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 : ibindir : ilibdir : ilibexecdir
  17                    : idatadir : idocdir : ihtmldir
  18                    : ghcpkg : ghcpkgconf : args' ->
  19                let verbosity = case args' of
  20                            [] -> normal
  21                            ['-':'v':v] ->
  22                                let m = case v of
  23                                            "" -> Nothing
  24                                            _ -> Just v
  25                                in flagToVerbosity m
  26                            _ -> error ("Bad arguments: " ++ show args)
  27                in doit destdir pref ibindir ilibdir ilibexecdir idatadir
  28                        idocdir ihtmldir
  29                        ghcpkg ghcpkgconf verbosity
  30            _ ->
  31                error "Missing arguments"
  32
  33 doit :: FilePath -> FilePath -> FilePath -> FilePath -> FilePath
  34      -> FilePath -> FilePath -> FilePath -> FilePath -> FilePath
  35      -> Verbosity
  36      -> IO ()
  37 doit destdir pref ibindir ilibdir ilibexecdir idatadir idocdir
  38      ihtmldir ghcpkg ghcpkgconf verbosity =
  39        do let userHooks = simpleUserHooks
  40               copyto = if null destdir then NoCopyDest else CopyTo destdir
  41               copyFlags = (emptyCopyFlags copyto) {
  42                               copyVerbose = verbosity
  43                           }
  44               registerFlags = emptyRegisterFlags {
  45                                   regPackageDB = Just GlobalPackageDB,
  46                                   regVerbose = verbosity,
  47                                   regGenScript = False,
  48                                   regInPlace = False
  49                               }
  50           lbi <- getConfig verbosity
  51           let pd = localPkgDescr lbi
  52               i = installDirTemplates lbi
  53               -- XXX This is an almighty hack, shadowing the base
  54               -- Setup.hs hack
  55               mkLib filt = case library pd of
  56                            Just lib ->
  57                                let ems = filter filt $ exposedModules lib
  58                                in lib {
  59                                       exposedModules = ems
  60                                    }
  61                            Nothing ->
  62                                error "Expected a library, but none found"
  63               -- There's no files for GHC.Prim, so we will fail if we
  64               -- try to copy them
  65               pd_copy = pd { library = Just (mkLib ("GHC.Prim" /=)) }
  66               pd_reg  = pd { library = Just (mkLib (const True)) }
  67               -- When coying, we need to actually give a concrete
  68               -- directory to copy to rather than "$topdir"
  69               i_copy = i { prefixDirTemplate  = toPathTemplate pref,
  70                            binDirTemplate     = toPathTemplate ibindir,
  71                            libDirTemplate     = toPathTemplate ilibdir,
  72                            libexecDirTemplate = toPathTemplate ilibexecdir,
  73                            dataDirTemplate    = toPathTemplate idatadir,
  74                            docDirTemplate     = toPathTemplate idocdir,
  75                            htmlDirTemplate    = toPathTemplate ihtmldir
  76                          }
  77               lbi_copy = lbi { installDirTemplates = i_copy }
  78               -- When we run GHC we give it a $topdir that includes the
  79               -- $compiler/lib/ part of libsubdir, so we only want the
  80               -- $pkgid part in the package.conf file. This is a bit of
  81               -- a hack, really.
  82               progs = withPrograms lbi
  83               prog = ConfiguredProgram {
  84                          programId = programName ghcPkgProgram,
  85                          programVersion = Nothing,
  86                          programArgs = ["--global-conf", ghcpkgconf],
  87                          programLocation = UserSpecified ghcpkg
  88                      }
  89               progs' = updateProgram prog progs
  90               i_reg = i { libSubdirTemplate = toPathTemplate "$pkgid" }
  91               lbi_reg = lbi { installDirTemplates = i_reg,
  92                               withPrograms = progs' }
  93           (copyHook simpleUserHooks) pd_copy lbi_copy userHooks copyFlags
  94           (regHook simpleUserHooks)  pd_reg  lbi_reg  userHooks registerFlags
  95           return ()
  96
  97 -- Get the build info, merging the setup-config and buildinfo files.
  98 getConfig :: Verbosity -> IO LocalBuildInfo
  99 getConfig verbosity = do
 100     lbi <- getPersistBuildConfig
 101     maybe_infoFile <- defaultHookedPackageDesc
 102     case maybe_infoFile of
 103         Nothing -> return lbi
 104         Just infoFile -> do
 105             hbi <- readHookedBuildInfo verbosity infoFile
 106             return lbi { localPkgDescr = updatePackageDescription hbi (localPkgDescr lbi)}
 107
 108