{-# LANGUAGE CPP #-} {-# LANGUAGE DataKinds #-} {-# LANGUAGE FlexibleContexts #-} {-# LANGUAGE FlexibleInstances #-} {-# LANGUAGE MultiParamTypeClasses #-} {-# LANGUAGE OverloadedStrings #-} {-# LANGUAGE TemplateHaskell #-} {-# LANGUAGE QuasiQuotes #-} {-| Module : GHCup Description : GHCup installation functions Copyright : (c) Julian Ospald, 2020 License : LGPL-3.0 Maintainer : hasufell@hasufell.de Stability : experimental Portability : portable This module contains the main functions that correspond to the command line interface, like installation, listing versions and so on. These are the entry points. -} module GHCup where import GHCup.Download import GHCup.Errors import GHCup.Platform import GHCup.Types import GHCup.Types.JSON ( ) import GHCup.Types.Optics import GHCup.Utils import GHCup.Utils.File import GHCup.Utils.Prelude import GHCup.Utils.String.QQ import GHCup.Utils.Version.QQ import GHCup.Version #if !defined(TAR) import Codec.Archive ( ArchiveResult ) #endif 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.Logger import Control.Monad.Reader import Control.Monad.Trans.Resource hiding ( throwM ) import Data.ByteString ( ByteString ) import Data.Either import Data.List import Data.List.Extra import Data.Maybe import Data.String ( fromString ) import Data.String.Interpolate import Data.Text ( Text ) import Data.Time.Clock import Data.Time.Format.ISO8601 import Data.Versions import GHC.IO.Exception import Haskus.Utils.Variant.Excepts import Optics import Prelude hiding ( abs , readFile , writeFile ) import Safe hiding ( at ) import System.Directory hiding ( findFiles ) import System.Environment import System.FilePath import System.IO.Error import Text.PrettyPrint.HughesPJClass ( prettyShow ) import Text.Regex.Posix import qualified Crypto.Hash.SHA256 as SHA256 import qualified Data.ByteString.Base16 as B16 import qualified Data.ByteString as B import qualified Data.ByteString.Lazy as BL import qualified Data.Map.Strict as Map import qualified Data.Text as T import qualified Data.Text.Encoding as E import qualified Text.Megaparsec as MP import GHCup.Utils.MegaParsec import Control.Concurrent (threadDelay) ------------------------- --[ Tool installation ]-- ------------------------- -- | Like 'installGHCBin', except takes the 'DownloadInfo' as -- argument instead of looking it up from 'GHCupDownloads'. installGHCBindist :: ( MonadFail m , MonadMask m , MonadCatch m , MonadReader AppState m , MonadLogger m , MonadResource m , MonadIO m , MonadUnliftIO m ) => DownloadInfo -- ^ where/how to download -> Version -- ^ the version to install -> Excepts '[ AlreadyInstalled , BuildFailed , DigestError , DownloadFailed , NoDownload , NotInstalled , UnknownArchive , TarDirDoesNotExist #if !defined(TAR) , ArchiveResult #endif ] m () installGHCBindist dlinfo ver = do AppState { dirs , settings } <- lift ask let tver = mkTVer ver lift $ $(logDebug) [i|Requested to install GHC with #{ver}|] whenM (lift $ ghcInstalled tver) (throwE $ AlreadyInstalled GHC ver) -- download (or use cached version) dl <- liftE $ downloadCached settings dirs dlinfo Nothing -- prepare paths ghcdir <- lift $ ghcupGHCDir tver toolchainSanityChecks liftE $ installPackedGHC dl (view dlSubdir dlinfo) ghcdir ver liftE $ postGHCInstall tver where toolchainSanityChecks = do r <- forM ["CC", "LD"] (liftIO . lookupEnv) case catMaybes r of [] -> pure () _ -> do lift $ $(logWarn) "CC/LD environment variable is set. This will change the compiler/linker" lift $ $(logWarn) "GHC uses internally and can cause defunct GHC in some cases (e.g. in Anaconda" lift $ $(logWarn) "environments). If you encounter problems, unset CC and LD and reinstall." -- | Install a packed GHC distribution. This only deals with unpacking and the GHC -- build system and nothing else. installPackedGHC :: ( MonadMask m , MonadCatch m , MonadReader AppState m , MonadThrow m , MonadLogger m , MonadIO m , MonadUnliftIO m ) => FilePath -- ^ Path to the packed GHC bindist -> Maybe TarDir -- ^ Subdir of the archive -> FilePath -- ^ Path to install to -> Version -- ^ The GHC version -> Excepts '[ BuildFailed , UnknownArchive , TarDirDoesNotExist #if !defined(TAR) , ArchiveResult #endif ] m () installPackedGHC dl msubdir inst ver = do AppState { pfreq = PlatformRequest {..} } <- lift ask -- unpack tmpUnpack <- lift mkGhcupTmpDir liftE $ unpackToDir tmpUnpack dl void $ lift $ darwinNotarization _rPlatform tmpUnpack -- the subdir of the archive where we do the work workdir <- maybe (pure tmpUnpack) (liftE . intoSubdir tmpUnpack) msubdir liftE $ runBuildAction tmpUnpack (Just inst) (installUnpackedGHC workdir inst ver) -- | Install an unpacked GHC distribution. This only deals with the GHC -- build system and nothing else. installUnpackedGHC :: ( MonadReader AppState m , MonadThrow m , MonadLogger m , MonadIO m ) => FilePath -- ^ Path to the unpacked GHC bindist (where the configure script resides) -> FilePath -- ^ Path to install to -> Version -- ^ The GHC version -> Excepts '[ProcessError] m () #if defined(IS_WINDOWS) installUnpackedGHC path inst _ = do lift $ $(logInfo) "Installing GHC (this may take a while)" -- windows bindists are relocatable and don't need -- to run configure liftIO $ copyDirectoryRecursive path inst #else installUnpackedGHC path inst ver = do AppState { pfreq = PlatformRequest {..} } <- lift ask let alpineArgs | ver >= [vver|8.2.2|], Linux Alpine <- _rPlatform = ["--disable-ld-override"] | otherwise = [] lift $ $(logInfo) "Installing GHC (this may take a while)" lEM $ execLogged "sh" ("./configure" : ("--prefix=" <> inst) #if defined(IS_WINDOWS) : "--enable-tarballs-autodownload" #endif : alpineArgs ) (Just path) "ghc-configure" Nothing lEM $ make ["install"] (Just path) pure () #endif -- | Installs GHC into @~\/.ghcup\/ghc/\@ and places the -- following symlinks in @~\/.ghcup\/bin@: -- -- * @ghc-x.y.z -> ..\/ghc\/x.y.z\/bin/ghc@ -- * @ghc-x.y -> ..\/ghc\/x.y.z\/bin/ghc@ (if x.y.z is the latest x.y version) installGHCBin :: ( MonadFail m , MonadMask m , MonadCatch m , MonadReader AppState m , MonadLogger m , MonadResource m , MonadIO m , MonadUnliftIO m ) => Version -- ^ the version to install -> Excepts '[ AlreadyInstalled , BuildFailed , DigestError , DownloadFailed , NoDownload , NotInstalled , UnknownArchive , TarDirDoesNotExist #if !defined(TAR) , ArchiveResult #endif ] m () installGHCBin ver = do AppState { pfreq , ghcupInfo = GHCupInfo { _ghcupDownloads = dls }} <- lift ask dlinfo <- lE $ getDownloadInfo GHC ver pfreq dls installGHCBindist dlinfo ver -- | Like 'installCabalBin', except takes the 'DownloadInfo' as -- argument instead of looking it up from 'GHCupDownloads'. installCabalBindist :: ( MonadMask m , MonadCatch m , MonadReader AppState m , MonadLogger m , MonadResource m , MonadIO m , MonadUnliftIO m , MonadFail m ) => DownloadInfo -> Version -> Excepts '[ AlreadyInstalled , CopyError , DigestError , DownloadFailed , NoDownload , NotInstalled , UnknownArchive , TarDirDoesNotExist #if !defined(TAR) , ArchiveResult #endif ] m () installCabalBindist dlinfo ver = do lift $ $(logDebug) [i|Requested to install cabal version #{ver}|] AppState { dirs = dirs@Dirs {..} , pfreq = PlatformRequest {..} , settings } <- lift ask whenM (lift (cabalInstalled ver) >>= \a -> liftIO $ handleIO (\_ -> pure False) $ fmap (\x -> a && x) -- ignore when the installation is a legacy cabal (binary, not symlink) $ pathIsLink (binDir "cabal" <> exeExt) ) (throwE $ AlreadyInstalled Cabal ver) -- download (or use cached version) dl <- liftE $ downloadCached settings dirs dlinfo Nothing -- unpack tmpUnpack <- lift withGHCupTmpDir liftE $ unpackToDir tmpUnpack dl void $ lift $ darwinNotarization _rPlatform tmpUnpack -- the subdir of the archive where we do the work workdir <- maybe (pure tmpUnpack) (liftE . intoSubdir tmpUnpack) (view dlSubdir dlinfo) liftE $ installCabal' workdir binDir -- create symlink if this is the latest version cVers <- lift $ fmap rights getInstalledCabals let lInstCabal = headMay . reverse . sort $ cVers when (maybe True (ver >=) lInstCabal) $ liftE $ setCabal ver where -- | Install an unpacked cabal distribution. installCabal' :: (MonadLogger m, MonadCatch m, MonadIO m) => FilePath -- ^ Path to the unpacked cabal bindist (where the executable resides) -> FilePath -- ^ Path to install to -> Excepts '[CopyError] m () installCabal' path inst = do lift $ $(logInfo) "Installing cabal" let cabalFile = "cabal" liftIO $ createDirRecursive' inst let destFileName = cabalFile <> "-" <> T.unpack (prettyVer ver) <> exeExt let destPath = inst destFileName handleIO (throwE . CopyError . show) $ liftIO $ copyFile (path cabalFile <> exeExt) destPath lift $ chmod_755 destPath -- | Installs cabal into @~\/.ghcup\/bin/cabal-\@ and -- creates a default @cabal -> cabal-x.y.z.q@ symlink for -- the latest installed version. installCabalBin :: ( MonadMask m , MonadCatch m , MonadReader AppState m , MonadLogger m , MonadResource m , MonadIO m , MonadUnliftIO m , MonadFail m ) => Version -> Excepts '[ AlreadyInstalled , CopyError , DigestError , DownloadFailed , NoDownload , NotInstalled , UnknownArchive , TarDirDoesNotExist #if !defined(TAR) , ArchiveResult #endif ] m () installCabalBin ver = do AppState { pfreq , ghcupInfo = GHCupInfo { _ghcupDownloads = dls }} <- lift ask dlinfo <- lE $ getDownloadInfo Cabal ver pfreq dls installCabalBindist dlinfo ver -- | Like 'installHLSBin, except takes the 'DownloadInfo' as -- argument instead of looking it up from 'GHCupDownloads'. installHLSBindist :: ( MonadMask m , MonadCatch m , MonadReader AppState m , MonadLogger m , MonadResource m , MonadIO m , MonadUnliftIO m , MonadFail m ) => DownloadInfo -> Version -> Excepts '[ AlreadyInstalled , CopyError , DigestError , DownloadFailed , NoDownload , NotInstalled , UnknownArchive , TarDirDoesNotExist #if !defined(TAR) , ArchiveResult #endif ] m () installHLSBindist dlinfo ver = do lift $ $(logDebug) [i|Requested to install hls version #{ver}|] AppState { dirs = dirs@Dirs {..} , pfreq = PlatformRequest {..} , settings } <- lift ask whenM (lift (hlsInstalled ver)) (throwE $ AlreadyInstalled HLS ver) -- download (or use cached version) dl <- liftE $ downloadCached settings dirs dlinfo Nothing -- unpack tmpUnpack <- lift withGHCupTmpDir liftE $ unpackToDir tmpUnpack dl void $ lift $ darwinNotarization _rPlatform tmpUnpack -- the subdir of the archive where we do the work workdir <- maybe (pure tmpUnpack) (liftE . intoSubdir tmpUnpack) (view dlSubdir dlinfo) liftE $ installHLS' workdir binDir -- create symlink if this is the latest version hlsVers <- lift $ fmap rights getInstalledHLSs let lInstHLS = headMay . reverse . sort $ hlsVers when (maybe True (ver >=) lInstHLS) $ liftE $ setHLS ver where -- | Install an unpacked hls distribution. installHLS' :: (MonadFail m, MonadLogger m, MonadCatch m, MonadIO m) => FilePath -- ^ Path to the unpacked hls bindist (where the executable resides) -> FilePath -- ^ Path to install to -> Excepts '[CopyError] m () installHLS' path inst = do lift $ $(logInfo) "Installing HLS" liftIO $ createDirRecursive' inst -- install haskell-language-server- bins@(_:_) <- liftIO $ findFiles path (makeRegexOpts compExtended execBlank ([s|^haskell-language-server-[0-9].*$|] :: ByteString) ) forM_ bins $ \f -> do let toF = dropSuffix exeExt f <> "~" <> T.unpack (prettyVer ver) <> exeExt handleIO (throwE . CopyError . show) $ liftIO $ copyFile (path f) (inst toF) lift $ chmod_755 (inst toF) -- install haskell-language-server-wrapper let wrapper = "haskell-language-server-wrapper" toF = wrapper <> "-" <> T.unpack (prettyVer ver) <> exeExt handleIO (throwE . CopyError . show) $ liftIO $ copyFile (path wrapper <> exeExt) (inst toF) lift $ chmod_755 (inst toF) -- | Installs hls binaries @haskell-language-server-\@ -- into @~\/.ghcup\/bin/@, as well as @haskell-languager-server-wrapper@. installHLSBin :: ( MonadMask m , MonadCatch m , MonadReader AppState m , MonadLogger m , MonadResource m , MonadIO m , MonadUnliftIO m , MonadFail m ) => Version -> Excepts '[ AlreadyInstalled , CopyError , DigestError , DownloadFailed , NoDownload , NotInstalled , UnknownArchive , TarDirDoesNotExist #if !defined(TAR) , ArchiveResult #endif ] m () installHLSBin ver = do AppState { pfreq , ghcupInfo = GHCupInfo { _ghcupDownloads = dls }} <- lift ask dlinfo <- lE $ getDownloadInfo HLS ver pfreq dls installHLSBindist dlinfo ver -- | Installs stack into @~\/.ghcup\/bin/stack-\@ and -- creates a default @stack -> stack-x.y.z.q@ symlink for -- the latest installed version. installStackBin :: ( MonadMask m , MonadCatch m , MonadReader AppState m , MonadLogger m , MonadResource m , MonadIO m , MonadUnliftIO m , MonadFail m ) => Version -> Excepts '[ AlreadyInstalled , CopyError , DigestError , DownloadFailed , NoDownload , NotInstalled , UnknownArchive , TarDirDoesNotExist #if !defined(TAR) , ArchiveResult #endif ] m () installStackBin ver = do AppState { pfreq, ghcupInfo = GHCupInfo { _ghcupDownloads = dls }} <- lift ask dlinfo <- lE $ getDownloadInfo Stack ver pfreq dls installStackBindist dlinfo ver -- | Like 'installStackBin', except takes the 'DownloadInfo' as -- argument instead of looking it up from 'GHCupDownloads'. installStackBindist :: ( MonadMask m , MonadCatch m , MonadReader AppState m , MonadLogger m , MonadResource m , MonadIO m , MonadUnliftIO m , MonadFail m ) => DownloadInfo -> Version -> Excepts '[ AlreadyInstalled , CopyError , DigestError , DownloadFailed , NoDownload , NotInstalled , UnknownArchive , TarDirDoesNotExist #if !defined(TAR) , ArchiveResult #endif ] m () installStackBindist dlinfo ver = do lift $ $(logDebug) [i|Requested to install stack version #{ver}|] AppState { dirs = dirs@Dirs {..} , pfreq = PlatformRequest {..} , settings } <- lift ask whenM (lift (hlsInstalled ver)) (throwE $ AlreadyInstalled Stack ver) -- download (or use cached version) dl <- liftE $ downloadCached settings dirs dlinfo Nothing -- unpack tmpUnpack <- lift withGHCupTmpDir liftE $ unpackToDir tmpUnpack dl void $ lift $ darwinNotarization _rPlatform tmpUnpack -- the subdir of the archive where we do the work workdir <- maybe (pure tmpUnpack) (liftE . intoSubdir tmpUnpack) (view dlSubdir dlinfo) liftE $ installStack' workdir binDir -- create symlink if this is the latest version sVers <- lift $ fmap rights getInstalledStacks let lInstStack = headMay . reverse . sort $ sVers when (maybe True (ver >=) lInstStack) $ liftE $ setStack ver where -- | Install an unpacked stack distribution. installStack' :: (MonadLogger m, MonadCatch m, MonadIO m) => FilePath -- ^ Path to the unpacked stack bindist (where the executable resides) -> FilePath -- ^ Path to install to -> Excepts '[CopyError] m () installStack' path inst = do lift $ $(logInfo) "Installing stack" let stackFile = "stack" liftIO $ createDirRecursive' inst let destFileName = stackFile <> "-" <> T.unpack (prettyVer ver) <> exeExt let destPath = inst destFileName handleIO (throwE . CopyError . show) $ liftIO $ copyFile (path stackFile <> exeExt) destPath lift $ chmod_755 destPath --------------------- --[ Set GHC/cabal ]-- --------------------- -- | Set GHC symlinks in @~\/.ghcup\/bin@ for the requested GHC version. The behavior depends -- on `SetGHC`: -- -- * SetGHCOnly: @~\/.ghcup\/bin\/ghc -> ~\/.ghcup\/ghc\/\\/bin\/ghc@ -- * SetGHC_XY: @~\/.ghcup\/bin\/ghc-X.Y -> ~\/.ghcup\/ghc\/\\/bin\/ghc@ -- * SetGHC_XYZ: @~\/.ghcup\/bin\/ghc-\ -> ~\/.ghcup\/ghc\/\\/bin\/ghc@ -- -- Additionally creates a @~\/.ghcup\/share -> ~\/.ghcup\/ghc\/\\/share symlink@ -- for 'SetGHCOnly' constructor. setGHC :: ( MonadReader AppState m , MonadLogger m , MonadThrow m , MonadFail m , MonadIO m , MonadCatch m , MonadMask m , MonadUnliftIO m ) => GHCTargetVersion -> SetGHC -> Excepts '[NotInstalled] m GHCTargetVersion setGHC ver sghc = do let verS = T.unpack $ prettyVer (_tvVersion ver) ghcdir <- lift $ ghcupGHCDir ver whenM (lift $ not <$> ghcInstalled ver) (throwE (NotInstalled GHC ver)) -- symlink destination AppState { dirs = Dirs {..} } <- lift ask liftIO $ createDirRecursive' binDir -- first delete the old symlinks (this fixes compatibility issues -- with old ghcup) case sghc of SetGHCOnly -> liftE $ rmPlain (_tvTarget ver) SetGHC_XY -> liftE $ rmMajorSymlinks ver SetGHC_XYZ -> liftE $ rmMinorSymlinks ver -- for ghc tools (ghc, ghci, haddock, ...) verfiles <- ghcToolFiles ver forM_ verfiles $ \file -> do mTargetFile <- case sghc of SetGHCOnly -> pure $ Just file SetGHC_XY -> do handle (\(e :: ParseError) -> lift $ $(logWarn) [i|#{e}|] >> pure Nothing) $ do (mj, mi) <- getMajorMinorV (_tvVersion ver) let major' = intToText mj <> "." <> intToText mi pure $ Just (file <> "-" <> T.unpack major') SetGHC_XYZ -> pure $ Just (file <> "-" <> verS) -- create symlink forM mTargetFile $ \targetFile -> do let fullF = binDir targetFile <> exeExt fileWithExt = file <> exeExt destL <- lift $ ghcLinkDestination fileWithExt ver lift $ createLink destL fullF -- create symlink for share dir when (isNothing . _tvTarget $ ver) $ lift $ symlinkShareDir ghcdir verS pure ver where symlinkShareDir :: (MonadReader AppState m, MonadIO m, MonadLogger m) => FilePath -> String -> m () symlinkShareDir ghcdir ver' = do AppState { dirs = Dirs {..} } <- ask let destdir = baseDir case sghc of SetGHCOnly -> do let sharedir = "share" let fullsharedir = ghcdir sharedir whenM (liftIO $ doesDirectoryExist fullsharedir) $ do let fullF = destdir sharedir let targetF = "." "ghc" ver' sharedir $(logDebug) [i|rm -f #{fullF}|] liftIO $ hideError doesNotExistErrorType $ removeDirectoryLink fullF $(logDebug) [i|ln -s #{targetF} #{fullF}|] liftIO #if defined(IS_WINDOWS) -- On windows we need to be more permissive -- in case symlinks can't be created, be just -- give up here. This symlink isn't strictly necessary. $ hideError permissionErrorType $ hideError illegalOperationErrorType #endif $ createDirectoryLink targetF fullF _ -> pure () -- | Set the @~\/.ghcup\/bin\/cabal@ symlink. setCabal :: ( MonadMask m , MonadReader AppState m , MonadLogger m , MonadThrow m , MonadFail m , MonadIO m , MonadUnliftIO m) => Version -> Excepts '[NotInstalled] m () setCabal ver = do let targetFile = "cabal-" <> T.unpack (prettyVer ver) <> exeExt -- symlink destination AppState {dirs = Dirs {..}} <- lift ask liftIO $ createDirRecursive' binDir 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 pure () -- | Set the haskell-language-server symlinks. setHLS :: ( MonadCatch m , MonadReader AppState m , MonadLogger m , MonadThrow m , MonadFail m , MonadIO m , MonadMask m , MonadUnliftIO m ) => Version -> Excepts '[NotInstalled] m () setHLS ver = do AppState { dirs = Dirs {..} } <- lift ask liftIO $ createDirRecursive' binDir -- Delete old symlinks, since these might have different ghc versions than the -- selected version, so we could end up with stray or incorrect symlinks. oldSyms <- lift hlsSymlinks forM_ oldSyms $ \f -> do lift $ $(logDebug) [i|rm #{binDir f}|] liftIO $ rmLink (binDir f) -- set haskell-language-server- symlinks bins <- lift $ hlsServerBinaries ver when (null bins) $ throwE $ NotInstalled HLS (GHCTargetVersion Nothing ver) forM_ bins $ \f -> do let destL = f let target = (<> exeExt) . head . splitOn "~" $ f lift $ createLink destL (binDir target) -- set haskell-language-server-wrapper symlink let destL = "haskell-language-server-wrapper-" <> T.unpack (prettyVer ver) <> exeExt let wrapper = binDir "haskell-language-server-wrapper" <> exeExt lift $ createLink destL wrapper pure () -- | Set the @~\/.ghcup\/bin\/stack@ symlink. setStack :: ( MonadMask m , MonadReader AppState m , MonadLogger m , 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 AppState {dirs = Dirs {..}} <- lift ask liftIO $ createDirRecursive' binDir whenM (liftIO $ not <$> doesFileExist (binDir targetFile)) $ throwE $ NotInstalled Stack (GHCTargetVersion Nothing ver) let stackbin = binDir "stack" <> exeExt lift $ createLink targetFile stackbin pure () ------------------ --[ List tools ]-- ------------------ -- | Filter data type for 'listVersions'. data ListCriteria = ListInstalled | ListSet deriving Show -- | A list result describes a single tool version -- and various of its properties. data ListResult = ListResult { lTool :: Tool , lVer :: Version , lCross :: Maybe Text -- ^ currently only for GHC , lTag :: [Tag] , lInstalled :: Bool , lSet :: Bool -- ^ currently active version , fromSrc :: Bool -- ^ compiled from source , lStray :: Bool -- ^ not in download info , lNoBindist :: Bool -- ^ whether the version is available for this platform/arch , hlsPowered :: Bool } deriving (Eq, Ord, Show) -- | Extract all available tool versions and their tags. availableToolVersions :: GHCupDownloads -> Tool -> Map.Map Version [Tag] availableToolVersions av tool = view (at tool % non Map.empty % to (fmap _viTags)) av -- | List all versions from the download info, as well as stray -- versions. listVersions :: ( MonadCatch m , MonadLogger m , MonadThrow m , MonadLogger m , MonadIO m , MonadReader AppState m ) => Maybe Tool -> Maybe ListCriteria -> m [ListResult] listVersions lt' criteria = do -- some annoying work to avoid too much repeated IO cSet <- cabalSet cabals <- getInstalledCabals' cSet hlsSet' <- hlsSet hlses <- getInstalledHLSs sSet <- stackSet stacks <- getInstalledStacks go lt' cSet cabals hlsSet' hlses sSet stacks where go lt cSet cabals hlsSet' hlses sSet stacks = do case lt of Just t -> do AppState { ghcupInfo = GHCupInfo { _ghcupDownloads = dls }} <- ask -- get versions from GHCupDownloads let avTools = availableToolVersions dls t lr <- filter' <$> forM (Map.toList avTools) (toListResult t cSet cabals hlsSet' hlses sSet stacks) case t of GHC -> do slr <- strayGHCs avTools pure (sort (slr ++ lr)) Cabal -> do slr <- strayCabals avTools cSet cabals pure (sort (slr ++ lr)) HLS -> do slr <- strayHLS avTools pure (sort (slr ++ lr)) Stack -> do slr <- strayStacks avTools pure (sort (slr ++ lr)) GHCup -> pure lr Nothing -> do ghcvers <- go (Just GHC) cSet cabals hlsSet' hlses sSet stacks cabalvers <- go (Just Cabal) cSet cabals hlsSet' hlses sSet stacks hlsvers <- go (Just HLS) cSet cabals hlsSet' hlses sSet stacks ghcupvers <- go (Just GHCup) cSet cabals hlsSet' hlses sSet stacks stackvers <- go (Just Stack) cSet cabals hlsSet' hlses sSet stacks pure (ghcvers <> cabalvers <> hlsvers <> stackvers <> ghcupvers) strayGHCs :: (MonadCatch m, MonadReader AppState m, MonadThrow m, MonadLogger m, MonadIO m) => Map.Map Version [Tag] -> m [ListResult] strayGHCs avTools = do ghcs <- getInstalledGHCs fmap catMaybes $ forM ghcs $ \case Right tver@GHCTargetVersion{ _tvTarget = Nothing, .. } -> do case Map.lookup _tvVersion avTools of Just _ -> pure Nothing Nothing -> do lSet <- fmap (maybe False (\(GHCTargetVersion _ v ) -> v == _tvVersion)) $ ghcSet Nothing fromSrc <- ghcSrcInstalled tver hlsPowered <- fmap (elem _tvVersion) hlsGHCVersions pure $ Just $ ListResult { lTool = GHC , lVer = _tvVersion , lCross = Nothing , lTag = [] , lInstalled = True , lStray = isNothing (Map.lookup _tvVersion avTools) , lNoBindist = False , .. } Right tver@GHCTargetVersion{ .. } -> do lSet <- fmap (maybe False (\(GHCTargetVersion _ v ) -> v == _tvVersion)) $ ghcSet _tvTarget fromSrc <- ghcSrcInstalled tver hlsPowered <- fmap (elem _tvVersion) hlsGHCVersions pure $ Just $ ListResult { lTool = GHC , lVer = _tvVersion , lCross = _tvTarget , lTag = [] , lInstalled = True , lStray = True -- NOTE: cross currently cannot be installed via bindist , lNoBindist = False , .. } Left e -> do $(logWarn) [i|Could not parse version of stray directory #{e}|] pure Nothing strayCabals :: (MonadReader AppState m, MonadCatch m, MonadThrow m, MonadLogger m, MonadIO m) => Map.Map Version [Tag] -> Maybe Version -> [Either FilePath Version] -> m [ListResult] strayCabals avTools cSet cabals = do fmap catMaybes $ forM cabals $ \case Right ver -> case Map.lookup ver avTools of Just _ -> pure Nothing Nothing -> do let lSet = cSet == Just ver pure $ Just $ ListResult { lTool = Cabal , lVer = ver , lCross = Nothing , lTag = [] , lInstalled = True , lStray = isNothing (Map.lookup ver avTools) , lNoBindist = False , fromSrc = False -- actually, we don't know :> , hlsPowered = False , .. } Left e -> do $(logWarn) [i|Could not parse version of stray directory #{e}|] pure Nothing strayHLS :: (MonadReader AppState m, MonadCatch m, MonadThrow m, MonadLogger m, MonadIO m) => Map.Map Version [Tag] -> m [ListResult] strayHLS avTools = do hlss <- getInstalledHLSs fmap catMaybes $ forM hlss $ \case Right ver -> case Map.lookup ver avTools of Just _ -> pure Nothing Nothing -> do lSet <- fmap (== Just ver) hlsSet pure $ Just $ ListResult { lTool = HLS , lVer = ver , lCross = Nothing , lTag = [] , lInstalled = True , lStray = isNothing (Map.lookup ver avTools) , lNoBindist = False , fromSrc = False -- actually, we don't know :> , hlsPowered = False , .. } Left e -> do $(logWarn) [i|Could not parse version of stray directory #{e}|] pure Nothing strayStacks :: (MonadReader AppState m, MonadCatch m, MonadThrow m, MonadLogger m, MonadIO m) => Map.Map Version [Tag] -> m [ListResult] strayStacks avTools = do stacks <- getInstalledStacks fmap catMaybes $ forM stacks $ \case Right ver -> case Map.lookup ver avTools of Just _ -> pure Nothing Nothing -> do lSet <- fmap (== Just ver) hlsSet pure $ Just $ ListResult { lTool = Stack , lVer = ver , lCross = Nothing , lTag = [] , lInstalled = True , lStray = isNothing (Map.lookup ver avTools) , lNoBindist = False , fromSrc = False -- actually, we don't know :> , hlsPowered = False , .. } Left e -> do $(logWarn) [i|Could not parse version of stray directory #{e}|] pure Nothing -- NOTE: this are not cross ones, because no bindists toListResult :: (MonadLogger m, MonadReader AppState m, MonadIO m, MonadCatch m) => Tool -> Maybe Version -> [Either FilePath Version] -> Maybe Version -> [Either FilePath Version] -> Maybe Version -> [Either FilePath Version] -> (Version, [Tag]) -> m ListResult toListResult t cSet cabals hlsSet' hlses stackSet' stacks (v, tags) = do AppState { pfreq , ghcupInfo = GHCupInfo { _ghcupDownloads = dls }} <- ask case t of GHC -> do let lNoBindist = isLeft $ getDownloadInfo GHC v pfreq dls let tver = mkTVer v lSet <- fmap (maybe False (\(GHCTargetVersion _ v') -> v' == v)) $ ghcSet Nothing lInstalled <- ghcInstalled tver fromSrc <- ghcSrcInstalled tver hlsPowered <- fmap (elem v) hlsGHCVersions pure ListResult { lVer = v, lCross = Nothing , lTag = tags, lTool = t, lStray = False, .. } Cabal -> do let lNoBindist = isLeft $ getDownloadInfo Cabal v pfreq dls let lSet = cSet == Just v let lInstalled = elem v $ rights cabals pure ListResult { lVer = v , lCross = Nothing , lTag = tags , lTool = t , fromSrc = False , lStray = False , hlsPowered = False , .. } GHCup -> do let lSet = prettyPVP ghcUpVer == prettyVer v let lInstalled = lSet pure ListResult { lVer = v , lTag = tags , lCross = Nothing , lTool = t , fromSrc = False , lStray = False , lNoBindist = False , hlsPowered = False , .. } HLS -> do let lNoBindist = isLeft $ getDownloadInfo HLS v pfreq dls let lSet = hlsSet' == Just v let lInstalled = elem v $ rights hlses pure ListResult { lVer = v , lCross = Nothing , lTag = tags , lTool = t , fromSrc = False , lStray = False , hlsPowered = False , .. } Stack -> do let lNoBindist = isLeft $ getDownloadInfo Stack v pfreq dls let lSet = stackSet' == Just v let lInstalled = elem v $ rights stacks pure ListResult { lVer = v , lCross = Nothing , lTag = tags , lTool = t , fromSrc = False , lStray = False , hlsPowered = False , .. } filter' :: [ListResult] -> [ListResult] filter' lr = case criteria of Nothing -> lr Just ListInstalled -> filter (\ListResult {..} -> lInstalled) lr Just ListSet -> filter (\ListResult {..} -> lSet) lr -------------------- --[ GHC/cabal rm ]-- -------------------- -- | Delete a ghc version and all its symlinks. -- -- This may leave GHCup without a "set" version. -- Will try to fix the ghc-x.y symlink after removal (e.g. to an -- older version). rmGHCVer :: ( MonadReader AppState m , MonadThrow m , MonadLogger m , MonadIO m , MonadFail m , MonadCatch m , MonadMask m , MonadUnliftIO m ) => GHCTargetVersion -> Excepts '[NotInstalled] m () rmGHCVer ver = do isSetGHC <- lift $ fmap (== Just ver) $ ghcSet (_tvTarget ver) whenM (lift $ fmap not $ ghcInstalled ver) (throwE (NotInstalled GHC ver)) dir <- lift $ ghcupGHCDir ver -- this isn't atomic, order matters when isSetGHC $ do lift $ $(logInfo) [i|Removing ghc symlinks|] liftE $ rmPlain (_tvTarget ver) lift $ $(logInfo) [i|Removing ghc-x.y.z symlinks|] liftE $ rmMinorSymlinks ver lift $ $(logInfo) [i|Removing/rewiring ghc-x.y symlinks|] -- first remove handle (\(_ :: ParseError) -> pure ()) $ liftE $ rmMajorSymlinks ver -- then fix them (e.g. with an earlier version) lift $ $(logInfo) [i|Removing directory recursively: #{dir}|] liftIO $ rmPath dir v' <- handle (\(e :: ParseError) -> lift $ $(logWarn) [i|#{e}|] >> pure Nothing) $ fmap Just $ getMajorMinorV (_tvVersion ver) forM_ v' $ \(mj, mi) -> lift (getGHCForMajor mj mi (_tvTarget ver)) >>= mapM_ (\v -> liftE $ setGHC v SetGHC_XY) AppState { dirs = Dirs {..} } <- lift ask liftIO $ hideError doesNotExistErrorType $ rmFile (baseDir "share") -- | 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 AppState m , MonadThrow m , MonadLogger m , 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 AppState {dirs = Dirs {..}} <- lift ask let cabalFile = "cabal-" <> T.unpack (prettyVer ver) <> exeExt liftIO $ hideError doesNotExistErrorType $ rmFile (binDir cabalFile) when (Just ver == cSet) $ do cVers <- lift $ fmap rights getInstalledCabals case headMay . reverse . sort $ cVers of Just latestver -> setCabal latestver Nothing -> liftIO $ rmLink (binDir "cabal" <> exeExt) -- | Delete a hls version. Will try to fix the hls symlinks -- after removal (e.g. setting it to an older version). rmHLSVer :: ( MonadMask m , MonadReader AppState m , MonadThrow m , MonadLogger m , MonadIO m , MonadFail m , MonadCatch m , MonadUnliftIO m ) => Version -> Excepts '[NotInstalled] m () rmHLSVer ver = do whenM (lift $ fmap not $ hlsInstalled ver) $ throwE (NotInstalled HLS (GHCTargetVersion Nothing ver)) isHlsSet <- lift hlsSet AppState {dirs = Dirs {..}} <- lift ask bins <- lift $ hlsAllBinaries ver forM_ bins $ \f -> liftIO $ rmFile (binDir f) when (Just ver == isHlsSet) $ do -- delete all set symlinks oldSyms <- lift hlsSymlinks forM_ oldSyms $ \f -> do let fullF = binDir f lift $ $(logDebug) [i|rm #{fullF}|] liftIO $ rmLink fullF -- set latest hls hlsVers <- lift $ fmap rights getInstalledHLSs case headMay . reverse . sort $ hlsVers of Just latestver -> setHLS latestver Nothing -> pure () -- | 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 AppState m , MonadThrow m , MonadLogger m , 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 AppState {dirs = Dirs {..}} <- lift ask let stackFile = "stack-" <> T.unpack (prettyVer ver) <> exeExt liftIO $ hideError doesNotExistErrorType $ rmFile (binDir stackFile) when (Just ver == sSet) $ do sVers <- lift $ fmap rights getInstalledStacks case headMay . reverse . sort $ sVers of Just latestver -> setStack latestver Nothing -> liftIO $ rmLink (binDir "stack" <> exeExt) ------------------ --[ Debug info ]-- ------------------ getDebugInfo :: (Alternative m, MonadFail m, MonadReader AppState m, MonadLogger m, MonadCatch m, MonadIO m) => Excepts '[NoCompatiblePlatform , NoCompatibleArch , DistroNotFound] m DebugInfo getDebugInfo = do AppState {dirs = Dirs {..}} <- lift ask let diBaseDir = baseDir let diBinDir = binDir diGHCDir <- lift ghcupGHCBaseDir let diCacheDir = cacheDir diArch <- lE getArchitecture diPlatform <- liftE getPlatform pure $ DebugInfo { .. } --------------- --[ Compile ]-- --------------- -- | Compile a GHC from source. This behaves wrt symlinks and installation -- the same as 'installGHCBin'. compileGHC :: ( MonadMask m , MonadReader AppState m , MonadThrow m , MonadResource m , MonadLogger m , MonadIO m , MonadUnliftIO m , MonadFail m ) => Either GHCTargetVersion GitBranch -- ^ version to install -> Either Version FilePath -- ^ version to bootstrap with -> Maybe Int -- ^ jobs -> Maybe FilePath -- ^ build config -> Maybe FilePath -- ^ patch directory -> [Text] -- ^ additional args to ./configure -> Excepts '[ AlreadyInstalled , BuildFailed , DigestError , DownloadFailed , GHCupSetError , NoDownload , NotFoundInPATH , PatchFailed , UnknownArchive , TarDirDoesNotExist , NotInstalled #if !defined(TAR) , ArchiveResult #endif ] m GHCTargetVersion compileGHC targetGhc bstrap jobs mbuildConfig patchdir aargs = do AppState { pfreq = PlatformRequest {..} , ghcupInfo = GHCupInfo { _ghcupDownloads = dls } , settings , dirs } <- lift ask (workdir, tmpUnpack, tver) <- case targetGhc of -- unpack from version tarball Left tver -> do lift $ $(logDebug) [i|Requested to compile: #{tver} with #{bstrap}|] -- download source tarball dlInfo <- preview (ix GHC % ix (tver ^. tvVersion) % viSourceDL % _Just) dls ?? NoDownload dl <- liftE $ downloadCached settings dirs dlInfo Nothing -- unpack tmpUnpack <- lift mkGhcupTmpDir liftE $ unpackToDir tmpUnpack dl void $ lift $ darwinNotarization _rPlatform tmpUnpack workdir <- maybe (pure tmpUnpack) (liftE . intoSubdir tmpUnpack) (view dlSubdir dlInfo) pure (workdir, tmpUnpack, tver) -- clone from git Right GitBranch{..} -> do tmpUnpack <- lift mkGhcupTmpDir let git args = execLogged "git" ("--no-pager":args) (Just tmpUnpack) "git" Nothing tver <- reThrowAll @_ @'[ProcessError] DownloadFailed $ do let rep = fromMaybe "https://gitlab.haskell.org/ghc/ghc.git" repo lift $ $(logInfo) [i|Fetching git repo #{rep} at ref #{ref} (this may take a while)|] lEM $ git [ "init" ] lEM $ git [ "remote" , "add" , "origin" , fromString rep ] let fetch_args = [ "fetch" , "--depth" , "1" , "--quiet" , "origin" , fromString ref ] lEM $ git fetch_args lEM $ git [ "checkout", "FETCH_HEAD" ] lEM $ git [ "submodule", "update", "--init", "--depth", "1" ] lEM $ execLogged "sh" ["./boot"] (Just tmpUnpack) "ghc-bootstrap" Nothing lEM $ execLogged "sh" ["./configure"] (Just tmpUnpack) "ghc-bootstrap" Nothing CapturedProcess {..} <- lift $ makeOut ["show!", "--quiet", "VALUE=ProjectVersion" ] (Just tmpUnpack) case _exitCode of ExitSuccess -> throwEither . MP.parse ghcProjectVersion "" . decUTF8Safe' $ _stdOut ExitFailure c -> fail ("Could not figure out GHC project version. Exit code was: " <> show c <> ". Error was: " <> T.unpack (decUTF8Safe' _stdErr)) void $ lift $ darwinNotarization _rPlatform tmpUnpack lift $ $(logInfo) [i|Git version #{ref} corresponds to GHC version #{prettyVer tver}|] pure (tmpUnpack, tmpUnpack, GHCTargetVersion Nothing tver) alreadyInstalled <- lift $ ghcInstalled tver alreadySet <- fmap (== Just tver) $ lift $ ghcSet (_tvTarget tver) when alreadyInstalled $ do lift $ $(logWarn) [i|GHC #{prettyShow tver} already installed. Will overwrite existing version.|] lift $ $(logWarn) "...waiting for 10 seconds before continuing, you can still abort..." liftIO $ threadDelay 10000000 -- give the user a sec to intervene ghcdir <- lift $ ghcupGHCDir tver bghc <- case bstrap of Right g -> pure $ Right g Left bver -> pure $ Left ("ghc-" <> (T.unpack . prettyVer $ bver) <> exeExt) (bindist, bmk) <- liftE $ runBuildAction tmpUnpack Nothing (do b <- compileBindist bghc tver workdir bmk <- liftIO $ B.readFile (build_mk workdir) pure (b, bmk) ) when alreadyInstalled $ do lift $ $(logInfo) [i|Deleting existing installation|] liftE $ rmGHCVer tver liftE $ installPackedGHC bindist (Just $ RegexDir "ghc-.*") ghcdir (tver ^. tvVersion) liftIO $ B.writeFile (ghcdir ghcUpSrcBuiltFile) bmk reThrowAll GHCupSetError $ postGHCInstall tver -- restore when alreadySet $ liftE $ void $ setGHC tver SetGHCOnly pure tver where defaultConf = case targetGhc of Left (GHCTargetVersion (Just _) _) -> [s| V=0 BUILD_MAN = NO BUILD_SPHINX_HTML = NO BUILD_SPHINX_PDF = NO HADDOCK_DOCS = NO Stage1Only = YES|] _ -> [s| V=0 BUILD_MAN = NO BUILD_SPHINX_HTML = NO BUILD_SPHINX_PDF = NO HADDOCK_DOCS = YES|] compileBindist :: ( MonadReader AppState m , MonadThrow m , MonadCatch m , MonadLogger m , MonadIO m , MonadFail m ) => Either FilePath FilePath -> GHCTargetVersion -> FilePath -> Excepts '[FileDoesNotExistError, InvalidBuildConfig, PatchFailed, ProcessError, NotFoundInPATH, CopyError] m FilePath -- ^ output path of bindist compileBindist bghc tver workdir = do lift $ $(logInfo) [i|configuring build|] liftE checkBuildConfig AppState { dirs = Dirs {..}, pfreq } <- lift ask forM_ patchdir $ \dir -> liftE $ applyPatches dir workdir cEnv <- liftIO getEnvironment if | _tvVersion tver >= [vver|8.8.0|] -> do bghcPath <- case bghc of Right ghc' -> pure ghc' Left bver -> do spaths <- liftIO getSearchPath liftIO (searchPath spaths bver) !? NotFoundInPATH bver lEM $ execLogged "sh" ("./configure" : maybe mempty (\x -> ["--target=" <> T.unpack x]) (_tvTarget tver) #if defined(IS_WINDOWS) ++ ["--enable-tarballs-autodownload"] #endif ++ fmap T.unpack aargs ) (Just workdir) "ghc-conf" (Just (("GHC", bghcPath) : cEnv)) | otherwise -> do lEM $ execLogged "sh" ( [ "./configure", "--with-ghc=" <> either id id bghc ] ++ maybe mempty (\x -> ["--target=" <> T.unpack x]) (_tvTarget tver) #if defined(IS_WINDOWS) ++ ["--enable-tarballs-autodownload"] #endif ++ fmap T.unpack aargs ) (Just workdir) "ghc-conf" (Just cEnv) case mbuildConfig of Just bc -> liftIOException doesNotExistErrorType (FileDoesNotExistError bc) (liftIO $ copyFile bc (build_mk workdir)) Nothing -> liftIO $ B.writeFile (build_mk workdir) defaultConf lift $ $(logInfo) [i|Building (this may take a while)...|] lEM $ make (maybe [] (\j -> ["-j" <> fS (show j)]) jobs) (Just workdir) lift $ $(logInfo) [i|Creating bindist...|] lEM $ make ["binary-dist"] (Just workdir) [tar] <- liftIO $ findFiles workdir (makeRegexOpts compExtended execBlank ([s|^ghc-.*\.tar\..*$|] :: ByteString) ) c <- liftIO $ BL.readFile (workdir tar) cDigest <- fmap (T.take 8) . lift . throwEither . E.decodeUtf8' . B16.encode . SHA256.hashlazy $ c cTime <- liftIO getCurrentTime let tarName = makeValid [i|ghc-#{tVerToText tver}-#{pfReqToString pfreq}-#{iso8601Show cTime}-#{cDigest}.tar#{takeExtension tar}|] let tarPath = cacheDir tarName handleIO (throwE . CopyError . show) $ liftIO $ copyFile (workdir tar) tarPath lift $ $(logInfo) [i|Copied bindist to #{tarPath}|] pure tarPath build_mk workdir = workdir "mk" "build.mk" checkBuildConfig :: (MonadCatch m, MonadIO m) => Excepts '[FileDoesNotExistError, InvalidBuildConfig] m () checkBuildConfig = do c <- case mbuildConfig of Just bc -> do liftIOException doesNotExistErrorType (FileDoesNotExistError bc) (liftIO $ B.readFile bc) Nothing -> pure defaultConf let lines' = fmap T.strip . T.lines $ decUTF8Safe c -- for cross, we need Stage1Only case targetGhc of Left (GHCTargetVersion (Just _) _) -> when ("Stage1Only = YES" `notElem` lines') $ throwE (InvalidBuildConfig [s|Cross compiling needs to be a Stage1 build, add "Stage1Only = YES" to your config!|] ) _ -> pure () --------------------- --[ Upgrade GHCup ]-- --------------------- -- | Upgrade ghcup and place it in @~\/.ghcup\/bin\/ghcup@, -- if no path is provided. upgradeGHCup :: ( MonadMask m , MonadReader AppState m , MonadCatch m , MonadLogger m , MonadThrow m , MonadResource m , MonadIO m , MonadUnliftIO m ) => Maybe FilePath -- ^ full file destination to write ghcup into -> Bool -- ^ whether to force update regardless -- of currently installed version -> Excepts '[ CopyError , DigestError , DownloadFailed , NoDownload , NoUpdate ] m Version upgradeGHCup mtarget force = do AppState { dirs = Dirs {..} , pfreq , ghcupInfo = GHCupInfo { _ghcupDownloads = dls } , settings } <- lift ask lift $ $(logInfo) [i|Upgrading GHCup...|] let latestVer = fromJust $ fst <$> getLatest dls GHCup when (not force && (latestVer <= pvpToVersion ghcUpVer)) $ throwE NoUpdate dli <- lE $ getDownloadInfo GHCup latestVer pfreq dls tmp <- lift withGHCupTmpDir let fn = "ghcup" <> exeExt p <- liftE $ download settings dli tmp (Just fn) let destDir = takeDirectory destFile destFile = fromMaybe (binDir fn) mtarget lift $ $(logDebug) [i|mkdir -p #{destDir}|] liftIO $ createDirRecursive' destDir lift $ $(logDebug) [i|rm -f #{destFile}|] liftIO $ hideError NoSuchThing $ rmFile destFile lift $ $(logDebug) [i|cp #{p} #{destFile}|] handleIO (throwE . CopyError . show) $ liftIO $ copyFile p destFile lift $ chmod_755 destFile liftIO (isInPath destFile) >>= \b -> unless b $ lift $ $(logWarn) [i|"#{takeFileName destFile}" is not in PATH! You have to add it in order to use ghcup.|] liftIO (isShadowed destFile) >>= \case Nothing -> pure () Just pa -> lift $ $(logWarn) [i|ghcup is shadowed by "#{pa}". The upgrade will not be in effect, unless you remove "#{pa}" or make sure "#{destDir}" comes before "#{takeFileName pa}" in PATH.|] pure latestVer ------------- --[ Other ]-- ------------- -- | Creates @ghc-x.y.z@ and @ghc-x.y@ symlinks. This is used for -- both installing from source and bindist. postGHCInstall :: ( MonadReader AppState m , MonadLogger m , MonadThrow m , MonadFail m , MonadIO m , MonadCatch m , MonadMask m , MonadUnliftIO m ) => GHCTargetVersion -> Excepts '[NotInstalled] m () postGHCInstall ver@GHCTargetVersion {..} = do void $ liftE $ setGHC ver SetGHC_XYZ -- Create ghc-x.y symlinks. This may not be the current -- version, create it regardless. v' <- handle (\(e :: ParseError) -> lift $ $(logWarn) [i|#{e}|] >> pure Nothing) $ fmap Just $ getMajorMinorV _tvVersion forM_ v' $ \(mj, mi) -> lift (getGHCForMajor mj mi _tvTarget) >>= mapM_ (\v -> liftE $ setGHC v SetGHC_XY)