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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 #-}
{-# LANGUAGE TemplateHaskell #-}
module Stack.Setup
( setupEnv
, ensureCompilerAndMsys
, ensureDockerStackExe
, getCabalInstallVersion
, SetupOpts (..)
, defaultSetupInfoYaml
, removeHaskellEnvVars
, withNewLocalBuildTargets
-- * Stack binary download
, StackReleaseInfo
, getDownloadVersion
, stackVersion
, preferredPlatforms
, downloadStackReleaseInfo
, downloadStackExe
) where
import qualified Codec.Archive.Tar as Tar
import Conduit
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 Data.Char (isSpace)
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 (createSource)
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 (CheckHexDigest (..), DownloadRequest (..), HashCheck (..),
drRetryPolicyDefault, getResponseBody, getResponseStatusCode,
httpLbs, httpJSON, parseRequest, parseUrlThrow, setGithubHeaders,
verifiedDownload, withResponse)
import Path
import Path.CheckInstall (warnInstallSearchPathIssues)
import Path.Extra (toFilePathNoTrailingSep)
import Path.IO hiding (findExecutable, withSystemTempDir)
import Prelude (until)
import qualified Pantry
import qualified RIO
import RIO.List
import RIO.PrettyPrint
import RIO.Process
import Stack.Build (build)
import Stack.Build.Haddock (shouldHaddockDeps)
import Stack.Build.Source (loadSourceMap, hashSourceMapData)
import Stack.Build.Target (NeedTargets(..), parseTargets)
import Stack.Config (loadConfig, loadBuildConfig)
import Stack.Constants
import Stack.Constants.Config (distRelativeDir)
import Stack.GhcPkg (createDatabase, getGlobalDB, mkGhcPackagePath, ghcPkgPathEnvVar)
import Stack.Prelude hiding (Display (..))
import Stack.SourceMap
import Stack.Setup.Installed
import Stack.Types.Build
import Stack.Types.Compiler
import Stack.Types.CompilerBuild
import Stack.Types.Config
import Stack.Types.Docker
import Stack.Types.SourceMap
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 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
, 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
| InvalidGhcAt (Path Abs File) SomeException
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"
show (InvalidGhcAt compiler e) =
"Found an invalid compiler at " ++ show (toFilePath compiler) ++ ": " ++ displayException e
-- | Modify the environment variables (like PATH) appropriately, possibly doing installation too
setupEnv :: NeedTargets
-> BuildOptsCLI
-> Maybe Text -- ^ Message to give user when necessary GHC is not available
-> RIO BuildConfig EnvConfig
setupEnv needTargets boptsCLI mResolveMissingGHC = do
config <- view configL
bc <- view buildConfigL
let stackYaml = bcStackYaml bc
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
, soptsResolveMissingGHC = mResolveMissingGHC
, soptsSetupInfoYaml = defaultSetupInfoYaml
, soptsGHCBindistURL = Nothing
, soptsGHCJSBootOpts = ["--clean"]
}
(compilerPaths, ghcBin) <- ensureCompilerAndMsys sopts
let compilerVer = cpCompilerVersion compilerPaths
-- 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 $ edBins ghcBin)
(view envVarsL menv0)
menv <- mkProcessContext env
logDebug "Resolving package entries"
(sourceMap, sourceMapHash) <- runWithGHC menv compilerPaths $ do
smActual <- actualFromGhc (bcSMWanted bc) compilerVer
let actualPkgs = Map.keysSet (smaDeps smActual) <>
Map.keysSet (smaProject smActual)
prunedActual = smActual { smaGlobal = pruneGlobals (smaGlobal smActual) actualPkgs }
haddockDeps = shouldHaddockDeps (configBuild config)
targets <- parseTargets needTargets haddockDeps boptsCLI prunedActual
sourceMap <- loadSourceMap targets boptsCLI smActual
sourceMapHash <- hashSourceMapData boptsCLI sourceMap
pure (sourceMap, sourceMapHash)
let envConfig0 = EnvConfig
{ envConfigBuildConfig = bc
, envConfigBuildOptsCLI = boptsCLI
, envConfigSourceMap = sourceMap
, envConfigSourceMapHash = sourceMapHash
, envConfigCompilerPaths = compilerPaths
}
-- extra installation bin directories
mkDirs <- runRIO envConfig0 extraBinDirs
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 <- runRIO envConfig0 packageDatabaseDeps
runWithGHC menv compilerPaths $ createDatabase (cpPkg compilerPaths) deps
localdb <- runRIO envConfig0 packageDatabaseLocal
runWithGHC menv compilerPaths $ createDatabase (cpPkg compilerPaths) localdb
extras <- runReaderT packageDatabaseExtra envConfig0
let mkGPP locals = mkGhcPackagePath locals localdb deps extras $ cpGlobalDB compilerPaths
distDir <- runReaderT distRelativeDir envConfig0 >>= canonicalizePath
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)
-- Make sure that any .ghc.environment files
-- are ignored, since we're settting up our
-- own package databases. See
-- https://github.com/commercialhaskell/stack/issues/4706
$ (case cpCompilerVersion compilerPaths of
ACGhc version | version >= mkVersion [8, 4, 4] ->
Map.insert "GHC_ENVIRONMENT" "-"
_ -> id)
env
() <- atomicModifyIORef envRef $ \m' ->
(Map.insert es eo m', ())
return eo
envOverride <- liftIO $ getProcessContext' minimalEnvSettings
return EnvConfig
{ envConfigBuildConfig = bc
{ bcConfig = addIncludeLib ghcBin
$ set processContextL envOverride
(view configL bc)
{ configProcessContextSettings = getProcessContext'
}
}
, envConfigBuildOptsCLI = boptsCLI
, envConfigSourceMap = sourceMap
, envConfigSourceMapHash = sourceMapHash
, envConfigCompilerPaths = compilerPaths
}
-- | A modified env which we know has an installed compiler on the PATH.
data WithGHC env = WithGHC !CompilerPaths !env
insideL :: Lens' (WithGHC env) env
insideL = lens (\(WithGHC _ x) -> x) (\(WithGHC cp _) -> WithGHC cp)
instance HasLogFunc env => HasLogFunc (WithGHC env) where
logFuncL = insideL.logFuncL
instance HasRunner env => HasRunner (WithGHC env) where
runnerL = insideL.runnerL
instance HasProcessContext env => HasProcessContext (WithGHC env) where
processContextL = insideL.processContextL
instance HasStylesUpdate env => HasStylesUpdate (WithGHC env) where
stylesUpdateL = insideL.stylesUpdateL
instance HasTerm env => HasTerm (WithGHC env) where
useColorL = insideL.useColorL
termWidthL = insideL.termWidthL
instance HasPantryConfig env => HasPantryConfig (WithGHC env) where
pantryConfigL = insideL.pantryConfigL
instance HasConfig env => HasPlatform (WithGHC env)
instance HasConfig env => HasGHCVariant (WithGHC env)
instance HasConfig env => HasConfig (WithGHC env) where
configL = insideL.configL
instance HasBuildConfig env => HasBuildConfig (WithGHC env) where
buildConfigL = insideL.buildConfigL
instance HasCompiler (WithGHC env) where
compilerPathsL = to (\(WithGHC cp _) -> cp)
-- | 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 and ghc fingerprint (result from 'ghc --info').
runWithGHC :: HasConfig env => ProcessContext -> CompilerPaths -> RIO (WithGHC env) a -> RIO env a
runWithGHC pc cp inner = do
env <- ask
let envg
= WithGHC cp $
set envOverrideSettingsL (\_ -> return pc) $
set processContextL pc env
runRIO envg inner
-- | special helper for GHCJS which needs an updated source map
-- only project dependencies should get included otherwise source map hash will
-- get changed and EnvConfig will become inconsistent
rebuildEnv :: EnvConfig
-> NeedTargets
-> Bool
-> BuildOptsCLI
-> RIO env EnvConfig
rebuildEnv envConfig needTargets haddockDeps boptsCLI = do
let bc = envConfigBuildConfig envConfig
cp = envConfigCompilerPaths envConfig
compilerVer = smCompiler $ envConfigSourceMap envConfig
runRIO (WithGHC cp bc) $ do
smActual <- actualFromGhc (bcSMWanted bc) compilerVer
let actualPkgs = Map.keysSet (smaDeps smActual) <> Map.keysSet (smaProject smActual)
prunedActual = smActual {
smaGlobal = pruneGlobals (smaGlobal smActual) actualPkgs
}
targets <- parseTargets needTargets haddockDeps boptsCLI prunedActual
sourceMap <- loadSourceMap targets boptsCLI smActual
return $
envConfig
{envConfigSourceMap = sourceMap, envConfigBuildOptsCLI = boptsCLI}
-- | Some commands (script, ghci and exec) set targets dynamically
-- see also the note about only local targets for rebuildEnv
withNewLocalBuildTargets :: HasEnvConfig env => [Text] -> RIO env a -> RIO env a
withNewLocalBuildTargets targets f = do
envConfig <- view $ envConfigL
haddockDeps <- view $ configL.to configBuild.to shouldHaddockDeps
let boptsCLI = envConfigBuildOptsCLI envConfig
envConfig' <- rebuildEnv envConfig NeedTargets haddockDeps $
boptsCLI {boptsCLITargets = targets}
local (set envConfigL envConfig') f
-- | Add the include and lib paths to the given Config
addIncludeLib :: ExtraDirs -> Config -> Config
addIncludeLib (ExtraDirs _bins includes libs) config = config
{ configExtraIncludeDirs =
configExtraIncludeDirs config ++
map toFilePathNoTrailingSep includes
, configExtraLibDirs =
configExtraLibDirs config ++
map toFilePathNoTrailingSep libs
}
-- | Ensure both the compiler and the msys toolchain are installed and
-- provide the PATHs to add if necessary
ensureCompilerAndMsys
:: (HasConfig env, HasGHCVariant env)
=> SetupOpts
-> RIO env (CompilerPaths, ExtraDirs)
ensureCompilerAndMsys sopts = do
didWarn <- warnUnsupportedCompiler $ getGhcVersion $ wantedToActual $ soptsWantedCompiler sopts
getSetupInfo' <- memoizeRef (getSetupInfo (soptsSetupInfoYaml sopts))
(cp, ghcPaths) <- ensureCompiler sopts getSetupInfo'
warnUnsupportedCompilerCabal cp didWarn
mmsys2Tool <- ensureMsys sopts getSetupInfo'
paths <-
case mmsys2Tool of
Nothing -> pure ghcPaths
Just msys2Tool -> do
msys2Paths <- extraDirs msys2Tool
pure $ ghcPaths <> msys2Paths
pure (cp, paths)
-- | See <https://github.com/commercialhaskell/stack/issues/4246>
warnUnsupportedCompiler :: HasLogFunc env => Version -> RIO env Bool
warnUnsupportedCompiler ghcVersion = do
if
| ghcVersion < mkVersion [7, 8] -> do
logWarn $
"Stack will almost certainly fail with GHC below version 7.8, requested " <>
fromString (versionString ghcVersion)
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 ""
pure True
| ghcVersion >= mkVersion [8, 7] -> do
logWarn $
"Stack has not been tested with GHC versions above 8.6, and using " <>
fromString (versionString ghcVersion) <>
", this may fail"
pure True
| otherwise -> do
logDebug "Asking for a supported GHC version"
pure False
-- | See <https://github.com/commercialhaskell/stack/issues/4246>
warnUnsupportedCompilerCabal
:: HasLogFunc env
=> CompilerPaths
-> Bool -- ^ already warned about GHC?
-> RIO env ()
warnUnsupportedCompilerCabal cp didWarn = do
unless didWarn $ void $ warnUnsupportedCompiler $ getGhcVersion $ cpCompilerVersion cp
let cabalVersion = cpCabalVersion cp
if
| cabalVersion < mkVersion [1, 19, 2] -> do
logWarn $ "Stack no longer supported Cabal versions below 1.19.2,"
logWarn $ "but version " <> fromString (versionString cabalVersion) <> "was found."
logWarn "This invocation will most likely fail."
logWarn "To fix this, either use a newer version of Stack or a newer resolver"
logWarn "Acceptable resolvers: lts-3.0/nightly-2015-05-05 or later"
| cabalVersion >= mkVersion [2, 5] ->
logWarn $
"Stack has not been tested with Cabal versions above 2.4, but version " <>
fromString (versionString cabalVersion) <>
" was found, this may fail"
| otherwise -> pure ()
-- | Ensure that the msys toolchain is installed if necessary and
-- provide the PATHs to add if necessary
ensureMsys
:: HasConfig env
=> SetupOpts
-> Memoized SetupInfo
-> RIO env (Maybe Tool)
ensureMsys sopts getSetupInfo' = 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) info tool (installMsys2Windows osKey si)
| otherwise -> do
logWarn "Continuing despite missing tool: msys2"
return Nothing
_ -> return Nothing
installGhcBindist
:: HasConfig env
=> SetupOpts
-> Memoized SetupInfo
-> [Tool]
-> RIO env (Tool, CompilerBuild)
installGhcBindist sopts getSetupInfo' installed = do
Platform expectedArch _ <- view platformL
let wanted = soptsWantedCompiler sopts
isWanted = isWantedCompiler (soptsCompilerCheck sopts) (soptsWantedCompiler sopts)
config <- view configL
ghcVariant <- view ghcVariantL
possibleCompilers <-
case whichCompiler $ wantedToActual wanted 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))
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
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."
])
(soptsResolveMissingGHC sopts)
throwM $ CompilerVersionMismatch
Nothing -- FIXME ((\(x, y, _) -> (x, y)) <$> msystem)
(soptsWantedCompiler sopts, expectedArch)
ghcVariant
(case possibleCompilers of
[] -> CompilerBuildStandard
(_, compilerBuild):_ -> compilerBuild)
(soptsCompilerCheck sopts)
(soptsStackYaml sopts)
suggestion
-- | Ensure compiler (ghc or ghcjs) is installed, without worrying about msys
ensureCompiler
:: forall env. (HasConfig env, HasGHCVariant env)
=> SetupOpts
-> Memoized SetupInfo
-> RIO env (CompilerPaths, ExtraDirs)
ensureCompiler sopts getSetupInfo' = do
let wanted = soptsWantedCompiler sopts
wc = whichCompiler $ wantedToActual wanted
Platform expectedArch _ <- view platformL
let canUseCompiler cp
| soptsSkipGhcCheck sopts = pure cp
| not $ isWanted $ cpCompilerVersion cp = throwString "Not the compiler version we want"
| cpArch cp /= expectedArch = throwString "Not the architecture we want"
| otherwise = pure cp
isWanted = isWantedCompiler (soptsCompilerCheck sopts) (soptsWantedCompiler sopts)
let checkCompiler :: Path Abs File -> RIO env (Maybe CompilerPaths)
checkCompiler compiler = do
eres <- tryAny $ pathsFromCompiler wc CompilerBuildStandard False compiler >>= canUseCompiler
case eres of
Left e -> do
logDebug $ "Not using compiler at " <> displayShow (toFilePath compiler) <> ": " <> displayShow e
pure Nothing
Right cp -> pure $ Just cp
mcp <-
if soptsUseSystem sopts
then do
logDebug "Getting system compiler version"
runConduit $
sourceSystemCompilers wanted .|
concatMapMC checkCompiler .|
await
else return Nothing
case mcp of
Nothing -> ensureSandboxedCompiler sopts getSetupInfo'
Just cp -> do
let paths = ExtraDirs { edBins = [parent $ cpCompiler cp], edInclude = [], edLib = [] }
pure (cp, paths)
ensureSandboxedCompiler
:: HasConfig env
=> SetupOpts
-> Memoized SetupInfo
-> RIO env (CompilerPaths, ExtraDirs)
ensureSandboxedCompiler sopts getSetupInfo' = do
let wanted = soptsWantedCompiler sopts
(compilerBuild, mcompiler, isSandboxed, paths, mcompilerTool) <- do
-- List installed tools
config <- view configL
let localPrograms = configLocalPrograms config
installed <- listInstalled localPrograms
logDebug $ "Installed tools: \n - " <> mconcat (intersperse "\n - " (map (fromString . toolString) installed))
(compilerTool, compilerBuild) <-
case soptsWantedCompiler sopts of
-- shall we build GHC from source?
WCGhcGit commitId flavour -> buildGhcFromSource getSetupInfo' installed (configCompilerRepository config) commitId flavour
_ -> installGhcBindist sopts getSetupInfo' installed
paths <- extraDirs compilerTool
pure (compilerBuild, Nothing, True, paths, Just compilerTool)
let wc = whichCompiler $ wantedToActual wanted
compiler <-
case mcompiler of
Just compiler -> pure compiler
Nothing -> do
menv0 <- view processContextL
m <- either throwM return
$ augmentPathMap (toFilePath <$> edBins paths) (view envVarsL menv0)
menv <- mkProcessContext (removeHaskellEnvVars m)
case mcompilerTool of
Just (ToolGhcjs cv) ->
withProcessContext menv $
ensureGhcjsBooted cv (soptsInstallIfMissing sopts) (soptsGHCJSBootOpts sopts)
_ -> pure ()
let names =
case wanted of
WCGhc version -> ["ghc-" ++ versionString version, "ghc"]
WCGhcGit{} -> ["ghc"]
WCGhcjs{} -> ["ghcjs"]
loop [] = do
logError $ "Looked for sandboxed compiler named one of: " <> displayShow names
logError $ "Could not find it on the paths " <> displayShow (edBins paths)
throwString "Could not find sandboxed compiler"
loop (x:xs) = do
res <- findExecutable x
case res of
Left _ -> loop xs
Right y -> parseAbsFile y
withProcessContext menv $ loop names
when (soptsSanityCheck sopts) $ sanityCheck compiler
cp <- pathsFromCompiler wc compilerBuild isSandboxed compiler
pure (cp, paths)
pathsFromCompiler
:: forall env. (HasLogFunc env, HasProcessContext env)
=> WhichCompiler
-> CompilerBuild
-> Bool
-> Path Abs File -- ^ executable filepath
-> RIO env CompilerPaths
pathsFromCompiler wc compilerBuild isSandboxed compiler = handleAny onErr $ do
let dir = toFilePath $ parent compiler
suffixNoVersion
| osIsWindows = ".exe"
| otherwise = ""
msuffixWithVersion = do
let prefix =
case wc of
Ghc -> "ghc-"
Ghcjs -> "ghcjs-"
fmap ("-" ++) $ stripPrefix prefix $ toFilePath $ filename compiler
suffixes = maybe id (:) msuffixWithVersion [suffixNoVersion]
findHelper :: (WhichCompiler -> [String]) -> RIO env (Path Abs File)
findHelper getNames = do
let toTry = [dir ++ name ++ suffix | suffix <- suffixes, name <- getNames wc]
loop [] = throwString $ "Could not find any of: " <> show toTry
loop (guessedPath':rest) = do
guessedPath <- parseAbsFile guessedPath'
exists <- doesFileExist guessedPath
if exists
then pure guessedPath
else loop rest
logDebug $ "Looking for executable(s): " <> displayShow toTry
loop toTry
pkg <- fmap GhcPkgExe $ findHelper $ \case
Ghc -> ["ghc-pkg"]
Ghcjs -> ["ghcjs-pkg"]
menv0 <- view processContextL
menv <- mkProcessContext (removeHaskellEnvVars (view envVarsL menv0))
interpreter <- findHelper $
\case
Ghc -> ["runghc"]
Ghcjs -> ["runghcjs"]
haddock <- findHelper $
\case
Ghc -> ["haddock", "haddock-ghc"]
Ghcjs -> ["haddock-ghcjs"]
infobs <- proc (toFilePath compiler) ["--info"]
$ fmap (toStrictBytes . fst) . readProcess_
infotext <-
case decodeUtf8' infobs of
Left e -> throwString $ "GHC info is not valid UTF-8: " ++ show e
Right info -> pure info
infoPairs :: [(String, String)] <-
case readMaybe $ T.unpack infotext of
Nothing -> throwString "GHC info does not parse as a list of pairs"
Just infoPairs -> pure infoPairs
let infoMap = Map.fromList infoPairs
eglobaldb <- tryAny $
case Map.lookup "Global Package DB" infoMap of
Nothing -> throwString "Key 'Global Package DB' not found in GHC info"
Just db -> parseAbsDir db
arch <-
case Map.lookup "Target platform" infoMap of
Nothing -> throwString "Key 'Target platform' not found in GHC info"
Just targetPlatform ->
case simpleParse $ takeWhile (/= '-') targetPlatform of
Nothing -> throwString $ "Invalid target platform in GHC info: " ++ show targetPlatform
Just arch -> pure arch
compilerVer <-
case wc of
Ghc ->
case Map.lookup "Project version" infoMap of
Nothing -> do
logWarn "Key 'Project version' not found in GHC info"
getCompilerVersion wc compiler
Just versionString' -> ACGhc <$> parseVersionThrowing versionString'
Ghcjs -> getCompilerVersion wc compiler
globaldb <-
case eglobaldb of
Left e -> do
logWarn "Parsing global DB from GHC info failed"
logWarn $ displayShow e
logWarn "Asking ghc-pkg directly"
withProcessContext menv $ getGlobalDB pkg
Right x -> pure x
globalDump <- withProcessContext menv $ globalsFromDump pkg
cabalPkgVer <-
case Map.lookup cabalPackageName globalDump of
Nothing -> throwString $ "Cabal library not found in global package database for " ++ toFilePath compiler
Just dp -> pure $ pkgVersion $ dpPackageIdent dp
return CompilerPaths
{ cpBuild = compilerBuild
, cpArch = arch
, cpSandboxed = isSandboxed
, cpCompilerVersion = compilerVer
, cpCompiler = compiler
, cpPkg = pkg
, cpInterpreter = interpreter
, cpHaddock = haddock
, cpCabalVersion = cabalPkgVer
, cpGlobalDB = globaldb
, cpGhcInfo = infobs
, cpGlobalDump = globalDump
}
where
onErr = throwIO . InvalidGhcAt compiler
buildGhcFromSource :: forall env.
( HasTerm env
, HasProcessContext env
, HasConfig env
) => Memoized SetupInfo -> [Tool] -> CompilerRepository -> Text -> Text
-> RIO env (Tool, CompilerBuild)
buildGhcFromSource getSetupInfo' installed (CompilerRepository url) commitId flavour = do
config <- view configL
let compilerTool = ToolGhcGit commitId flavour
-- detect when the correct GHC is already installed
if compilerTool `elem` installed
then return (compilerTool,CompilerBuildStandard)
else do
let repo = Repo
{ repoCommit = commitId
, repoUrl = url
, repoType = RepoGit
, repoSubdir = mempty
}
-- clone the repository and execute the given commands
Pantry.withRepo repo $ do
-- withRepo is guaranteed to set workingDirL, so let's get it
mcwd <- traverse parseAbsDir =<< view workingDirL
let cwd = fromMaybe (error "Invalid working directory") mcwd
threads <- view $ configL.to configJobs
let
hadrianArgs = fmap T.unpack
[ "-c" -- run ./boot and ./configure
, "-j" <> tshow threads -- parallel build
, "--flavour=" <> flavour -- selected flavour
, "binary-dist"
]
hadrianCmd
| osIsWindows = hadrianCmdWindows
| otherwise = hadrianCmdPosix
logSticky $ "Building GHC from source with `"
<> RIO.display flavour
<> "` flavour. It can take a long time (more than one hour)..."
-- We need to provide an absolute path to the script since
-- the process package only sets working directory _after_
-- discovering the executable
proc (toFilePath (cwd </> hadrianCmd)) hadrianArgs runProcess_
-- find the bindist and install it
bindistPath <- parseRelDir "_build/bindist"
(_,files) <- listDir (cwd </> bindistPath)
let
isBindist p = "ghc-" `isPrefixOf` (toFilePath (filename p))
&& fileExtension (filename p) == ".xz"
mbindist = filter isBindist files
case mbindist of
[bindist] -> do
let bindist' = T.pack (toFilePath bindist)
dlinfo = DownloadInfo
{ downloadInfoUrl = bindist'
-- we can specify a filepath instead of a URL
, downloadInfoContentLength = Nothing
, downloadInfoSha1 = Nothing
, downloadInfoSha256 = Nothing
}
ghcdlinfo = GHCDownloadInfo mempty mempty dlinfo
installer
| osIsWindows = installGHCWindows Nothing
| otherwise = installGHCPosix Nothing ghcdlinfo
si <- runMemoized getSetupInfo'
_ <- downloadAndInstallTool
(configLocalPrograms config)
dlinfo
compilerTool
(installer si)
return (compilerTool, CompilerBuildStandard)
_ -> do
forM_ files (logDebug . fromString . (" - " ++) . toFilePath)
error "Can't find hadrian generated bindist"
-- | 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.x doesn't appear in
-- the 'ldconfig -p' output on Arch or Slackware 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 cases.
let extraPaths = []
#if !WINDOWS
++ [$(mkAbsDir "/usr/lib"),$(mkAbsDir "/usr/lib64")]
#endif
matches <- filterM (doesFileExist .(</> lib)) extraPaths
case matches of
[] -> logDebug ("Did not find shared library " <> libD)
>> return False
(path:_) -> logDebug ("Found shared library " <> libD
<> " in " <> fromString (Path.toFilePath path))
>> return True
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