptr_dEnt</span>
<a name="line-193"></a> <span class='hs-keyword'>if</span> <span class='hs-layout'>(</span><span class='hs-varid'>dEnt</span> <span class='hs-varop'>==</span> <span class='hs-varid'>nullPtr</span><span class='hs-layout'>)</span>
<a name="line-194"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>dtUnknown</span><span class='hs-layout'>,</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span><span class='hs-layout'>)</span>
<a name="line-195"></a> <span class='hs-keyword'>else</span> <span class='hs-keyword'>do</span>
<a name="line-196"></a> <span class='hs-varid'>dName</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>c_name</span> <span class='hs-varid'>dEnt</span> <span class='hs-varop'>&gt;&gt;=</span> <span class='hs-varid'>peekFilePath</span>
<a name="line-197"></a> <span class='hs-varid'>dType</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>c_type</span> <span class='hs-varid'>dEnt</span>
<a name="line-198"></a> <span class='hs-varid'>c_freeDirEnt</span> <span class='hs-varid'>dEnt</span>
<a name="line-199"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>dType</span><span class='hs-layout'>,</span> <span class='hs-varid'>dName</span><span class='hs-layout'>)</span>
<a name="line-200"></a> <span class='hs-keyword'>else</span> <span class='hs-keyword'>do</span>
<a name="line-201"></a> <span class='hs-varid'>errno</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>getErrno</span>
<a name="line-202"></a> <span class='hs-keyword'>if</span> <span class='hs-layout'>(</span><span class='hs-varid'>errno</span> <span class='hs-varop'>==</span> <span class='hs-varid'>eINTR</span><span class='hs-layout'>)</span>
<a name="line-203"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>loop</span> <span class='hs-varid'>ptr_dEnt</span>
<a name="line-204"></a> <span class='hs-keyword'>else</span> <span class='hs-keyword'>do</span>
<a name="line-205"></a> <span class='hs-keyword'>let</span> <span class='hs-layout'>(</span><span class='hs-conid'>Errno</span> <span class='hs-varid'>eo</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>errno</span>
<a name="line-206"></a> <span class='hs-keyword'>if</span> <span class='hs-layout'>(</span><span class='hs-varid'>eo</span> <span class='hs-varop'>==</span> <span class='hs-num'>0</span><span class='hs-layout'>)</span>
<a name="line-207"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>dtUnknown</span><span class='hs-layout'>,</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span><span class='hs-layout'>)</span>
<a name="line-208"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>throwErrno</span> <span class='hs-str'>"readDirEnt"</span>
<a name="line-209"></a>
<a name="line-210"></a>
<a name="line-211"></a><a name="getDirectoryContents"></a><span class='hs-comment'>-- |Gets all directory contents (not recursively).</span>
<a name="line-212"></a><span class='hs-definition'>getDirectoryContents</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>DirType</span><span class='hs-layout'>,</span> <span class='hs-conid'>RawFilePath</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-213"></a><span class='hs-definition'>getDirectoryContents</span> <span class='hs-varid'>path</span> <span class='hs-keyglyph'>=</span>
<a name="line-214"></a> <span class='hs-varid'>modifyIOError</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varop'>`ioeSetFileName`</span> <span class='hs-layout'>(</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>unpack</span> <span class='hs-varid'>path</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span>
<a name="line-215"></a> <span class='hs-layout'>(</span><span class='hs-varop'>`ioeSetLocation`</span> <span class='hs-str'>"System.Posix.Directory.Traversals.getDirectoryContents"</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span>
<a name="line-216"></a> <span class='hs-varid'>bracket</span>
<a name="line-217"></a> <span class='hs-layout'>(</span><span class='hs-conid'>PosixBS</span><span class='hs-varop'>.</span><span class='hs-varid'>openDirStream</span> <span class='hs-varid'>path</span><span class='hs-layout'>)</span>
<a name="line-218"></a> <span class='hs-conid'>PosixBS</span><span class='hs-varop'>.</span><span class='hs-varid'>closeDirStream</span>
<a name="line-219"></a> <span class='hs-sel'>_dirloop</span>
<a name="line-220"></a>
<a name="line-221"></a>
<a name="line-222"></a><a name="fdOpendir"></a><span class='hs-comment'>-- |Binding to @fdopendir(3)@.</span>
<a name="line-223"></a><span class='hs-definition'>fdOpendir</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>Fd</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>DirStream</span>
<a name="line-224"></a><span class='hs-definition'>fdOpendir</span> <span class='hs-varid'>fd</span> <span class='hs-keyglyph'>=</span>
<a name="line-225"></a> <span class='hs-varid'>packDirStream</span> <span class='hs-varop'>&lt;$&gt;</span> <span class='hs-varid'>throwErrnoIfNull</span> <span class='hs-str'>"fdOpendir"</span> <span class='hs-layout'>(</span><span class='hs-varid'>c_fdopendir</span> <span class='hs-varid'>fd</span><span class='hs-layout'>)</span>
<a name="line-226"></a>
<a name="line-227"></a>
<a name="line-228"></a><a name="getDirectoryContents'"></a><span class='hs-comment'>-- |Like `getDirectoryContents` except for a file descriptor.</span>
<a name="line-229"></a><span class='hs-comment'>--</span>
<a name="line-230"></a><span class='hs-comment'>-- To avoid complicated error checks, the file descriptor is</span>
<a name="line-231"></a><span class='hs-comment'>-- __always__ closed, even if `fdOpendir` fails. Usually, this</span>
<a name="line-232"></a><span class='hs-comment'>-- only happens on successful `fdOpendir` and after the directory</span>
<a name="line-233"></a><span class='hs-comment'>-- stream is closed. Also see the manpage of @fdopendir(3)@ for</span>
<a name="line-234"></a><span class='hs-comment'>-- more details.</span>
<a name="line-235"></a><span class='hs-definition'>getDirectoryContents'</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>Fd</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>DirType</span><span class='hs-layout'>,</span> <span class='hs-conid'>RawFilePath</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-236"></a><span class='hs-definition'>getDirectoryContents'</span> <span class='hs-varid'>fd</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-237"></a> <span class='hs-varid'>dirstream</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>fdOpendir</span> <span class='hs-varid'>fd</span> <span class='hs-varop'>`catchIOError`</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>e</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-238"></a> <span class='hs-varid'>closeFd</span> <span class='hs-varid'>fd</span>
<a name="line-239"></a> <span class='hs-varid'>ioError</span> <span class='hs-varid'>e</span>
<a name="line-240"></a> <span class='hs-comment'>-- closeDirStream closes the filedescriptor</span>
<a name="line-241"></a> <span class='hs-varid'>finally</span> <span class='hs-layout'>(</span><span class='hs-sel'>_dirloop</span> <span class='hs-varid'>dirstream</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>PosixBS</span><span class='hs-varop'>.</span><span class='hs-varid'>closeDirStream</span> <span class='hs-varid'>dirstream</span><span class='hs-layout'>)</span>
<a name="line-242"></a>
<a name="line-243"></a>
<a name="line-244"></a><span class='hs-sel'>_dirloop</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DirStream</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>DirType</span><span class='hs-layout'>,</span> <span class='hs-conid'>RawFilePath</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-245"></a><span class='hs-comment'>{-# INLINE _dirloop #-}</span>
<a name="line-246"></a><span class='hs-sel'>_dirloop</span> <span class='hs-varid'>dirp</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-247"></a> <span class='hs-varid'>t</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-sel'>_typ</span><span class='hs-layout'>,</span><span class='hs-varid'>e</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>readDirEnt</span> <span class='hs-varid'>dirp</span>
<a name="line-248"></a> <span class='hs-keyword'>if</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>e</span> <span class='hs-keyword'>then</span> <span class='hs-varid'>return</span> <span class='hs-conid'>[]</span> <span class='hs-keyword'>else</span> <span class='hs-keyword'>do</span>
<a name="line-249"></a> <span class='hs-varid'>es</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-sel'>_dirloop</span> <span class='hs-varid'>dirp</span>
<a name="line-250"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>t</span><span class='hs-conop'>:</span><span class='hs-varid'>es</span><span class='hs-layout'>)</span>
<a name="line-251"></a>
<a name="line-252"></a>
<a name="line-253"></a><a name="realpath"></a><span class='hs-comment'>-- | return the canonicalized absolute pathname</span>
<a name="line-254"></a><span class='hs-comment'>--</span>
<a name="line-255"></a><span class='hs-comment'>-- like canonicalizePath, but uses @realpath(3)@</span>
<a name="line-256"></a><span class='hs-definition'>realpath</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>RawFilePath</span>
<a name="line-257"></a><span class='hs-definition'>realpath</span> <span class='hs-varid'>inp</span> <span class='hs-keyglyph'>=</span>
<a name="line-258"></a> <span class='hs-varid'>allocaBytes</span> <span class='hs-varid'>pathMax</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>tmp</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-259"></a> <span class='hs-varid'>void</span> <span class='hs-varop'>$</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>useAsCString</span> <span class='hs-varid'>inp</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>cstr</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>throwErrnoIfNull</span> <span class='hs-str'>"realpath"</span> <span class='hs-varop'>$</span> <span class='hs-varid'>c_realpath</span> <span class='hs-varid'>cstr</span> <span class='hs-varid'>tmp</span>
<a name="line-260"></a> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>packCString</span> <span class='hs-varid'>tmp</span>
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<pre><a name="line-1"></a><span class='hs-comment'>-- |</span>
<a name="line-2"></a><span class='hs-comment'>-- Module : System.Posix.FD</span>
<a name="line-3"></a><span class='hs-comment'>-- Copyright : © 2016 Julian Ospald</span>
<a name="line-4"></a><span class='hs-comment'>-- License : BSD3</span>
<a name="line-5"></a><span class='hs-comment'>--</span>
<a name="line-6"></a><span class='hs-comment'>-- Maintainer : Julian Ospald &lt;hasufell@posteo.de&gt;</span>
<a name="line-7"></a><span class='hs-comment'>-- Stability : experimental</span>
<a name="line-8"></a><span class='hs-comment'>-- Portability : portable</span>
<a name="line-9"></a><span class='hs-comment'>--</span>
<a name="line-10"></a><span class='hs-comment'>-- Provides an alternative for `System.Posix.IO.ByteString.openFd`</span>
<a name="line-11"></a><span class='hs-comment'>-- which gives us more control on what status flags to pass to the</span>
<a name="line-12"></a><span class='hs-comment'>-- low-level @open(2)@ call, in contrast to the unix package.</span>
<a name="line-13"></a>
<a name="line-14"></a>
<a name="line-15"></a><span class='hs-comment'>{-# LANGUAGE ForeignFunctionInterface #-}</span>
<a name="line-16"></a><span class='hs-comment'>{-# LANGUAGE OverloadedStrings #-}</span>
<a name="line-17"></a><span class='hs-comment'>{-# LANGUAGE TupleSections #-}</span>
<a name="line-18"></a>
<a name="line-19"></a><span class='hs-comment'>{-# OPTIONS_GHC -Wall #-}</span>
<a name="line-20"></a>
<a name="line-21"></a>
<a name="line-22"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>FD</span> <span class='hs-layout'>(</span>
<a name="line-23"></a> <span class='hs-varid'>openFd</span>
<a name="line-24"></a><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-25"></a>
<a name="line-26"></a>
<a name="line-27"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Foreign</span><span class='hs-varop'>.</span><span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-conid'>String</span>
<a name="line-28"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Foreign</span><span class='hs-varop'>.</span><span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-conid'>Types</span>
<a name="line-29"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>Directory</span><span class='hs-varop'>.</span><span class='hs-conid'>Foreign</span>
<a name="line-30"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Posix</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>Posix</span>
<a name="line-31"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-varop'>.</span><span class='hs-conid'>FilePath</span>
<a name="line-32"></a>
<a name="line-33"></a>
<a name="line-34"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"open"</span>
<a name="line-35"></a> <span class='hs-varid'>c_open</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>CString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>CMode</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>CInt</span>
<a name="line-36"></a>
<a name="line-37"></a>
<a name="line-38"></a><a name="open_"></a><span class='hs-definition'>open_</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>CString</span>
<a name="line-39"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>OpenMode</span>
<a name="line-40"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Flags</span><span class='hs-keyglyph'>]</span>
<a name="line-41"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Maybe</span> <span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>FileMode</span>
<a name="line-42"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>Fd</span>
<a name="line-43"></a><span class='hs-definition'>open_</span> <span class='hs-varid'>str</span> <span class='hs-varid'>how</span> <span class='hs-varid'>optional_flags</span> <span class='hs-varid'>maybe_mode</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-44"></a> <span class='hs-varid'>fd</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>c_open</span> <span class='hs-varid'>str</span> <span class='hs-varid'>all_flags</span> <span class='hs-varid'>mode_w</span>
<a name="line-45"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>Fd</span> <span class='hs-varid'>fd</span><span class='hs-layout'>)</span>
<a name="line-46"></a> <span class='hs-keyword'>where</span>
<a name="line-47"></a> <span class='hs-varid'>all_flags</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unionFlags</span> <span class='hs-varop'>$</span> <span class='hs-varid'>optional_flags</span> <span class='hs-varop'>++</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>open_mode</span><span class='hs-keyglyph'>]</span> <span class='hs-varop'>++</span> <span class='hs-varid'>creat</span>
<a name="line-48"></a>
<a name="line-49"></a>
<a name="line-50"></a> <span class='hs-layout'>(</span><span class='hs-varid'>creat</span><span class='hs-layout'>,</span> <span class='hs-varid'>mode_w</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>maybe_mode</span> <span class='hs-keyword'>of</span>
<a name="line-51"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-conid'>[]</span><span class='hs-layout'>,</span><span class='hs-num'>0</span><span class='hs-layout'>)</span>
<a name="line-52"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>[</span><span class='hs-varid'>oCreat</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span>
<a name="line-53"></a>
<a name="line-54"></a> <span class='hs-varid'>open_mode</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>how</span> <span class='hs-keyword'>of</span>
<a name="line-55"></a> <span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>ReadOnly</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>oRdonly</span>
<a name="line-56"></a> <span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>WriteOnly</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>oWronly</span>
<a name="line-57"></a> <span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>ReadWrite</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>oRdwr</span>
<a name="line-58"></a>
<a name="line-59"></a>
<a name="line-60"></a><a name="openFd"></a><span class='hs-comment'>-- |Open and optionally create this file. See 'System.Posix.Files'</span>
<a name="line-61"></a><span class='hs-comment'>-- for information on how to use the 'FileMode' type.</span>
<a name="line-62"></a><span class='hs-comment'>--</span>
<a name="line-63"></a><span class='hs-comment'>-- Note that passing @Just x@ as the 4th argument triggers the</span>
<a name="line-64"></a><span class='hs-comment'>-- `oCreat` status flag, which must be set when you pass in `oExcl`</span>
<a name="line-65"></a><span class='hs-comment'>-- to the status flags. Also see the manpage for @open(2)@.</span>
<a name="line-66"></a><span class='hs-definition'>openFd</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RawFilePath</span>
<a name="line-67"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>OpenMode</span>
<a name="line-68"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Flags</span><span class='hs-keyglyph'>]</span> <span class='hs-comment'>-- ^ status flags of @open(2)@</span>
<a name="line-69"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Maybe</span> <span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>FileMode</span> <span class='hs-comment'>-- ^ @Just x@ =&gt; creates the file with the given modes, Nothing =&gt; the file must exist.</span>
<a name="line-70"></a> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>Fd</span>
<a name="line-71"></a><span class='hs-definition'>openFd</span> <span class='hs-varid'>name</span> <span class='hs-varid'>how</span> <span class='hs-varid'>optional_flags</span> <span class='hs-varid'>maybe_mode</span> <span class='hs-keyglyph'>=</span>
<a name="line-72"></a> <span class='hs-varid'>withFilePath</span> <span class='hs-varid'>name</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>str</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-73"></a> <span class='hs-varid'>throwErrnoPathIfMinus1Retry</span> <span class='hs-str'>"openFd"</span> <span class='hs-varid'>name</span> <span class='hs-varop'>$</span>
<a name="line-74"></a> <span class='hs-varid'>open_</span> <span class='hs-varid'>str</span> <span class='hs-varid'>how</span> <span class='hs-varid'>optional_flags</span> <span class='hs-varid'>maybe_mode</span>
<a name="line-75"></a>
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<pre><a name="line-1"></a><span class='hs-comment'>-- |</span>
<a name="line-2"></a><span class='hs-comment'>-- Module : System.Posix.FilePath</span>
<a name="line-3"></a><span class='hs-comment'>-- Copyright : © 2016 Julian Ospald</span>
<a name="line-4"></a><span class='hs-comment'>-- License : BSD3</span>
<a name="line-5"></a><span class='hs-comment'>--</span>
<a name="line-6"></a><span class='hs-comment'>-- Maintainer : Julian Ospald &lt;hasufell@posteo.de&gt;</span>
<a name="line-7"></a><span class='hs-comment'>-- Stability : experimental</span>
<a name="line-8"></a><span class='hs-comment'>-- Portability : portable</span>
<a name="line-9"></a><span class='hs-comment'>--</span>
<a name="line-10"></a><span class='hs-comment'>-- The equivalent of "System.FilePath" on raw (byte string) file paths.</span>
<a name="line-11"></a><span class='hs-comment'>--</span>
<a name="line-12"></a><span class='hs-comment'>-- Not all functions of "System.FilePath" are implemented yet. Feel free to contribute!</span>
<a name="line-13"></a>
<a name="line-14"></a>
<a name="line-15"></a><span class='hs-comment'>{-# LANGUAGE CPP #-}</span>
<a name="line-16"></a><span class='hs-comment'>{-# LANGUAGE TupleSections #-}</span>
<a name="line-17"></a>
<a name="line-18"></a><span class='hs-comment'>{-# OPTIONS_GHC -Wall #-}</span>
<a name="line-19"></a>
<a name="line-20"></a>
<a name="line-21"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>FilePath</span> <span class='hs-layout'>(</span>
<a name="line-22"></a>
<a name="line-23"></a> <span class='hs-comment'>-- * Separator predicates</span>
<a name="line-24"></a> <span class='hs-varid'>pathSeparator</span>
<a name="line-25"></a><span class='hs-layout'>,</span> <span class='hs-varid'>isPathSeparator</span>
<a name="line-26"></a><span class='hs-layout'>,</span> <span class='hs-varid'>searchPathSeparator</span>
<a name="line-27"></a><span class='hs-layout'>,</span> <span class='hs-varid'>isSearchPathSeparator</span>
<a name="line-28"></a><span class='hs-layout'>,</span> <span class='hs-varid'>extSeparator</span>
<a name="line-29"></a><span class='hs-layout'>,</span> <span class='hs-varid'>isExtSeparator</span>
<a name="line-30"></a>
<a name="line-31"></a> <span class='hs-comment'>-- * $PATH methods</span>
<a name="line-32"></a><span class='hs-layout'>,</span> <span class='hs-varid'>splitSearchPath</span>
<a name="line-33"></a><span class='hs-layout'>,</span> <span class='hs-varid'>getSearchPath</span>
<a name="line-34"></a>
<a name="line-35"></a> <span class='hs-comment'>-- * Extension functions</span>
<a name="line-36"></a><span class='hs-layout'>,</span> <span class='hs-varid'>splitExtension</span>
<a name="line-37"></a><span class='hs-layout'>,</span> <span class='hs-varid'>takeExtension</span>
<a name="line-38"></a><span class='hs-layout'>,</span> <span class='hs-varid'>replaceExtension</span>
<a name="line-39"></a><span class='hs-layout'>,</span> <span class='hs-varid'>dropExtension</span>
<a name="line-40"></a><span class='hs-layout'>,</span> <span class='hs-varid'>addExtension</span>
<a name="line-41"></a><span class='hs-layout'>,</span> <span class='hs-varid'>hasExtension</span>
<a name="line-42"></a><span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varop'>&lt;.&gt;</span><span class='hs-layout'>)</span>
<a name="line-43"></a><span class='hs-layout'>,</span> <span class='hs-varid'>splitExtensions</span>
<a name="line-44"></a><span class='hs-layout'>,</span> <span class='hs-varid'>dropExtensions</span>
<a name="line-45"></a><span class='hs-layout'>,</span> <span class='hs-varid'>takeExtensions</span>
<a name="line-46"></a><span class='hs-layout'>,</span> <span class='hs-varid'>stripExtension</span>
<a name="line-47"></a>
<a name="line-48"></a> <span class='hs-comment'>-- * Filename\/directory functions</span>
<a name="line-49"></a><span class='hs-layout'>,</span> <span class='hs-varid'>splitFileName</span>
<a name="line-50"></a><span class='hs-layout'>,</span> <span class='hs-varid'>takeFileName</span>
<a name="line-51"></a><span class='hs-layout'>,</span> <span class='hs-varid'>replaceFileName</span>
<a name="line-52"></a><span class='hs-layout'>,</span> <span class='hs-varid'>dropFileName</span>
<a name="line-53"></a><span class='hs-layout'>,</span> <span class='hs-varid'>takeBaseName</span>
<a name="line-54"></a><span class='hs-layout'>,</span> <span class='hs-varid'>replaceBaseName</span>
<a name="line-55"></a><span class='hs-layout'>,</span> <span class='hs-varid'>takeDirectory</span>
<a name="line-56"></a><span class='hs-layout'>,</span> <span class='hs-varid'>replaceDirectory</span>
<a name="line-57"></a><span class='hs-layout'>,</span> <span class='hs-varid'>combine</span>
<a name="line-58"></a><span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varop'>&lt;/&gt;</span><span class='hs-layout'>)</span>
<a name="line-59"></a><span class='hs-layout'>,</span> <span class='hs-varid'>splitPath</span>
<a name="line-60"></a><span class='hs-layout'>,</span> <span class='hs-varid'>joinPath</span>
<a name="line-61"></a><span class='hs-layout'>,</span> <span class='hs-varid'>splitDirectories</span>
<a name="line-62"></a>
<a name="line-63"></a> <span class='hs-comment'>-- * Trailing slash functions</span>
<a name="line-64"></a><span class='hs-layout'>,</span> <span class='hs-varid'>hasTrailingPathSeparator</span>
<a name="line-65"></a><span class='hs-layout'>,</span> <span class='hs-varid'>addTrailingPathSeparator</span>
<a name="line-66"></a><span class='hs-layout'>,</span> <span class='hs-varid'>dropTrailingPathSeparator</span>
<a name="line-67"></a>
<a name="line-68"></a> <span class='hs-comment'>-- * File name manipulations</span>
<a name="line-69"></a><span class='hs-layout'>,</span> <span class='hs-varid'>normalise</span>
<a name="line-70"></a><span class='hs-layout'>,</span> <span class='hs-varid'>makeRelative</span>
<a name="line-71"></a><span class='hs-layout'>,</span> <span class='hs-varid'>equalFilePath</span>
<a name="line-72"></a><span class='hs-layout'>,</span> <span class='hs-varid'>isRelative</span>
<a name="line-73"></a><span class='hs-layout'>,</span> <span class='hs-varid'>isAbsolute</span>
<a name="line-74"></a><span class='hs-layout'>,</span> <span class='hs-varid'>isValid</span>
<a name="line-75"></a><span class='hs-layout'>,</span> <span class='hs-varid'>makeValid</span>
<a name="line-76"></a><span class='hs-layout'>,</span> <span class='hs-varid'>isFileName</span>
<a name="line-77"></a><span class='hs-layout'>,</span> <span class='hs-varid'>hasParentDir</span>
<a name="line-78"></a><span class='hs-layout'>,</span> <span class='hs-varid'>hiddenFile</span>
<a name="line-79"></a>
<a name="line-80"></a><span class='hs-layout'>,</span> <span class='hs-keyword'>module</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-varop'>.</span><span class='hs-conid'>FilePath</span>
<a name="line-81"></a><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-82"></a>
<a name="line-83"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-layout'>(</span><span class='hs-conid'>ByteString</span><span class='hs-layout'>)</span>
<a name="line-84"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>BS</span>
<a name="line-85"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>String</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromString</span><span class='hs-layout'>)</span>
<a name="line-86"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-varop'>.</span><span class='hs-conid'>FilePath</span>
<a name="line-87"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>Env</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>PE</span>
<a name="line-88"></a>
<a name="line-89"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-varid'>isJust</span><span class='hs-layout'>)</span>
<a name="line-90"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Word8</span>
<a name="line-91"></a><span class='hs-cpp'>#if !MIN_VERSION_bytestring(0,10,8)</span>
<a name="line-92"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>List</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>L</span>
<a name="line-93"></a><span class='hs-cpp'>#endif</span>
<a name="line-94"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Arrow</span> <span class='hs-layout'>(</span><span class='hs-varid'>second</span><span class='hs-layout'>)</span>
<a name="line-95"></a>
<a name="line-96"></a><span class='hs-comment'>-- $setup</span>
<a name="line-97"></a><span class='hs-comment'>-- &gt;&gt;&gt; import Data.Char</span>
<a name="line-98"></a><span class='hs-comment'>-- &gt;&gt;&gt; import Data.Maybe</span>
<a name="line-99"></a><span class='hs-comment'>-- &gt;&gt;&gt; import Test.QuickCheck</span>
<a name="line-100"></a><span class='hs-comment'>-- &gt;&gt;&gt; import Control.Applicative</span>
<a name="line-101"></a><span class='hs-comment'>-- &gt;&gt;&gt; import qualified Data.ByteString as BS</span>
<a name="line-102"></a><span class='hs-comment'>-- &gt;&gt;&gt; instance Arbitrary ByteString where arbitrary = BS.pack &lt;$&gt; arbitrary</span>
<a name="line-103"></a><span class='hs-comment'>-- &gt;&gt;&gt; instance CoArbitrary ByteString where coarbitrary = coarbitrary . BS.unpack</span>
<a name="line-104"></a><span class='hs-comment'>--</span>
<a name="line-105"></a><span class='hs-comment'>-- &gt;&gt;&gt; let _chr :: Word8 -&gt; Char; _chr = chr . fromIntegral</span>
<a name="line-106"></a>
<a name="line-107"></a>
<a name="line-108"></a>
<a name="line-109"></a><span class='hs-comment'>------------------------</span>
<a name="line-110"></a><span class='hs-comment'>-- Separator predicates</span>
<a name="line-111"></a>
<a name="line-112"></a>
<a name="line-113"></a><a name="pathSeparator"></a><span class='hs-comment'>-- | Path separator character</span>
<a name="line-114"></a><span class='hs-definition'>pathSeparator</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Word8</span>
<a name="line-115"></a><span class='hs-definition'>pathSeparator</span> <span class='hs-keyglyph'>=</span> <span class='hs-sel'>_slash</span>
<a name="line-116"></a>
<a name="line-117"></a>
<a name="line-118"></a><a name="isPathSeparator"></a><span class='hs-comment'>-- | Check if a character is the path separator</span>
<a name="line-119"></a><span class='hs-comment'>--</span>
<a name="line-120"></a><span class='hs-comment'>-- prop&gt; \n -&gt; (_chr n == '/') == isPathSeparator n</span>
<a name="line-121"></a><span class='hs-definition'>isPathSeparator</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Word8</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Bool</span>
<a name="line-122"></a><span class='hs-definition'>isPathSeparator</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varop'>==</span> <span class='hs-varid'>pathSeparator</span><span class='hs-layout'>)</span>
<a name="line-123"></a>
<a name="line-124"></a>
<a name="line-125"></a><a name="searchPathSeparator"></a><span class='hs-comment'>-- | Search path separator</span>
<a name="line-126"></a><span class='hs-definition'>searchPathSeparator</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Word8</span>
<a name="line-127"></a><span class='hs-definition'>searchPathSeparator</span> <span class='hs-keyglyph'>=</span> <span class='hs-sel'>_colon</span>
<a name="line-128"></a>
<a name="line-129"></a>
<a name="line-130"></a><a name="isSearchPathSeparator"></a><span class='hs-comment'>-- | Check if a character is the search path separator</span>
<a name="line-131"></a><span class='hs-comment'>--</span>
<a name="line-132"></a><span class='hs-comment'>-- prop&gt; \n -&gt; (_chr n == ':') == isSearchPathSeparator n</span>
<a name="line-133"></a><span class='hs-definition'>isSearchPathSeparator</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Word8</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Bool</span>
<a name="line-134"></a><span class='hs-definition'>isSearchPathSeparator</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varop'>==</span> <span class='hs-varid'>searchPathSeparator</span><span class='hs-layout'>)</span>
<a name="line-135"></a>
<a name="line-136"></a>
<a name="line-137"></a><a name="extSeparator"></a><span class='hs-comment'>-- | File extension separator</span>
<a name="line-138"></a><span class='hs-definition'>extSeparator</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Word8</span>
<a name="line-139"></a><span class='hs-definition'>extSeparator</span> <span class='hs-keyglyph'>=</span> <span class='hs-sel'>_period</span>
<a name="line-140"></a>
<a name="line-141"></a>
<a name="line-142"></a><a name="isExtSeparator"></a><span class='hs-comment'>-- | Check if a character is the file extension separator</span>
<a name="line-143"></a><span class='hs-comment'>--</span>
<a name="line-144"></a><span class='hs-comment'>-- prop&gt; \n -&gt; (_chr n == '.') == isExtSeparator n</span>
<a name="line-145"></a><span class='hs-definition'>isExtSeparator</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Word8</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Bool</span>
<a name="line-146"></a><span class='hs-definition'>isExtSeparator</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varop'>==</span> <span class='hs-varid'>extSeparator</span><span class='hs-layout'>)</span>
<a name="line-147"></a>
<a name="line-148"></a>
<a name="line-149"></a>
<a name="line-150"></a><span class='hs-comment'>------------------------</span>
<a name="line-151"></a><span class='hs-comment'>-- $PATH methods</span>
<a name="line-152"></a>
<a name="line-153"></a>
<a name="line-154"></a><a name="splitSearchPath"></a><span class='hs-comment'>-- | Take a ByteString, split it on the 'searchPathSeparator'.</span>
<a name="line-155"></a><span class='hs-comment'>-- Blank items are converted to @.@.</span>
<a name="line-156"></a><span class='hs-comment'>--</span>
<a name="line-157"></a><span class='hs-comment'>-- Follows the recommendations in</span>
<a name="line-158"></a><span class='hs-comment'>-- &lt;<a href="http://www.opengroup.org/onlinepubs/009695399/basedefs/xbd_chap08.html">http://www.opengroup.org/onlinepubs/009695399/basedefs/xbd_chap08.html</a>&gt;</span>
<a name="line-159"></a><span class='hs-comment'>--</span>
<a name="line-160"></a><span class='hs-comment'>-- &gt;&gt;&gt; splitSearchPath "File1:File2:File3"</span>
<a name="line-161"></a><span class='hs-comment'>-- ["File1","File2","File3"]</span>
<a name="line-162"></a><span class='hs-comment'>-- &gt;&gt;&gt; splitSearchPath "File1::File2:File3"</span>
<a name="line-163"></a><span class='hs-comment'>-- ["File1",".","File2","File3"]</span>
<a name="line-164"></a><span class='hs-comment'>-- &gt;&gt;&gt; splitSearchPath ""</span>
<a name="line-165"></a><span class='hs-comment'>-- ["."]</span>
<a name="line-166"></a><span class='hs-definition'>splitSearchPath</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>RawFilePath</span><span class='hs-keyglyph'>]</span>
<a name="line-167"></a><span class='hs-definition'>splitSearchPath</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>f</span>
<a name="line-168"></a> <span class='hs-keyword'>where</span>
<a name="line-169"></a> <span class='hs-varid'>f</span> <span class='hs-varid'>bs</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>let</span> <span class='hs-layout'>(</span><span class='hs-varid'>pre</span><span class='hs-layout'>,</span> <span class='hs-varid'>post</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>break</span> <span class='hs-varid'>isSearchPathSeparator</span> <span class='hs-varid'>bs</span>
<a name="line-170"></a> <span class='hs-keyword'>in</span> <span class='hs-keyword'>if</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>post</span>
<a name="line-171"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>g</span> <span class='hs-varid'>pre</span>
<a name="line-172"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>g</span> <span class='hs-varid'>pre</span> <span class='hs-varop'>++</span> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>tail</span> <span class='hs-varid'>post</span><span class='hs-layout'>)</span>
<a name="line-173"></a> <span class='hs-varid'>g</span> <span class='hs-varid'>x</span>
<a name="line-174"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-sel'>_period</span><span class='hs-keyglyph'>]</span>
<a name="line-175"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>x</span><span class='hs-keyglyph'>]</span>
<a name="line-176"></a>
<a name="line-177"></a>
<a name="line-178"></a><a name="getSearchPath"></a><span class='hs-comment'>-- | Get a list of 'RawFilePath's in the $PATH variable.</span>
<a name="line-179"></a><span class='hs-definition'>getSearchPath</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>IO</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>RawFilePath</span><span class='hs-keyglyph'>]</span>
<a name="line-180"></a><span class='hs-definition'>getSearchPath</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fmap</span> <span class='hs-layout'>(</span><span class='hs-varid'>maybe</span> <span class='hs-conid'>[]</span> <span class='hs-varid'>splitSearchPath</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>PE</span><span class='hs-varop'>.</span><span class='hs-varid'>getEnv</span> <span class='hs-varop'>$</span> <span class='hs-varid'>fromString</span> <span class='hs-str'>"PATH"</span><span class='hs-layout'>)</span>
<a name="line-181"></a>
<a name="line-182"></a>
<a name="line-183"></a>
<a name="line-184"></a><span class='hs-comment'>------------------------</span>
<a name="line-185"></a><span class='hs-comment'>-- Extension functions</span>
<a name="line-186"></a>
<a name="line-187"></a><a name="splitExtension"></a><span class='hs-comment'>-- | Split a 'RawFilePath' into a path+filename and extension</span>
<a name="line-188"></a><span class='hs-comment'>--</span>
<a name="line-189"></a><span class='hs-comment'>-- &gt;&gt;&gt; splitExtension "file.exe"</span>
<a name="line-190"></a><span class='hs-comment'>-- ("file",".exe")</span>
<a name="line-191"></a><span class='hs-comment'>-- &gt;&gt;&gt; splitExtension "file"</span>
<a name="line-192"></a><span class='hs-comment'>-- ("file","")</span>
<a name="line-193"></a><span class='hs-comment'>-- &gt;&gt;&gt; splitExtension "/path/file.tar.gz"</span>
<a name="line-194"></a><span class='hs-comment'>-- ("/path/file.tar",".gz")</span>
<a name="line-195"></a><span class='hs-comment'>--</span>
<a name="line-196"></a><span class='hs-comment'>-- prop&gt; \path -&gt; uncurry (BS.append) (splitExtension path) == path</span>
<a name="line-197"></a><span class='hs-definition'>splitExtension</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-conid'>RawFilePath</span><span class='hs-layout'>,</span> <span class='hs-conid'>ByteString</span><span class='hs-layout'>)</span>
<a name="line-198"></a><span class='hs-definition'>splitExtension</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>basename</span>
<a name="line-199"></a> <span class='hs-keyword'>then</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-layout'>,</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span><span class='hs-layout'>)</span>
<a name="line-200"></a> <span class='hs-keyword'>else</span> <span class='hs-layout'>(</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>append</span> <span class='hs-varid'>path</span> <span class='hs-layout'>(</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>init</span> <span class='hs-varid'>basename</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>cons</span> <span class='hs-varid'>extSeparator</span> <span class='hs-varid'>fileExt</span><span class='hs-layout'>)</span>
<a name="line-201"></a> <span class='hs-keyword'>where</span>
<a name="line-202"></a> <span class='hs-layout'>(</span><span class='hs-varid'>path</span><span class='hs-layout'>,</span><span class='hs-varid'>file</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>splitFileNameRaw</span> <span class='hs-varid'>x</span>
<a name="line-203"></a> <span class='hs-layout'>(</span><span class='hs-varid'>basename</span><span class='hs-layout'>,</span><span class='hs-varid'>fileExt</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>breakEnd</span> <span class='hs-varid'>isExtSeparator</span> <span class='hs-varid'>file</span>
<a name="line-204"></a>
<a name="line-205"></a>
<a name="line-206"></a><a name="takeExtension"></a><span class='hs-comment'>-- | Get the final extension from a 'RawFilePath'</span>
<a name="line-207"></a><span class='hs-comment'>--</span>
<a name="line-208"></a><span class='hs-comment'>-- &gt;&gt;&gt; takeExtension "file.exe"</span>
<a name="line-209"></a><span class='hs-comment'>-- ".exe"</span>
<a name="line-210"></a><span class='hs-comment'>-- &gt;&gt;&gt; takeExtension "file"</span>
<a name="line-211"></a><span class='hs-comment'>-- ""</span>
<a name="line-212"></a><span class='hs-comment'>-- &gt;&gt;&gt; takeExtension "/path/file.tar.gz"</span>
<a name="line-213"></a><span class='hs-comment'>-- ".gz"</span>
<a name="line-214"></a><span class='hs-definition'>takeExtension</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ByteString</span>
<a name="line-215"></a><span class='hs-definition'>takeExtension</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>snd</span> <span class='hs-varop'>.</span> <span class='hs-varid'>splitExtension</span>
<a name="line-216"></a>
<a name="line-217"></a>
<a name="line-218"></a><a name="replaceExtension"></a><span class='hs-comment'>-- | Change a file's extension</span>
<a name="line-219"></a><span class='hs-comment'>--</span>
<a name="line-220"></a><span class='hs-comment'>-- prop&gt; \path -&gt; let ext = takeExtension path in replaceExtension path ext == path</span>
<a name="line-221"></a><span class='hs-definition'>replaceExtension</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>RawFilePath</span>
<a name="line-222"></a><span class='hs-definition'>replaceExtension</span> <span class='hs-varid'>path</span> <span class='hs-varid'>ext</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>dropExtension</span> <span class='hs-varid'>path</span> <span class='hs-varop'>&lt;.&gt;</span> <span class='hs-varid'>ext</span>
<a name="line-223"></a>
<a name="line-224"></a>
<a name="line-225"></a><a name="dropExtension"></a><span class='hs-comment'>-- | Drop the final extension from a 'RawFilePath'</span>
<a name="line-226"></a><span class='hs-comment'>--</span>
<a name="line-227"></a><span class='hs-comment'>-- &gt;&gt;&gt; dropExtension "file.exe"</span>
<a name="line-228"></a><span class='hs-comment'>-- "file"</span>
<a name="line-229"></a><span class='hs-comment'>-- &gt;&gt;&gt; dropExtension "file"</span>
<a name="line-230"></a><span class='hs-comment'>-- "file"</span>
<a name="line-231"></a><span class='hs-comment'>-- &gt;&gt;&gt; dropExtension "/path/file.tar.gz"</span>
<a name="line-232"></a><span class='hs-comment'>-- "/path/file.tar"</span>
<a name="line-233"></a><span class='hs-definition'>dropExtension</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>RawFilePath</span>
<a name="line-234"></a><span class='hs-definition'>dropExtension</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fst</span> <span class='hs-varop'>.</span> <span class='hs-varid'>splitExtension</span>
<a name="line-235"></a>
<a name="line-236"></a>
<a name="line-237"></a><a name="addExtension"></a><span class='hs-comment'>-- | Add an extension to a 'RawFilePath'</span>
<a name="line-238"></a><span class='hs-comment'>--</span>
<a name="line-239"></a><span class='hs-comment'>-- &gt;&gt;&gt; addExtension "file" ".exe"</span>
<a name="line-240"></a><span class='hs-comment'>-- "file.exe"</span>
<a name="line-241"></a><span class='hs-comment'>-- &gt;&gt;&gt; addExtension "file.tar" ".gz"</span>
<a name="line-242"></a><span class='hs-comment'>-- "file.tar.gz"</span>
<a name="line-243"></a><span class='hs-comment'>-- &gt;&gt;&gt; addExtension "/path/" ".ext"</span>
<a name="line-244"></a><span class='hs-comment'>-- "/path/.ext"</span>
<a name="line-245"></a><span class='hs-definition'>addExtension</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>RawFilePath</span>
<a name="line-246"></a><span class='hs-definition'>addExtension</span> <span class='hs-varid'>file</span> <span class='hs-varid'>ext</span>
<a name="line-247"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>ext</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>file</span>
<a name="line-248"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isExtSeparator</span> <span class='hs-layout'>(</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>head</span> <span class='hs-varid'>ext</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>append</span> <span class='hs-varid'>file</span> <span class='hs-varid'>ext</span>
<a name="line-249"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>intercalate</span> <span class='hs-layout'>(</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-varid'>extSeparator</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>file</span><span class='hs-layout'>,</span> <span class='hs-varid'>ext</span><span class='hs-keyglyph'>]</span>
<a name="line-250"></a>
<a name="line-251"></a>
<a name="line-252"></a><a name="hasExtension"></a><span class='hs-comment'>-- | Check if a 'RawFilePath' has an extension</span>
<a name="line-253"></a><span class='hs-comment'>--</span>
<a name="line-254"></a><span class='hs-comment'>-- &gt;&gt;&gt; hasExtension "file"</span>
<a name="line-255"></a><span class='hs-comment'>-- False</span>
<a name="line-256"></a><span class='hs-comment'>-- &gt;&gt;&gt; hasExtension "file.tar"</span>
<a name="line-257"></a><span class='hs-comment'>-- True</span>
<a name="line-258"></a><span class='hs-comment'>-- &gt;&gt;&gt; hasExtension "/path.part1/"</span>
<a name="line-259"></a><span class='hs-comment'>-- False</span>
<a name="line-260"></a><span class='hs-definition'>hasExtension</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Bool</span>
<a name="line-261"></a><span class='hs-definition'>hasExtension</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>isJust</span> <span class='hs-varop'>.</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>elemIndex</span> <span class='hs-varid'>extSeparator</span> <span class='hs-varop'>.</span> <span class='hs-varid'>takeFileName</span>
<a name="line-262"></a>
<a name="line-263"></a>
<a name="line-264"></a><a name="%3c.%3e"></a><span class='hs-comment'>-- | Operator version of 'addExtension'</span>
<a name="line-265"></a><span class='hs-layout'>(</span><span class='hs-varop'>&lt;.&gt;</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>RawFilePath</span>
<a name="line-266"></a><span class='hs-layout'>(</span><span class='hs-varop'>&lt;.&gt;</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>addExtension</span>
<a name="line-267"></a>
<a name="line-268"></a>
<a name="line-269"></a><a name="splitExtensions"></a><span class='hs-comment'>-- | Split a 'RawFilePath' on the first extension.</span>
<a name="line-270"></a><span class='hs-comment'>--</span>
<a name="line-271"></a><span class='hs-comment'>-- &gt;&gt;&gt; splitExtensions "/path/file.tar.gz"</span>
<a name="line-272"></a><span class='hs-comment'>-- ("/path/file",".tar.gz")</span>
<a name="line-273"></a><span class='hs-comment'>--</span>
<a name="line-274"></a><span class='hs-comment'>-- prop&gt; \path -&gt; uncurry addExtension (splitExtensions path) == path</span>
<a name="line-275"></a><span class='hs-definition'>splitExtensions</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-conid'>RawFilePath</span><span class='hs-layout'>,</span> <span class='hs-conid'>ByteString</span><span class='hs-layout'>)</span>
<a name="line-276"></a><span class='hs-definition'>splitExtensions</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>basename</span>
<a name="line-277"></a> <span class='hs-keyword'>then</span> <span class='hs-layout'>(</span><span class='hs-varid'>path</span><span class='hs-layout'>,</span><span class='hs-varid'>fileExt</span><span class='hs-layout'>)</span>
<a name="line-278"></a> <span class='hs-keyword'>else</span> <span class='hs-layout'>(</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>append</span> <span class='hs-varid'>path</span> <span class='hs-varid'>basename</span><span class='hs-layout'>,</span><span class='hs-varid'>fileExt</span><span class='hs-layout'>)</span>
<a name="line-279"></a> <span class='hs-keyword'>where</span>
<a name="line-280"></a> <span class='hs-layout'>(</span><span class='hs-varid'>path</span><span class='hs-layout'>,</span><span class='hs-varid'>file</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>splitFileNameRaw</span> <span class='hs-varid'>x</span>
<a name="line-281"></a> <span class='hs-layout'>(</span><span class='hs-varid'>basename</span><span class='hs-layout'>,</span><span class='hs-varid'>fileExt</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>break</span> <span class='hs-varid'>isExtSeparator</span> <span class='hs-varid'>file</span>
<a name="line-282"></a>
<a name="line-283"></a>
<a name="line-284"></a><a name="dropExtensions"></a><span class='hs-comment'>-- | Remove all extensions from a 'RawFilePath'</span>
<a name="line-285"></a><span class='hs-comment'>--</span>
<a name="line-286"></a><span class='hs-comment'>-- &gt;&gt;&gt; dropExtensions "/path/file.tar.gz"</span>
<a name="line-287"></a><span class='hs-comment'>-- "/path/file"</span>
<a name="line-288"></a><span class='hs-definition'>dropExtensions</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>RawFilePath</span>
<a name="line-289"></a><span class='hs-definition'>dropExtensions</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fst</span> <span class='hs-varop'>.</span> <span class='hs-varid'>splitExtensions</span>
<a name="line-290"></a>
<a name="line-291"></a>
<a name="line-292"></a><a name="takeExtensions"></a><span class='hs-comment'>-- | Take all extensions from a 'RawFilePath'</span>
<a name="line-293"></a><span class='hs-comment'>--</span>
<a name="line-294"></a><span class='hs-comment'>-- &gt;&gt;&gt; takeExtensions "/path/file.tar.gz"</span>
<a name="line-295"></a><span class='hs-comment'>-- ".tar.gz"</span>
<a name="line-296"></a><span class='hs-definition'>takeExtensions</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ByteString</span>
<a name="line-297"></a><span class='hs-definition'>takeExtensions</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>snd</span> <span class='hs-varop'>.</span> <span class='hs-varid'>splitExtensions</span>
<a name="line-298"></a>
<a name="line-299"></a>
<a name="line-300"></a><a name="stripExtension"></a><span class='hs-comment'>-- | Drop the given extension from a FilePath, and the @\".\"@ preceding it.</span>
<a name="line-301"></a><span class='hs-comment'>-- Returns 'Nothing' if the FilePath does not have the given extension, or</span>
<a name="line-302"></a><span class='hs-comment'>-- 'Just' and the part before the extension if it does.</span>
<a name="line-303"></a><span class='hs-comment'>--</span>
<a name="line-304"></a><span class='hs-comment'>-- This function can be more predictable than 'dropExtensions',</span>
<a name="line-305"></a><span class='hs-comment'>-- especially if the filename might itself contain @.@ characters.</span>
<a name="line-306"></a><span class='hs-comment'>--</span>
<a name="line-307"></a><span class='hs-comment'>-- &gt;&gt;&gt; stripExtension "hs.o" "foo.x.hs.o"</span>
<a name="line-308"></a><span class='hs-comment'>-- Just "foo.x"</span>
<a name="line-309"></a><span class='hs-comment'>-- &gt;&gt;&gt; stripExtension "hi.o" "foo.x.hs.o"</span>
<a name="line-310"></a><span class='hs-comment'>-- Nothing</span>
<a name="line-311"></a><span class='hs-comment'>-- &gt;&gt;&gt; stripExtension ".c.d" "a.b.c.d"</span>
<a name="line-312"></a><span class='hs-comment'>-- Just "a.b"</span>
<a name="line-313"></a><span class='hs-comment'>-- &gt;&gt;&gt; stripExtension ".c.d" "a.b..c.d"</span>
<a name="line-314"></a><span class='hs-comment'>-- Just "a.b."</span>
<a name="line-315"></a><span class='hs-comment'>-- &gt;&gt;&gt; stripExtension "baz" "foo.bar"</span>
<a name="line-316"></a><span class='hs-comment'>-- Nothing</span>
<a name="line-317"></a><span class='hs-comment'>-- &gt;&gt;&gt; stripExtension "bar" "foobar"</span>
<a name="line-318"></a><span class='hs-comment'>-- Nothing</span>
<a name="line-319"></a><span class='hs-comment'>--</span>
<a name="line-320"></a><span class='hs-comment'>-- prop&gt; \path -&gt; stripExtension "" path == Just path</span>
<a name="line-321"></a><span class='hs-comment'>-- prop&gt; \path -&gt; dropExtension path == fromJust (stripExtension (takeExtension path) path)</span>
<a name="line-322"></a><span class='hs-comment'>-- prop&gt; \path -&gt; dropExtensions path == fromJust (stripExtension (takeExtensions path) path)</span>
<a name="line-323"></a><span class='hs-definition'>stripExtension</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Maybe</span> <span class='hs-conid'>RawFilePath</span>
<a name="line-324"></a><span class='hs-definition'>stripExtension</span> <span class='hs-varid'>bs</span> <span class='hs-varid'>path</span>
<a name="line-325"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>bs</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>path</span>
<a name="line-326"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>stripSuffix'</span> <span class='hs-varid'>dotExt</span> <span class='hs-varid'>path</span>
<a name="line-327"></a> <span class='hs-keyword'>where</span>
<a name="line-328"></a> <span class='hs-varid'>dotExt</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>isExtSeparator</span> <span class='hs-varop'>$</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>head</span> <span class='hs-varid'>bs</span>
<a name="line-329"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>bs</span>
<a name="line-330"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>extSeparator</span> <span class='hs-varop'>`</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>cons</span><span class='hs-varop'>`</span> <span class='hs-varid'>bs</span>
<a name="line-331"></a><span class='hs-cpp'>#if MIN_VERSION_bytestring(0,10,8)</span>
<a name="line-332"></a> <span class='hs-varid'>stripSuffix'</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>stripSuffix</span>
<a name="line-333"></a><span class='hs-cpp'>#else</span>
<a name="line-334"></a> <span class='hs-varid'>stripSuffix'</span> <span class='hs-varid'>xs</span> <span class='hs-varid'>ys</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fmap</span> <span class='hs-layout'>(</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-varop'>.</span> <span class='hs-varid'>reverse</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-conid'>L</span><span class='hs-varop'>.</span><span class='hs-varid'>stripPrefix</span> <span class='hs-layout'>(</span><span class='hs-varid'>reverse</span> <span class='hs-varop'>$</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>unpack</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>reverse</span> <span class='hs-varop'>$</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>unpack</span> <span class='hs-varid'>ys</span><span class='hs-layout'>)</span>
<a name="line-335"></a><span class='hs-cpp'>#endif</span>
<a name="line-336"></a>
<a name="line-337"></a>
<a name="line-338"></a><span class='hs-comment'>------------------------</span>
<a name="line-339"></a><span class='hs-comment'>-- Filename/directory functions</span>
<a name="line-340"></a>
<a name="line-341"></a>
<a name="line-342"></a><a name="splitFileName"></a><span class='hs-comment'>-- | Split a 'RawFilePath' into (path,file). 'combine' is the inverse</span>
<a name="line-343"></a><span class='hs-comment'>--</span>
<a name="line-344"></a><span class='hs-comment'>-- &gt;&gt;&gt; splitFileName "path/file.txt"</span>
<a name="line-345"></a><span class='hs-comment'>-- ("path/","file.txt")</span>
<a name="line-346"></a><span class='hs-comment'>-- &gt;&gt;&gt; splitFileName "path/"</span>
<a name="line-347"></a><span class='hs-comment'>-- ("path/","")</span>
<a name="line-348"></a><span class='hs-comment'>-- &gt;&gt;&gt; splitFileName "file.txt"</span>
<a name="line-349"></a><span class='hs-comment'>-- ("./","file.txt")</span>
<a name="line-350"></a><span class='hs-comment'>--</span>
<a name="line-351"></a><span class='hs-comment'>-- prop&gt; \path -&gt; uncurry combine (splitFileName path) == path || fst (splitFileName path) == "./"</span>
<a name="line-352"></a><span class='hs-definition'>splitFileName</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-conid'>RawFilePath</span><span class='hs-layout'>,</span> <span class='hs-conid'>RawFilePath</span><span class='hs-layout'>)</span>
<a name="line-353"></a><span class='hs-definition'>splitFileName</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>path</span>
<a name="line-354"></a> <span class='hs-keyword'>then</span> <span class='hs-layout'>(</span><span class='hs-varid'>dotSlash</span><span class='hs-layout'>,</span> <span class='hs-varid'>file</span><span class='hs-layout'>)</span>
<a name="line-355"></a> <span class='hs-keyword'>else</span> <span class='hs-layout'>(</span><span class='hs-varid'>path</span><span class='hs-layout'>,</span><span class='hs-varid'>file</span><span class='hs-layout'>)</span>
<a name="line-356"></a> <span class='hs-keyword'>where</span>
<a name="line-357"></a> <span class='hs-layout'>(</span><span class='hs-varid'>path</span><span class='hs-layout'>,</span><span class='hs-varid'>file</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>splitFileNameRaw</span> <span class='hs-varid'>x</span>
<a name="line-358"></a> <span class='hs-varid'>dotSlash</span> <span class='hs-keyglyph'>=</span> <span class='hs-sel'>_period</span> <span class='hs-varop'>`</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>cons</span><span class='hs-varop'>`</span> <span class='hs-layout'>(</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-varid'>pathSeparator</span><span class='hs-layout'>)</span>
<a name="line-359"></a>
<a name="line-360"></a>
<a name="line-361"></a><a name="takeFileName"></a><span class='hs-comment'>-- | Get the file name</span>
<a name="line-362"></a><span class='hs-comment'>--</span>
<a name="line-363"></a><span class='hs-comment'>-- &gt;&gt;&gt; takeFileName "path/file.txt"</span>
<a name="line-364"></a><span class='hs-comment'>-- "file.txt"</span>
<a name="line-365"></a><span class='hs-comment'>-- &gt;&gt;&gt; takeFileName "path/"</span>
<a name="line-366"></a><span class='hs-comment'>-- ""</span>
<a name="line-367"></a><span class='hs-definition'>takeFileName</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>RawFilePath</span>
<a name="line-368"></a><span class='hs-definition'>takeFileName</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>snd</span> <span class='hs-varop'>.</span> <span class='hs-varid'>splitFileName</span>
<a name="line-369"></a>
<a name="line-370"></a>
<a name="line-371"></a><a name="replaceFileName"></a><span class='hs-comment'>-- | Change the file name</span>
<a name="line-372"></a><span class='hs-comment'>--</span>
<a name="line-373"></a><span class='hs-comment'>-- prop&gt; \path -&gt; replaceFileName path (takeFileName path) == path</span>
<a name="line-374"></a><span class='hs-definition'>replaceFileName</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>RawFilePath</span>
<a name="line-375"></a><span class='hs-definition'>replaceFileName</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fst</span> <span class='hs-layout'>(</span><span class='hs-varid'>splitFileNameRaw</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-varop'>&lt;/&gt;</span> <span class='hs-varid'>y</span>
<a name="line-376"></a>
<a name="line-377"></a>
<a name="line-378"></a><a name="dropFileName"></a><span class='hs-comment'>-- | Drop the file name</span>
<a name="line-379"></a><span class='hs-comment'>--</span>
<a name="line-380"></a><span class='hs-comment'>-- &gt;&gt;&gt; dropFileName "path/file.txt"</span>
<a name="line-381"></a><span class='hs-comment'>-- "path/"</span>
<a name="line-382"></a><span class='hs-comment'>-- &gt;&gt;&gt; dropFileName "file.txt"</span>
<a name="line-383"></a><span class='hs-comment'>-- "./"</span>
<a name="line-384"></a><span class='hs-definition'>dropFileName</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>RawFilePath</span>
<a name="line-385"></a><span class='hs-definition'>dropFileName</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fst</span> <span class='hs-varop'>.</span> <span class='hs-varid'>splitFileName</span>
<a name="line-386"></a>
<a name="line-387"></a>
<a name="line-388"></a><a name="takeBaseName"></a><span class='hs-comment'>-- | Get the file name, without a trailing extension</span>
<a name="line-389"></a><span class='hs-comment'>--</span>
<a name="line-390"></a><span class='hs-comment'>-- &gt;&gt;&gt; takeBaseName "path/file.tar.gz"</span>
<a name="line-391"></a><span class='hs-comment'>-- "file.tar"</span>
<a name="line-392"></a><span class='hs-comment'>-- &gt;&gt;&gt; takeBaseName ""</span>
<a name="line-393"></a><span class='hs-comment'>-- ""</span>
<a name="line-394"></a><span class='hs-definition'>takeBaseName</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ByteString</span>
<a name="line-395"></a><span class='hs-definition'>takeBaseName</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>dropExtension</span> <span class='hs-varop'>.</span> <span class='hs-varid'>takeFileName</span>
<a name="line-396"></a>
<a name="line-397"></a>
<a name="line-398"></a><a name="replaceBaseName"></a><span class='hs-comment'>-- | Change the base name</span>
<a name="line-399"></a><span class='hs-comment'>--</span>
<a name="line-400"></a><span class='hs-comment'>-- &gt;&gt;&gt; replaceBaseName "path/file.tar.gz" "bob"</span>
<a name="line-401"></a><span class='hs-comment'>-- "path/bob.gz"</span>
<a name="line-402"></a><span class='hs-comment'>--</span>
<a name="line-403"></a><span class='hs-comment'>-- prop&gt; \path -&gt; replaceBaseName path (takeBaseName path) == path</span>
<a name="line-404"></a><span class='hs-definition'>replaceBaseName</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>RawFilePath</span>
<a name="line-405"></a><span class='hs-definition'>replaceBaseName</span> <span class='hs-varid'>path</span> <span class='hs-varid'>name</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>combineRaw</span> <span class='hs-varid'>dir</span> <span class='hs-layout'>(</span><span class='hs-varid'>name</span> <span class='hs-varop'>&lt;.&gt;</span> <span class='hs-varid'>ext</span><span class='hs-layout'>)</span>
<a name="line-406"></a> <span class='hs-keyword'>where</span>
<a name="line-407"></a> <span class='hs-layout'>(</span><span class='hs-varid'>dir</span><span class='hs-layout'>,</span><span class='hs-varid'>file</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>splitFileNameRaw</span> <span class='hs-varid'>path</span>
<a name="line-408"></a> <span class='hs-varid'>ext</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>takeExtension</span> <span class='hs-varid'>file</span>
<a name="line-409"></a>
<a name="line-410"></a>
<a name="line-411"></a><a name="takeDirectory"></a><span class='hs-comment'>-- | Get the directory, moving up one level if it's already a directory</span>
<a name="line-412"></a><span class='hs-comment'>--</span>
<a name="line-413"></a><span class='hs-comment'>-- &gt;&gt;&gt; takeDirectory "path/file.txt"</span>
<a name="line-414"></a><span class='hs-comment'>-- "path"</span>
<a name="line-415"></a><span class='hs-comment'>-- &gt;&gt;&gt; takeDirectory "file"</span>
<a name="line-416"></a><span class='hs-comment'>-- "."</span>
<a name="line-417"></a><span class='hs-comment'>-- &gt;&gt;&gt; takeDirectory "/path/to/"</span>
<a name="line-418"></a><span class='hs-comment'>-- "/path/to"</span>
<a name="line-419"></a><span class='hs-comment'>-- &gt;&gt;&gt; takeDirectory "/path/to"</span>
<a name="line-420"></a><span class='hs-comment'>-- "/path"</span>
<a name="line-421"></a><span class='hs-definition'>takeDirectory</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>RawFilePath</span>
<a name="line-422"></a><span class='hs-definition'>takeDirectory</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-conid'>()</span> <span class='hs-keyword'>of</span>
<a name="line-423"></a> <span class='hs-conid'>()</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-varid'>pathSeparator</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>x</span>
<a name="line-424"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>res</span> <span class='hs-varop'>&amp;&amp;</span> <span class='hs-varid'>not</span> <span class='hs-layout'>(</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>file</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>file</span>
<a name="line-425"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>res</span>
<a name="line-426"></a> <span class='hs-keyword'>where</span>
<a name="line-427"></a> <span class='hs-varid'>res</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fst</span> <span class='hs-varop'>$</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>spanEnd</span> <span class='hs-varid'>isPathSeparator</span> <span class='hs-varid'>file</span>
<a name="line-428"></a> <span class='hs-varid'>file</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>dropFileName</span> <span class='hs-varid'>x</span>
<a name="line-429"></a>
<a name="line-430"></a>
<a name="line-431"></a><a name="replaceDirectory"></a><span class='hs-comment'>-- | Change the directory component of a 'RawFilePath'</span>
<a name="line-432"></a><span class='hs-comment'>--</span>
<a name="line-433"></a><span class='hs-comment'>-- prop&gt; \path -&gt; replaceDirectory path (takeDirectory path) `equalFilePath` path || takeDirectory path == "."</span>
<a name="line-434"></a><span class='hs-definition'>replaceDirectory</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>RawFilePath</span>
<a name="line-435"></a><span class='hs-definition'>replaceDirectory</span> <span class='hs-varid'>file</span> <span class='hs-varid'>dir</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>combineRaw</span> <span class='hs-varid'>dir</span> <span class='hs-layout'>(</span><span class='hs-varid'>takeFileName</span> <span class='hs-varid'>file</span><span class='hs-layout'>)</span>
<a name="line-436"></a>
<a name="line-437"></a>
<a name="line-438"></a><a name="combine"></a><span class='hs-comment'>-- | Join two paths together</span>
<a name="line-439"></a><span class='hs-comment'>--</span>
<a name="line-440"></a><span class='hs-comment'>-- &gt;&gt;&gt; combine "/" "file"</span>
<a name="line-441"></a><span class='hs-comment'>-- "/file"</span>
<a name="line-442"></a><span class='hs-comment'>-- &gt;&gt;&gt; combine "/path/to" "file"</span>
<a name="line-443"></a><span class='hs-comment'>-- "/path/to/file"</span>
<a name="line-444"></a><span class='hs-comment'>-- &gt;&gt;&gt; combine "file" "/absolute/path"</span>
<a name="line-445"></a><span class='hs-comment'>-- "/absolute/path"</span>
<a name="line-446"></a><span class='hs-definition'>combine</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>RawFilePath</span>
<a name="line-447"></a><span class='hs-definition'>combine</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>not</span> <span class='hs-layout'>(</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-varop'>&amp;&amp;</span> <span class='hs-varid'>isPathSeparator</span> <span class='hs-layout'>(</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>head</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>b</span>
<a name="line-448"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>combineRaw</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span>
<a name="line-449"></a>
<a name="line-450"></a>
<a name="line-451"></a><a name="%3c/%3e"></a><span class='hs-comment'>-- | Operator version of combine</span>
<a name="line-452"></a><span class='hs-layout'>(</span><span class='hs-varop'>&lt;/&gt;</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>RawFilePath</span>
<a name="line-453"></a><span class='hs-layout'>(</span><span class='hs-varop'>&lt;/&gt;</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>combine</span>
<a name="line-454"></a>
<a name="line-455"></a><a name="splitPath"></a><span class='hs-comment'>-- | Split a path into a list of components:</span>
<a name="line-456"></a><span class='hs-comment'>--</span>
<a name="line-457"></a><span class='hs-comment'>-- &gt;&gt;&gt; splitPath "/path/to/file.txt"</span>
<a name="line-458"></a><span class='hs-comment'>-- ["/","path/","to/","file.txt"]</span>
<a name="line-459"></a><span class='hs-comment'>--</span>
<a name="line-460"></a><span class='hs-comment'>-- prop&gt; \path -&gt; BS.concat (splitPath path) == path</span>
<a name="line-461"></a><span class='hs-definition'>splitPath</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>RawFilePath</span><span class='hs-keyglyph'>]</span>
<a name="line-462"></a><span class='hs-definition'>splitPath</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>splitter</span>
<a name="line-463"></a> <span class='hs-keyword'>where</span>
<a name="line-464"></a> <span class='hs-varid'>splitter</span> <span class='hs-varid'>x</span>
<a name="line-465"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>[]</span>
<a name="line-466"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>elemIndex</span> <span class='hs-varid'>pathSeparator</span> <span class='hs-varid'>x</span> <span class='hs-keyword'>of</span>
<a name="line-467"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>x</span><span class='hs-keyglyph'>]</span>
<a name="line-468"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>ix</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>case</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>findIndex</span> <span class='hs-layout'>(</span><span class='hs-varid'>not</span> <span class='hs-varop'>.</span> <span class='hs-varid'>isPathSeparator</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>drop</span> <span class='hs-layout'>(</span><span class='hs-varid'>ix</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-varid'>x</span> <span class='hs-keyword'>of</span>
<a name="line-469"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>x</span><span class='hs-keyglyph'>]</span>
<a name="line-470"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>runlen</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>uncurry</span> <span class='hs-layout'>(</span><span class='hs-conop'>:</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>second</span> <span class='hs-varid'>splitter</span> <span class='hs-varop'>$</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>splitAt</span> <span class='hs-layout'>(</span><span class='hs-varid'>ix</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-varop'>+</span><span class='hs-varid'>runlen</span><span class='hs-layout'>)</span> <span class='hs-varid'>x</span>
<a name="line-471"></a>
<a name="line-472"></a>
<a name="line-473"></a><a name="joinPath"></a><span class='hs-comment'>-- | Join a split path back together</span>
<a name="line-474"></a><span class='hs-comment'>--</span>
<a name="line-475"></a><span class='hs-comment'>-- prop&gt; \path -&gt; joinPath (splitPath path) == path</span>
<a name="line-476"></a><span class='hs-comment'>--</span>
<a name="line-477"></a><span class='hs-comment'>-- &gt;&gt;&gt; joinPath ["path","to","file.txt"]</span>
<a name="line-478"></a><span class='hs-comment'>-- "path/to/file.txt"</span>
<a name="line-479"></a><span class='hs-definition'>joinPath</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>RawFilePath</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>RawFilePath</span>
<a name="line-480"></a><span class='hs-definition'>joinPath</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>foldr</span> <span class='hs-layout'>(</span><span class='hs-varop'>&lt;/&gt;</span><span class='hs-layout'>)</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span>
<a name="line-481"></a>
<a name="line-482"></a>
<a name="line-483"></a><a name="splitDirectories"></a><span class='hs-comment'>-- | Like 'splitPath', but without trailing slashes</span>
<a name="line-484"></a><span class='hs-comment'>--</span>
<a name="line-485"></a><span class='hs-comment'>-- &gt;&gt;&gt; splitDirectories "/path/to/file.txt"</span>
<a name="line-486"></a><span class='hs-comment'>-- ["/","path","to","file.txt"]</span>
<a name="line-487"></a><span class='hs-comment'>-- &gt;&gt;&gt; splitDirectories ""</span>
<a name="line-488"></a><span class='hs-comment'>-- []</span>
<a name="line-489"></a><span class='hs-definition'>splitDirectories</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>RawFilePath</span><span class='hs-keyglyph'>]</span>
<a name="line-490"></a><span class='hs-definition'>splitDirectories</span> <span class='hs-varid'>x</span>
<a name="line-491"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>[]</span>
<a name="line-492"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isPathSeparator</span> <span class='hs-layout'>(</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>head</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>let</span> <span class='hs-layout'>(</span><span class='hs-varid'>root</span><span class='hs-layout'>,</span><span class='hs-varid'>rest</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>splitAt</span> <span class='hs-num'>1</span> <span class='hs-varid'>x</span>
<a name="line-493"></a> <span class='hs-keyword'>in</span> <span class='hs-varid'>root</span> <span class='hs-conop'>:</span> <span class='hs-varid'>splitter</span> <span class='hs-varid'>rest</span>
<a name="line-494"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>splitter</span> <span class='hs-varid'>x</span>
<a name="line-495"></a> <span class='hs-keyword'>where</span>
<a name="line-496"></a> <span class='hs-varid'>splitter</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>filter</span> <span class='hs-layout'>(</span><span class='hs-varid'>not</span> <span class='hs-varop'>.</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>split</span> <span class='hs-varid'>pathSeparator</span>
<a name="line-497"></a>
<a name="line-498"></a>
<a name="line-499"></a>
<a name="line-500"></a><span class='hs-comment'>------------------------</span>
<a name="line-501"></a><span class='hs-comment'>-- Trailing slash functions</span>
<a name="line-502"></a>
<a name="line-503"></a><a name="hasTrailingPathSeparator"></a><span class='hs-comment'>-- | Check if the last character of a 'RawFilePath' is '/'.</span>
<a name="line-504"></a><span class='hs-comment'>--</span>
<a name="line-505"></a><span class='hs-comment'>-- &gt;&gt;&gt; hasTrailingPathSeparator "/path/"</span>
<a name="line-506"></a><span class='hs-comment'>-- True</span>
<a name="line-507"></a><span class='hs-comment'>-- &gt;&gt;&gt; hasTrailingPathSeparator "/"</span>
<a name="line-508"></a><span class='hs-comment'>-- True</span>
<a name="line-509"></a><span class='hs-comment'>-- &gt;&gt;&gt; hasTrailingPathSeparator "/path"</span>
<a name="line-510"></a><span class='hs-comment'>-- False</span>
<a name="line-511"></a><span class='hs-definition'>hasTrailingPathSeparator</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Bool</span>
<a name="line-512"></a><span class='hs-definition'>hasTrailingPathSeparator</span> <span class='hs-varid'>x</span>
<a name="line-513"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-514"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>isPathSeparator</span> <span class='hs-varop'>$</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>last</span> <span class='hs-varid'>x</span>
<a name="line-515"></a>
<a name="line-516"></a>
<a name="line-517"></a><a name="addTrailingPathSeparator"></a><span class='hs-comment'>-- | Add a trailing path separator.</span>
<a name="line-518"></a><span class='hs-comment'>--</span>
<a name="line-519"></a><span class='hs-comment'>-- &gt;&gt;&gt; addTrailingPathSeparator "/path"</span>
<a name="line-520"></a><span class='hs-comment'>-- "/path/"</span>
<a name="line-521"></a><span class='hs-comment'>-- &gt;&gt;&gt; addTrailingPathSeparator "/path/"</span>
<a name="line-522"></a><span class='hs-comment'>-- "/path/"</span>
<a name="line-523"></a><span class='hs-comment'>-- &gt;&gt;&gt; addTrailingPathSeparator "/"</span>
<a name="line-524"></a><span class='hs-comment'>-- "/"</span>
<a name="line-525"></a><span class='hs-definition'>addTrailingPathSeparator</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>RawFilePath</span>
<a name="line-526"></a><span class='hs-definition'>addTrailingPathSeparator</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>hasTrailingPathSeparator</span> <span class='hs-varid'>x</span>
<a name="line-527"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>x</span>
<a name="line-528"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>x</span> <span class='hs-varop'>`</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>snoc</span><span class='hs-varop'>`</span> <span class='hs-varid'>pathSeparator</span>
<a name="line-529"></a>
<a name="line-530"></a>
<a name="line-531"></a><a name="dropTrailingPathSeparator"></a><span class='hs-comment'>-- | Remove a trailing path separator</span>
<a name="line-532"></a><span class='hs-comment'>--</span>
<a name="line-533"></a><span class='hs-comment'>-- &gt;&gt;&gt; dropTrailingPathSeparator "/path/"</span>
<a name="line-534"></a><span class='hs-comment'>-- "/path"</span>
<a name="line-535"></a><span class='hs-comment'>-- &gt;&gt;&gt; dropTrailingPathSeparator "/path////"</span>
<a name="line-536"></a><span class='hs-comment'>-- "/path"</span>
<a name="line-537"></a><span class='hs-comment'>-- &gt;&gt;&gt; dropTrailingPathSeparator "/"</span>
<a name="line-538"></a><span class='hs-comment'>-- "/"</span>
<a name="line-539"></a><span class='hs-comment'>-- &gt;&gt;&gt; dropTrailingPathSeparator "//"</span>
<a name="line-540"></a><span class='hs-comment'>-- "/"</span>
<a name="line-541"></a><span class='hs-definition'>dropTrailingPathSeparator</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>RawFilePath</span>
<a name="line-542"></a><span class='hs-definition'>dropTrailingPathSeparator</span> <span class='hs-varid'>x</span>
<a name="line-543"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-varid'>pathSeparator</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x</span>
<a name="line-544"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>hasTrailingPathSeparator</span> <span class='hs-varid'>x</span>
<a name="line-545"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>dropTrailingPathSeparator</span> <span class='hs-varop'>$</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>init</span> <span class='hs-varid'>x</span>
<a name="line-546"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>x</span>
<a name="line-547"></a>
<a name="line-548"></a>
<a name="line-549"></a>
<a name="line-550"></a><span class='hs-comment'>------------------------</span>
<a name="line-551"></a><span class='hs-comment'>-- File name manipulations</span>
<a name="line-552"></a>
<a name="line-553"></a>
<a name="line-554"></a><a name="normalise"></a><span class='hs-comment'>-- |Normalise a file.</span>
<a name="line-555"></a><span class='hs-comment'>--</span>
<a name="line-556"></a><span class='hs-comment'>-- &gt;&gt;&gt; normalise "/file/\\test////"</span>
<a name="line-557"></a><span class='hs-comment'>-- "/file/\\test/"</span>
<a name="line-558"></a><span class='hs-comment'>-- &gt;&gt;&gt; normalise "/file/./test"</span>
<a name="line-559"></a><span class='hs-comment'>-- "/file/test"</span>
<a name="line-560"></a><span class='hs-comment'>-- &gt;&gt;&gt; normalise "/test/file/../bob/fred/"</span>
<a name="line-561"></a><span class='hs-comment'>-- "/test/file/../bob/fred/"</span>
<a name="line-562"></a><span class='hs-comment'>-- &gt;&gt;&gt; normalise "../bob/fred/"</span>
<a name="line-563"></a><span class='hs-comment'>-- "../bob/fred/"</span>
<a name="line-564"></a><span class='hs-comment'>-- &gt;&gt;&gt; normalise "./bob/fred/"</span>
<a name="line-565"></a><span class='hs-comment'>-- "bob/fred/"</span>
<a name="line-566"></a><span class='hs-comment'>-- &gt;&gt;&gt; normalise "./bob////.fred/./...///./..///#."</span>
<a name="line-567"></a><span class='hs-comment'>-- "bob/.fred/.../../#."</span>
<a name="line-568"></a><span class='hs-comment'>-- &gt;&gt;&gt; normalise "."</span>
<a name="line-569"></a><span class='hs-comment'>-- "."</span>
<a name="line-570"></a><span class='hs-comment'>-- &gt;&gt;&gt; normalise "./"</span>
<a name="line-571"></a><span class='hs-comment'>-- "./"</span>
<a name="line-572"></a><span class='hs-comment'>-- &gt;&gt;&gt; normalise "./."</span>
<a name="line-573"></a><span class='hs-comment'>-- "./"</span>
<a name="line-574"></a><span class='hs-comment'>-- &gt;&gt;&gt; normalise "/./"</span>
<a name="line-575"></a><span class='hs-comment'>-- "/"</span>
<a name="line-576"></a><span class='hs-comment'>-- &gt;&gt;&gt; normalise "/"</span>
<a name="line-577"></a><span class='hs-comment'>-- "/"</span>
<a name="line-578"></a><span class='hs-comment'>-- &gt;&gt;&gt; normalise "bob/fred/."</span>
<a name="line-579"></a><span class='hs-comment'>-- "bob/fred/"</span>
<a name="line-580"></a><span class='hs-comment'>-- &gt;&gt;&gt; normalise "//home"</span>
<a name="line-581"></a><span class='hs-comment'>-- "/home"</span>
<a name="line-582"></a><span class='hs-definition'>normalise</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>RawFilePath</span>
<a name="line-583"></a><span class='hs-definition'>normalise</span> <span class='hs-varid'>filepath</span> <span class='hs-keyglyph'>=</span>
<a name="line-584"></a> <span class='hs-varid'>result</span> <span class='hs-varop'>`</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>append</span><span class='hs-varop'>`</span>
<a name="line-585"></a> <span class='hs-layout'>(</span><span class='hs-keyword'>if</span> <span class='hs-varid'>addPathSeparator</span>
<a name="line-586"></a> <span class='hs-keyword'>then</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-varid'>pathSeparator</span>
<a name="line-587"></a> <span class='hs-keyword'>else</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span><span class='hs-layout'>)</span>
<a name="line-588"></a> <span class='hs-keyword'>where</span>
<a name="line-589"></a> <span class='hs-varid'>result</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>let</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>f</span> <span class='hs-varid'>filepath</span>
<a name="line-590"></a> <span class='hs-keyword'>in</span> <span class='hs-keyword'>if</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>n</span>
<a name="line-591"></a> <span class='hs-keyword'>then</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-sel'>_period</span>
<a name="line-592"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>n</span>
<a name="line-593"></a> <span class='hs-varid'>addPathSeparator</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>isDirPath</span> <span class='hs-varid'>filepath</span> <span class='hs-varop'>&amp;&amp;</span>
<a name="line-594"></a> <span class='hs-varid'>not</span> <span class='hs-layout'>(</span><span class='hs-varid'>hasTrailingPathSeparator</span> <span class='hs-varid'>result</span><span class='hs-layout'>)</span>
<a name="line-595"></a> <span class='hs-varid'>isDirPath</span> <span class='hs-varid'>xs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>hasTrailingPathSeparator</span> <span class='hs-varid'>xs</span>
<a name="line-596"></a> <span class='hs-varop'>||</span> <span class='hs-varid'>not</span> <span class='hs-layout'>(</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span> <span class='hs-varop'>&amp;&amp;</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>last</span> <span class='hs-varid'>xs</span> <span class='hs-varop'>==</span> <span class='hs-sel'>_period</span>
<a name="line-597"></a> <span class='hs-varop'>&amp;&amp;</span> <span class='hs-varid'>hasTrailingPathSeparator</span> <span class='hs-layout'>(</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>init</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span>
<a name="line-598"></a> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>joinPath</span> <span class='hs-varop'>.</span> <span class='hs-varid'>dropDots</span> <span class='hs-varop'>.</span> <span class='hs-varid'>propSep</span> <span class='hs-varop'>.</span> <span class='hs-varid'>splitDirectories</span>
<a name="line-599"></a> <span class='hs-varid'>propSep</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>ByteString</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>ByteString</span><span class='hs-keyglyph'>]</span>
<a name="line-600"></a> <span class='hs-varid'>propSep</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-conop'>:</span><span class='hs-varid'>xs</span><span class='hs-layout'>)</span>
<a name="line-601"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>all</span> <span class='hs-layout'>(</span><span class='hs-varop'>==</span> <span class='hs-varid'>pathSeparator</span><span class='hs-layout'>)</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-varid'>pathSeparator</span> <span class='hs-conop'>:</span> <span class='hs-varid'>xs</span>
<a name="line-602"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x</span> <span class='hs-conop'>:</span> <span class='hs-varid'>xs</span>
<a name="line-603"></a> <span class='hs-varid'>propSep</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>[]</span>
<a name="line-604"></a> <span class='hs-varid'>dropDots</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>ByteString</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>ByteString</span><span class='hs-keyglyph'>]</span>
<a name="line-605"></a> <span class='hs-varid'>dropDots</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>filter</span> <span class='hs-layout'>(</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-sel'>_period</span> <span class='hs-varop'>/=</span><span class='hs-layout'>)</span>
<a name="line-606"></a>
<a name="line-607"></a>
<a name="line-608"></a>
<a name="line-609"></a><a name="makeRelative"></a><span class='hs-comment'>-- | Contract a filename, based on a relative path. Note that the resulting</span>
<a name="line-610"></a><span class='hs-comment'>-- path will never introduce @..@ paths, as the presence of symlinks</span>
<a name="line-611"></a><span class='hs-comment'>-- means @..\/b@ may not reach @a\/b@ if it starts from @a\/c@. For a</span>
<a name="line-612"></a><span class='hs-comment'>-- worked example see</span>
<a name="line-613"></a><span class='hs-comment'>-- &lt;<a href="http://neilmitchell.blogspot.co.uk/2015/10/filepaths-are-subtle-symlinks-are-hard.html">http://neilmitchell.blogspot.co.uk/2015/10/filepaths-are-subtle-symlinks-are-hard.html</a> this blog post&gt;.</span>
<a name="line-614"></a><span class='hs-comment'>--</span>
<a name="line-615"></a><span class='hs-comment'>-- &gt;&gt;&gt; makeRelative "/directory" "/directory/file.ext"</span>
<a name="line-616"></a><span class='hs-comment'>-- "file.ext"</span>
<a name="line-617"></a><span class='hs-comment'>-- &gt;&gt;&gt; makeRelative "/Home" "/home/bob"</span>
<a name="line-618"></a><span class='hs-comment'>-- "/home/bob"</span>
<a name="line-619"></a><span class='hs-comment'>-- &gt;&gt;&gt; makeRelative "/home/" "/home/bob/foo/bar"</span>
<a name="line-620"></a><span class='hs-comment'>-- "bob/foo/bar"</span>
<a name="line-621"></a><span class='hs-comment'>-- &gt;&gt;&gt; makeRelative "/fred" "bob"</span>
<a name="line-622"></a><span class='hs-comment'>-- "bob"</span>
<a name="line-623"></a><span class='hs-comment'>-- &gt;&gt;&gt; makeRelative "/file/test" "/file/test/fred"</span>
<a name="line-624"></a><span class='hs-comment'>-- "fred"</span>
<a name="line-625"></a><span class='hs-comment'>-- &gt;&gt;&gt; makeRelative "/file/test" "/file/test/fred/"</span>
<a name="line-626"></a><span class='hs-comment'>-- "fred/"</span>
<a name="line-627"></a><span class='hs-comment'>-- &gt;&gt;&gt; makeRelative "some/path" "some/path/a/b/c"</span>
<a name="line-628"></a><span class='hs-comment'>-- "a/b/c"</span>
<a name="line-629"></a><span class='hs-comment'>--</span>
<a name="line-630"></a><span class='hs-comment'>-- prop&gt; \p -&gt; makeRelative p p == "."</span>
<a name="line-631"></a><span class='hs-comment'>-- prop&gt; \p -&gt; makeRelative (takeDirectory p) p `equalFilePath` takeFileName p</span>
<a name="line-632"></a><span class='hs-comment'>-- prop \x y -&gt; equalFilePath x y || (isRelative x &amp;&amp; makeRelative y x == x) || equalFilePath (y &lt;/&gt; makeRelative y x) x</span>
<a name="line-633"></a><span class='hs-definition'>makeRelative</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>RawFilePath</span>
<a name="line-634"></a><span class='hs-definition'>makeRelative</span> <span class='hs-varid'>root</span> <span class='hs-varid'>path</span>
<a name="line-635"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>equalFilePath</span> <span class='hs-varid'>root</span> <span class='hs-varid'>path</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-sel'>_period</span>
<a name="line-636"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>takeAbs</span> <span class='hs-varid'>root</span> <span class='hs-varop'>/=</span> <span class='hs-varid'>takeAbs</span> <span class='hs-varid'>path</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>path</span>
<a name="line-637"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-varid'>dropAbs</span> <span class='hs-varid'>root</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>dropAbs</span> <span class='hs-varid'>path</span><span class='hs-layout'>)</span>
<a name="line-638"></a> <span class='hs-keyword'>where</span>
<a name="line-639"></a> <span class='hs-varid'>f</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-640"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>dropWhile</span> <span class='hs-varid'>isPathSeparator</span> <span class='hs-varid'>y</span>
<a name="line-641"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>let</span> <span class='hs-layout'>(</span><span class='hs-varid'>x1</span><span class='hs-layout'>,</span><span class='hs-varid'>x2</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>g</span> <span class='hs-varid'>x</span>
<a name="line-642"></a> <span class='hs-layout'>(</span><span class='hs-varid'>y1</span><span class='hs-layout'>,</span><span class='hs-varid'>y2</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>g</span> <span class='hs-varid'>y</span>
<a name="line-643"></a> <span class='hs-keyword'>in</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>equalFilePath</span> <span class='hs-varid'>x1</span> <span class='hs-varid'>y1</span> <span class='hs-keyword'>then</span> <span class='hs-varid'>f</span> <span class='hs-varid'>x2</span> <span class='hs-varid'>y2</span> <span class='hs-keyword'>else</span> <span class='hs-varid'>path</span>
<a name="line-644"></a> <span class='hs-varid'>g</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>dropWhile</span> <span class='hs-varid'>isPathSeparator</span> <span class='hs-varid'>a</span><span class='hs-layout'>,</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>dropWhile</span> <span class='hs-varid'>isPathSeparator</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span>
<a name="line-645"></a> <span class='hs-keyword'>where</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>break</span> <span class='hs-varid'>isPathSeparator</span> <span class='hs-varop'>$</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>dropWhile</span> <span class='hs-varid'>isPathSeparator</span> <span class='hs-varid'>x</span>
<a name="line-646"></a> <span class='hs-varid'>dropAbs</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>snd</span> <span class='hs-varop'>$</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>span</span> <span class='hs-layout'>(</span><span class='hs-varop'>==</span> <span class='hs-sel'>_slash</span><span class='hs-layout'>)</span> <span class='hs-varid'>x</span>
<a name="line-647"></a> <span class='hs-varid'>takeAbs</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fst</span> <span class='hs-varop'>$</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>span</span> <span class='hs-layout'>(</span><span class='hs-varop'>==</span> <span class='hs-sel'>_slash</span><span class='hs-layout'>)</span> <span class='hs-varid'>x</span>
<a name="line-648"></a>
<a name="line-649"></a>
<a name="line-650"></a><a name="equalFilePath"></a><span class='hs-comment'>-- |Equality of two filepaths. The filepaths are normalised</span>
<a name="line-651"></a><span class='hs-comment'>-- and trailing path separators are dropped.</span>
<a name="line-652"></a><span class='hs-comment'>--</span>
<a name="line-653"></a><span class='hs-comment'>-- &gt;&gt;&gt; equalFilePath "foo" "foo"</span>
<a name="line-654"></a><span class='hs-comment'>-- True</span>
<a name="line-655"></a><span class='hs-comment'>-- &gt;&gt;&gt; equalFilePath "foo" "foo/"</span>
<a name="line-656"></a><span class='hs-comment'>-- True</span>
<a name="line-657"></a><span class='hs-comment'>-- &gt;&gt;&gt; equalFilePath "foo" "./foo"</span>
<a name="line-658"></a><span class='hs-comment'>-- True</span>
<a name="line-659"></a><span class='hs-comment'>-- &gt;&gt;&gt; equalFilePath "" ""</span>
<a name="line-660"></a><span class='hs-comment'>-- True</span>
<a name="line-661"></a><span class='hs-comment'>-- &gt;&gt;&gt; equalFilePath "foo" "/foo"</span>
<a name="line-662"></a><span class='hs-comment'>-- False</span>
<a name="line-663"></a><span class='hs-comment'>-- &gt;&gt;&gt; equalFilePath "foo" "FOO"</span>
<a name="line-664"></a><span class='hs-comment'>-- False</span>
<a name="line-665"></a><span class='hs-comment'>-- &gt;&gt;&gt; equalFilePath "foo" "../foo"</span>
<a name="line-666"></a><span class='hs-comment'>-- False</span>
<a name="line-667"></a><span class='hs-comment'>--</span>
<a name="line-668"></a><span class='hs-comment'>-- prop&gt; \p -&gt; equalFilePath p p</span>
<a name="line-669"></a><span class='hs-definition'>equalFilePath</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Bool</span>
<a name="line-670"></a><span class='hs-definition'>equalFilePath</span> <span class='hs-varid'>p1</span> <span class='hs-varid'>p2</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>f</span> <span class='hs-varid'>p1</span> <span class='hs-varop'>==</span> <span class='hs-varid'>f</span> <span class='hs-varid'>p2</span>
<a name="line-671"></a> <span class='hs-keyword'>where</span>
<a name="line-672"></a> <span class='hs-varid'>f</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>dropTrailingPathSeparator</span> <span class='hs-varop'>$</span> <span class='hs-varid'>normalise</span> <span class='hs-varid'>x</span>
<a name="line-673"></a>
<a name="line-674"></a>
<a name="line-675"></a><a name="isRelative"></a><span class='hs-comment'>-- | Check if a path is relative</span>
<a name="line-676"></a><span class='hs-comment'>--</span>
<a name="line-677"></a><span class='hs-comment'>-- prop&gt; \path -&gt; isRelative path /= isAbsolute path</span>
<a name="line-678"></a><span class='hs-definition'>isRelative</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Bool</span>
<a name="line-679"></a><span class='hs-definition'>isRelative</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>not</span> <span class='hs-varop'>.</span> <span class='hs-varid'>isAbsolute</span>
<a name="line-680"></a>
<a name="line-681"></a>
<a name="line-682"></a><a name="isAbsolute"></a><span class='hs-comment'>-- | Check if a path is absolute</span>
<a name="line-683"></a><span class='hs-comment'>--</span>
<a name="line-684"></a><span class='hs-comment'>-- &gt;&gt;&gt; isAbsolute "/path"</span>
<a name="line-685"></a><span class='hs-comment'>-- True</span>
<a name="line-686"></a><span class='hs-comment'>-- &gt;&gt;&gt; isAbsolute "path"</span>
<a name="line-687"></a><span class='hs-comment'>-- False</span>
<a name="line-688"></a><span class='hs-comment'>-- &gt;&gt;&gt; isAbsolute ""</span>
<a name="line-689"></a><span class='hs-comment'>-- False</span>
<a name="line-690"></a><span class='hs-definition'>isAbsolute</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Bool</span>
<a name="line-691"></a><span class='hs-definition'>isAbsolute</span> <span class='hs-varid'>x</span>
<a name="line-692"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>length</span> <span class='hs-varid'>x</span> <span class='hs-varop'>&gt;</span> <span class='hs-num'>0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>isPathSeparator</span> <span class='hs-layout'>(</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>head</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span>
<a name="line-693"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-694"></a>
<a name="line-695"></a>
<a name="line-696"></a><a name="isValid"></a><span class='hs-comment'>-- | Is a FilePath valid, i.e. could you create a file like it?</span>
<a name="line-697"></a><span class='hs-comment'>--</span>
<a name="line-698"></a><span class='hs-comment'>-- &gt;&gt;&gt; isValid ""</span>
<a name="line-699"></a><span class='hs-comment'>-- False</span>
<a name="line-700"></a><span class='hs-comment'>-- &gt;&gt;&gt; isValid "\0"</span>
<a name="line-701"></a><span class='hs-comment'>-- False</span>
<a name="line-702"></a><span class='hs-comment'>-- &gt;&gt;&gt; isValid "/random_ path:*"</span>
<a name="line-703"></a><span class='hs-comment'>-- True</span>
<a name="line-704"></a><span class='hs-definition'>isValid</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Bool</span>
<a name="line-705"></a><span class='hs-definition'>isValid</span> <span class='hs-varid'>filepath</span>
<a name="line-706"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>filepath</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-707"></a> <span class='hs-keyglyph'>|</span> <span class='hs-sel'>_nul</span> <span class='hs-varop'>`</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>elem</span><span class='hs-varop'>`</span> <span class='hs-varid'>filepath</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-708"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span>
<a name="line-709"></a>
<a name="line-710"></a>
<a name="line-711"></a><a name="makeValid"></a><span class='hs-comment'>-- | Take a FilePath and make it valid; does not change already valid FilePaths.</span>
<a name="line-712"></a><span class='hs-comment'>--</span>
<a name="line-713"></a><span class='hs-comment'>-- &gt;&gt;&gt; makeValid ""</span>
<a name="line-714"></a><span class='hs-comment'>-- "_"</span>
<a name="line-715"></a><span class='hs-comment'>-- &gt;&gt;&gt; makeValid "file\0name"</span>
<a name="line-716"></a><span class='hs-comment'>-- "file_name"</span>
<a name="line-717"></a><span class='hs-comment'>--</span>
<a name="line-718"></a><span class='hs-comment'>-- prop&gt; \p -&gt; if isValid p then makeValid p == p else makeValid p /= p</span>
<a name="line-719"></a><span class='hs-comment'>-- prop&gt; \p -&gt; isValid (makeValid p)</span>
<a name="line-720"></a><span class='hs-definition'>makeValid</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>RawFilePath</span>
<a name="line-721"></a><span class='hs-definition'>makeValid</span> <span class='hs-varid'>path</span>
<a name="line-722"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>path</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-sel'>_underscore</span>
<a name="line-723"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>x</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-sel'>_nul</span> <span class='hs-keyword'>then</span> <span class='hs-sel'>_underscore</span> <span class='hs-keyword'>else</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-varid'>path</span>
<a name="line-724"></a>
<a name="line-725"></a>
<a name="line-726"></a><a name="isFileName"></a><span class='hs-comment'>-- | Is the given path a valid filename? This includes</span>
<a name="line-727"></a><span class='hs-comment'>-- "." and "..".</span>
<a name="line-728"></a><span class='hs-comment'>--</span>
<a name="line-729"></a><span class='hs-comment'>-- &gt;&gt;&gt; isFileName "lal"</span>
<a name="line-730"></a><span class='hs-comment'>-- True</span>
<a name="line-731"></a><span class='hs-comment'>-- &gt;&gt;&gt; isFileName "."</span>
<a name="line-732"></a><span class='hs-comment'>-- True</span>
<a name="line-733"></a><span class='hs-comment'>-- &gt;&gt;&gt; isFileName ".."</span>
<a name="line-734"></a><span class='hs-comment'>-- True</span>
<a name="line-735"></a><span class='hs-comment'>-- &gt;&gt;&gt; isFileName ""</span>
<a name="line-736"></a><span class='hs-comment'>-- False</span>
<a name="line-737"></a><span class='hs-comment'>-- &gt;&gt;&gt; isFileName "\0"</span>
<a name="line-738"></a><span class='hs-comment'>-- False</span>
<a name="line-739"></a><span class='hs-comment'>-- &gt;&gt;&gt; isFileName "/random_ path:*"</span>
<a name="line-740"></a><span class='hs-comment'>-- False</span>
<a name="line-741"></a><span class='hs-definition'>isFileName</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Bool</span>
<a name="line-742"></a><span class='hs-definition'>isFileName</span> <span class='hs-varid'>filepath</span> <span class='hs-keyglyph'>=</span>
<a name="line-743"></a> <span class='hs-varid'>not</span> <span class='hs-layout'>(</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-varid'>pathSeparator</span> <span class='hs-varop'>`</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>isInfixOf</span><span class='hs-varop'>`</span> <span class='hs-varid'>filepath</span><span class='hs-layout'>)</span> <span class='hs-varop'>&amp;&amp;</span>
<a name="line-744"></a> <span class='hs-varid'>not</span> <span class='hs-layout'>(</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>filepath</span><span class='hs-layout'>)</span> <span class='hs-varop'>&amp;&amp;</span>
<a name="line-745"></a> <span class='hs-varid'>not</span> <span class='hs-layout'>(</span><span class='hs-sel'>_nul</span> <span class='hs-varop'>`</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>elem</span><span class='hs-varop'>`</span> <span class='hs-varid'>filepath</span><span class='hs-layout'>)</span>
<a name="line-746"></a>
<a name="line-747"></a>
<a name="line-748"></a><a name="hasParentDir"></a><span class='hs-comment'>-- | Check if the filepath has any parent directories in it.</span>
<a name="line-749"></a><span class='hs-comment'>--</span>
<a name="line-750"></a><span class='hs-comment'>-- &gt;&gt;&gt; hasParentDir "/.."</span>
<a name="line-751"></a><span class='hs-comment'>-- True</span>
<a name="line-752"></a><span class='hs-comment'>-- &gt;&gt;&gt; hasParentDir "foo/bar/.."</span>
<a name="line-753"></a><span class='hs-comment'>-- True</span>
<a name="line-754"></a><span class='hs-comment'>-- &gt;&gt;&gt; hasParentDir "foo/../bar/."</span>
<a name="line-755"></a><span class='hs-comment'>-- True</span>
<a name="line-756"></a><span class='hs-comment'>-- &gt;&gt;&gt; hasParentDir "foo/bar"</span>
<a name="line-757"></a><span class='hs-comment'>-- False</span>
<a name="line-758"></a><span class='hs-comment'>-- &gt;&gt;&gt; hasParentDir "foo"</span>
<a name="line-759"></a><span class='hs-comment'>-- False</span>
<a name="line-760"></a><span class='hs-comment'>-- &gt;&gt;&gt; hasParentDir ""</span>
<a name="line-761"></a><span class='hs-comment'>-- False</span>
<a name="line-762"></a><span class='hs-comment'>-- &gt;&gt;&gt; hasParentDir ".."</span>
<a name="line-763"></a><span class='hs-comment'>-- False</span>
<a name="line-764"></a><span class='hs-definition'>hasParentDir</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Bool</span>
<a name="line-765"></a><span class='hs-definition'>hasParentDir</span> <span class='hs-varid'>filepath</span> <span class='hs-keyglyph'>=</span>
<a name="line-766"></a> <span class='hs-layout'>(</span><span class='hs-varid'>pathSeparator</span> <span class='hs-varop'>`</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>cons</span><span class='hs-varop'>`</span> <span class='hs-varid'>pathDoubleDot</span><span class='hs-layout'>)</span>
<a name="line-767"></a> <span class='hs-varop'>`</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>isSuffixOf</span><span class='hs-varop'>`</span> <span class='hs-varid'>filepath</span>
<a name="line-768"></a> <span class='hs-varop'>||</span>
<a name="line-769"></a> <span class='hs-layout'>(</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-varid'>pathSeparator</span>
<a name="line-770"></a> <span class='hs-varop'>`</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>append</span><span class='hs-varop'>`</span> <span class='hs-varid'>pathDoubleDot</span>
<a name="line-771"></a> <span class='hs-varop'>`</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>append</span><span class='hs-varop'>`</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-varid'>pathSeparator</span><span class='hs-layout'>)</span>
<a name="line-772"></a> <span class='hs-varop'>`</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>isInfixOf</span><span class='hs-varop'>`</span> <span class='hs-varid'>filepath</span>
<a name="line-773"></a> <span class='hs-varop'>||</span>
<a name="line-774"></a> <span class='hs-layout'>(</span><span class='hs-varid'>pathDoubleDot</span> <span class='hs-varop'>`</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>append</span><span class='hs-varop'>`</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-varid'>pathSeparator</span><span class='hs-layout'>)</span>
<a name="line-775"></a> <span class='hs-varop'>`</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>isPrefixOf</span><span class='hs-varop'>`</span> <span class='hs-varid'>filepath</span>
<a name="line-776"></a> <span class='hs-keyword'>where</span>
<a name="line-777"></a> <span class='hs-varid'>pathDoubleDot</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-keyglyph'>[</span><span class='hs-sel'>_period</span><span class='hs-layout'>,</span> <span class='hs-sel'>_period</span><span class='hs-keyglyph'>]</span>
<a name="line-778"></a>
<a name="line-779"></a>
<a name="line-780"></a><a name="hiddenFile"></a><span class='hs-comment'>-- | Whether the file is a hidden file.</span>
<a name="line-781"></a><span class='hs-comment'>--</span>
<a name="line-782"></a><span class='hs-comment'>-- &gt;&gt;&gt; hiddenFile ".foo"</span>
<a name="line-783"></a><span class='hs-comment'>-- True</span>
<a name="line-784"></a><span class='hs-comment'>-- &gt;&gt;&gt; hiddenFile "..foo.bar"</span>
<a name="line-785"></a><span class='hs-comment'>-- True</span>
<a name="line-786"></a><span class='hs-comment'>-- &gt;&gt;&gt; hiddenFile "some/path/.bar"</span>
<a name="line-787"></a><span class='hs-comment'>-- True</span>
<a name="line-788"></a><span class='hs-comment'>-- &gt;&gt;&gt; hiddenFile "..."</span>
<a name="line-789"></a><span class='hs-comment'>-- True</span>
<a name="line-790"></a><span class='hs-comment'>-- &gt;&gt;&gt; hiddenFile "dod.bar"</span>
<a name="line-791"></a><span class='hs-comment'>-- False</span>
<a name="line-792"></a><span class='hs-comment'>-- &gt;&gt;&gt; hiddenFile "."</span>
<a name="line-793"></a><span class='hs-comment'>-- False</span>
<a name="line-794"></a><span class='hs-comment'>-- &gt;&gt;&gt; hiddenFile ".."</span>
<a name="line-795"></a><span class='hs-comment'>-- False</span>
<a name="line-796"></a><span class='hs-comment'>-- &gt;&gt;&gt; hiddenFile ""</span>
<a name="line-797"></a><span class='hs-comment'>-- False</span>
<a name="line-798"></a><span class='hs-definition'>hiddenFile</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Bool</span>
<a name="line-799"></a><span class='hs-definition'>hiddenFile</span> <span class='hs-varid'>fp</span>
<a name="line-800"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>fn</span> <span class='hs-varop'>==</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-keyglyph'>[</span><span class='hs-sel'>_period</span><span class='hs-layout'>,</span> <span class='hs-sel'>_period</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-801"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>fn</span> <span class='hs-varop'>==</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-keyglyph'>[</span><span class='hs-sel'>_period</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-802"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>extSeparator</span><span class='hs-keyglyph'>]</span>
<a name="line-803"></a> <span class='hs-varop'>`</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>isPrefixOf</span><span class='hs-varop'>`</span> <span class='hs-varid'>fn</span>
<a name="line-804"></a> <span class='hs-keyword'>where</span>
<a name="line-805"></a> <span class='hs-varid'>fn</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>takeFileName</span> <span class='hs-varid'>fp</span>
<a name="line-806"></a>
<a name="line-807"></a>
<a name="line-808"></a>
<a name="line-809"></a><span class='hs-comment'>------------------------</span>
<a name="line-810"></a><span class='hs-comment'>-- internal stuff</span>
<a name="line-811"></a>
<a name="line-812"></a><a name="splitFileNameRaw"></a><span class='hs-comment'>-- Just split the input FileName without adding/normalizing or changing</span>
<a name="line-813"></a><span class='hs-comment'>-- anything.</span>
<a name="line-814"></a><span class='hs-definition'>splitFileNameRaw</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-conid'>RawFilePath</span><span class='hs-layout'>,</span> <span class='hs-conid'>RawFilePath</span><span class='hs-layout'>)</span>
<a name="line-815"></a><span class='hs-definition'>splitFileNameRaw</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>breakEnd</span> <span class='hs-varid'>isPathSeparator</span>
<a name="line-816"></a>
<a name="line-817"></a><a name="combineRaw"></a><span class='hs-comment'>-- | Combine two paths, assuming rhs is NOT absolute.</span>
<a name="line-818"></a><span class='hs-definition'>combineRaw</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>RawFilePath</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>RawFilePath</span>
<a name="line-819"></a><span class='hs-definition'>combineRaw</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>b</span>
<a name="line-820"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>a</span>
<a name="line-821"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isPathSeparator</span> <span class='hs-layout'>(</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>last</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>append</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span>
<a name="line-822"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>intercalate</span> <span class='hs-layout'>(</span><span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-varid'>pathSeparator</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span> <span class='hs-varid'>b</span><span class='hs-keyglyph'>]</span>
<a name="line-823"></a>
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.hs-keyglyph, .hs-layout {color: red;}
.hs-keyword {color: blue;}
.hs-comment, .hs-comment a {color: green;}
.hs-str, .hs-chr {color: teal;}
.hs-keyword, .hs-conid, .hs-varid, .hs-conop, .hs-varop, .hs-num, .hs-cpp, .hs-sel, .hs-definition {}

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