ghcup-hs/lib/GHCup/Cabal.hs

286 lines
9.3 KiB
Haskell

{-# LANGUAGE CPP #-}
{-# LANGUAGE DataKinds #-}
{-# LANGUAGE FlexibleContexts #-}
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE MultiParamTypeClasses #-}
{-# LANGUAGE OverloadedStrings #-}
{-|
Module : GHCup.Cabal
Description : GHCup installation functions for Cabal
Copyright : (c) Julian Ospald, 2020
License : LGPL-3.0
Maintainer : hasufell@hasufell.de
Stability : experimental
Portability : portable
-}
module GHCup.Cabal 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
-------------------------
--[ Tool installation ]--
-------------------------
-- | Like 'installCabalBin', except takes the 'DownloadInfo' as
-- argument instead of looking it up from 'GHCupDownloads'.
installCabalBindist :: ( 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
, GPGError
, DownloadFailed
, NoDownload
, NotInstalled
, UnknownArchive
, TarDirDoesNotExist
, ArchiveResult
, FileAlreadyExistsError
]
m
()
installCabalBindist dlinfo ver installDir forceInstall = do
lift $ logDebug $ "Requested to install cabal version " <> prettyVer ver
PlatformRequest {..} <- lift getPlatformReq
Dirs {..} <- lift getDirs
-- check if we already have a regular cabal already installed
regularCabalInstalled <- lift $ cabalInstalled ver
if
| not forceInstall
, regularCabalInstalled
, GHCupInternal <- installDir -> do
throwE $ AlreadyInstalled Cabal ver
| forceInstall
, regularCabalInstalled
, GHCupInternal <- installDir -> do
lift $ logInfo "Removing the currently installed version first!"
liftE $ rmCabalVer 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 <- fromGHCupPath <$> maybe (pure tmpUnpack) (liftE . intoSubdir tmpUnpack) (view dlSubdir dlinfo)
case installDir of
IsolateDir isoDir -> do -- isolated install
lift $ logInfo $ "isolated installing Cabal to " <> T.pack isoDir
liftE $ installCabalUnpacked workdir (IsolateDirResolved isoDir) ver forceInstall
GHCupInternal -> do -- regular install
liftE $ installCabalUnpacked workdir (GHCupBinDir binDir) ver forceInstall
-- | Install an unpacked cabal distribution.Symbol
installCabalUnpacked :: (MonadCatch m, HasLog env, MonadIO m, MonadReader env m)
=> FilePath -- ^ Path to the unpacked cabal bindist (where the executable resides)
-> InstallDirResolved -- ^ Path to install to
-> Version
-> Bool -- ^ Force Install
-> Excepts '[CopyError, FileAlreadyExistsError] m ()
installCabalUnpacked path inst ver forceInstall = do
lift $ logInfo "Installing cabal"
let cabalFile = "cabal"
liftIO $ createDirRecursive' (fromInstallDir inst)
let destFileName = cabalFile
<> (case inst of
IsolateDirResolved _ -> ""
_ -> ("-" <>) . T.unpack . prettyVer $ ver
)
<> exeExt
let destPath = fromInstallDir inst </> destFileName
copyFileE
(path </> cabalFile <> exeExt)
destPath
(not forceInstall)
lift $ chmod_755 destPath
-- | Installs cabal into @~\/.ghcup\/bin/cabal-\<ver\>@ and
-- creates a default @cabal -> cabal-x.y.z.q@ symlink for
-- the latest installed version.
installCabalBin :: ( MonadMask m
, MonadCatch m
, MonadReader env m
, HasPlatformReq env
, HasGHCupInfo env
, HasDirs env
, HasSettings env
, HasLog env
, MonadResource m
, MonadIO m
, MonadUnliftIO m
, MonadFail m
)
=> Version
-> InstallDir
-> Bool -- force install
-> Excepts
'[ AlreadyInstalled
, CopyError
, DigestError
, ContentLengthError
, GPGError
, DownloadFailed
, NoDownload
, NotInstalled
, UnknownArchive
, TarDirDoesNotExist
, ArchiveResult
, FileAlreadyExistsError
]
m
()
installCabalBin ver installDir forceInstall = do
dlinfo <- liftE $ getDownloadInfo Cabal ver
installCabalBindist dlinfo ver installDir forceInstall
-----------------
--[ Set cabal ]--
-----------------
-- | Set the @~\/.ghcup\/bin\/cabal@ symlink.
setCabal :: ( MonadMask m
, MonadReader env m
, HasDirs env
, HasLog env
, MonadFail m
, MonadIO m
, MonadUnliftIO m)
=> Version
-> Excepts '[NotInstalled] m ()
setCabal ver = do
let targetFile = "cabal-" <> T.unpack (prettyVer ver) <> exeExt
-- symlink destination
Dirs {..} <- lift getDirs
whenM (liftIO $ not <$> doesFileExist (binDir </> targetFile))
$ throwE
$ NotInstalled Cabal (GHCTargetVersion Nothing ver)
let cabalbin = binDir </> "cabal" <> exeExt
-- create link
let destL = targetFile
lift $ createLink destL cabalbin
liftIO (isShadowed cabalbin) >>= \case
Nothing -> pure ()
Just pa -> lift $ logWarn $ T.pack $ prettyHFError (ToolShadowed Cabal pa cabalbin ver)
pure ()
unsetCabal :: ( MonadMask m
, MonadReader env m
, HasDirs env
, MonadIO m)
=> m ()
unsetCabal = do
Dirs {..} <- getDirs
let cabalbin = binDir </> "cabal" <> exeExt
hideError doesNotExistErrorType $ rmLink cabalbin
----------------
--[ Rm cabal ]--
----------------
-- | Delete a cabal version. Will try to fix the @cabal@ symlink
-- after removal (e.g. setting it to an older version).
rmCabalVer :: ( MonadMask m
, MonadReader env m
, HasDirs env
, MonadThrow m
, HasLog env
, MonadIO m
, MonadFail m
, MonadCatch m
, MonadUnliftIO m
)
=> Version
-> Excepts '[NotInstalled] m ()
rmCabalVer ver = do
whenM (lift $ fmap not $ cabalInstalled ver) $ throwE (NotInstalled Cabal (GHCTargetVersion Nothing ver))
cSet <- lift cabalSet
Dirs {..} <- lift getDirs
let cabalFile = "cabal-" <> T.unpack (prettyVer ver) <> exeExt
lift $ hideError doesNotExistErrorType $ recycleFile (binDir </> cabalFile)
when (Just ver == cSet) $ do
cVers <- lift $ fmap rights getInstalledCabals
case headMay . reverse . sort $ cVers of
Just latestver -> setCabal latestver
Nothing -> lift $ rmLink (binDir </> "cabal" <> exeExt)