libraries/installPackage.hs

   1
   2 import Data.Maybe
   3 import Distribution.PackageDescription
   4 import Distribution.PackageDescription.Parse
   5 import Distribution.ReadE
   6 import Distribution.Simple
   7 import Distribution.Simple.Configure
   8 import Distribution.Simple.LocalBuildInfo
   9 import Distribution.Simple.Program
  10 import Distribution.Simple.Setup
  11 import Distribution.Simple.Utils
  12 import Distribution.Text
  13 import Distribution.Verbosity
  14 import System.Environment
  15
  16 -- XXX This will need to be changed
  17 distPref :: FilePath
  18 distPref = defaultDistPref
  19
  20 main :: IO ()
  21 main
  22   = do args <- getArgs
  23        case args of
  24            "install" : ghcpkg : ghcpkgconf : destdir : topdir :
  25                     iprefix : ibindir : ilibdir : ilibexecdir : idynlibdir :
  26                     idatadir : idocdir : ihtmldir : ihaddockdir :
  27                     args' ->
  28                let verbosity = mkVerbosity args'
  29                in doInstall verbosity ghcpkg ghcpkgconf destdir topdir
  30                             iprefix ibindir ilibdir ilibexecdir idynlibdir idatadir
  31                             idocdir ihtmldir ihaddockdir
  32            _ ->
  33                error ("Bad arguments: " ++ show args)
  34
  35 mkVerbosity :: [String] -> Verbosity
  36 mkVerbosity [] = normal
  37 mkVerbosity ['-':'v':v] = readEOrFail flagToVerbosity v
  38 mkVerbosity args = error ("Bad arguments: " ++ show args)
  39
  40 doInstall :: Verbosity -> FilePath -> FilePath -> FilePath -> FilePath
  41           -> FilePath -> FilePath -> FilePath -> FilePath -> FilePath
  42           -> FilePath -> FilePath -> FilePath -> FilePath
  43           -> IO ()
  44 doInstall verbosity ghcpkg ghcpkgconf destdir topdir
  45      iprefix ibindir ilibdir ilibexecdir idynlibdir idatadir
  46      idocdir ihtmldir ihaddockdir =
  47        do let userHooks = simpleUserHooks
  48               copyto = if null destdir then NoCopyDest else CopyTo destdir
  49               copyFlags = defaultCopyFlags {
  50                               copyDest = toFlag copyto,
  51                               copyVerbosity = toFlag verbosity
  52                           }
  53               registerFlags = defaultRegisterFlags {
  54                                   regPackageDB = toFlag GlobalPackageDB,
  55                                   regVerbosity = toFlag verbosity,
  56                                   regGenScript = toFlag $ False,
  57                                   regInPlace = toFlag $ False
  58                               }
  59           lbi <- getConfig verbosity
  60           let pd = localPkgDescr lbi
  61               i = installDirTemplates lbi
  62               -- This is an almighty hack. We need to register
  63               -- ghc-prim:GHC.Prim, but it doesn't exist, get built, get
  64               -- haddocked, get copied, etc.
  65               pd_reg = if packageName pd == PackageName "ghc-prim"
  66                        then case library pd of
  67                             Just lib ->
  68                                 let ems = fromJust (simpleParse "GHC.Prim")
  69                                         : exposedModules lib
  70                                     lib' = lib { exposedModules = ems }
  71                                 in pd { library = Just lib' }
  72                             Nothing ->
  73                                 error "Expected a library, but none found"
  74                        else pd
  75               -- When coying, we need to actually give a concrete
  76               -- directory to copy to rather than "$topdir"
  77               toPathTemplate' = toPathTemplate . replaceTopdir topdir
  78               i_copy = i { prefix       = toPathTemplate' iprefix,
  79                            bindir       = toPathTemplate' ibindir,
  80                            libdir       = toPathTemplate' ilibdir,
  81                            dynlibdir    = toPathTemplate' idynlibdir,
  82                            libexecdir   = toPathTemplate' ilibexecdir,
  83                            datadir      = toPathTemplate' idatadir,
  84                            docdir       = toPathTemplate' idocdir,
  85                            htmldir      = toPathTemplate' ihtmldir,
  86                            haddockdir   = toPathTemplate' ihaddockdir
  87                          }
  88               lbi_copy = lbi { installDirTemplates = i_copy }
  89               -- When we run GHC we give it a $topdir that includes the
  90               -- $compiler/lib/ part of libsubdir, so we only want the
  91               -- $pkgid part in the package.conf file. This is a bit of
  92               -- a hack, really.
  93               progs = withPrograms lbi
  94               prog = ConfiguredProgram {
  95                          programId = programName ghcPkgProgram,
  96                          programVersion = Nothing,
  97                          programArgs = ["--force", "--global-conf", ghcpkgconf],
  98                          programLocation = UserSpecified ghcpkg
  99                      }
 100               progs' = updateProgram prog progs
 101               i_reg = i { prefix       = toPathTemplate iprefix,
 102                           bindir       = toPathTemplate ibindir,
 103                           libdir       = toPathTemplate ilibdir,
 104                           dynlibdir    = toPathTemplate idynlibdir,
 105                           libexecdir   = toPathTemplate ilibexecdir,
 106                           datadir      = toPathTemplate idatadir,
 107                           docdir       = toPathTemplate idocdir,
 108                           htmldir      = toPathTemplate ihtmldir,
 109                           haddockdir   = toPathTemplate ihaddockdir
 110                         }
 111               lbi_reg = lbi { installDirTemplates = i_reg,
 112                               withPrograms = progs' }
 113           (copyHook simpleUserHooks) pd     lbi_copy userHooks copyFlags
 114           (regHook simpleUserHooks)  pd_reg lbi_reg  userHooks registerFlags
 115           return ()
 116
 117 replaceTopdir :: FilePath -> FilePath -> FilePath
 118 replaceTopdir topdir ('$':'t':'o':'p':'d':'i':'r':p) = topdir ++ p
 119 replaceTopdir topdir ('$':'h':'t':'t':'p':'t':'o':'p':'d':'i':'r':p)
 120     = topdir ++ p
 121 replaceTopdir _ p = p
 122
 123 -- Get the build info, merging the setup-config and buildinfo files.
 124 getConfig :: Verbosity -> IO LocalBuildInfo
 125 getConfig verbosity = do
 126     lbi <- getPersistBuildConfig distPref
 127     maybe_infoFile <- defaultHookedPackageDesc
 128     case maybe_infoFile of
 129         Nothing -> return lbi
 130         Just infoFile -> do
 131             hbi <- readHookedBuildInfo verbosity infoFile
 132             return lbi { localPkgDescr = updatePackageDescription hbi (localPkgDescr lbi)}
 133
 134