libraries/installPackage.hs

   1
   2 import Distribution.PackageDescription
   3 import Distribution.Simple
   4 import Distribution.Simple.Configure
   5 import Distribution.Simple.LocalBuildInfo
   6 import Distribution.Simple.Program
   7 import Distribution.Simple.Setup
   8 import Distribution.Simple.Utils
   9 import Distribution.Verbosity
  10 import System.Environment
  11
  12 main :: IO ()
  13 main
  14   = do args <- getArgs
  15        case args of
  16            destdir : pref : idatadir : idocdir : ihtmldir : ghcpkg : ghcpkgconf : args' ->
  17                let verbosity = case args' of
  18                            [] -> normal
  19                            ['-':'v':v] ->
  20                                let m = case v of
  21                                            "" -> Nothing
  22                                            _ -> Just v
  23                                in flagToVerbosity m
  24                            _ -> error ("Bad arguments: " ++ show args)
  25                in doit destdir pref idatadir idocdir ihtmldir ghcpkg ghcpkgconf
  26                        verbosity
  27            _ ->
  28                error "Missing arguments"
  29
  30 doit :: FilePath -> FilePath -> FilePath -> FilePath -> FilePath -> FilePath -> FilePath
  31      -> Verbosity
  32      -> IO ()
  33 doit destdir pref idatadir idocdir ihtmldir ghcpkg ghcpkgconf verbosity =
  34        do let userHooks = simpleUserHooks
  35               copyto = if null destdir then NoCopyDest else CopyTo destdir
  36               copyFlags = (emptyCopyFlags copyto) {
  37                               copyVerbose = verbosity
  38                           }
  39               registerFlags = emptyRegisterFlags {
  40                                   regPackageDB = Just GlobalPackageDB,
  41                                   regVerbose = verbosity,
  42                                   regGenScript = False,
  43                                   regInPlace = False
  44                               }
  45           lbi <- getConfig verbosity
  46           let pd = localPkgDescr lbi
  47               i = installDirTemplates lbi
  48               -- XXX This is an almighty hack, shadowing the base
  49               -- Setup.hs hack
  50               mkLib filt = case library pd of
  51                            Just lib ->
  52                                let ems = filter filt $ exposedModules lib
  53                                in lib {
  54                                       exposedModules = ems
  55                                    }
  56                            Nothing ->
  57                                error "Expected a library, but none found"
  58               -- There's no files for GHC.Prim, so we will fail if we
  59               -- try to copy them
  60               pd_copy = pd { library = Just (mkLib ("GHC.Prim" /=)) }
  61               pd_reg  = pd { library = Just (mkLib (const True)) }
  62               -- When coying, we need to actually give a concrete
  63               -- directory to copy to rather than "$topdir"
  64               i_copy = i { prefixDirTemplate = toPathTemplate pref,
  65                            dataDirTemplate   = toPathTemplate idatadir,
  66                            docDirTemplate    = toPathTemplate idocdir,
  67                            htmlDirTemplate   = toPathTemplate ihtmldir
  68                          }
  69               lbi_copy = lbi { installDirTemplates = i_copy }
  70               -- When we run GHC we give it a $topdir that includes the
  71               -- $compiler/lib/ part of libsubdir, so we only want the
  72               -- $pkgid part in the package.conf file. This is a bit of
  73               -- a hack, really.
  74               progs = withPrograms lbi
  75               prog = ConfiguredProgram {
  76                          programId = programName ghcPkgProgram,
  77                          programVersion = Nothing,
  78                          programArgs = ["--global-conf", ghcpkgconf],
  79                          programLocation = UserSpecified ghcpkg
  80                      }
  81               progs' = updateProgram prog progs
  82               i_reg = i { libSubdirTemplate = toPathTemplate "$pkgid" }
  83               lbi_reg = lbi { installDirTemplates = i_reg,
  84                               withPrograms = progs' }
  85           (copyHook simpleUserHooks) pd_copy lbi_copy userHooks copyFlags
  86           (regHook simpleUserHooks)  pd_reg  lbi_reg  userHooks registerFlags
  87           return ()
  88
  89 -- Get the build info, merging the setup-config and buildinfo files.
  90 getConfig :: Verbosity -> IO LocalBuildInfo
  91 getConfig verbosity = do
  92     lbi <- getPersistBuildConfig
  93     maybe_infoFile <- defaultHookedPackageDesc
  94     case maybe_infoFile of
  95         Nothing -> return lbi
  96         Just infoFile -> do
  97             hbi <- readHookedBuildInfo verbosity infoFile
  98             return lbi { localPkgDescr = updatePackageDescription hbi (localPkgDescr lbi)}
  99
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