[project @ 2004-11-11 16:07:40 by simonmar]

[ghc-hetmet.git] / ghc / compiler / main / Packages.lhs

diff --git a/ghc/compiler/main/Packages.lhs b/ghc/compiler/main/Packages.lhs
index 72b3cf8..43cd04d 100644 (file)
--- a/ghc/compiler/main/Packages.lhs
+++ b/ghc/compiler/main/Packages.lhs
@@ -5,13 +5,16 @@
 
 \begin{code}
 module Packages (
-       PackageConfig(..), 
+       PackageConfig,
+       InstalledPackageInfo(..),
+       Version(..),
+       PackageIdentifier(..),
        defaultPackageConfig,
        packageDependents, 
        showPackages,
 
        PackageName,            -- Instance of Outputable
-       mkPackageName, packageNameString,
+       mkPackageName, packageIdName, packageConfigName, packageNameString,
        basePackage, rtsPackage, haskell98Package, thPackage, -- :: PackageName
 
        PackageConfigMap, emptyPkgMap, lookupPkg,
@@ -21,6 +24,9 @@ where
 
 #include "HsVersions.h"
 
+import Distribution.InstalledPackageInfo
+import Distribution.Package
+import Data.Version
 import CmdLineOpts     ( dynFlag, verbosity )
 import ErrUtils                ( dumpIfSet )
 import Outputable      ( docToSDoc )
@@ -32,18 +38,11 @@ import Pretty
 import DATA_IOREF
 
 -- -----------------------------------------------------------------------------
--- The PackageConfig type
+-- Our PackageConfig type is just InstalledPackageInfo from Cabal.  Later we
+-- might need to extend it with some GHC-specific stuff, but for now it's fine.
 
-#define WANT_PRETTY
-#define INTERNAL_PRETTY
--- Yes, do generate pretty-printing stuff for packages, and use our
--- own Pretty library rather than Text.PrettyPrint
-
--- There's a blob of code shared with ghc-pkg, 
--- so we just include it from there 
--- Primarily it defines        PackageConfig (a record)
-
-#include "../utils/ghc-pkg/Package.hs"
+type PackageConfig = InstalledPackageInfo
+defaultPackageConfig = emptyInstalledPackageInfo
 
 -- -----------------------------------------------------------------------------
 -- Package names
@@ -53,6 +52,12 @@ type PackageName = FastString        -- No encoding at all
 mkPackageName :: String -> PackageName
 mkPackageName = mkFastString
 
+packageIdName :: PackageIdentifier -> PackageName
+packageIdName = mkPackageName . showPackageId
+
+packageConfigName :: PackageConfig -> PackageName
+packageConfigName = packageIdName . package
+
 packageNameString :: PackageName -> String
 packageNameString = unpackFS
 
@@ -65,7 +70,7 @@ thPackage        = FSLIT("template-haskell")  -- Template Haskell libraries in he
 packageDependents :: PackageConfig -> [PackageName]
 -- Impedence matcher, because PackageConfig has Strings 
 -- not PackageNames at the moment.  Sigh.
-packageDependents pkg = map mkPackageName (package_deps pkg)
+packageDependents pkg = map packageIdName (depends pkg)
 
 -- -----------------------------------------------------------------------------
 -- A PackageConfigMap maps a PackageName to a PackageConfig
@@ -83,7 +88,7 @@ extendPkgMap :: PackageConfigMap -> [PackageConfig] -> PackageConfigMap
 extendPkgMap pkg_map new_pkgs 
   = foldl add pkg_map new_pkgs
   where
-    add pkg_map p = addToUFM pkg_map (mkFastString (name p)) p
+    add pkg_map p = addToUFM pkg_map (packageConfigName p) p
 
 GLOBAL_VAR(v_Package_details, emptyPkgMap, PackageConfigMap)
 
@@ -109,7 +114,7 @@ showPackages :: PackageConfigMap -> IO ()
 showPackages pkg_map
   = do  { verb <- dynFlag verbosity
        ; dumpIfSet (verb >= 3) "Packages"
-                   (docToSDoc (vcat (map dumpPkgGuts ps)))
+                   (docToSDoc (vcat (map (text.showInstalledPackageInfo) ps)))
        }
   where
     ps = eltsUFM pkg_map