module Stack.Setup
( setupEnv
, ensureCompiler
, ensureDockerStackExe
, getSystemCompiler
, SetupOpts (..)
, defaultStackSetupYaml
, removeHaskellEnvVars
) where
import Control.Applicative
import Control.Exception.Enclosed (catchIO, tryAny)
import Control.Monad (liftM, when, join, void, unless)
import Control.Monad.Catch
import Control.Monad.IO.Class (MonadIO, liftIO)
import Control.Monad.Logger
import Control.Monad.Reader (MonadReader, ReaderT (..), asks)
import Control.Monad.State (get, put, modify)
import Control.Monad.Trans.Control
import "cryptohash" Crypto.Hash (SHA1(SHA1))
import Data.Aeson.Extended
import qualified Data.ByteString as S
import qualified Data.ByteString.Char8 as S8
import qualified Data.ByteString.Lazy as LBS
import Data.Char (isSpace)
import Data.Conduit (Conduit, ($$), (=$), await, yield, awaitForever)
import qualified Data.Conduit.Binary as CB
import Data.Conduit.Lift (evalStateC)
import qualified Data.Conduit.List as CL
import Data.Either
import Data.Foldable hiding (concatMap, or, maximum)
import Data.IORef
import Data.IORef.RunOnce (runOnce)
import Data.List hiding (concat, elem, maximumBy, any)
import Data.Map (Map)
import qualified Data.Map as Map
import Data.Maybe
import Data.Monoid
import Data.Ord (comparing)
import Data.Set (Set)
import qualified Data.Set as Set
import Data.Text (Text)
import qualified Data.Text as T
import qualified Data.Text.Encoding as T
import qualified Data.Text.Encoding.Error as T
import Data.Time.Clock (NominalDiffTime, diffUTCTime, getCurrentTime)
import Data.Typeable (Typeable)
import qualified Data.Yaml as Yaml
import Distribution.System (OS, Arch (..), Platform (..))
import qualified Distribution.System as Cabal
import Distribution.Text (simpleParse)
import Language.Haskell.TH as TH
import Network.HTTP.Client.Conduit
import Network.HTTP.Download.Verified
import Path
import Path.Extra (toFilePathNoTrailingSep)
import Path.IO hiding (findExecutable)
import qualified Paths_stack as Meta
import Prelude hiding (concat, elem, any)
import Safe (readMay)
import Stack.Build (build)
import Stack.Config (resolvePackageEntry, loadConfig)
import Stack.Constants (distRelativeDir, stackProgName)
import Stack.Exec (defaultEnvSettings)
import Stack.Fetch
import Stack.GhcPkg (createDatabase, getCabalPkgVer, getGlobalDB, mkGhcPackagePath)
import Stack.Setup.Installed
import Stack.Types
import Stack.Types.Internal (HasTerminal, HasReExec, HasLogLevel)
import Stack.Types.StackT
import qualified System.Directory as D
import System.Environment (getExecutablePath)
import System.Exit (ExitCode (ExitSuccess))
import System.FilePath (searchPathSeparator)
import qualified System.FilePath as FP
import System.Process (rawSystem)
import System.Process.Read
import System.Process.Run (runCmd, Cmd(..))
import Text.Printf (printf)
defaultStackSetupYaml :: String
defaultStackSetupYaml =
"https://raw.githubusercontent.com/fpco/stackage-content/master/stack/stack-setup-2.yaml"
data SetupOpts = SetupOpts
{ soptsInstallIfMissing :: !Bool
, soptsUseSystem :: !Bool
, soptsWantedCompiler :: !CompilerVersion
, soptsCompilerCheck :: !VersionCheck
, soptsStackYaml :: !(Maybe (Path Abs File))
, soptsForceReinstall :: !Bool
, soptsSanityCheck :: !Bool
, soptsSkipGhcCheck :: !Bool
, soptsSkipMsys :: !Bool
, soptsUpgradeCabal :: !Bool
, soptsResolveMissingGHC :: !(Maybe Text)
, soptsStackSetupYaml :: !FilePath
, soptsGHCBindistURL :: !(Maybe String)
}
deriving Show
data SetupException = UnsupportedSetupCombo OS Arch
| MissingDependencies [String]
| UnknownCompilerVersion Text CompilerVersion [CompilerVersion]
| UnknownOSKey Text
| GHCSanityCheckCompileFailed ReadProcessException (Path Abs File)
| WantedMustBeGHC
| RequireCustomGHCVariant
| ProblemWhileDecompressing (Path Abs File)
| SetupInfoMissingSevenz
| GHCJSRequiresStandardVariant
| GHCJSNotBooted
| DockerStackExeNotFound Version Text
deriving Typeable
instance Exception SetupException
instance Show SetupException where
show (UnsupportedSetupCombo os arch) = concat
[ "I don't know how to install GHC for "
, show (os, arch)
, ", please install manually"
]
show (MissingDependencies tools) =
"The following executables are missing and must be installed: " ++
intercalate ", " tools
show (UnknownCompilerVersion oskey wanted known) = concat
[ "No information found for "
, compilerVersionString wanted
, ".\nSupported versions for OS key '" ++ T.unpack oskey ++ "': "
, intercalate ", " (map show known)
]
show (UnknownOSKey oskey) =
"Unable to find installation URLs for OS key: " ++
T.unpack oskey
show (GHCSanityCheckCompileFailed e ghc) = concat
[ "The GHC located at "
, toFilePath ghc
, " failed to compile a sanity check. Please see:\n\n"
, " http://docs.haskellstack.org/en/stable/install_and_upgrade/\n\n"
, "for more information. Exception was:\n"
, show e
]
show WantedMustBeGHC =
"The wanted compiler must be GHC"
show RequireCustomGHCVariant =
"A custom --ghc-variant must be specified to use --ghc-bindist"
show (ProblemWhileDecompressing archive) =
"Problem while decompressing " ++ toFilePath archive
show SetupInfoMissingSevenz =
"SetupInfo missing Sevenz EXE/DLL"
show GHCJSRequiresStandardVariant =
"stack does not yet support using --ghc-variant with GHCJS"
show GHCJSNotBooted =
"GHCJS does not yet have its boot packages installed. Use \"stack setup\" to attempt to run ghcjs-boot."
show (DockerStackExeNotFound stackVersion osKey) = concat
[ stackProgName
, "-"
, versionString stackVersion
, " executable not found for "
, T.unpack osKey
, "\nUse the '"
, T.unpack dockerStackExeArgName
, "' option to specify a location"]
setupEnv :: (MonadIO m, MonadMask m, MonadLogger m, MonadReader env m, HasBuildConfig env, HasHttpManager env, HasTerminal env, HasReExec env, HasLogLevel env, HasGHCVariant env, MonadBaseControl IO m)
=> Maybe Text
-> m EnvConfig
setupEnv mResolveMissingGHC = do
bconfig <- asks getBuildConfig
let platform = getPlatform bconfig
wc = whichCompiler (bcWantedCompiler bconfig)
sopts = SetupOpts
{ soptsInstallIfMissing = configInstallGHC $ bcConfig bconfig
, soptsUseSystem = configSystemGHC $ bcConfig bconfig
, soptsWantedCompiler = bcWantedCompiler bconfig
, soptsCompilerCheck = configCompilerCheck $ bcConfig bconfig
, soptsStackYaml = Just $ bcStackYaml bconfig
, soptsForceReinstall = False
, soptsSanityCheck = False
, soptsSkipGhcCheck = configSkipGHCCheck $ bcConfig bconfig
, soptsSkipMsys = configSkipMsys $ bcConfig bconfig
, soptsUpgradeCabal = False
, soptsResolveMissingGHC = mResolveMissingGHC
, soptsStackSetupYaml = defaultStackSetupYaml
, soptsGHCBindistURL = Nothing
}
mghcBin <- ensureCompiler sopts
menv0 <- getMinimalEnvOverride
env <- removeHaskellEnvVars
<$> augmentPathMap (maybe [] edBins mghcBin) (unEnvOverride menv0)
menv <- mkEnvOverride platform env
compilerVer <- getCompilerVersion menv wc
cabalVer <- getCabalPkgVer menv wc
packages <- mapM
(resolvePackageEntry menv (bcRoot bconfig))
(bcPackageEntries bconfig)
let envConfig0 = EnvConfig
{ envConfigBuildConfig = bconfig
, envConfigCabalVersion = cabalVer
, envConfigCompilerVersion = compilerVer
, envConfigPackages = Map.fromList $ concat packages
}
mkDirs <- runReaderT extraBinDirs envConfig0
let mpath = Map.lookup "PATH" env
mkDirs' = map toFilePath . mkDirs
depsPath <- augmentPath (mkDirs' False) mpath
localsPath <- augmentPath (mkDirs' True) mpath
deps <- runReaderT packageDatabaseDeps envConfig0
createDatabase menv wc deps
localdb <- runReaderT packageDatabaseLocal envConfig0
createDatabase menv wc localdb
globaldb <- getGlobalDB menv wc
extras <- runReaderT packageDatabaseExtra envConfig0
let mkGPP locals = mkGhcPackagePath locals localdb deps extras globaldb
distDir <- runReaderT distRelativeDir envConfig0
executablePath <- liftIO getExecutablePath
utf8EnvVars <- getUtf8EnvVars menv compilerVer
envRef <- liftIO $ newIORef Map.empty
let getEnvOverride' es = do
m <- readIORef envRef
case Map.lookup es m of
Just eo -> return eo
Nothing -> do
eo <- mkEnvOverride platform
$ Map.insert "PATH" (if esIncludeLocals es then localsPath else depsPath)
$ (if esIncludeGhcPackagePath es
then Map.insert
(case wc of { Ghc -> "GHC_PACKAGE_PATH"; Ghcjs -> "GHCJS_PACKAGE_PATH" })
(mkGPP (esIncludeLocals es))
else id)
$ (if esStackExe es
then Map.insert "STACK_EXE" (T.pack executablePath)
else id)
$ (if esLocaleUtf8 es
then Map.union utf8EnvVars
else id)
$ Map.insert "HASKELL_PACKAGE_SANDBOX" (T.pack $ toFilePathNoTrailingSep deps)
$ Map.insert "HASKELL_PACKAGE_SANDBOXES"
(T.pack $ if esIncludeLocals es
then intercalate [searchPathSeparator]
[ toFilePathNoTrailingSep localdb
, toFilePathNoTrailingSep deps
, ""
]
else intercalate [searchPathSeparator]
[ toFilePathNoTrailingSep deps
, ""
])
$ Map.insert "HASKELL_DIST_DIR" (T.pack $ toFilePathNoTrailingSep distDir) env
() <- atomicModifyIORef envRef $ \m' ->
(Map.insert es eo m', ())
return eo
return EnvConfig
{ envConfigBuildConfig = bconfig
{ bcConfig = maybe id addIncludeLib mghcBin
(bcConfig bconfig)
{ configEnvOverride = getEnvOverride' }
}
, envConfigCabalVersion = cabalVer
, envConfigCompilerVersion = compilerVer
, envConfigPackages = envConfigPackages envConfig0
}
addIncludeLib :: ExtraDirs -> Config -> Config
addIncludeLib (ExtraDirs _bins includes libs) config = config
{ configExtraIncludeDirs = Set.union
(configExtraIncludeDirs config)
(Set.fromList $ map T.pack includes)
, configExtraLibDirs = Set.union
(configExtraLibDirs config)
(Set.fromList $ map T.pack libs)
}
ensureCompiler :: (MonadIO m, MonadMask m, MonadLogger m, MonadReader env m, HasConfig env, HasHttpManager env, HasTerminal env, HasReExec env, HasLogLevel env, HasGHCVariant env, MonadBaseControl IO m)
=> SetupOpts
-> m (Maybe ExtraDirs)
ensureCompiler sopts = do
let wc = whichCompiler (soptsWantedCompiler sopts)
when (getGhcVersion (soptsWantedCompiler sopts) < $(mkVersion "7.8")) $ do
$logWarn "stack will almost certainly fail with GHC below version 7.8"
$logWarn "Valiantly attempting to run anyway, but I know this is doomed"
$logWarn "For more information, see: https://github.com/commercialhaskell/stack/issues/648"
$logWarn ""
menv0 <- getMinimalEnvOverride
msystem <-
if soptsUseSystem sopts
then getSystemCompiler menv0 wc
else return Nothing
Platform expectedArch _ <- asks getPlatform
let needLocal = case msystem of
Nothing -> True
Just _ | soptsSkipGhcCheck sopts -> False
Just (system, arch) ->
not (isWanted system) ||
arch /= expectedArch
isWanted = isWantedCompiler (soptsCompilerCheck sopts) (soptsWantedCompiler sopts)
mtools <- if needLocal
then do
getSetupInfo' <- runOnce (getSetupInfo (soptsStackSetupYaml sopts) =<< asks getHttpManager)
localPrograms <- asks $ configLocalPrograms . getConfig
installed <- listInstalled localPrograms
ghcVariant <- asks getGHCVariant
config <- asks getConfig
ghcPkgName <- parsePackageNameFromString ("ghc" ++ ghcVariantSuffix ghcVariant)
let installedCompiler =
case wc of
Ghc -> getInstalledTool installed ghcPkgName (isWanted . GhcVersion)
Ghcjs -> getInstalledGhcjs installed isWanted
compilerTool <- case installedCompiler of
Just tool -> return tool
Nothing
| soptsInstallIfMissing sopts -> do
si <- getSetupInfo'
downloadAndInstallCompiler
si
(soptsWantedCompiler sopts)
(soptsCompilerCheck sopts)
(soptsGHCBindistURL sopts)
| otherwise ->
throwM $ CompilerVersionMismatch
msystem
(soptsWantedCompiler sopts, expectedArch)
ghcVariant
(soptsCompilerCheck sopts)
(soptsStackYaml sopts)
(fromMaybe
("Try running \"stack setup\" to install the correct GHC into "
<> T.pack (toFilePath (configLocalPrograms config)))
$ soptsResolveMissingGHC sopts)
platform <- asks getPlatform
mmsys2Tool <- case platform of
Platform _ Cabal.Windows | not (soptsSkipMsys sopts) ->
case getInstalledTool installed $(mkPackageName "msys2") (const True) of
Just tool -> return (Just tool)
Nothing
| soptsInstallIfMissing sopts -> do
si <- getSetupInfo'
osKey <- getOSKey platform
VersionedDownloadInfo version info <-
case Map.lookup osKey $ siMsys2 si of
Just x -> return x
Nothing -> error $ "MSYS2 not found for " ++ T.unpack osKey
let tool = Tool (PackageIdentifier $(mkPackageName "msys2") version)
Just <$> downloadAndInstallTool (configLocalPrograms config) si info tool (installMsys2Windows osKey)
| otherwise -> do
$logWarn "Continuing despite missing tool: msys2"
return Nothing
_ -> return Nothing
return $ Just (compilerTool, mmsys2Tool)
else return Nothing
mpaths <- case mtools of
Nothing -> return Nothing
Just (compilerTool, mmsys2Tool) -> do
let idents = catMaybes [Just compilerTool, mmsys2Tool]
paths <- mapM extraDirs idents
return $ Just $ mconcat paths
menv <-
case mpaths of
Nothing -> return menv0
Just ed -> do
config <- asks getConfig
m <- augmentPathMap (edBins ed) (unEnvOverride menv0)
mkEnvOverride (configPlatform config) (removeHaskellEnvVars m)
when (soptsUpgradeCabal sopts) $ do
unless needLocal $ do
$logWarn "Trying to upgrade Cabal library on a GHC not installed by stack."
$logWarn "This may fail, caveat emptor!"
upgradeCabal menv wc
case mtools of
Just (ToolGhcjs cv, _) -> ensureGhcjsBooted menv cv (soptsInstallIfMissing sopts)
_ -> return ()
when (soptsSanityCheck sopts) $ sanityCheck menv wc
return mpaths
ensureDockerStackExe
:: (MonadIO m, MonadMask m, MonadLogger m, MonadReader env m, HasConfig env, HasHttpManager env, MonadBaseControl IO m)
=> Platform -> m (Path Abs File)
ensureDockerStackExe containerPlatform = do
config <- asks getConfig
containerPlatformDir <- runReaderT platformOnlyRelDir (containerPlatform,PlatformVariantNone)
let programsPath = configLocalProgramsBase config </> containerPlatformDir
stackVersion = fromCabalVersion Meta.version
tool = Tool (PackageIdentifier $(mkPackageName "stack") stackVersion)
stackExePath <- (</> $(mkRelFile "stack")) <$> installDir programsPath tool
stackExeExists <- doesFileExist stackExePath
unless stackExeExists $
do
$logInfo $ mconcat ["Downloading Docker-compatible ", T.pack stackProgName, " executable"]
si <- getSetupInfo defaultStackSetupYaml =<< asks getHttpManager
osKey <- getOSKey containerPlatform
info <-
case Map.lookup osKey (siStack si) of
Just versions ->
case Map.lookup stackVersion versions of
Just x -> return x
Nothing -> throwM (DockerStackExeNotFound stackVersion osKey)
Nothing -> throwM (DockerStackExeNotFound stackVersion osKey)
_ <-
downloadAndInstallTool
programsPath
si
info
tool
installDockerStackExe
return ()
return stackExePath
upgradeCabal :: (MonadIO m, MonadLogger m, MonadReader env m, HasHttpManager env, HasConfig env, MonadBaseControl IO m, MonadMask m)
=> EnvOverride
-> WhichCompiler
-> m ()
upgradeCabal menv wc = do
let name = $(mkPackageName "Cabal")
rmap <- resolvePackages menv Set.empty (Set.singleton name)
newest <-
case Map.keys rmap of
[] -> error "No Cabal library found in index, cannot upgrade"
[PackageIdentifier name' version]
| name == name' -> return version
x -> error $ "Unexpected results for resolvePackages: " ++ show x
installed <- getCabalPkgVer menv wc
if installed >= newest
then $logInfo $ T.concat
[ "Currently installed Cabal is "
, T.pack $ versionString installed
, ", newest is "
, T.pack $ versionString newest
, ". I'm not upgrading Cabal."
]
else withSystemTempDir "stack-cabal-upgrade" $ \tmpdir -> do
$logInfo $ T.concat
[ "Installing Cabal-"
, T.pack $ versionString newest
, " to replace "
, T.pack $ versionString installed
]
let ident = PackageIdentifier name newest
m <- unpackPackageIdents menv tmpdir Nothing (Set.singleton ident)
compilerPath <- join $ findExecutable menv (compilerExeName wc)
newestDir <- parseRelDir $ versionString newest
let installRoot = toFilePath $ parent (parent compilerPath)
</> $(mkRelDir "new-cabal")
</> newestDir
dir <-
case Map.lookup ident m of
Nothing -> error "upgradeCabal: Invariant violated, dir missing"
Just dir -> return dir
runCmd (Cmd (Just dir) (compilerExeName wc) menv ["Setup.hs"]) Nothing
platform <- asks getPlatform
let setupExe = toFilePath $ dir </>
(case platform of
Platform _ Cabal.Windows -> $(mkRelFile "Setup.exe")
_ -> $(mkRelFile "Setup"))
dirArgument name' = concat
[ "--"
, name'
, "dir="
, installRoot FP.</> name'
]
args = ( "configure": map dirArgument (words "lib bin data doc") )
runCmd (Cmd (Just dir) setupExe menv args) Nothing
runCmd (Cmd (Just dir) setupExe menv ["build"]) Nothing
runCmd (Cmd (Just dir) setupExe menv ["install"]) Nothing
$logInfo "New Cabal library installed"
getSystemCompiler :: (MonadIO m, MonadLogger m, MonadBaseControl IO m, MonadCatch m) => EnvOverride -> WhichCompiler -> m (Maybe (CompilerVersion, Arch))
getSystemCompiler menv wc = do
let exeName = case wc of
Ghc -> "ghc"
Ghcjs -> "ghcjs"
exists <- doesExecutableExist menv exeName
if exists
then do
eres <- tryProcessStdout Nothing menv exeName ["--info"]
let minfo = do
Right bs <- Just eres
pairs_ <- readMay $ S8.unpack bs :: Maybe [(String, String)]
version <- lookup "Project version" pairs_ >>= parseVersionFromString
arch <- lookup "Target platform" pairs_ >>= simpleParse . takeWhile (/= '-')
return (version, arch)
case (wc, minfo) of
(Ghc, Just (version, arch)) -> return (Just (GhcVersion version, arch))
(Ghcjs, Just (_, arch)) -> do
eversion <- tryAny $ getCompilerVersion menv Ghcjs
case eversion of
Left _ -> return Nothing
Right version -> return (Just (version, arch))
(_, Nothing) -> return Nothing
else return Nothing
getSetupInfo
:: (MonadIO m, MonadThrow m, MonadLogger m, MonadReader env m, HasConfig env)
=> String -> Manager -> m SetupInfo
getSetupInfo stackSetupYaml manager = do
config <- asks getConfig
setupInfos <-
mapM
loadSetupInfo
(SetupInfoFileOrURL stackSetupYaml :
configSetupInfoLocations config)
return (mconcat setupInfos)
where
loadSetupInfo (SetupInfoInline si) = return si
loadSetupInfo (SetupInfoFileOrURL urlOrFile) = do
bs <-
case parseUrl urlOrFile of
Just req -> do
bss <-
liftIO $
flip runReaderT manager $
withResponse req $
\res ->
responseBody res $$ CL.consume
return $ S8.concat bss
Nothing -> liftIO $ S.readFile urlOrFile
WithJSONWarnings si warnings <- either throwM return (Yaml.decodeEither' bs)
when (urlOrFile /= defaultStackSetupYaml) $
logJSONWarnings urlOrFile warnings
return si
getInstalledTool :: [Tool]
-> PackageName
-> (Version -> Bool)
-> Maybe Tool
getInstalledTool installed name goodVersion =
if null available
then Nothing
else Just $ Tool $ maximumBy (comparing packageIdentifierVersion) available
where
available = mapMaybe goodPackage installed
goodPackage (Tool pi') =
if packageIdentifierName pi' == name &&
goodVersion (packageIdentifierVersion pi')
then Just pi'
else Nothing
goodPackage _ = Nothing
getInstalledGhcjs :: [Tool]
-> (CompilerVersion -> Bool)
-> Maybe Tool
getInstalledGhcjs installed goodVersion =
if null available
then Nothing
else Just $ ToolGhcjs $ maximum available
where
available = mapMaybe goodPackage installed
goodPackage (ToolGhcjs cv) = if goodVersion cv then Just cv else Nothing
goodPackage _ = Nothing
downloadAndInstallTool :: (MonadIO m, MonadMask m, MonadLogger m, MonadReader env m, HasConfig env, HasHttpManager env, MonadBaseControl IO m)
=> Path Abs Dir
-> SetupInfo
-> DownloadInfo
-> Tool
-> (SetupInfo -> Path Abs File -> ArchiveType -> Path Abs Dir -> m ())
-> m Tool
downloadAndInstallTool programsDir si downloadInfo tool installer = do
(file, at) <- downloadFromInfo programsDir downloadInfo tool
dir <- installDir programsDir tool
unmarkInstalled programsDir tool
installer si file at dir
markInstalled programsDir tool
return tool
downloadAndInstallCompiler :: (MonadIO m, MonadMask m, MonadLogger m, MonadReader env m, HasConfig env, HasGHCVariant env, HasHttpManager env, HasTerminal env, HasReExec env, HasLogLevel env, MonadBaseControl IO m)
=> SetupInfo
-> CompilerVersion
-> VersionCheck
-> Maybe String
-> m Tool
downloadAndInstallCompiler si wanted@(GhcVersion{}) versionCheck mbindistURL = do
ghcVariant <- asks getGHCVariant
(selectedVersion, downloadInfo) <- case mbindistURL of
Just bindistURL -> do
case ghcVariant of
GHCCustom _ -> return ()
_ -> throwM RequireCustomGHCVariant
case wanted of
GhcVersion version ->
return (version, DownloadInfo (T.pack bindistURL) Nothing Nothing)
_ ->
throwM WantedMustBeGHC
_ -> do
ghcKey <- getGhcKey
case Map.lookup ghcKey $ siGHCs si of
Nothing -> throwM $ UnknownOSKey ghcKey
Just pairs_ -> getWantedCompilerInfo ghcKey versionCheck wanted GhcVersion pairs_
config <- asks getConfig
let installer =
case configPlatform config of
Platform _ Cabal.Windows -> installGHCWindows selectedVersion
_ -> installGHCPosix selectedVersion
$logInfo $
"Preparing to install GHC" <>
(case ghcVariant of
GHCStandard -> ""
v -> " (" <> T.pack (ghcVariantName v) <> ")") <>
" to an isolated location."
$logInfo "This will not interfere with any system-level installation."
ghcPkgName <- parsePackageNameFromString ("ghc" ++ ghcVariantSuffix ghcVariant)
let tool = Tool $ PackageIdentifier ghcPkgName selectedVersion
downloadAndInstallTool (configLocalPrograms config) si downloadInfo tool installer
downloadAndInstallCompiler si wanted versionCheck _mbindistUrl = do
config <- asks getConfig
ghcVariant <- asks getGHCVariant
case ghcVariant of
GHCStandard -> return ()
_ -> throwM GHCJSRequiresStandardVariant
(selectedVersion, downloadInfo) <- case Map.lookup "source" $ siGHCJSs si of
Nothing -> throwM $ UnknownOSKey "source"
Just pairs_ -> getWantedCompilerInfo "source" versionCheck wanted id pairs_
$logInfo "Preparing to install GHCJS to an isolated location."
$logInfo "This will not interfere with any system-level installation."
let tool = ToolGhcjs selectedVersion
downloadAndInstallTool (configLocalPrograms config) si downloadInfo tool installGHCJS
getWantedCompilerInfo :: (Ord k, MonadThrow m)
=> Text
-> VersionCheck
-> CompilerVersion
-> (k -> CompilerVersion)
-> Map k a
-> m (k, a)
getWantedCompilerInfo key versionCheck wanted toCV pairs_ =
case mpair of
Just pair -> return pair
Nothing -> throwM $ UnknownCompilerVersion key wanted (map toCV (Map.keys pairs_))
where
mpair =
listToMaybe $
sortBy (flip (comparing fst)) $
filter (isWantedCompiler versionCheck wanted . toCV . fst) (Map.toList pairs_)
getGhcKey :: (MonadReader env m, MonadThrow m, HasPlatform env, HasGHCVariant env, MonadLogger m, MonadIO m, MonadCatch m, MonadBaseControl IO m)
=> m Text
getGhcKey = do
ghcVariant <- asks getGHCVariant
platform <- asks getPlatform
osKey <- getOSKey platform
return $ osKey <> T.pack (ghcVariantSuffix ghcVariant)
getOSKey :: (MonadReader env m, MonadThrow m, HasPlatform env, MonadLogger m, MonadIO m, MonadCatch m, MonadBaseControl IO m)
=> Platform -> m Text
getOSKey platform =
case platform of
Platform I386 Cabal.Linux -> return "linux32"
Platform X86_64 Cabal.Linux -> return "linux64"
Platform I386 Cabal.OSX -> return "macosx"
Platform X86_64 Cabal.OSX -> return "macosx"
Platform I386 Cabal.FreeBSD -> return "freebsd32"
Platform X86_64 Cabal.FreeBSD -> return "freebsd64"
Platform I386 Cabal.OpenBSD -> return "openbsd32"
Platform X86_64 Cabal.OpenBSD -> return "openbsd64"
Platform I386 Cabal.Windows -> return "windows32"
Platform X86_64 Cabal.Windows -> return "windows64"
Platform arch os -> throwM $ UnsupportedSetupCombo os arch
downloadFromInfo
:: (MonadIO m, MonadMask m, MonadLogger m, MonadReader env m, HasConfig env, HasHttpManager env, MonadBaseControl IO m)
=> Path Abs Dir -> DownloadInfo -> Tool -> m (Path Abs File, ArchiveType)
downloadFromInfo programsDir downloadInfo tool = do
at <-
case extension of
".tar.xz" -> return TarXz
".tar.bz2" -> return TarBz2
".tar.gz" -> return TarGz
".7z.exe" -> return SevenZ
_ -> error $ "Unknown extension for url: " ++ T.unpack url
relfile <- parseRelFile $ toolString tool ++ extension
let path = programsDir </> relfile
chattyDownload (T.pack (toolString tool)) downloadInfo path
return (path, at)
where
url = downloadInfoUrl downloadInfo
extension =
loop $ T.unpack url
where
loop fp
| ext `elem` [".tar", ".bz2", ".xz", ".exe", ".7z", ".gz"] = loop fp' ++ ext
| otherwise = ""
where
(fp', ext) = FP.splitExtension fp
data ArchiveType
= TarBz2
| TarXz
| TarGz
| SevenZ
installGHCPosix :: (MonadIO m, MonadMask m, MonadLogger m, MonadReader env m, HasConfig env, HasHttpManager env, MonadBaseControl IO m)
=> Version
-> SetupInfo
-> Path Abs File
-> ArchiveType
-> Path Abs Dir
-> m ()
installGHCPosix version _ archiveFile archiveType destDir = do
platform <- asks getPlatform
menv0 <- getMinimalEnvOverride
menv <- mkEnvOverride platform (removeHaskellEnvVars (unEnvOverride menv0))
$logDebug $ "menv = " <> T.pack (show (unEnvOverride menv))
zipTool' <-
case archiveType of
TarXz -> return "xz"
TarBz2 -> return "bzip2"
TarGz -> return "gzip"
SevenZ -> error "Don't know how to deal with .7z files on non-Windows"
(zipTool, makeTool, tarTool) <- checkDependencies $ (,,)
<$> checkDependency zipTool'
<*> (checkDependency "gmake" <|> checkDependency "make")
<*> checkDependency "tar"
$logDebug $ "ziptool: " <> T.pack zipTool
$logDebug $ "make: " <> T.pack makeTool
$logDebug $ "tar: " <> T.pack tarTool
withSystemTempDir "stack-setup" $ \root -> do
dir <-
liftM (root </>) $
parseRelDir $
"ghc-" ++ versionString version
$logSticky $ T.concat ["Unpacking GHC into ", T.pack . toFilePath $ root, " ..."]
$logDebug $ "Unpacking " <> T.pack (toFilePath archiveFile)
readInNull root tarTool menv ["xf", toFilePath archiveFile] Nothing
$logSticky "Configuring GHC ..."
readInNull dir (toFilePath $ dir </> $(mkRelFile "configure"))
menv ["--prefix=" ++ toFilePath destDir] Nothing
$logSticky "Installing GHC ..."
readInNull dir makeTool menv ["install"] Nothing
$logStickyDone $ "Installed GHC."
$logDebug $ "GHC installed to " <> T.pack (toFilePath destDir)
installGHCJS :: (MonadIO m, MonadMask m, MonadLogger m, MonadReader env m, HasConfig env, HasHttpManager env, HasTerminal env, HasReExec env, HasLogLevel env, MonadBaseControl IO m)
=> SetupInfo
-> Path Abs File
-> ArchiveType
-> Path Abs Dir
-> m ()
installGHCJS si archiveFile archiveType destDir = do
platform <- asks getPlatform
menv0 <- getMinimalEnvOverride
let removeLockVar = Map.delete "STACK_LOCK"
menv <- mkEnvOverride platform (removeLockVar (removeHaskellEnvVars (unEnvOverride menv0)))
$logDebug $ "menv = " <> T.pack (show (unEnvOverride menv))
let unpackDir = destDir </> $(mkRelDir "src")
runUnpack <- case platform of
Platform _ Cabal.Windows -> return $
withUnpackedTarball7z "GHCJS" si archiveFile archiveType Nothing unpackDir
_ -> do
zipTool' <-
case archiveType of
TarXz -> return "xz"
TarBz2 -> return "bzip2"
TarGz -> return "gzip"
SevenZ -> error "Don't know how to deal with .7z files on non-Windows"
(zipTool, tarTool) <- checkDependencies $ (,)
<$> checkDependency zipTool'
<*> checkDependency "tar"
$logDebug $ "ziptool: " <> T.pack zipTool
$logDebug $ "tar: " <> T.pack tarTool
return $ do
ignoringAbsence (removeDirRecur unpackDir)
readInNull destDir tarTool menv ["xf", toFilePath archiveFile] Nothing
innerDir <- expectSingleUnpackedDir archiveFile destDir
renameDir innerDir unpackDir
$logSticky $ T.concat ["Unpacking GHCJS into ", T.pack . toFilePath $ unpackDir, " ..."]
$logDebug $ "Unpacking " <> T.pack (toFilePath archiveFile)
runUnpack
$logSticky "Setting up GHCJS build environment"
let stackYaml = unpackDir </> $(mkRelFile "stack.yaml")
destBinDir = destDir </> $(mkRelDir "bin")
ensureDir destBinDir
envConfig <- loadGhcjsEnvConfig stackYaml destBinDir
mwindowsInstallDir <- case platform of
Platform _ Cabal.Windows ->
liftM Just $ runInnerStackT envConfig installationRootLocal
_ -> return Nothing
$logSticky "Installing GHCJS (this will take a long time) ..."
runInnerStackT envConfig $
build (\_ -> return ()) Nothing defaultBuildOpts { boptsInstallExes = True }
forM_ mwindowsInstallDir $ \dir -> do
(_, files) <- listDir (dir </> $(mkRelDir "bin"))
forM_ (filter ((".options" `isSuffixOf`). toFilePath) files) $ \optionsFile -> do
let dest = destDir </> $(mkRelDir "bin") </> filename optionsFile
ignoringAbsence (removeFile dest)
copyFile optionsFile dest
$logStickyDone "Installed GHCJS."
installDockerStackExe
:: (MonadIO m, MonadMask m, MonadLogger m, MonadReader env m, HasConfig env, HasHttpManager env, MonadBaseControl IO m)
=> SetupInfo
-> Path Abs File
-> ArchiveType
-> Path Abs Dir
-> m ()
installDockerStackExe _ archiveFile _ destDir = do
(_,tarTool) <-
checkDependencies $
(,) <$> checkDependency "gzip" <*> checkDependency "tar"
menv <- getMinimalEnvOverride
ensureDir destDir
readInNull
destDir
tarTool
menv
["xf", toFilePath archiveFile, "--strip-components", "1"]
Nothing
ensureGhcjsBooted :: (MonadIO m, MonadBaseControl IO m, MonadLogger m, MonadCatch m, HasConfig env, HasHttpManager env, HasTerminal env, HasReExec env, HasLogLevel env, MonadReader env m)
=> EnvOverride -> CompilerVersion -> Bool -> m ()
ensureGhcjsBooted menv cv shouldBoot = do
eres <- try $ sinkProcessStdout Nothing menv "ghcjs" [] (return ())
case eres of
Right () -> return ()
Left (ReadProcessException _ _ _ err) | "no input files" `S.isInfixOf` LBS.toStrict err ->
return ()
Left (ReadProcessException _ _ _ err) | "ghcjs_boot.completed" `S.isInfixOf` LBS.toStrict err ->
if not shouldBoot then throwM GHCJSNotBooted else do
config <- asks getConfig
destDir <- installDir (configLocalPrograms config) (ToolGhcjs cv)
let stackYaml = destDir </> $(mkRelFile "src/stack.yaml")
stackYamlExists <- doesFileExist stackYaml
actualStackYaml <- if stackYamlExists then return stackYaml
else case cv of
GhcjsVersion version _ ->
liftM ((destDir </> $(mkRelDir "src")) </>) $
parseRelFile $ "ghcjs-" ++ versionString version ++ "/stack.yaml"
_ -> fail "ensureGhcjsBooted invoked on non GhcjsVersion"
actualStackYamlExists <- doesFileExist actualStackYaml
unless actualStackYamlExists $
fail "Couldn't find GHCJS stack.yaml in old or new location."
bootGhcjs actualStackYaml destDir
Left err -> throwM err
bootGhcjs :: (MonadIO m, MonadBaseControl IO m, MonadLogger m, MonadCatch m, HasHttpManager env, HasTerminal env, HasReExec env, HasLogLevel env, MonadReader env m)
=> Path Abs File -> Path Abs Dir -> m ()
bootGhcjs stackYaml destDir = do
envConfig <- loadGhcjsEnvConfig stackYaml (destDir </> $(mkRelDir "bin"))
menv <- liftIO $ configEnvOverride (getConfig envConfig) defaultEnvSettings
mcabal <- getCabalInstallVersion menv
shouldInstallCabal <- case mcabal of
Nothing -> do
$logInfo "No cabal-install binary found for use with GHCJS. Installing a local copy of cabal-install from source."
return True
Just v
| v < $(mkVersion "1.22.4") -> do
$logInfo $
"cabal-install found on PATH is too old to be used for booting GHCJS (version " <>
versionText v <>
"). Installing a local copy of cabal-install from source."
return True
| otherwise -> return False
when shouldInstallCabal $ do
$logSticky "Building cabal-install for use by ghcjs-boot ... "
runInnerStackT envConfig $
build (\_ -> return ())
Nothing
defaultBuildOpts { boptsTargets = ["cabal-install"] }
$logSticky "Booting GHCJS (this will take a long time) ..."
let envSettings = defaultEnvSettings { esIncludeGhcPackagePath = False }
menv' <- liftIO $ configEnvOverride (getConfig envConfig) envSettings
runAndLog Nothing "ghcjs-boot" menv' ["--clean"]
$logStickyDone "GHCJS booted."
runAndLog :: (MonadIO m, MonadBaseControl IO m, MonadLogger m)
=> Maybe (Path Abs Dir) -> String -> EnvOverride -> [String] -> m ()
runAndLog mdir name menv args = liftBaseWith $ \restore -> do
let logLines = CB.lines =$ CL.mapM_ (void . restore . monadLoggerLog $(TH.location >>= liftLoc) "" LevelInfo . toLogStr)
void $ restore $ sinkProcessStderrStdout mdir menv name args logLines logLines
loadGhcjsEnvConfig :: (MonadIO m, HasHttpManager r, MonadReader r m, HasTerminal r, HasReExec r, HasLogLevel r)
=> Path Abs File -> Path b t -> m EnvConfig
loadGhcjsEnvConfig stackYaml binPath = runInnerStackLoggingT $ do
lc <- loadConfig
(mempty
{ configMonoidInstallGHC = Just True
, configMonoidLocalBinPath = Just (toFilePath binPath)
})
(Just stackYaml)
Nothing
bconfig <- lcLoadBuildConfig lc Nothing
runInnerStackT bconfig $ setupEnv Nothing
getCabalInstallVersion :: (MonadIO m, MonadBaseControl IO m, MonadLogger m, MonadCatch m)
=> EnvOverride -> m (Maybe Version)
getCabalInstallVersion menv = do
ebs <- tryProcessStdout Nothing menv "cabal" ["--numeric-version"]
case ebs of
Left _ -> return Nothing
Right bs -> Just <$> parseVersion (T.dropWhileEnd isSpace (T.decodeUtf8 bs))
checkDependencies :: (MonadIO m, MonadThrow m, MonadReader env m, HasConfig env)
=> CheckDependency a -> m a
checkDependencies (CheckDependency f) = do
menv <- getMinimalEnvOverride
liftIO (f menv) >>= either (throwM . MissingDependencies) return
checkDependency :: String -> CheckDependency String
checkDependency tool = CheckDependency $ \menv -> do
exists <- doesExecutableExist menv tool
return $ if exists then Right tool else Left [tool]
newtype CheckDependency a = CheckDependency (EnvOverride -> IO (Either [String] a))
deriving Functor
instance Applicative CheckDependency where
pure x = CheckDependency $ \_ -> return (Right x)
CheckDependency f <*> CheckDependency x = CheckDependency $ \menv -> do
f' <- f menv
x' <- x menv
return $
case (f', x') of
(Left e1, Left e2) -> Left $ e1 ++ e2
(Left e, Right _) -> Left e
(Right _, Left e) -> Left e
(Right f'', Right x'') -> Right $ f'' x''
instance Alternative CheckDependency where
empty = CheckDependency $ \_ -> return $ Left []
CheckDependency x <|> CheckDependency y = CheckDependency $ \menv -> do
res1 <- x menv
case res1 of
Left _ -> y menv
Right x' -> return $ Right x'
installGHCWindows :: (MonadIO m, MonadMask m, MonadLogger m, MonadReader env m, HasConfig env, HasHttpManager env, MonadBaseControl IO m)
=> Version
-> SetupInfo
-> Path Abs File
-> ArchiveType
-> Path Abs Dir
-> m ()
installGHCWindows version si archiveFile archiveType destDir = do
tarComponent <- parseRelDir $ "ghc-" ++ versionString version
withUnpackedTarball7z "GHC" si archiveFile archiveType (Just tarComponent) destDir
$logInfo $ "GHC installed to " <> T.pack (toFilePath destDir)
installMsys2Windows :: (MonadIO m, MonadMask m, MonadLogger m, MonadReader env m, HasConfig env, HasHttpManager env, MonadBaseControl IO m)
=> Text
-> SetupInfo
-> Path Abs File
-> ArchiveType
-> Path Abs Dir
-> m ()
installMsys2Windows osKey si archiveFile archiveType destDir = do
exists <- liftIO $ D.doesDirectoryExist $ toFilePath destDir
when exists $ liftIO (D.removeDirectoryRecursive $ toFilePath destDir) `catchIO` \e -> do
$logError $ T.pack $
"Could not delete existing msys directory: " ++
toFilePath destDir
throwM e
msys <- parseRelDir $ "msys" ++ T.unpack (fromMaybe "32" $ T.stripPrefix "windows" osKey)
withUnpackedTarball7z "MSYS2" si archiveFile archiveType (Just msys) destDir
platform <- asks getPlatform
menv0 <- getMinimalEnvOverride
newEnv <- augmentPathMap [toFilePath $ destDir </> $(mkRelDir "usr")
</> $(mkRelDir "bin")]
(unEnvOverride menv0)
menv <- mkEnvOverride platform newEnv
runCmd (Cmd (Just destDir) "sh" menv ["--login", "-c", "true"]) Nothing
withUnpackedTarball7z :: (MonadIO m, MonadMask m, MonadLogger m, MonadReader env m, HasConfig env, HasHttpManager env, MonadBaseControl IO m)
=> String
-> SetupInfo
-> Path Abs File
-> ArchiveType
-> Maybe (Path Rel Dir)
-> Path Abs Dir
-> m ()
withUnpackedTarball7z name si archiveFile archiveType msrcDir destDir = do
suffix <-
case archiveType of
TarXz -> return ".xz"
TarBz2 -> return ".bz2"
TarGz -> return ".gz"
_ -> error $ name ++ " must be a tarball file"
tarFile <-
case T.stripSuffix suffix $ T.pack $ toFilePath archiveFile of
Nothing -> error $ "Invalid " ++ name ++ " filename: " ++ show archiveFile
Just x -> parseAbsFile $ T.unpack x
run7z <- setup7z si
let tmpName = toFilePathNoTrailingSep (dirname destDir) ++ "-tmp"
ensureDir (parent destDir)
withTempDir (parent destDir) tmpName $ \tmpDir -> do
ignoringAbsence (removeDirRecur destDir)
run7z (parent archiveFile) archiveFile
run7z tmpDir tarFile
absSrcDir <- case msrcDir of
Just srcDir -> return $ tmpDir </> srcDir
Nothing -> expectSingleUnpackedDir archiveFile tmpDir
removeFile tarFile `catchIO` \e ->
$logWarn (T.concat
[ "Exception when removing "
, T.pack $ toFilePath tarFile
, ": "
, T.pack $ show e
])
renameDir absSrcDir destDir
expectSingleUnpackedDir :: (MonadIO m, MonadThrow m) => Path Abs File -> Path Abs Dir -> m (Path Abs Dir)
expectSingleUnpackedDir archiveFile destDir = do
contents <- listDir destDir
case contents of
([dir], []) -> return dir
_ -> error $ "Expected a single directory within unpacked " ++ toFilePath archiveFile
setup7z :: (MonadReader env m, HasHttpManager env, HasConfig env, MonadThrow m, MonadIO m, MonadIO n, MonadLogger m, MonadLogger n, MonadBaseControl IO m)
=> SetupInfo
-> m (Path Abs Dir -> Path Abs File -> n ())
setup7z si = do
dir <- asks $ configLocalPrograms . getConfig
let exe = dir </> $(mkRelFile "7z.exe")
dll = dir </> $(mkRelFile "7z.dll")
case (siSevenzDll si, siSevenzExe si) of
(Just sevenzDll, Just sevenzExe) -> do
chattyDownload "7z.dll" sevenzDll dll
chattyDownload "7z.exe" sevenzExe exe
return $ \outdir archive -> do
let cmd = toFilePath exe
args =
[ "x"
, "-o" ++ toFilePath outdir
, "-y"
, toFilePath archive
]
$logProcessRun cmd args
ec <- liftIO $ rawSystem cmd args
when (ec /= ExitSuccess)
$ liftIO $ throwM (ProblemWhileDecompressing archive)
_ -> throwM SetupInfoMissingSevenz
chattyDownload :: (MonadReader env m, HasHttpManager env, MonadIO m, MonadLogger m, MonadThrow m, MonadBaseControl IO m)
=> Text
-> DownloadInfo
-> Path Abs File
-> m ()
chattyDownload label downloadInfo path = do
let url = downloadInfoUrl downloadInfo
req <- parseUrl $ T.unpack url
$logSticky $ T.concat
[ "Preparing to download "
, label
, " ..."
]
$logDebug $ T.concat
[ "Downloading from "
, url
, " to "
, T.pack $ toFilePath path
, " ..."
]
hashChecks <- case downloadInfoSha1 downloadInfo of
Just sha1ByteString -> do
let sha1 = CheckHexDigestByteString sha1ByteString
$logDebug $ T.concat
[ "Will check against sha1 hash: "
, T.decodeUtf8With T.lenientDecode sha1ByteString
]
return [HashCheck SHA1 sha1]
Nothing -> do
$logWarn $ T.concat
[ "No sha1 found in metadata,"
, " download hash won't be checked."
]
return []
let dReq = DownloadRequest
{ drRequest = req
, drHashChecks = hashChecks
, drLengthCheck = mtotalSize
, drRetryPolicy = drRetryPolicyDefault
}
runInBase <- liftBaseWith $ \run -> return (void . run)
x <- verifiedDownload dReq path (chattyDownloadProgress runInBase)
if x
then $logStickyDone ("Downloaded " <> label <> ".")
else $logStickyDone "Already downloaded."
where
mtotalSize = downloadInfoContentLength downloadInfo
chattyDownloadProgress runInBase _ = do
_ <- liftIO $ runInBase $ $logSticky $
label <> ": download has begun"
CL.map (Sum . S.length)
=$ chunksOverTime 1
=$ go
where
go = evalStateC 0 $ awaitForever $ \(Sum size) -> do
modify (+ size)
totalSoFar <- get
liftIO $ runInBase $ $logSticky $ T.pack $
case mtotalSize of
Nothing -> chattyProgressNoTotal totalSoFar
Just 0 -> chattyProgressNoTotal totalSoFar
Just totalSize -> chattyProgressWithTotal totalSoFar totalSize
chattyProgressNoTotal totalSoFar =
printf ("%s: " <> bytesfmt "%7.2f" totalSoFar <> " downloaded...")
(T.unpack label)
chattyProgressWithTotal totalSoFar total =
printf ("%s: " <>
bytesfmt "%7.2f" totalSoFar <> " / " <>
bytesfmt "%.2f" total <>
" (%6.2f%%) downloaded...")
(T.unpack label)
percentage
where percentage :: Double
percentage = fromIntegral totalSoFar / fromIntegral total * 100
bytesfmt :: Integral a => String -> a -> String
bytesfmt formatter bs = printf (formatter <> " %s")
(fromIntegral (signum bs) * dec :: Double)
(bytesSuffixes !! i)
where
(dec,i) = getSuffix (abs bs)
getSuffix n = until p (\(x,y) -> (x / 1024, y+1)) (fromIntegral n,0)
where p (n',numDivs) = n' < 1024 || numDivs == (length bytesSuffixes 1)
bytesSuffixes :: [String]
bytesSuffixes = ["B","KiB","MiB","GiB","TiB","PiB","EiB","ZiB","YiB"]
chunksOverTime :: (Monoid a, MonadIO m) => NominalDiffTime -> Conduit a m a
chunksOverTime diff = do
currentTime <- liftIO getCurrentTime
evalStateC (currentTime, mempty) go
where
go = await >>= \case
Nothing -> do
(_, acc) <- get
yield acc
Just a -> do
(lastTime, acc) <- get
let acc' = acc <> a
currentTime <- liftIO getCurrentTime
if diff < diffUTCTime currentTime lastTime
then put (currentTime, mempty) >> yield acc'
else put (lastTime, acc')
go
sanityCheck :: (MonadIO m, MonadMask m, MonadLogger m, MonadBaseControl IO m)
=> EnvOverride
-> WhichCompiler
-> m ()
sanityCheck menv wc = withSystemTempDir "stack-sanity-check" $ \dir -> do
let fp = toFilePath $ dir </> $(mkRelFile "Main.hs")
liftIO $ writeFile fp $ unlines
[ "import Distribution.Simple"
, "main = putStrLn \"Hello World\""
]
let exeName = compilerExeName wc
ghc <- join $ findExecutable menv exeName
$logDebug $ "Performing a sanity check on: " <> T.pack (toFilePath ghc)
eres <- tryProcessStdout (Just dir) menv exeName
[ fp
, "-no-user-package-db"
]
case eres of
Left e -> throwM $ GHCSanityCheckCompileFailed e ghc
Right _ -> return ()
removeHaskellEnvVars :: Map Text Text -> Map Text Text
removeHaskellEnvVars =
Map.delete "GHCJS_PACKAGE_PATH" .
Map.delete "GHC_PACKAGE_PATH" .
Map.delete "HASKELL_PACKAGE_SANDBOX" .
Map.delete "HASKELL_PACKAGE_SANDBOXES" .
Map.delete "HASKELL_DIST_DIR"
getUtf8EnvVars
:: forall m env.
(MonadReader env m, HasPlatform env, MonadLogger m, MonadCatch m, MonadBaseControl IO m, MonadIO m)
=> EnvOverride -> CompilerVersion -> m (Map Text Text)
getUtf8EnvVars menv compilerVer = do
if getGhcVersion compilerVer >= $(mkVersion "7.10.3")
then return $ Map.singleton "GHC_CHARENC" "UTF-8"
else legacyLocale
where
legacyLocale = do
Platform _ os <- asks getPlatform
if os == Cabal.Windows
then
return
Map.empty
else do
let checkedVars = map checkVar (Map.toList $ eoTextMap menv)
needChangeVars = concatMap fst checkedVars
existingVarNames = Set.unions (map snd checkedVars)
hasAnyExisting =
any (`Set.member` existingVarNames) ["LANG", "LANGUAGE", "LC_ALL"]
if null needChangeVars && hasAnyExisting
then
return
Map.empty
else do
elocales <- tryProcessStdout Nothing menv "locale" ["-a"]
let
utf8Locales =
case elocales of
Left _ -> []
Right locales ->
filter
isUtf8Locale
(T.lines $
T.decodeUtf8With
T.lenientDecode
locales)
mfallback = getFallbackLocale utf8Locales
when
(isNothing mfallback)
($logWarn
"Warning: unable to set locale to UTF-8 encoding; GHC may fail with 'invalid character'")
let
changes =
Map.unions $
map
(adjustedVarValue utf8Locales mfallback)
needChangeVars
adds
| hasAnyExisting =
Map.empty
| otherwise =
case mfallback of
Nothing -> Map.empty
Just fallback ->
Map.singleton "LANG" fallback
return (Map.union changes adds)
checkVar
:: (Text, Text) -> ([Text], Set Text)
checkVar (k,v) =
if k `elem` ["LANG", "LANGUAGE"] || "LC_" `T.isPrefixOf` k
then if isUtf8Locale v
then ([], Set.singleton k)
else ([k], Set.singleton k)
else ([], Set.empty)
adjustedVarValue
:: [Text] -> Maybe Text -> Text -> Map Text Text
adjustedVarValue utf8Locales mfallback k =
case Map.lookup k (eoTextMap menv) of
Nothing -> Map.empty
Just v ->
case concatMap
(matchingLocales utf8Locales)
[ T.takeWhile (/= '.') v <> "."
, T.takeWhile (/= '_') v <> "_"] of
(v':_) -> Map.singleton k v'
[] ->
case mfallback of
Just fallback -> Map.singleton k fallback
Nothing -> Map.empty
getFallbackLocale
:: [Text] -> Maybe Text
getFallbackLocale utf8Locales =
case concatMap (matchingLocales utf8Locales) fallbackPrefixes of
(v:_) -> Just v
[] ->
case utf8Locales of
[] -> Nothing
(v:_) -> Just v
matchingLocales
:: [Text] -> Text -> [Text]
matchingLocales utf8Locales prefix =
filter (\v -> T.toLower prefix `T.isPrefixOf` T.toLower v) utf8Locales
isUtf8Locale locale =
any (\ v -> T.toLower v `T.isSuffixOf` T.toLower locale) utf8Suffixes
fallbackPrefixes = ["C.", "en_US.", "en_"]
utf8Suffixes = [".UTF-8", ".utf8"]