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import Distribution.PackageDescription
import Distribution.Simple
import Distribution.Simple.Configure
import Distribution.Simple.LocalBuildInfo
import Distribution.Simple.Program
import Distribution.Simple.Setup
import Distribution.Simple.Utils
import Distribution.Verbosity
import System.Environment
main :: IO ()
main
= do args <- getArgs
case args of
destdir : ipref : ibindir : ilibdir : ilibexecdir
: idatadir : idocdir : ihtmldir_copy : ihtmldir_reg
: ghcpkg : ghcpkgconf : args' ->
let verbosity = case args' of
[] -> normal
['-':'v':v] ->
let m = case v of
"" -> Nothing
_ -> Just v
in flagToVerbosity m
_ -> error ("Bad arguments: " ++ show args)
in doit destdir ipref ibindir ilibdir
ilibexecdir idatadir idocdir
ihtmldir_copy ihtmldir_reg
ghcpkg ghcpkgconf verbosity
_ ->
error "Missing arguments"
doit :: FilePath -> FilePath -> FilePath -> FilePath -> FilePath
-> FilePath -> FilePath -> FilePath -> FilePath -> FilePath
-> FilePath
-> Verbosity
-> IO ()
doit destdir ipref ibindir ilibdir ilibexecdir idatadir idocdir
ihtmldir_copy ihtmldir_reg ghcpkg ghcpkgconf verbosity =
do let userHooks = simpleUserHooks
copyto = if null destdir then NoCopyDest else CopyTo destdir
copyFlags = (emptyCopyFlags copyto) {
copyVerbose = verbosity
}
registerFlags = emptyRegisterFlags {
regPackageDB = Just GlobalPackageDB,
regVerbose = verbosity,
regGenScript = False,
regInPlace = False
}
lbi <- getConfig verbosity
let pd = localPkgDescr lbi
i = installDirTemplates lbi
-- XXX This is an almighty hack, shadowing the base
-- Setup.hs hack
mkLib filt = case library pd of
Just lib ->
let ems = filter filt $ exposedModules lib
in lib {
exposedModules = ems
}
Nothing ->
error "Expected a library, but none found"
-- There's no files for GHC.Prim, so we will fail if we
-- try to copy them
pd_copy = pd { library = Just (mkLib ("GHC.Prim" /=)) }
pd_reg = pd { library = Just (mkLib (const True)) }
-- When coying, we need to actually give a concrete
-- directory to copy to rather than "$topdir"
i_copy = i { prefixDirTemplate = toPathTemplate ipref,
binDirTemplate = toPathTemplate ibindir,
libDirTemplate = toPathTemplate ilibdir,
libexecDirTemplate = toPathTemplate ilibexecdir,
dataDirTemplate = toPathTemplate idatadir,
docDirTemplate = toPathTemplate idocdir,
htmlDirTemplate = toPathTemplate ihtmldir_copy
}
lbi_copy = lbi { installDirTemplates = i_copy }
-- When we run GHC we give it a $topdir that includes the
-- $compiler/lib/ part of libsubdir, so we only want the
-- $pkgid part in the package.conf file. This is a bit of
-- a hack, really.
progs = withPrograms lbi
prog = ConfiguredProgram {
programId = programName ghcPkgProgram,
programVersion = Nothing,
programArgs = ["--global-conf", ghcpkgconf],
programLocation = UserSpecified ghcpkg
}
progs' = updateProgram prog progs
i_reg = i { prefixDirTemplate = toPathTemplate ipref,
binDirTemplate = toPathTemplate ibindir,
libDirTemplate = toPathTemplate ilibdir,
libexecDirTemplate = toPathTemplate ilibexecdir,
dataDirTemplate = toPathTemplate idatadir,
docDirTemplate = toPathTemplate idocdir,
htmlDirTemplate = toPathTemplate ihtmldir_reg
}
lbi_reg = lbi { installDirTemplates = i_reg,
withPrograms = progs' }
(copyHook simpleUserHooks) pd_copy lbi_copy userHooks copyFlags
(regHook simpleUserHooks) pd_reg lbi_reg userHooks registerFlags
return ()
-- Get the build info, merging the setup-config and buildinfo files.
getConfig :: Verbosity -> IO LocalBuildInfo
getConfig verbosity = do
lbi <- getPersistBuildConfig
maybe_infoFile <- defaultHookedPackageDesc
case maybe_infoFile of
Nothing -> return lbi
Just infoFile -> do
hbi <- readHookedBuildInfo verbosity infoFile
return lbi { localPkgDescr = updatePackageDescription hbi (localPkgDescr lbi)}
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