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Setup.hs
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Setup.hs
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{-# LANGUAGE NoImplicitPrelude #-}
{-# LANGUAGE ConstraintKinds #-}
{-# LANGUAGE DataKinds #-}
{-# LANGUAGE DeriveDataTypeable #-} -- ghc < 7.10
{-# LANGUAGE DeriveFunctor #-}
{-# LANGUAGE FlexibleContexts #-}
{-# LANGUAGE LambdaCase #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE PackageImports #-}
{-# LANGUAGE ScopedTypeVariables #-}
{-# LANGUAGE ViewPatterns #-}
{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE MultiWayIf #-}
{-# LANGUAGE CPP #-}
module Stack.Setup
( setupEnv
, ensureCompiler
, ensureDockerStackExe
, getSystemCompiler
, getCabalInstallVersion
, SetupOpts (..)
, defaultSetupInfoYaml
, removeHaskellEnvVars
-- * Stack binary download
, StackReleaseInfo
, getDownloadVersion
, stackVersion
, preferredPlatforms
, downloadStackReleaseInfo
, downloadStackExe
) where
import qualified Codec.Archive.Tar as Tar
import Control.Applicative (empty)
import Control.Monad.State (get, put, modify)
import "cryptonite" Crypto.Hash (SHA1(..), SHA256(..))
import Data.Aeson.Extended
import qualified Data.ByteString as S
import qualified Data.ByteString.Lazy as LBS
import qualified Data.ByteString.Lazy.Char8 as BL8
import Data.Char (isSpace)
import Data.Conduit (await, yield, awaitForever)
import qualified Data.Conduit.Binary as CB
import Data.Conduit.Lazy (lazyConsume)
import Data.Conduit.Lift (evalStateC)
import qualified Data.Conduit.List as CL
import Data.Conduit.Process.Typed (eceStderr)
import Data.Conduit.Zlib (ungzip)
import Data.Foldable (maximumBy)
import qualified Data.HashMap.Strict as HashMap
import Data.List hiding (concat, elem, maximumBy, any)
import qualified Data.Map as Map
import qualified Data.Set as Set
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 qualified Data.Yaml as Yaml
import Distribution.System (OS, Arch (..), Platform (..))
import qualified Distribution.System as Cabal
import Distribution.Text (simpleParse)
import Distribution.Types.PackageName (mkPackageName)
import Distribution.Version (mkVersion)
import Lens.Micro (set)
import Network.HTTP.StackClient (getResponseBody, getResponseStatusCode)
import Network.HTTP.Download
import Path
import Path.CheckInstall (warnInstallSearchPathIssues)
import Path.Extra (toFilePathNoTrailingSep)
import Path.IO hiding (findExecutable, withSystemTempDir)
import Prelude (until)
import qualified RIO
import Stack.Build (build)
import Stack.Config (loadConfig)
import Stack.Constants
import Stack.Constants.Config (distRelativeDir)
import Stack.GhcPkg (createDatabase, getCabalPkgVer, getGlobalDB, mkGhcPackagePath, ghcPkgPathEnvVar)
import Stack.Prelude hiding (Display (..))
import Stack.PrettyPrint
import Stack.Setup.Installed
import Stack.Snapshot (loadSnapshot)
import Stack.Types.Build
import Stack.Types.Compiler
import Stack.Types.CompilerBuild
import Stack.Types.Config
import Stack.Types.Docker
import Stack.Types.Runner
import Stack.Types.Version
import qualified System.Directory as D
import System.Environment (getExecutablePath, lookupEnv)
import System.Exit (ExitCode (..), exitFailure)
import System.IO.Error (isPermissionError)
import System.FilePath (searchPathSeparator)
import qualified System.FilePath as FP
import System.Permissions (setFileExecutable)
import RIO.Process
import RIO.List
import Text.Printf (printf)
#if !WINDOWS
import System.Uname (uname, release)
import Data.List.Split (splitOn)
import Foreign.C (throwErrnoIfMinus1_, peekCString)
import Foreign.Marshal (alloca)
#endif
-- | Default location of the stack-setup.yaml file
defaultSetupInfoYaml :: String
defaultSetupInfoYaml =
"https://raw.githubusercontent.com/fpco/stackage-content/master/stack/stack-setup-2.yaml"
data SetupOpts = SetupOpts
{ soptsInstallIfMissing :: !Bool
, soptsUseSystem :: !Bool
-- ^ Should we use a system compiler installation, if available?
, soptsWantedCompiler :: !WantedCompiler
, soptsCompilerCheck :: !VersionCheck
, soptsStackYaml :: !(Maybe (Path Abs File))
-- ^ If we got the desired GHC version from that file
, soptsForceReinstall :: !Bool
, soptsSanityCheck :: !Bool
-- ^ Run a sanity check on the selected GHC
, soptsSkipGhcCheck :: !Bool
-- ^ Don't check for a compatible GHC version/architecture
, soptsSkipMsys :: !Bool
-- ^ Do not use a custom msys installation on Windows
, soptsUpgradeCabal :: !(Maybe UpgradeTo)
-- ^ Upgrade the global Cabal library in the database to the newest
-- version. Only works reliably with a stack-managed installation.
, soptsResolveMissingGHC :: !(Maybe Text)
-- ^ Message shown to user for how to resolve the missing GHC
, soptsSetupInfoYaml :: !FilePath
-- ^ Location of the main stack-setup.yaml file
, soptsGHCBindistURL :: !(Maybe String)
-- ^ Alternate GHC binary distribution (requires custom GHCVariant)
, soptsGHCJSBootOpts :: [String]
-- ^ Additional ghcjs-boot options, the default is "--clean"
}
deriving Show
data SetupException = UnsupportedSetupCombo OS Arch
| MissingDependencies [String]
| UnknownCompilerVersion (Set.Set Text) WantedCompiler (Set.Set ActualCompiler)
| UnknownOSKey Text
| GHCSanityCheckCompileFailed SomeException (Path Abs File)
| WantedMustBeGHC
| RequireCustomGHCVariant
| ProblemWhileDecompressing (Path Abs File)
| SetupInfoMissingSevenz
| GHCJSRequiresStandardVariant
| GHCJSNotBooted
| DockerStackExeNotFound Version Text
| UnsupportedSetupConfiguration
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 oskeys wanted known) = concat
[ "No setup information found for "
, T.unpack $ utf8BuilderToText $ RIO.display wanted
, " on your platform.\nThis probably means a GHC bindist has not yet been added for OS key '"
, T.unpack (T.intercalate "', '" (sort $ Set.toList oskeys))
, "'.\nSupported versions: "
, T.unpack (T.intercalate ", " (map compilerVersionText (sort $ Set.toList 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"]
show UnsupportedSetupConfiguration =
"I don't know how to install GHC on your system configuration, please install manually"
-- | Modify the environment variables (like PATH) appropriately, possibly doing installation too
setupEnv :: (HasBuildConfig env, HasGHCVariant env)
=> Maybe Text -- ^ Message to give user when necessary GHC is not available
-> RIO env EnvConfig
setupEnv mResolveMissingGHC = do
config <- view configL
bconfig <- view buildConfigL
let stackYaml = bcStackYaml bconfig
platform <- view platformL
wcVersion <- view wantedCompilerVersionL
wc <- view $ wantedCompilerVersionL.to wantedToActual.whichCompilerL
let sopts = SetupOpts
{ soptsInstallIfMissing = configInstallGHC config
, soptsUseSystem = configSystemGHC config
, soptsWantedCompiler = wcVersion
, soptsCompilerCheck = configCompilerCheck config
, soptsStackYaml = Just stackYaml
, soptsForceReinstall = False
, soptsSanityCheck = False
, soptsSkipGhcCheck = configSkipGHCCheck config
, soptsSkipMsys = configSkipMsys config
, soptsUpgradeCabal = Nothing
, soptsResolveMissingGHC = mResolveMissingGHC
, soptsSetupInfoYaml = defaultSetupInfoYaml
, soptsGHCBindistURL = Nothing
, soptsGHCJSBootOpts = ["--clean"]
}
(mghcBin, mCompilerBuild, _) <-
case bcDownloadCompiler bconfig of
SkipDownloadCompiler -> return (Nothing, Nothing, False)
WithDownloadCompiler -> ensureCompiler sopts
-- Modify the initial environment to include the GHC path, if a local GHC
-- is being used
menv0 <- view processContextL
env <- either throwM (return . removeHaskellEnvVars)
$ augmentPathMap
(map toFilePath $ maybe [] edBins mghcBin)
(view envVarsL menv0)
menv <- mkProcessContext env
(compilerVer, cabalVer, globaldb) <- withProcessContext menv $ runConcurrently $ (,,)
<$> Concurrently (getCompilerVersion wc)
<*> Concurrently (getCabalPkgVer wc)
<*> Concurrently (getGlobalDB wc)
logDebug "Resolving package entries"
bc <- view buildConfigL
-- Set up a modified environment which includes the modified PATH
-- that GHC can be found on. This is needed for looking up global
-- package information in loadSnapshot.
let bcPath :: BuildConfig
bcPath = set processContextL menv bc
ls <- runRIO bcPath $ loadSnapshot
(Just compilerVer)
(bcSnapshotDef bc)
let envConfig0 = EnvConfig
{ envConfigBuildConfig = bc
, envConfigCabalVersion = cabalVer
, envConfigCompilerVersion = compilerVer
, envConfigCompilerBuild = mCompilerBuild
, envConfigLoadedSnapshot = ls
}
-- extra installation bin directories
mkDirs <- runReaderT extraBinDirs envConfig0
let mpath = Map.lookup "PATH" env
depsPath <- either throwM return $ augmentPath (toFilePath <$> mkDirs False) mpath
localsPath <- either throwM return $ augmentPath (toFilePath <$> mkDirs True) mpath
deps <- runReaderT packageDatabaseDeps envConfig0
withProcessContext menv $ createDatabase wc deps
localdb <- runReaderT packageDatabaseLocal envConfig0
withProcessContext menv $ createDatabase wc localdb
extras <- runReaderT packageDatabaseExtra envConfig0
let mkGPP locals = mkGhcPackagePath locals localdb deps extras globaldb
distDir <- runReaderT distRelativeDir envConfig0
executablePath <- liftIO getExecutablePath
utf8EnvVars <- withProcessContext menv $ getUtf8EnvVars compilerVer
mGhcRtsEnvVar <- liftIO $ lookupEnv "GHCRTS"
envRef <- liftIO $ newIORef Map.empty
let getProcessContext' es = do
m <- readIORef envRef
case Map.lookup es m of
Just eo -> return eo
Nothing -> do
eo <- mkProcessContext
$ Map.insert "PATH" (if esIncludeLocals es then localsPath else depsPath)
$ (if esIncludeGhcPackagePath es
then Map.insert (ghcPkgPathEnvVar wc) (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)
$ case (soptsSkipMsys sopts, platform) of
(False, Platform Cabal.I386 Cabal.Windows)
-> Map.insert "MSYSTEM" "MINGW32"
(False, Platform Cabal.X86_64 Cabal.Windows)
-> Map.insert "MSYSTEM" "MINGW64"
_ -> id
-- See https://github.com/commercialhaskell/stack/issues/3444
$ case (esKeepGhcRts es, mGhcRtsEnvVar) of
(True, Just ghcRts) -> Map.insert "GHCRTS" (T.pack ghcRts)
_ -> id
-- For reasoning and duplication, see: https://github.com/fpco/stack/issues/70
$ 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
envOverride <- liftIO $ getProcessContext' minimalEnvSettings
return EnvConfig
{ envConfigBuildConfig = bconfig
{ bcConfig = maybe id addIncludeLib mghcBin
$ set processContextL envOverride
(view configL bconfig)
{ configProcessContextSettings = getProcessContext'
}
}
, envConfigCabalVersion = cabalVer
, envConfigCompilerVersion = compilerVer
, envConfigCompilerBuild = mCompilerBuild
, envConfigLoadedSnapshot = ls
}
-- | Add the include and lib paths to the given Config
addIncludeLib :: ExtraDirs -> Config -> Config
addIncludeLib (ExtraDirs _bins includes libs) config = config
{ configExtraIncludeDirs = Set.union
(configExtraIncludeDirs config)
(Set.fromList (map toFilePathNoTrailingSep includes))
, configExtraLibDirs = Set.union
(configExtraLibDirs config)
(Set.fromList (map toFilePathNoTrailingSep libs))
}
-- | Ensure compiler (ghc or ghcjs) is installed and provide the PATHs to add if necessary
ensureCompiler :: (HasConfig env, HasGHCVariant env)
=> SetupOpts
-> RIO env (Maybe ExtraDirs, Maybe CompilerBuild, Bool)
ensureCompiler sopts = do
let wc = whichCompiler (wantedToActual (soptsWantedCompiler sopts))
when (getGhcVersion (wantedToActual (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 ""
msystem <-
if soptsUseSystem sopts
then do
logDebug "Getting system compiler version"
getSystemCompiler wc
else return Nothing
Platform expectedArch _ <- view platformL
let canUseCompiler compilerVersion arch
| soptsSkipGhcCheck sopts = True
| otherwise = isWanted compilerVersion && arch == expectedArch
isWanted = isWantedCompiler (soptsCompilerCheck sopts) (soptsWantedCompiler sopts)
needLocal = not (any (uncurry canUseCompiler) msystem)
getSetupInfo' <- memoizeRef (getSetupInfo (soptsSetupInfoYaml sopts))
let getMmsys2Tool = do
platform <- view platformL
localPrograms <- view $ configL.to configLocalPrograms
installed <- listInstalled localPrograms
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 <- runMemoized getSetupInfo'
osKey <- getOSKey platform
config <- view configL
VersionedDownloadInfo version info <-
case Map.lookup osKey $ siMsys2 si of
Just x -> return x
Nothing -> throwString $ "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
-- If we need to install a GHC or MSYS, try to do so
-- Return the additional directory paths of GHC & MSYS.
(mtools, compilerBuild) <- if needLocal
then do
-- Install GHC
ghcVariant <- view ghcVariantL
config <- view configL
let localPrograms = configLocalPrograms config
installed <- listInstalled localPrograms
possibleCompilers <-
case wc of
Ghc -> do
ghcBuilds <- getGhcBuilds
forM ghcBuilds $ \ghcBuild -> do
ghcPkgName <- parsePackageNameThrowing ("ghc" ++ ghcVariantSuffix ghcVariant ++ compilerBuildSuffix ghcBuild)
return (getInstalledTool installed ghcPkgName (isWanted . ACGhc), ghcBuild)
Ghcjs -> return [(getInstalledGhcjs installed isWanted, CompilerBuildStandard)]
let existingCompilers = concatMap
(\(installedCompiler, compilerBuild) ->
case (installedCompiler, soptsForceReinstall sopts) of
(Just tool, False) -> [(tool, compilerBuild)]
_ -> [])
possibleCompilers
logDebug $
"Found already installed GHC builds: " <>
mconcat (intersperse ", " (map (fromString . compilerBuildName . snd) existingCompilers))
(compilerTool, compilerBuild) <- case existingCompilers of
(tool, build_):_ -> return (tool, build_)
[]
| soptsInstallIfMissing sopts -> do
si <- runMemoized getSetupInfo'
downloadAndInstallPossibleCompilers
(map snd possibleCompilers)
si
(soptsWantedCompiler sopts)
(soptsCompilerCheck sopts)
(soptsGHCBindistURL sopts)
| otherwise -> do
recommendSystemGhc <-
if soptsUseSystem sopts
then return False
else do
msystemGhc <- getSystemCompiler wc
return (any (uncurry canUseCompiler) msystemGhc)
let suggestion = fromMaybe
(mconcat
([ "To install the correct GHC into "
, T.pack (toFilePath (configLocalPrograms config))
, ", try running \"stack setup\" or use the \"--install-ghc\" flag."
] ++
[ " To use your system GHC installation, run \"stack config set system-ghc --global true\", or use the \"--system-ghc\" flag."
| recommendSystemGhc
]))
(soptsResolveMissingGHC sopts)
throwM $ CompilerVersionMismatch
msystem
(soptsWantedCompiler sopts, expectedArch)
ghcVariant
(case possibleCompilers of
[] -> CompilerBuildStandard
(_, compilerBuild):_ -> compilerBuild)
(soptsCompilerCheck sopts)
(soptsStackYaml sopts)
suggestion
-- Install msys2 on windows, if necessary
mmsys2Tool <- getMmsys2Tool
return (Just (Just compilerTool, mmsys2Tool), compilerBuild)
-- Have the right ghc, may still need msys
else do
mmsys2Tool <- getMmsys2Tool
return (Just (Nothing, mmsys2Tool), CompilerBuildStandard)
mpaths <- case mtools of
Nothing -> return Nothing
Just (compilerTool, mmsys2Tool) -> do
-- Add GHC's and MSYS's paths to the config.
let idents = catMaybes [compilerTool, mmsys2Tool]
paths <- mapM extraDirs idents
return $ Just $ mconcat paths
menv <-
case mpaths of
Nothing -> view processContextL
Just ed -> do
menv0 <- view processContextL
m <- either throwM return
$ augmentPathMap (toFilePath <$> edBins ed) (view envVarsL menv0)
mkProcessContext (removeHaskellEnvVars m)
forM_ (soptsUpgradeCabal sopts) $ \version -> do
unless needLocal $ do
logWarn "Trying to change a Cabal library on a GHC not installed by stack."
logWarn "This may fail, caveat emptor!"
withProcessContext menv $ upgradeCabal wc version
case mtools of
Just (Just (ToolGhcjs cv), _) ->
withProcessContext menv
$ ensureGhcjsBooted cv (soptsInstallIfMissing sopts) (soptsGHCJSBootOpts sopts)
_ -> return ()
when (soptsSanityCheck sopts) $ withProcessContext menv $ sanityCheck wc
return (mpaths, Just compilerBuild, needLocal)
-- | Determine which GHC builds to use depending on which shared libraries are available
-- on the system.
getGhcBuilds :: HasConfig env => RIO env [CompilerBuild]
getGhcBuilds = do
config <- view configL
case configGHCBuild config of
Just ghcBuild -> return [ghcBuild]
Nothing -> determineGhcBuild
where
determineGhcBuild = do
-- TODO: a more reliable, flexible, and data driven approach would be to actually download small
-- "test" executables (from setup-info) that link to the same gmp/tinfo versions
-- that GHC does (i.e. built in same environment as the GHC bindist). The algorithm would go
-- something like this:
--
-- check for previous 'uname -a'/`ldconfig -p` plus compiler version/variant in cache
-- if cached, then use that as suffix
-- otherwise:
-- download setup-info
-- go through all with right prefix for os/version/variant
-- first try "standard" (no extra suffix), then the rest
-- download "compatibility check" exe if not already downloaded
-- try running it
-- if successful, then choose that
-- cache compiler suffix with the uname -a and ldconfig -p output hash plus compiler version
--
-- Of course, could also try to make a static GHC bindist instead of all this rigamarole.
platform <- view platformL
case platform of
Platform _ Cabal.Linux -> do
-- Some systems don't have ldconfig in the PATH, so make sure to look in /sbin and /usr/sbin as well
let sbinEnv m = Map.insert
"PATH"
("/sbin:/usr/sbin" <> maybe "" (":" <>) (Map.lookup "PATH" m))
m
eldconfigOut
<- withModifyEnvVars sbinEnv
$ proc "ldconfig" ["-p"]
$ tryAny . fmap fst . readProcess_
let firstWords = case eldconfigOut of
Right ldconfigOut -> mapMaybe (listToMaybe . T.words) $
T.lines $ T.decodeUtf8With T.lenientDecode
$ LBS.toStrict ldconfigOut
Left _ -> []
checkLib lib
| libT `elem` firstWords = do
logDebug ("Found shared library " <> libD <> " in 'ldconfig -p' output")
return True
| osIsWindows =
-- Cannot parse /usr/lib on Windows
return False
| otherwise = do
-- This is a workaround for the fact that libtinfo.so.6 doesn't appear in
-- the 'ldconfig -p' output on Arch even when it exists.
-- There doesn't seem to be an easy way to get the true list of directories
-- to scan for shared libs, but this works for our particular case.
usrLib <- parseAbsDir "/usr/lib"
e <- doesFileExist (usrLib </> lib)
if e
then logDebug ("Found shared library " <> libD <> " in /usr/lib")
else logDebug ("Did not find shared library " <> libD)
return e
where
libT = T.pack (toFilePath lib)
libD = fromString (toFilePath lib)
hastinfo5 <- checkLib relFileLibtinfoSo5
hastinfo6 <- checkLib relFileLibtinfoSo6
hasncurses6 <- checkLib relFileLibncurseswSo6
hasgmp5 <- checkLib relFileLibgmpSo10
hasgmp4 <- checkLib relFileLibgmpSo3
let libComponents = concat
[ [["tinfo6"] | hastinfo6 && hasgmp5]
, [[] | hastinfo5 && hasgmp5]
, [["ncurses6"] | hasncurses6 && hasgmp5 ]
, [["gmp4"] | hasgmp4 ]
]
useBuilds $ map
(\c -> case c of
[] -> CompilerBuildStandard
_ -> CompilerBuildSpecialized (intercalate "-" c))
libComponents
#if !WINDOWS
Platform _ Cabal.FreeBSD -> do
let getMajorVer = readMaybe <=< headMaybe . (splitOn ".")
majorVer <- getMajorVer <$> sysRelease
if majorVer >= Just (12 :: Int) then
useBuilds [CompilerBuildSpecialized "ino64"]
else
useBuilds [CompilerBuildStandard]
Platform _ Cabal.OpenBSD -> do
releaseStr <- mungeRelease <$> sysRelease
useBuilds [CompilerBuildSpecialized releaseStr]
#endif
_ -> useBuilds [CompilerBuildStandard]
useBuilds builds = do
logDebug $
"Potential GHC builds: " <>
mconcat (intersperse ", " (map (fromString . compilerBuildName) builds))
return builds
#if !WINDOWS
-- | Encode an OpenBSD version (like "6.1") into a valid argument for
-- CompilerBuildSpecialized, so "maj6-min1". Later version numbers are prefixed
-- with "r".
-- The result r must be such that "ghc-" ++ r is a valid package name,
-- as recognized by parsePackageNameFromString.
mungeRelease :: String -> String
mungeRelease = intercalate "-" . prefixMaj . splitOn "."
where
prefixFst pfx k (rev : revs) = (pfx ++ rev) : k revs
prefixFst _ _ [] = []
prefixMaj = prefixFst "maj" prefixMin
prefixMin = prefixFst "min" (map ('r':))
sysRelease :: HasLogFunc env => RIO env String
sysRelease =
handleIO (\e -> do
logWarn $ "Could not query OS version" <> displayShow e
return "") .
liftIO .
alloca $ \ ptr ->
do throwErrnoIfMinus1_ "uname" $ uname ptr
peekCString $ release ptr
#endif
-- | Ensure Docker container-compatible 'stack' executable is downloaded
ensureDockerStackExe :: HasConfig env => Platform -> RIO env (Path Abs File)
ensureDockerStackExe containerPlatform = do
config <- view configL
containerPlatformDir <- runReaderT platformOnlyRelDir (containerPlatform,PlatformVariantNone)
let programsPath = configLocalProgramsBase config </> containerPlatformDir
tool = Tool (PackageIdentifier (mkPackageName "stack") stackVersion)
stackExeDir <- installDir programsPath tool
let stackExePath = stackExeDir </> relFileStack
stackExeExists <- doesFileExist stackExePath
unless stackExeExists $ do
logInfo $
"Downloading Docker-compatible " <>
fromString stackProgName <>
" executable"
sri <- downloadStackReleaseInfo Nothing Nothing (Just (versionString stackMinorVersion))
platforms <- runReaderT preferredPlatforms (containerPlatform, PlatformVariantNone)
downloadStackExe platforms sri stackExeDir False (const $ return ())
return stackExePath
-- | Install the newest version or a specific version of Cabal globally
upgradeCabal :: (HasConfig env, HasGHCVariant env)
=> WhichCompiler
-> UpgradeTo
-> RIO env ()
upgradeCabal wc upgradeTo = do
logWarn "Using deprecated --upgrade-cabal feature, this is not recommended"
logWarn "Manipulating the global Cabal is only for debugging purposes"
let name = mkPackageName "Cabal"
installed <- getCabalPkgVer wc
case upgradeTo of
Specific wantedVersion -> do
if installed /= wantedVersion then
doCabalInstall wc installed wantedVersion
else
logInfo $
"No install necessary. Cabal " <>
fromString (versionString installed) <>
" is already installed"
Latest -> do
mversion <- getLatestHackageVersion name UsePreferredVersions
case mversion of
Nothing -> throwString "No Cabal library found in index, cannot upgrade"
Just (PackageIdentifierRevision _name latestVersion _cabalHash) -> do
if installed < latestVersion then
doCabalInstall wc installed latestVersion
else
logInfo $
"No upgrade necessary: Cabal-" <>
fromString (versionString latestVersion) <>
" is the same or newer than latest hackage version " <>
fromString (versionString installed)
-- Configure and run the necessary commands for a cabal install
doCabalInstall :: (HasConfig env, HasGHCVariant env)
=> WhichCompiler
-> Version
-> Version
-> RIO env ()
doCabalInstall wc installed wantedVersion = do
when (wantedVersion >= mkVersion [2, 2]) $ do
logWarn "--upgrade-cabal will almost certainly fail for Cabal 2.2 or later"
logWarn "See: https://github.com/commercialhaskell/stack/issues/4070"
logWarn "Valiantly attempting to build it anyway, but I know this is doomed"
withSystemTempDir "stack-cabal-upgrade" $ \tmpdir -> do
logInfo $
"Installing Cabal-" <>
fromString (versionString wantedVersion) <>
" to replace " <>
fromString (versionString installed)
let name = mkPackageName "Cabal"
suffix <- parseRelDir $ "Cabal-" ++ versionString wantedVersion
let dir = tmpdir </> suffix
unpackPackageLocation dir $ PLIHackage
(PackageIdentifierRevision name wantedVersion CFILatest)
Nothing
compilerPath <- findExecutable (compilerExeName wc)
>>= either throwM parseAbsFile
versionDir <- parseRelDir $ versionString wantedVersion
let installRoot = toFilePath $ parent (parent compilerPath)
</> relDirNewCabal
</> versionDir
withWorkingDir (toFilePath dir) $ proc (compilerExeName wc) ["Setup.hs"] runProcess_
platform <- view platformL
let setupExe = dir </> case platform of
Platform _ Cabal.Windows -> relFileSetupExe
_ -> relFileSetupUpper
dirArgument name' = concat [ "--"
, name'
, "dir="
, installRoot FP.</> name'
]
args = "configure" : map dirArgument (words "lib bin data doc")
withWorkingDir (toFilePath dir) $ mapM_ (\args' -> proc (toFilePath setupExe) args' runProcess_)
[ args
, ["build"]
, ["install"]
]
logInfo "New Cabal library installed"
-- | Get the version of the system compiler, if available
getSystemCompiler
:: (HasProcessContext env, HasLogFunc env)
=> WhichCompiler
-> RIO env (Maybe (ActualCompiler, Arch))
getSystemCompiler wc = do
let exeName = case wc of
Ghc -> "ghc"
Ghcjs -> "ghcjs"
exists <- doesExecutableExist exeName
if exists
then do
eres <- proc exeName ["--info"] $ tryAny . fmap fst . readProcess_
let minfo = do
Right lbs <- Just eres
pairs_ <- readMaybe $ BL8.unpack lbs :: Maybe [(String, String)]
version <- lookup "Project version" pairs_ >>= parseVersionThrowing
arch <- lookup "Target platform" pairs_ >>= simpleParse . takeWhile (/= '-')
return (version, arch)
case (wc, minfo) of
(Ghc, Just (version, arch)) -> return (Just (ACGhc version, arch))
(Ghcjs, Just (_, arch)) -> do
eversion <- tryAny $ getCompilerVersion Ghcjs
case eversion of
Left _ -> return Nothing
Right version -> return (Just (version, arch))
(_, Nothing) -> return Nothing
else return Nothing
-- | Download the most recent SetupInfo
getSetupInfo :: HasConfig env => String -> RIO env SetupInfo
getSetupInfo stackSetupYaml = do
config <- view configL
setupInfos <-
mapM
loadSetupInfo
(SetupInfoFileOrURL stackSetupYaml :
configSetupInfoLocations config)
return (mconcat setupInfos)
where
loadSetupInfo (SetupInfoInline si) = return si
loadSetupInfo (SetupInfoFileOrURL urlOrFile) = do
bs <-
case parseUrlThrow urlOrFile of
Just req -> liftM (LBS.toStrict . getResponseBody) $ httpLbs req
Nothing -> liftIO $ S.readFile urlOrFile
WithJSONWarnings si warnings <- either throwM return (Yaml.decodeEither' bs)
when (urlOrFile /= defaultSetupInfoYaml) $
logJSONWarnings urlOrFile warnings
return si
getInstalledTool :: [Tool] -- ^ already installed
-> PackageName -- ^ package to find
-> (Version -> Bool) -- ^ which versions are acceptable
-> Maybe Tool
getInstalledTool installed name goodVersion =
if null available
then Nothing
else Just $ Tool $ maximumBy (comparing pkgVersion) available
where
available = mapMaybe goodPackage installed
goodPackage (Tool pi') =
if pkgName pi' == name &&
goodVersion (pkgVersion pi')
then Just pi'
else Nothing
goodPackage _ = Nothing
getInstalledGhcjs :: [Tool]
-> (ActualCompiler -> 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 :: HasRunner env
=> Path Abs Dir
-> SetupInfo
-> DownloadInfo
-> Tool
-> (SetupInfo -> Path Abs File -> ArchiveType -> Path Abs Dir -> Path Abs Dir -> RIO env ())
-> RIO env Tool
downloadAndInstallTool programsDir si downloadInfo tool installer = do
ensureDir programsDir
(file, at) <- downloadFromInfo programsDir downloadInfo tool
dir <- installDir programsDir tool
tempDir <- tempInstallDir programsDir tool
liftIO $ ignoringAbsence (removeDirRecur tempDir)
ensureDir tempDir
unmarkInstalled programsDir tool
installer si file at tempDir dir
markInstalled programsDir tool
liftIO $ ignoringAbsence (removeDirRecur tempDir)
return tool
downloadAndInstallCompiler :: (HasConfig env, HasGHCVariant env)
=> CompilerBuild
-> SetupInfo
-> WantedCompiler
-> VersionCheck
-> Maybe String
-> RIO env Tool
downloadAndInstallCompiler ghcBuild si wanted@WCGhc{} versionCheck mbindistURL = do
ghcVariant <- view ghcVariantL
(selectedVersion, downloadInfo) <- case mbindistURL of
Just bindistURL -> do
case ghcVariant of
GHCCustom _ -> return ()
_ -> throwM RequireCustomGHCVariant
case wanted of
WCGhc version ->
return (version, GHCDownloadInfo mempty mempty DownloadInfo
{ downloadInfoUrl = T.pack bindistURL
, downloadInfoContentLength = Nothing
, downloadInfoSha1 = Nothing
, downloadInfoSha256 = Nothing
})
_ ->
throwM WantedMustBeGHC
_ -> do
ghcKey <- getGhcKey ghcBuild
case Map.lookup ghcKey $ siGHCs si of
Nothing -> throwM $ UnknownOSKey ghcKey
Just pairs_ -> getWantedCompilerInfo ghcKey versionCheck wanted ACGhc pairs_
config <- view configL
let installer =
case configPlatform config of
Platform _ Cabal.Windows -> installGHCWindows selectedVersion
_ -> installGHCPosix selectedVersion downloadInfo
logInfo $
"Preparing to install GHC" <>
(case ghcVariant of
GHCStandard -> ""
v -> " (" <> fromString (ghcVariantName v) <> ")") <>
(case ghcBuild of
CompilerBuildStandard -> ""
b -> " (" <> fromString (compilerBuildName b) <> ")") <>
" to an isolated location."
logInfo "This will not interfere with any system-level installation."
ghcPkgName <- parsePackageNameThrowing ("ghc" ++ ghcVariantSuffix ghcVariant ++ compilerBuildSuffix ghcBuild)
let tool = Tool $ PackageIdentifier ghcPkgName selectedVersion
downloadAndInstallTool (configLocalPrograms config) si (gdiDownloadInfo downloadInfo) tool installer
downloadAndInstallCompiler compilerBuild si wanted versionCheck _mbindistUrl = do
config <- view configL
ghcVariant <- view ghcVariantL
case (ghcVariant, compilerBuild) of
(GHCStandard, CompilerBuildStandard) -> 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
-> WantedCompiler
-> (k -> ActualCompiler)
-> Map k a
-> m (k, a)
getWantedCompilerInfo key versionCheck wanted toCV pairs_ =
case mpair of
Just pair -> return pair
Nothing -> throwM $ UnknownCompilerVersion (Set.singleton key) wanted (Set.fromList $ map toCV (Map.keys pairs_))
where
mpair =
listToMaybe $
sortBy (flip (comparing fst)) $
filter (isWantedCompiler versionCheck wanted . toCV . fst) (Map.toList pairs_)
-- | Download and install the first available compiler build.
downloadAndInstallPossibleCompilers
:: (HasGHCVariant env, HasConfig env)
=> [CompilerBuild]
-> SetupInfo
-> WantedCompiler
-> VersionCheck
-> Maybe String
-> RIO env (Tool, CompilerBuild)
downloadAndInstallPossibleCompilers possibleCompilers si wanted versionCheck mbindistURL =
go possibleCompilers Nothing
where
-- This will stop as soon as one of the builds doesn't throw an @UnknownOSKey@ or
-- @UnknownCompilerVersion@ exception (so it will only try subsequent builds if one is non-existent,
-- not if the download or install fails for some other reason).
-- The @Unknown*@ exceptions thrown by each attempt are combined into a single exception
-- (if only @UnknownOSKey@ is thrown, then the first of those is rethrown, but if any
-- @UnknownCompilerVersion@s are thrown then the attempted OS keys and available versions
-- are unioned).
go [] Nothing = throwM UnsupportedSetupConfiguration
go [] (Just e) = throwM e
go (b:bs) e = do
logDebug $ "Trying to setup GHC build: " <> fromString (compilerBuildName b)
er <- try $ downloadAndInstallCompiler b si wanted versionCheck mbindistURL
case er of
Left e'@(UnknownCompilerVersion ks' w' vs') ->
case e of
Nothing -> go bs (Just e')
Just (UnknownOSKey k) ->
go bs $ Just $ UnknownCompilerVersion (Set.insert k ks') w' vs'
Just (UnknownCompilerVersion ks _ vs) ->
go bs $ Just $ UnknownCompilerVersion (Set.union ks' ks) w' (Set.union vs' vs)
Just x -> throwM x
Left e'@(UnknownOSKey k') ->
case e of
Nothing -> go bs (Just e')
Just (UnknownOSKey _) -> go bs e
Just (UnknownCompilerVersion ks w vs) ->
go bs $ Just $ UnknownCompilerVersion (Set.insert k' ks) w vs
Just x -> throwM x
Left e' -> throwM e'
Right r -> return (r, b)
getGhcKey :: (MonadReader env m, HasPlatform env, HasGHCVariant env, MonadThrow m)
=> CompilerBuild -> m Text
getGhcKey ghcBuild = do
ghcVariant <- view ghcVariantL
platform <- view platformL
osKey <- getOSKey platform
return $ osKey <> T.pack (ghcVariantSuffix ghcVariant) <> T.pack (compilerBuildSuffix ghcBuild)
getOSKey :: (MonadThrow 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"