\begin{code}
module Packages (
- PackageConfig(..),
+ PackageConfig,
+ InstalledPackageInfo(..),
+ Version(..),
+ PackageIdentifier(..),
defaultPackageConfig,
- mungePackagePaths, packageDependents,
+ packageDependents,
showPackages,
PackageName, -- Instance of Outputable
- mkPackageName, packageNameString,
- preludePackage, rtsPackage, stdPackage, haskell98Package, -- :: PackageName
+ mkPackageName, packageIdName, packageConfigName, packageNameString,
+ basePackage, rtsPackage, haskell98Package, thPackage, -- :: PackageName
- PackageConfigMap, emptyPkgMap, extendPkgMap, lookupPkg
+ PackageConfigMap, emptyPkgMap, lookupPkg,
+ extendPackageConfigMap, getPackageDetails, getPackageConfigMap,
)
where
#include "HsVersions.h"
-import Pretty
-
+import Distribution.InstalledPackageInfo
+import Distribution.Package
+import Data.Version
import CmdLineOpts ( dynFlag, verbosity )
-import DriverUtil ( my_prefix_match )
import ErrUtils ( dumpIfSet )
import Outputable ( docToSDoc )
import FastString
import UniqFM
-\end{code}
+import Util
+import Pretty
-%*********************************************************
-%* *
-\subsection{Basic data types}
-%* *
-%*********************************************************
+import DATA_IOREF
-\begin{code}
-#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)
--- PackageName (FastString)
-
-#include "../utils/ghc-pkg/Package.hs"
-\end{code}
+-- -----------------------------------------------------------------------------
+-- 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.
+
+type PackageConfig = InstalledPackageInfo
+defaultPackageConfig = emptyInstalledPackageInfo
+
+-- -----------------------------------------------------------------------------
+-- Package names
-\begin{code}
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
-rtsPackage, preludePackage, haskell98Package :: PackageName
-preludePackage = FSLIT("base")
+rtsPackage, basePackage, haskell98Package, thPackage :: PackageName
+basePackage = FSLIT("base")
rtsPackage = FSLIT("rts")
haskell98Package = FSLIT("haskell98")
+thPackage = FSLIT("template-haskell") -- Template Haskell libraries in here
packageDependents :: PackageConfig -> [PackageName]
-- Impedence matcher, because PackageConfig has Strings
-- not PackageNames at the moment. Sigh.
-packageDependents pkg = map mkPackageName (package_deps pkg)
-\end{code}
+packageDependents pkg = map packageIdName (depends pkg)
-A PackageConfigMap maps a PackageName to a PackageConfig
+-- -----------------------------------------------------------------------------
+-- A PackageConfigMap maps a PackageName to a PackageConfig
-\begin{code}
type PackageConfigMap = UniqFM PackageConfig
lookupPkg :: PackageConfigMap -> PackageName -> Maybe PackageConfig
+
emptyPkgMap :: PackageConfigMap
emptyPkgMap = emptyUFM
extendPkgMap pkg_map new_pkgs
= foldl add pkg_map new_pkgs
where
- add pkg_map p = addToUFM pkg_map (mkFastString (name p)) p
-\end{code}
+ add pkg_map p = addToUFM pkg_map (packageConfigName p) p
-%*********************************************************
-%* *
-\subsection{Load the config file}
-%* *
-%*********************************************************
+GLOBAL_VAR(v_Package_details, emptyPkgMap, PackageConfigMap)
-\begin{code}
-mungePackagePaths :: String -> [PackageConfig] -> [PackageConfig]
--- Replace the string "$libdir" at the beginning of a path
--- with the current libdir (obtained from the -B option).
-mungePackagePaths top_dir ps = map munge_pkg ps
- where
- munge_pkg p = p{ import_dirs = munge_paths (import_dirs p),
- include_dirs = munge_paths (include_dirs p),
- library_dirs = munge_paths (library_dirs p),
- framework_dirs = munge_paths (framework_dirs p) }
-
- munge_paths = map munge_path
-
- munge_path p
- | Just p' <- my_prefix_match "$libdir" p = top_dir ++ p'
- | otherwise = p
-\end{code}
+getPackageConfigMap :: IO PackageConfigMap
+getPackageConfigMap = readIORef v_Package_details
+extendPackageConfigMap :: [PackageConfig] -> IO ()
+extendPackageConfigMap pkg_configs = do
+ old_pkg_map <- readIORef v_Package_details
+ writeIORef v_Package_details (extendPkgMap old_pkg_map pkg_configs)
-%*********************************************************
-%* *
-\subsection{Display results}
-%* *
-%*********************************************************
+getPackageDetails :: [PackageName] -> IO [PackageConfig]
+getPackageDetails ps = do
+ pkg_details <- getPackageConfigMap
+ return [ pkg | Just pkg <- map (lookupPkg pkg_details) ps ]
+
+
+-- -----------------------------------------------------------------------------
+-- Displaying packages
-\begin{code}
showPackages :: PackageConfigMap -> IO ()
-- Show package info on console, if verbosity is >= 3
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
+
\end{code}
projects / ghc-hetmet.git / blobdiff