idris-1.3.3: Setup.hs
{-# LANGUAGE CPP #-}
#if !defined(MIN_VERSION_Cabal)
# define MIN_VERSION_Cabal(x,y,z) 0
#endif
import Control.Monad
import Data.IORef
import Control.Exception (SomeException, catch)
import Distribution.Simple
import Distribution.Simple.BuildPaths
import Distribution.Simple.InstallDirs as I
import Distribution.Simple.LocalBuildInfo as L
import qualified Distribution.Simple.Setup as S
import qualified Distribution.Simple.Program as P
import Distribution.Simple.Utils
import Distribution.Compiler
import Distribution.PackageDescription
import Distribution.Text
import Distribution.Verbosity
import System.Environment
import System.Exit
import System.FilePath ((</>), splitDirectories,isAbsolute)
import System.Directory
import qualified System.FilePath.Posix as Px
import System.Process
#if (MIN_VERSION_Cabal(2,0,0))
import Distribution.Types.UnqualComponentName
#endif
-- After Idris is built, we need to check and install the prelude and other libs
-- -----------------------------------------------------------------------------
-- Idris Command Path
-- make on mingw32 exepects unix style separators
#ifdef mingw32_HOST_OS
(<//>) = (Px.</>)
idrisCmd local = Px.joinPath $ splitDirectories $ ".." <//> ".." <//> buildDir local <//> "idris" <//> "idris"
#else
idrisCmd local = ".." </> ".." </> buildDir local </> "idris" </> "idris"
#endif
-- -----------------------------------------------------------------------------
-- Make Commands
-- use GNU make on FreeBSD
#if defined(freebsd_HOST_OS) || defined(dragonfly_HOST_OS)\
|| defined(openbsd_HOST_OS) || defined(netbsd_HOST_OS)
mymake = "gmake"
#else
mymake = "make"
#endif
make verbosity =
P.runProgramInvocation verbosity . P.simpleProgramInvocation mymake
#ifdef mingw32_HOST_OS
windres verbosity = P.runProgramInvocation verbosity . P.simpleProgramInvocation "windres"
#endif
-- -----------------------------------------------------------------------------
-- Flags
usesGMP :: S.ConfigFlags -> Bool
usesGMP flags =
case lookupFlagAssignment (mkFlagName "gmp") (S.configConfigurationsFlags flags) of
Just True -> True
Just False -> False
Nothing -> False
execOnly :: S.ConfigFlags -> Bool
execOnly flags =
case lookupFlagAssignment (mkFlagName "execonly") (S.configConfigurationsFlags flags) of
Just True -> True
Just False -> False
Nothing -> False
isRelease :: S.ConfigFlags -> Bool
isRelease flags =
case lookupFlagAssignment (mkFlagName "release") (S.configConfigurationsFlags flags) of
Just True -> True
Just False -> False
Nothing -> False
isFreestanding :: S.ConfigFlags -> Bool
isFreestanding flags =
case lookupFlagAssignment (mkFlagName "freestanding") (S.configConfigurationsFlags flags) of
Just True -> True
Just False -> False
Nothing -> False
#if !(MIN_VERSION_Cabal(2,0,0))
mkFlagName :: String -> FlagName
mkFlagName = FlagName
#endif
#if !(MIN_VERSION_Cabal(2,2,0))
lookupFlagAssignment :: FlagName -> FlagAssignment -> Maybe Bool
lookupFlagAssignment = lookup
#endif
-- -----------------------------------------------------------------------------
-- Clean
idrisClean _ flags _ _ = cleanStdLib
where
verbosity = S.fromFlag $ S.cleanVerbosity flags
cleanStdLib = makeClean "libs"
makeClean dir = make verbosity [ "-C", dir, "clean", "IDRIS=idris" ]
-- -----------------------------------------------------------------------------
-- Configure
gitHash :: IO String
gitHash = do h <- Control.Exception.catch (readProcess "git" ["rev-parse", "--short", "HEAD"] "")
(\e -> let e' = (e :: SomeException) in return "PRE")
return $ takeWhile (/= '\n') h
-- Generate a module that contains extra library directories passed
-- via command-line to cabal
generateBuildFlagsModule :: Verbosity -> FilePath -> [String] -> IO ()
generateBuildFlagsModule verbosity dir libdirs = do
let buildFlagsModulePath = dir </> "BuildFlags_idris" Px.<.> "hs"
putStrLn $ "Generating " ++ buildFlagsModulePath
createDirectoryIfMissingVerbose verbosity True dir
rewriteFileEx verbosity buildFlagsModulePath contents
where contents = "module BuildFlags_idris where \n\n" ++
"extraLibDirs :: [String]\n" ++
"extraLibDirs = " ++ show libdirs
-- Put the Git hash into a module for use in the program
-- For release builds, just put the empty string in the module
generateVersionModule verbosity dir release = do
hash <- gitHash
let versionModulePath = dir </> "Version_idris" Px.<.> "hs"
putStrLn $ "Generating " ++ versionModulePath ++
if release then " for release" else " for prerelease " ++ hash
createDirectoryIfMissingVerbose verbosity True dir
rewriteFileEx verbosity versionModulePath (versionModuleContents hash)
where versionModuleContents h = "module Version_idris where\n\n" ++
"gitHash :: String\n" ++
if release
then "gitHash = \"\"\n"
else "gitHash = \"git:" ++ h ++ "\"\n"
-- Generate a module that contains the lib path for a freestanding Idris
generateTargetModule verbosity dir targetDir = do
let absPath = isAbsolute targetDir
let targetModulePath = dir </> "Target_idris" Px.<.> "hs"
putStrLn $ "Generating " ++ targetModulePath
createDirectoryIfMissingVerbose verbosity True dir
rewriteFileEx verbosity targetModulePath (versionModuleContents absPath targetDir)
where versionModuleContents absolute td = "module Target_idris where\n\n" ++
"import System.FilePath\n" ++
"import System.Environment\n" ++
"getDataDir :: IO String\n" ++
if absolute
then "getDataDir = return \"" ++ td ++ "\"\n"
else "getDataDir = do \n" ++
" expath <- getExecutablePath\n" ++
" execDir <- return $ dropFileName expath\n" ++
" return $ execDir ++ \"" ++ td ++ "\"\n"
++ "getDataFileName :: FilePath -> IO FilePath\n"
++ "getDataFileName name = do\n"
++ " dir <- getDataDir\n"
++ " return (dir ++ \"/\" ++ name)"
-- a module that has info about existence and location of a bundled toolchain
generateToolchainModule verbosity srcDir toolDir = do
let commonContent = "module Tools_idris where\n\n"
let toolContent = case toolDir of
Just dir -> "hasBundledToolchain = True\n" ++
"getToolchainDir = \"" ++ dir ++ "\"\n"
Nothing -> "hasBundledToolchain = False\n" ++
"getToolchainDir = \"\""
let toolPath = srcDir </> "Tools_idris" Px.<.> "hs"
createDirectoryIfMissingVerbose verbosity True srcDir
rewriteFileEx verbosity toolPath (commonContent ++ toolContent)
idrisConfigure _ flags pkgdesc local = do
configureRTS
withLibLBI pkgdesc local $ \lib libcfg -> do
let libAutogenDir = autogenComponentModulesDir local libcfg
let libDirs = extraLibDirs $ libBuildInfo lib
generateBuildFlagsModule verbosity libAutogenDir libDirs
generateVersionModule verbosity libAutogenDir (isRelease (configFlags local))
if isFreestanding $ configFlags local
then do
toolDir <- lookupEnv "IDRIS_TOOLCHAIN_DIR"
generateToolchainModule verbosity libAutogenDir toolDir
targetDir <- lookupEnv "IDRIS_LIB_DIR"
case targetDir of
Just d -> generateTargetModule verbosity libAutogenDir d
Nothing -> error $ "Trying to build freestanding without a target directory."
++ " Set it by defining IDRIS_LIB_DIR."
else
generateToolchainModule verbosity libAutogenDir Nothing
where
verbosity = S.fromFlag $ S.configVerbosity flags
version = pkgVersion . package $ localPkgDescr local
-- This is a hack. I don't know how to tell cabal that a data file needs
-- installing but shouldn't be in the distribution. And it won't make the
-- distribution if it's not there, so instead I just delete
-- the file after configure.
configureRTS = make verbosity ["-C", "rts", "clean"]
#if !(MIN_VERSION_Cabal(2,0,0))
autogenComponentModulesDir lbi _ = autogenModulesDir lbi
#endif
#if !(MIN_VERSION_Cabal(2,0,0))
rewriteFileEx :: Verbosity -> FilePath -> String -> IO ()
rewriteFileEx _ = rewriteFile
#endif
-- -----------------------------------------------------------------------------
-- Build
getVersion :: Args -> S.BuildFlags -> IO HookedBuildInfo
getVersion args flags = do
hash <- gitHash
let buildinfo = (emptyBuildInfo { cppOptions = ["-DVERSION="++hash] }) :: BuildInfo
return (Just buildinfo, [])
#if !(MIN_VERSION_Cabal(2,0,0))
mkUnqualComponentName = id
#endif
idrisPreBuild args flags = do
#ifdef mingw32_HOST_OS
createDirectoryIfMissingVerbose verbosity True dir
windres verbosity ["icons/idris_icon.rc","-o", dir++"/idris_icon.o"]
return (Nothing, [(mkUnqualComponentName "idris", emptyBuildInfo { ldOptions = [dir ++ "/idris_icon.o"] })])
where
verbosity = S.fromFlag $ S.buildVerbosity flags
dir = S.fromFlagOrDefault "dist" $ S.buildDistPref flags
#else
return (Nothing, [])
#endif
idrisBuild _ flags _ local
= if (execOnly (configFlags local)) then buildRTS
else do buildStdLib
buildRTS
where
verbosity = S.fromFlag $ S.buildVerbosity flags
buildStdLib = do
putStrLn "Building libraries..."
makeBuild "libs"
where
makeBuild dir = make verbosity [ "-C", dir, "build" , "IDRIS=" ++ idrisCmd local]
buildRTS = make verbosity (["-C", "rts", "build"] ++
gmpflag (usesGMP (configFlags local)))
gmpflag False = []
gmpflag True = ["GMP=-DIDRIS_GMP"]
-- -----------------------------------------------------------------------------
-- Copy/Install
idrisInstall verbosity copy pkg local
= if (execOnly (configFlags local)) then installRTS
else do installStdLib
installRTS
installManPage
where
target = datadir $ L.absoluteInstallDirs pkg local copy
installStdLib = do
let target' = target -- </> "libs"
putStrLn $ "Installing libraries in " ++ target'
makeInstall "libs" target'
installRTS = do
let target' = target </> "rts"
putStrLn $ "Installing run time system in " ++ target'
makeInstall "rts" target'
installManPage = do
let mandest = mandir (L.absoluteInstallDirs pkg local copy) ++ "/man1"
notice verbosity $ unwords ["Copying man page to", mandest]
installOrdinaryFiles verbosity mandest [("man", "idris.1")]
makeInstall src target =
make verbosity [ "-C", src, "install" , "TARGET=" ++ target, "IDRIS=" ++ idrisCmd local]
-- -----------------------------------------------------------------------------
-- Test
-- There are two "dataDir" in cabal, and they don't relate to each other.
-- When fetching modules, idris uses the second path (in the pkg record),
-- which by default is the root folder of the project.
-- We want it to be the install directory where we put the idris libraries.
fixPkg pkg target = pkg { dataDir = target }
idrisTestHook args pkg local hooks flags = do
let target = datadir $ L.absoluteInstallDirs pkg local NoCopyDest
testHook simpleUserHooks args (fixPkg pkg target) local hooks flags
-- -----------------------------------------------------------------------------
-- Main
-- Install libraries during both copy and install
-- See https://github.com/haskell/cabal/issues/709
main = defaultMainWithHooks $ simpleUserHooks
{ postClean = idrisClean
, postConf = idrisConfigure
, preBuild = idrisPreBuild
, postBuild = idrisBuild
, postCopy = \_ flags pkg local ->
idrisInstall (S.fromFlag $ S.copyVerbosity flags)
(S.fromFlag $ S.copyDest flags) pkg local
, postInst = \_ flags pkg local ->
idrisInstall (S.fromFlag $ S.installVerbosity flags)
NoCopyDest pkg local
, testHook = idrisTestHook
}