ghcup-hs/lib/GHCup/Stack.hs

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{-# LANGUAGE CPP #-}
{-# LANGUAGE DataKinds #-}
{-# LANGUAGE FlexibleContexts #-}
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE MultiParamTypeClasses #-}
{-# LANGUAGE OverloadedStrings #-}
{-|
Module : GHCup.Stack
Description : GHCup installation functions for Stack
Copyright : (c) Julian Ospald, 2020
License : LGPL-3.0
Maintainer : hasufell@hasufell.de
Stability : experimental
Portability : portable
-}
module GHCup.Stack where
import GHCup.Download
import GHCup.Errors
import GHCup.Types
import GHCup.Types.JSON ( )
import GHCup.Types.Optics
import GHCup.Utils
import GHCup.Prelude
import GHCup.Prelude.File
import GHCup.Prelude.Logger
import Codec.Archive ( ArchiveResult )
import Control.Applicative
import Control.Exception.Safe
import Control.Monad
#if !MIN_VERSION_base(4,13,0)
import Control.Monad.Fail ( MonadFail )
#endif
import Control.Monad.Reader
import Control.Monad.Trans.Resource
hiding ( throwM )
import Data.Either
import Data.List
import Data.Maybe
import Data.Versions hiding ( patch )
import Haskus.Utils.Variant.Excepts
import Optics
import Prelude hiding ( abs
, writeFile
)
import Safe hiding ( at )
import System.FilePath
import System.IO.Error
import qualified Data.Text as T
--------------------
--[ Installation ]--
--------------------
-- | Installs stack into @~\/.ghcup\/bin/stack-\<ver\>@ and
-- creates a default @stack -> stack-x.y.z.q@ symlink for
-- the latest installed version.
installStackBin :: ( MonadMask m
, MonadCatch m
, MonadReader env m
, HasDirs env
, HasSettings env
, HasPlatformReq env
, HasGHCupInfo env
, HasLog env
, MonadResource m
, MonadIO m
, MonadUnliftIO m
, MonadFail m
)
=> Version
-> InstallDir
-> Bool -- ^ Force install
-> Excepts
'[ AlreadyInstalled
, CopyError
, DigestError
, ContentLengthError
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, GPGError
, DownloadFailed
, NoDownload
, NotInstalled
, UnknownArchive
, TarDirDoesNotExist
, ArchiveResult
, FileAlreadyExistsError
]
m
()
installStackBin ver installDir forceInstall = do
dlinfo <- liftE $ getDownloadInfo Stack ver
installStackBindist dlinfo ver installDir forceInstall
-- | Like 'installStackBin', except takes the 'DownloadInfo' as
-- argument instead of looking it up from 'GHCupDownloads'.
installStackBindist :: ( MonadMask m
, MonadCatch m
, MonadReader env m
, HasPlatformReq env
, HasDirs env
, HasSettings env
, HasLog env
, MonadResource m
, MonadIO m
, MonadUnliftIO m
, MonadFail m
)
=> DownloadInfo
-> Version
-> InstallDir
-> Bool -- ^ Force install
-> Excepts
'[ AlreadyInstalled
, CopyError
, DigestError
, ContentLengthError
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, GPGError
, DownloadFailed
, NoDownload
, NotInstalled
, UnknownArchive
, TarDirDoesNotExist
, ArchiveResult
, FileAlreadyExistsError
]
m
()
installStackBindist dlinfo ver installDir forceInstall = do
lift $ logDebug $ "Requested to install stack version " <> prettyVer ver
PlatformRequest {..} <- lift getPlatformReq
Dirs {..} <- lift getDirs
regularStackInstalled <- lift $ stackInstalled ver
if
| not forceInstall
, regularStackInstalled
, GHCupInternal <- installDir -> do
throwE $ AlreadyInstalled Stack ver
| forceInstall
, regularStackInstalled
, GHCupInternal <- installDir -> do
lift $ logInfo "Removing the currently installed version of Stack first!"
liftE $ rmStackVer ver
| otherwise -> pure ()
-- download (or use cached version)
dl <- liftE $ downloadCached dlinfo Nothing
-- unpack
tmpUnpack <- lift withGHCupTmpDir
liftE $ cleanUpOnError tmpUnpack (unpackToDir (fromGHCupPath tmpUnpack) dl)
liftE $ catchWarn $ lEM @_ @'[ProcessError] $ darwinNotarization _rPlatform (fromGHCupPath tmpUnpack)
-- the subdir of the archive where we do the work
workdir <- maybe (pure tmpUnpack) (liftE . intoSubdir tmpUnpack) (view dlSubdir dlinfo)
case installDir of
IsolateDir isoDir -> do -- isolated install
lift $ logInfo $ "isolated installing Stack to " <> T.pack isoDir
liftE $ installStackUnpacked workdir (IsolateDirResolved isoDir) ver forceInstall
GHCupInternal -> do -- regular install
liftE $ installStackUnpacked workdir (GHCupBinDir binDir) ver forceInstall
-- | Install an unpacked stack distribution.
installStackUnpacked :: (MonadReader env m, HasLog env, MonadCatch m, MonadIO m)
=> GHCupPath -- ^ Path to the unpacked stack bindist (where the executable resides)
-> InstallDirResolved
-> Version
-> Bool -- ^ Force install
-> Excepts '[CopyError, FileAlreadyExistsError] m ()
installStackUnpacked path installDir ver forceInstall = do
lift $ logInfo "Installing stack"
let stackFile = "stack"
liftIO $ createDirRecursive' (fromInstallDir installDir)
let destFileName = stackFile
<> (case installDir of
IsolateDirResolved _ -> ""
_ -> ("-" <>) . T.unpack . prettyVer $ ver
)
<> exeExt
destPath = fromInstallDir installDir </> destFileName
copyFileE
(fromGHCupPath path </> stackFile <> exeExt)
destPath
(not forceInstall)
lift $ chmod_755 destPath
-----------------
--[ Set stack ]--
-----------------
-- | Set the @~\/.ghcup\/bin\/stack@ symlink.
setStack :: ( MonadMask m
, MonadReader env m
, HasDirs env
, HasLog env
, MonadThrow m
, MonadFail m
, MonadIO m
, MonadUnliftIO m
)
=> Version
-> Excepts '[NotInstalled] m ()
setStack ver = do
let targetFile = "stack-" <> T.unpack (prettyVer ver) <> exeExt
-- symlink destination
Dirs {..} <- lift getDirs
whenM (liftIO $ not <$> doesFileExist (binDir </> targetFile))
$ throwE
$ NotInstalled Stack (GHCTargetVersion Nothing ver)
let stackbin = binDir </> "stack" <> exeExt
lift $ createLink targetFile stackbin
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liftIO (isShadowed stackbin) >>= \case
Nothing -> pure ()
Just pa -> lift $ logWarn $ T.pack $ prettyHFError (ToolShadowed Cabal pa stackbin ver)
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pure ()
unsetStack :: ( MonadMask m
, MonadReader env m
, HasDirs env
, MonadIO m)
=> m ()
unsetStack = do
Dirs {..} <- getDirs
let stackbin = binDir </> "stack" <> exeExt
hideError doesNotExistErrorType $ rmLink stackbin
----------------
--[ Rm stack ]--
----------------
-- | Delete a stack version. Will try to fix the @stack@ symlink
-- after removal (e.g. setting it to an older version).
rmStackVer :: ( MonadMask m
, MonadReader env m
, HasDirs env
, MonadThrow m
, HasLog env
, MonadIO m
, MonadFail m
, MonadCatch m
, MonadUnliftIO m
)
=> Version
-> Excepts '[NotInstalled] m ()
rmStackVer ver = do
whenM (lift $ fmap not $ stackInstalled ver) $ throwE (NotInstalled Stack (GHCTargetVersion Nothing ver))
sSet <- lift stackSet
Dirs {..} <- lift getDirs
let stackFile = "stack-" <> T.unpack (prettyVer ver) <> exeExt
lift $ hideError doesNotExistErrorType $ recycleFile (binDir </> stackFile)
when (Just ver == sSet) $ do
sVers <- lift $ fmap rights getInstalledStacks
case headMay . reverse . sort $ sVers of
Just latestver -> setStack latestver
Nothing -> lift $ rmLink (binDir </> "stack" <> exeExt)