content: -----------------------------------------------------------------------------
  -- |
  -- Module      :  Distribution.Simple.GHC.IPI642
  -- Copyright   :  (c) The University of Glasgow 2004
  --
  -- Maintainer  :  cabal-devel@haskell.org
  -- Portability :  portable
  --
  
  {- 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 the University 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.GHC.IPI642 (
      InstalledPackageInfo,
      toCurrent,
  
      -- Don't use these, they're only for conversion purposes
      PackageIdentifier, convertPackageId,
      License, convertLicense,
      convertModuleName
    ) where
  
  import qualified Distribution.InstalledPackageInfo as Current
  import qualified Distribution.Package as Current hiding (depends)
  import qualified Distribution.License as Current
  
  import Distribution.Version (Version)
  import Distribution.ModuleName (ModuleName)
  import Distribution.Text (simpleParse,display)
  
  import Data.Maybe
  
  -- | This is the InstalledPackageInfo type used by ghc-6.4.2 and later.
  --
  -- It's here purely for the 'Read' instance so that we can read the package
  -- database used by those ghc versions. It is a little hacky to read the
  -- package db directly, but we do need the info and until ghc-6.9 there was
  -- no better method.
  --
  -- In ghc-6.4.1 and before the format was slightly different.
  -- See "Distribution.Simple.GHC.IPI642"
  --
  data InstalledPackageInfo = InstalledPackageInfo {
      package           :: PackageIdentifier,
      license           :: License,
      copyright         :: String,
      maintainer        :: String,
      author            :: String,
      stability         :: String,
      homepage          :: String,
      pkgUrl            :: String,
      description       :: String,
      category          :: String,
      exposed           :: Bool,
      exposedModules    :: [String],
      hiddenModules     :: [String],
      importDirs        :: [FilePath],
      libraryDirs       :: [FilePath],
      hsLibraries       :: [String],
      extraLibraries    :: [String],
      extraGHCiLibraries:: [String],
      includeDirs       :: [FilePath],
      includes          :: [String],
      depends           :: [PackageIdentifier],
      hugsOptions       :: [String],
      ccOptions         :: [String],
      ldOptions         :: [String],
      frameworkDirs     :: [FilePath],
      frameworks        :: [String],
      haddockInterfaces :: [FilePath],
      haddockHTMLs      :: [FilePath]
    }
    deriving Read
  
  data PackageIdentifier = PackageIdentifier {
      pkgName    :: String,
      pkgVersion :: Version
    }
    deriving Read
  
  data License = GPL | LGPL | BSD3 | BSD4
               | PublicDomain | AllRightsReserved | OtherLicense
    deriving Read
  
  convertPackageId :: PackageIdentifier -> Current.PackageIdentifier
  convertPackageId PackageIdentifier { pkgName = n, pkgVersion = v } =
    Current.PackageIdentifier (Current.PackageName n) v
  
  mkInstalledPackageId :: Current.PackageIdentifier -> Current.InstalledPackageId
  mkInstalledPackageId = Current.InstalledPackageId . display
  
  convertModuleName :: String -> ModuleName
  convertModuleName s = fromJust $ simpleParse s
  
  convertLicense :: License -> Current.License
  convertLicense GPL  = Current.GPL  Nothing
  convertLicense LGPL = Current.LGPL Nothing
  convertLicense BSD3 = Current.BSD3
  convertLicense BSD4 = Current.BSD4
  convertLicense PublicDomain = Current.PublicDomain
  convertLicense AllRightsReserved = Current.AllRightsReserved
  convertLicense OtherLicense = Current.OtherLicense
  
  toCurrent :: InstalledPackageInfo -> Current.InstalledPackageInfo
  toCurrent ipi@InstalledPackageInfo{} = Current.InstalledPackageInfo {
      Current.installedPackageId = mkInstalledPackageId (convertPackageId (package ipi)),
      Current.sourcePackageId    = convertPackageId (package ipi),
      Current.license            = convertLicense (license ipi),
      Current.copyright          = copyright ipi,
      Current.maintainer         = maintainer ipi,
      Current.author             = author ipi,
      Current.stability          = stability ipi,
      Current.homepage           = homepage ipi,
      Current.pkgUrl             = pkgUrl ipi,
      Current.synopsis           = "",
      Current.description        = description ipi,
      Current.category           = category ipi,
      Current.exposed            = exposed ipi,
      Current.exposedModules     = map convertModuleName (exposedModules ipi),
      Current.hiddenModules      = map convertModuleName (hiddenModules ipi),
      Current.trusted            = Current.trusted Current.emptyInstalledPackageInfo,
      Current.importDirs         = importDirs ipi,
      Current.libraryDirs        = libraryDirs ipi,
      Current.hsLibraries        = hsLibraries ipi,
      Current.extraLibraries     = extraLibraries ipi,
      Current.extraGHCiLibraries = extraGHCiLibraries ipi,
      Current.includeDirs        = includeDirs ipi,
      Current.includes           = includes ipi,
      Current.depends            = map (mkInstalledPackageId.convertPackageId) (depends ipi),
      Current.hugsOptions        = hugsOptions ipi,
      Current.ccOptions          = ccOptions ipi,
      Current.ldOptions          = ldOptions ipi,
      Current.frameworkDirs      = frameworkDirs ipi,
      Current.frameworks         = frameworks ipi,
      Current.haddockInterfaces  = haddockInterfaces ipi,
      Current.haddockHTMLs       = haddockHTMLs ipi
    }
  