/usr/lib/hugs/packages/Cabal/Distribution/Simple.hs is in libhugs-cabal-bundled 98.200609.21-5.3.
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-----------------------------------------------------------------------------
-- |
-- Module : Distribution.Simple
-- Copyright : Isaac Jones 2003-2005
--
-- Maintainer : Isaac Jones <ijones@syntaxpolice.org>
-- Stability : alpha
-- Portability : portable
--
-- Explanation: Simple build system; basically the interface for
-- Distribution.Simple.\* modules. When given the parsed command-line
-- args and package information, is able to perform basic commands
-- like configure, build, install, register, etc.
--
-- This module isn't called \"Simple\" because it's simple. Far from
-- it. It's called \"Simple\" because it does complicated things to
-- simple software.
{- All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following
disclaimer in the documentation and/or other materials provided
with the distribution.
* Neither the name of Isaac Jones nor the names of other
contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -}
module Distribution.Simple (
module Distribution.Package,
module Distribution.Version,
module Distribution.License,
module Distribution.Compiler,
module Language.Haskell.Extension,
-- * Simple interface
defaultMain, defaultMainNoRead, defaultMainArgs,
-- * Customization
UserHooks(..), Args,
defaultMainWithHooks, defaultUserHooks, emptyUserHooks,
defaultHookedPackageDesc
) where
-- local
import Distribution.Compiler
import Distribution.Package --must not specify imports, since we're exporting moule.
import Distribution.PackageDescription
import Distribution.Program(lookupProgram, Program(..), ProgramConfiguration(..),
haddockProgram, rawSystemProgram, defaultProgramConfiguration,
pfesetupProgram, updateProgram, rawSystemProgramConf)
import Distribution.PreProcess (knownSuffixHandlers, ppSuffixes, ppCpp',
ppUnlit, removePreprocessedPackage,
preprocessSources, PPSuffixHandler)
import Distribution.Setup
import Distribution.Simple.Build ( build )
import Distribution.Simple.SrcDist ( sdist )
import Distribution.Simple.Register ( register, unregister,
writeInstalledConfig, installedPkgConfigFile,
regScriptLocation, unregScriptLocation
)
import Distribution.Simple.Configure(getPersistBuildConfig, maybeGetPersistBuildConfig,
findProgram, configure, writePersistBuildConfig,
localBuildInfoFile)
import Distribution.Simple.LocalBuildInfo (LocalBuildInfo(..))
import Distribution.Simple.Install(install)
import Distribution.Simple.Utils (die, currentDir, rawSystemVerbose,
defaultPackageDesc, defaultHookedPackageDesc,
moduleToFilePath, findFile,
distPref, srcPref, haddockPref)
import Language.Haskell.Extension
-- Base
import System.Environment(getArgs)
import System.Exit(ExitCode(..), exitWith)
import System.Directory(removeFile, doesFileExist, doesDirectoryExist)
import Distribution.License
import Control.Monad(when, unless)
import Data.List ( intersperse, unionBy )
import Data.Maybe ( isJust, fromJust )
import System.IO.Error (try)
import Distribution.GetOpt
import Distribution.Compat.Directory(createDirectoryIfMissing,removeDirectoryRecursive, copyFile)
import Distribution.Compat.FilePath(joinFileName, joinPaths, joinFileExt,
splitFileName, splitFileExt, changeFileExt)
import Distribution.Version
type Args = [String]
-- | WARNING: The hooks interface is under rather constant flux as we
-- try to understand users needs. Setup files that depend on this
-- interface may break in future releases. Hooks allow authors to add
-- specific functionality before and after a command is run, and also
-- to specify additional preprocessors.
data UserHooks = UserHooks
{
runTests :: Args -> Bool -> PackageDescription -> LocalBuildInfo -> IO ExitCode, -- ^Used for @.\/setup test@
readDesc :: IO (Maybe PackageDescription), -- ^Read the description file
hookedPreProcessors :: [ PPSuffixHandler ],
-- ^Custom preprocessors in addition to and overriding 'knownSuffixHandlers'.
hookedPrograms :: [Program],
-- ^These programs are detected at configure time. Arguments for them are added to the configure command.
-- |Hook to run before configure command
preConf :: Args -> ConfigFlags -> IO HookedBuildInfo,
-- |Over-ride this hook to get different behavior during configure.
confHook :: PackageDescription -> ConfigFlags -> IO LocalBuildInfo,
-- |Hook to run after configure command
postConf :: Args -> ConfigFlags -> PackageDescription -> LocalBuildInfo -> IO ExitCode,
-- |Hook to run before build command. Second arg indicates verbosity level.
preBuild :: Args -> BuildFlags -> IO HookedBuildInfo,
-- |Over-ride this hook to get different behavior during build.
buildHook :: PackageDescription -> LocalBuildInfo -> Maybe UserHooks -> BuildFlags -> IO (),
-- |Hook to run after build command. Second arg indicates verbosity level.
postBuild :: Args -> BuildFlags -> PackageDescription -> LocalBuildInfo -> IO ExitCode,
-- |Hook to run before clean command. Second arg indicates verbosity level.
preClean :: Args -> CleanFlags -> IO HookedBuildInfo,
-- |Over-ride this hook to get different behavior during clean.
cleanHook :: PackageDescription -> Maybe LocalBuildInfo -> Maybe UserHooks -> CleanFlags -> IO (),
-- |Hook to run after clean command. Second arg indicates verbosity level.
postClean :: Args -> CleanFlags -> PackageDescription -> Maybe LocalBuildInfo -> IO ExitCode,
-- |Hook to run before copy command
preCopy :: Args -> CopyFlags -> IO HookedBuildInfo,
-- |Over-ride this hook to get different behavior during copy.
copyHook :: PackageDescription -> LocalBuildInfo -> Maybe UserHooks -> CopyFlags -> IO (),
-- |Hook to run after copy command
postCopy :: Args -> CopyFlags -> PackageDescription -> LocalBuildInfo -> IO ExitCode,
-- |Hook to run before install command
preInst :: Args -> InstallFlags -> IO HookedBuildInfo,
-- |Over-ride this hook to get different behavior during install.
instHook :: PackageDescription -> LocalBuildInfo -> Maybe UserHooks -> InstallFlags -> IO (),
-- |Hook to run after install command. postInst should be run
-- on the target, not on the build machine.
postInst :: Args -> InstallFlags -> PackageDescription -> LocalBuildInfo -> IO ExitCode,
-- |Hook to run before sdist command. Second arg indicates verbosity level.
preSDist :: Args -> SDistFlags -> IO HookedBuildInfo,
-- |Over-ride this hook to get different behavior during sdist.
sDistHook :: PackageDescription -> Maybe LocalBuildInfo -> Maybe UserHooks -> SDistFlags -> IO (),
-- |Hook to run after sdist command. Second arg indicates verbosity level.
postSDist :: Args -> SDistFlags -> PackageDescription -> Maybe LocalBuildInfo -> IO ExitCode,
-- |Hook to run before register command
preReg :: Args -> RegisterFlags -> IO HookedBuildInfo,
-- |Over-ride this hook to get different behavior during pfe.
regHook :: PackageDescription -> LocalBuildInfo -> Maybe UserHooks -> RegisterFlags -> IO (),
-- |Hook to run after register command
postReg :: Args -> RegisterFlags -> PackageDescription -> LocalBuildInfo -> IO ExitCode,
-- |Hook to run before unregister command
preUnreg :: Args -> RegisterFlags -> IO HookedBuildInfo,
-- |Over-ride this hook to get different behavior during pfe.
unregHook :: PackageDescription -> LocalBuildInfo -> Maybe UserHooks -> RegisterFlags -> IO (),
-- |Hook to run after unregister command
postUnreg :: Args -> RegisterFlags -> PackageDescription -> LocalBuildInfo -> IO ExitCode,
-- |Hook to run before haddock command. Second arg indicates verbosity level.
preHaddock :: Args -> HaddockFlags -> IO HookedBuildInfo,
-- |Hook to run after haddock command. Second arg indicates verbosity level.
-- |Over-ride this hook to get different behavior during haddock.
haddockHook :: PackageDescription -> LocalBuildInfo -> Maybe UserHooks -> HaddockFlags -> IO (),
postHaddock :: Args -> HaddockFlags -> PackageDescription -> LocalBuildInfo -> IO ExitCode,
-- |Hook to run before pfe command. Second arg indicates verbosity level.
prePFE :: Args -> PFEFlags -> IO HookedBuildInfo,
-- |Over-ride this hook to get different behavior during pfe.
pfeHook :: PackageDescription -> LocalBuildInfo -> Maybe UserHooks -> PFEFlags -> IO (),
-- |Hook to run after pfe command. Second arg indicates verbosity level.
postPFE :: Args -> PFEFlags -> PackageDescription -> LocalBuildInfo -> IO ExitCode
}
-- |A simple implementation of @main@ for a Cabal setup script.
-- It reads the package description file using IO, and performs the
-- action specified on the command line.
defaultMain :: IO ()
defaultMain = getArgs >>=defaultMainArgs
defaultMainArgs :: [String] -> IO ()
defaultMainArgs args = do
(action, args) <- parseGlobalArgs (allPrograms Nothing) args
pkg_descr_file <- defaultPackageDesc
pkg_descr <- readPackageDescription pkg_descr_file
defaultMainWorker pkg_descr action args Nothing
return ()
-- | A customizable version of 'defaultMain'.
defaultMainWithHooks :: UserHooks -> IO ()
defaultMainWithHooks hooks
= do args <- getArgs
(action, args) <- parseGlobalArgs (allPrograms (Just hooks)) args
maybeDesc <- readDesc hooks
pkg_descr <- maybe (defaultPackageDesc >>= readPackageDescription)
return maybeDesc
defaultMainWorker pkg_descr action args (Just hooks)
return ()
-- |Like 'defaultMain', but accepts the package description as input
-- rather than using IO to read it.
defaultMainNoRead :: PackageDescription -> IO ()
defaultMainNoRead pkg_descr
= do args <- getArgs
(action, args) <- parseGlobalArgs (allPrograms Nothing) args
defaultMainWorker pkg_descr action args Nothing
return ()
-- |Combine the programs in the given hooks with the programs built
-- into cabal.
allPrograms :: Maybe UserHooks
-> ProgramConfiguration -- combine defaults w/ user programs
allPrograms Nothing = defaultProgramConfiguration
allPrograms (Just h) = foldl (\pConf p -> updateProgram (Just p) pConf)
defaultProgramConfiguration
(hookedPrograms h)
-- |Combine the preprocessors in the given hooks with the
-- preprocessors built into cabal.
allSuffixHandlers :: Maybe UserHooks
-> [PPSuffixHandler]
allSuffixHandlers hooks
= maybe knownSuffixHandlers
(\h -> overridesPP (hookedPreProcessors h) knownSuffixHandlers)
hooks
where
overridesPP :: [PPSuffixHandler] -> [PPSuffixHandler] -> [PPSuffixHandler]
overridesPP = unionBy (\x y -> fst x == fst y)
-- |Helper function for /defaultMain/ and /defaultMainNoRead/
defaultMainWorker :: PackageDescription
-> Action
-> [String] -- ^args1
-> Maybe UserHooks
-> IO ExitCode
defaultMainWorker pkg_descr_in action args hooks
= do case action of
ConfigCmd flags -> do
(flags, optFns, args) <-
parseConfigureArgs (allPrograms hooks) flags args [buildDirOpt]
pkg_descr <- hookOrInArgs preConf args flags
(warns, ers) <- sanityCheckPackage pkg_descr
errorOut warns ers
let c = maybe (confHook defaultUserHooks) confHook hooks
localbuildinfo <- c pkg_descr flags
writePersistBuildConfig (foldr id localbuildinfo optFns)
postHook postConf args flags pkg_descr localbuildinfo
BuildCmd -> do
(flags, _, args) <- parseBuildArgs args []
pkg_descr <- hookOrInArgs preBuild args flags
localbuildinfo <- getPersistBuildConfig
cmdHook buildHook pkg_descr localbuildinfo flags
postHook postBuild args flags pkg_descr localbuildinfo
HaddockCmd -> do
(verbose, _, args) <- parseHaddockArgs emptyHaddockFlags args []
pkg_descr <- hookOrInArgs preHaddock args verbose
localbuildinfo <- getPersistBuildConfig
cmdHook haddockHook pkg_descr localbuildinfo verbose
postHook postHaddock args verbose pkg_descr localbuildinfo
ProgramaticaCmd -> do
(verbose, _, args) <- parseProgramaticaArgs args []
pkg_descr <- hookOrInArgs prePFE args verbose
localbuildinfo <- getPersistBuildConfig
cmdHook pfeHook pkg_descr localbuildinfo verbose
postHook postPFE args verbose pkg_descr localbuildinfo
CleanCmd -> do
(verbose,_, args) <- parseCleanArgs args []
pkg_descr <- hookOrInArgs preClean args verbose
maybeLocalbuildinfo <- maybeGetPersistBuildConfig
cmdHook cleanHook pkg_descr maybeLocalbuildinfo verbose
postHook postClean args verbose pkg_descr maybeLocalbuildinfo
CopyCmd mprefix -> do
(flags, _, args) <- parseCopyArgs (CopyFlags mprefix 0) args []
pkg_descr <- hookOrInArgs preCopy args flags
localbuildinfo <- getPersistBuildConfig
cmdHook copyHook pkg_descr localbuildinfo flags
postHook postCopy args flags pkg_descr localbuildinfo
InstallCmd -> do
(flags, _, args) <- parseInstallArgs emptyInstallFlags args []
pkg_descr <- hookOrInArgs preInst args flags
localbuildinfo <- getPersistBuildConfig
cmdHook instHook pkg_descr localbuildinfo flags
postHook postInst args flags pkg_descr localbuildinfo
SDistCmd -> do
(flags,_, args) <- parseSDistArgs args []
pkg_descr <- hookOrInArgs preSDist args flags
maybeLocalbuildinfo <- maybeGetPersistBuildConfig
cmdHook sDistHook pkg_descr maybeLocalbuildinfo flags
postHook postSDist args flags pkg_descr maybeLocalbuildinfo
TestCmd -> do
(verbose,_, args) <- parseTestArgs args []
case hooks of
Nothing -> return ExitSuccess
Just h -> do localbuildinfo <- getPersistBuildConfig
out <- (runTests h) args False pkg_descr_in localbuildinfo
when (isFailure out) (exitWith out)
return out
RegisterCmd -> do
(flags, _, args) <- parseRegisterArgs emptyRegisterFlags args []
pkg_descr <- hookOrInArgs preReg args flags
localbuildinfo <- getPersistBuildConfig
cmdHook regHook pkg_descr localbuildinfo flags
postHook postReg args flags pkg_descr localbuildinfo
UnregisterCmd -> do
(flags,_, args) <- parseUnregisterArgs emptyRegisterFlags args []
pkg_descr <- hookOrInArgs preUnreg args flags
localbuildinfo <- getPersistBuildConfig
cmdHook unregHook pkg_descr localbuildinfo flags
postHook postUnreg args flags pkg_descr localbuildinfo
HelpCmd -> return ExitSuccess -- this is handled elsewhere
where
hookOrInArgs :: (UserHooks -> ([String] -> b -> IO HookedBuildInfo))
-> [String]
-> b
-> IO PackageDescription
hookOrInArgs f a i
= case hooks of
Nothing -> no_extra_flags a >> return pkg_descr_in
Just h -> do pbi <- f h a i
return (updatePackageDescription pbi pkg_descr_in)
cmdHook f desc lbi = (maybe (f defaultUserHooks) f hooks) desc lbi hooks
postHook f args flags pkg_descr localbuildinfo
= case hooks of
Nothing -> return ExitSuccess
Just h -> f h args flags pkg_descr localbuildinfo
isFailure :: ExitCode -> Bool
isFailure (ExitFailure _) = True
isFailure _ = False
-- (filter (\x -> notElem x overriders) overridden) ++ overriders
getModulePaths :: BuildInfo -> [String] -> IO [FilePath]
getModulePaths bi =
fmap concat .
mapM (flip (moduleToFilePath (hsSourceDirs bi)) ["hs", "lhs"])
haddock :: PackageDescription -> LocalBuildInfo -> Maybe UserHooks -> HaddockFlags -> IO ()
haddock pkg_descr lbi hooks (HaddockFlags hoogle verbose) = do
let pps = allSuffixHandlers hooks
confHaddock <- do let programConf = withPrograms lbi
let haddockName = programName haddockProgram
mHaddock <- lookupProgram haddockName programConf
maybe (die "haddock command not found") return mHaddock
let tmpDir = joinPaths (buildDir lbi) "tmp"
createDirectoryIfMissing True tmpDir
createDirectoryIfMissing True haddockPref
preprocessSources pkg_descr lbi verbose pps
setupMessage "Running Haddock for" pkg_descr
let replaceLitExts = map (joinFileName tmpDir . flip changeFileExt "hs")
let mockAll bi = mapM_ (mockPP ["-D__HADDOCK__"] pkg_descr bi lbi tmpDir verbose)
let showPkg = showPackageId (package pkg_descr)
let showDepPkgs = map showPackageId (packageDeps lbi)
let outputFlag = if hoogle then "--hoogle" else "--html"
withLib pkg_descr () $ \lib -> do
let bi = libBuildInfo lib
inFiles <- getModulePaths bi (exposedModules lib ++ otherModules bi)
mockAll bi inFiles
let prologName = showPkg ++ "-haddock-prolog.txt"
writeFile prologName (description pkg_descr ++ "\n")
let outFiles = replaceLitExts inFiles
let haddockFile = joinFileName haddockPref (haddockName pkg_descr)
-- FIX: replace w/ rawSystemProgramConf?
rawSystemProgram verbose confHaddock
([outputFlag,
"--odir=" ++ haddockPref,
"--title=" ++ showPkg ++ ": " ++ synopsis pkg_descr,
"--package=" ++ showPkg,
"--dump-interface=" ++ haddockFile,
"--prologue=" ++ prologName]
++ map ("--use-package=" ++) showDepPkgs
++ programArgs confHaddock
++ (if verbose > 4 then ["--verbose"] else [])
++ outFiles
++ map ("--hide=" ++) (otherModules bi)
)
removeFile prologName
withExe pkg_descr $ \exe -> do
let bi = buildInfo exe
exeTargetDir = haddockPref `joinFileName` exeName exe
createDirectoryIfMissing True exeTargetDir
inFiles' <- getModulePaths bi (otherModules bi)
srcMainPath <- findFile (hsSourceDirs bi) (modulePath exe)
let inFiles = srcMainPath : inFiles'
mockAll bi inFiles
let outFiles = replaceLitExts inFiles
rawSystemProgram verbose confHaddock
([outputFlag,
"--odir=" ++ exeTargetDir,
"--title=" ++ exeName exe]
++ map ("--use-package=" ++) (showPkg:showDepPkgs)
++ programArgs confHaddock
++ (if verbose > 4 then ["--verbose"] else [])
++ outFiles
)
removeDirectoryRecursive tmpDir
where
mockPP inputArgs pkg_descr bi lbi pref verbose file
= do let (filePref, fileName) = splitFileName file
let targetDir = joinPaths pref filePref
let targetFile = joinFileName targetDir fileName
let (targetFileNoext, targetFileExt) = splitFileExt targetFile
createDirectoryIfMissing True targetDir
if (needsCpp pkg_descr)
then ppCpp' inputArgs bi lbi file targetFile verbose
else copyFile file targetFile >> return ExitSuccess
when (targetFileExt == "lhs") $ do
ppUnlit targetFile (joinFileExt targetFileNoext "hs") verbose
return ()
needsCpp :: PackageDescription -> Bool
needsCpp p =
hasLibs p &&
any (== CPP) (extensions $ libBuildInfo $ fromJust $ library p)
pfe :: PackageDescription -> LocalBuildInfo -> Maybe UserHooks -> PFEFlags -> IO ()
pfe pkg_descr _lbi hooks (PFEFlags verbose) = do
let pps = allSuffixHandlers hooks
unless (hasLibs pkg_descr) $
die "no libraries found in this project"
withLib pkg_descr () $ \lib -> do
lbi <- getPersistBuildConfig
let bi = libBuildInfo lib
let mods = exposedModules lib ++ otherModules (libBuildInfo lib)
preprocessSources pkg_descr lbi verbose pps
inFiles <- getModulePaths bi mods
rawSystemProgramConf verbose (programName pfesetupProgram) (withPrograms lbi)
("noplogic":"cpp": (if verbose > 4 then ["-v"] else [])
++ inFiles)
return ()
clean :: PackageDescription -> Maybe LocalBuildInfo -> Maybe UserHooks -> CleanFlags -> IO ()
clean pkg_descr maybeLbi hooks (CleanFlags verbose) = do
let pps = allSuffixHandlers hooks
putStrLn "cleaning..."
try $ removeDirectoryRecursive (joinPaths distPref "doc")
try $ removeFile installedPkgConfigFile
try $ removeFile localBuildInfoFile
try $ removeFile regScriptLocation
try $ removeFile unregScriptLocation
removePreprocessedPackage pkg_descr currentDir (ppSuffixes pps)
mapM_ removeFileOrDirectory (extraTmpFiles pkg_descr)
when (isJust maybeLbi) $ do
let lbi = fromJust maybeLbi
try $ removeDirectoryRecursive (buildDir lbi)
case compilerFlavor (compiler lbi) of
GHC -> cleanGHCExtras lbi
JHC -> cleanJHCExtras lbi
_ -> return ()
where
cleanGHCExtras lbi = do
-- remove source stubs for library
withLib pkg_descr () $ \ Library{libBuildInfo=bi} ->
removeGHCModuleStubs bi (libModules pkg_descr)
-- remove source stubs for executables
withExe pkg_descr $ \ Executable{modulePath=exeSrcName
,buildInfo=bi} -> do
removeGHCModuleStubs bi (exeModules pkg_descr)
let (startN, _) = splitFileExt exeSrcName
try $ removeFile (startN ++ "_stub.h")
try $ removeFile (startN ++ "_stub.c")
removeGHCModuleStubs :: BuildInfo -> [String] -> IO ()
removeGHCModuleStubs (BuildInfo{hsSourceDirs=dirs}) mods = do
s <- mapM (\x -> moduleToFilePath dirs (x ++"_stub") ["h", "c"]) mods
mapM_ removeFile (concat s)
-- JHC FIXME remove exe-sources
cleanJHCExtras lbi = do
try $ removeFile (buildDir lbi `joinFileName` "jhc-pkg.conf")
removePreprocessedPackage pkg_descr currentDir ["ho"]
removeFileOrDirectory :: FilePath -> IO ()
removeFileOrDirectory fname = do
isDir <- doesDirectoryExist fname
isFile <- doesFileExist fname
if isDir then removeDirectoryRecursive fname
else if isFile then removeFile fname
else return ()
no_extra_flags :: [String] -> IO ()
no_extra_flags [] = return ()
no_extra_flags extra_flags =
die ("Unrecognised flags: " ++ concat (intersperse "," extra_flags))
buildDirOpt :: OptDescr (LocalBuildInfo -> LocalBuildInfo)
buildDirOpt = Option "b" ["scratchdir"] (reqDirArg setBuildDir)
"directory to receive the built package [dist/build]"
where setBuildDir dir lbi = lbi { buildDir = dir }
-- |Empty 'UserHooks' which do nothing.
emptyUserHooks :: UserHooks
emptyUserHooks
= UserHooks
{
runTests = res,
readDesc = return Nothing,
hookedPreProcessors = [],
hookedPrograms = [],
preConf = rn,
confHook = (\_ _ -> return (error "No local build info generated during configure. Over-ride empty configure hook.")),
postConf = res,
preBuild = rn,
buildHook = ru,
postBuild = res,
preClean = rn,
cleanHook = ru,
postClean = res,
preCopy = rn,
copyHook = ru,
postCopy = res,
preInst = rn,
instHook = ru,
postInst = res,
preSDist = rn,
sDistHook = ru,
postSDist = res,
preReg = rn,
regHook = ru,
postReg = res,
preUnreg = rn,
unregHook = ru,
postUnreg = res,
prePFE = rn,
pfeHook = ru,
postPFE = res,
preHaddock = rn,
haddockHook = ru,
postHaddock = res
}
where rn _ _ = return emptyHookedBuildInfo
res _ _ _ _ = return ExitSuccess
ru _ _ _ _ = return ()
-- |Basic default 'UserHooks':
--
-- * on non-Windows systems, 'postConf' runs @.\/configure@, if present.
--
-- * the pre-hooks 'preBuild', 'preClean', 'preCopy', 'preInst',
-- 'preReg' and 'preUnreg' read additional build information from
-- /package/@.buildinfo@, if present.
--
-- Thus @configure@ can use local system information to generate
-- /package/@.buildinfo@ and possibly other files.
-- FIXME: do something sensible for windows, or do nothing in postConf.
defaultUserHooks :: UserHooks
defaultUserHooks
= emptyUserHooks
{
postConf = defaultPostConf,
confHook = configure,
preBuild = readHook buildVerbose,
buildHook = defaultBuildHook,
preClean = readHook cleanVerbose,
preCopy = readHook copyVerbose,
copyHook = \desc lbi _ f -> install desc lbi f, -- has correct 'copy' behavior with params
preInst = readHook installVerbose,
instHook = defaultInstallHook,
sDistHook = \p _ h f -> sdist p f srcPref distPref (allSuffixHandlers h),
pfeHook = pfe,
cleanHook = clean,
haddockHook = haddock,
preReg = readHook regVerbose,
regHook = defaultRegHook,
unregHook = \p l _ f -> unregister p l f,
preUnreg = readHook regVerbose
}
where defaultPostConf :: Args -> ConfigFlags -> PackageDescription -> LocalBuildInfo -> IO ExitCode
defaultPostConf args flags pkg_descr lbi
= do let verbose = configVerbose flags
args' = configureArgs flags ++ args
confExists <- doesFileExist "configure"
if confExists then
-- FIXME: should we really be discarding the exit code?
rawSystemVerbose verbose "./configure" args'
else do
no_extra_flags args
return ExitSuccess
readHook :: (a -> Int) -> Args -> a -> IO HookedBuildInfo
readHook verbose a flags = do
no_extra_flags a
maybe_infoFile <- defaultHookedPackageDesc
case maybe_infoFile of
Nothing -> return emptyHookedBuildInfo
Just infoFile -> do
when (verbose flags > 0) $
putStrLn $ "Reading parameters from " ++ infoFile
readHookedBuildInfo infoFile
defaultInstallHook :: PackageDescription -> LocalBuildInfo
-> Maybe UserHooks ->InstallFlags -> IO ()
defaultInstallHook pkg_descr localbuildinfo _ (InstallFlags uInstFlag verbose) = do
install pkg_descr localbuildinfo (CopyFlags NoCopyDest verbose)
when (hasLibs pkg_descr) $
register pkg_descr localbuildinfo
emptyRegisterFlags{ regUser=uInstFlag, regVerbose=verbose }
defaultBuildHook :: PackageDescription -> LocalBuildInfo
-> Maybe UserHooks -> BuildFlags -> IO ()
defaultBuildHook pkg_descr localbuildinfo hooks flags = do
build pkg_descr localbuildinfo flags (allSuffixHandlers hooks)
when (hasLibs pkg_descr) $
writeInstalledConfig pkg_descr localbuildinfo False
defaultRegHook :: PackageDescription -> LocalBuildInfo
-> Maybe UserHooks -> RegisterFlags -> IO ()
defaultRegHook pkg_descr localbuildinfo _ flags =
if hasLibs pkg_descr
then register pkg_descr localbuildinfo flags
else die "Package contains no library to register"
-- ------------------------------------------------------------
-- * Testing
-- ------------------------------------------------------------
|