- %
-% (c) The University of Glasgow, 2006
%
-% Package manipulation
+% (c) The University of Glasgow, 2006
%
\begin{code}
+-- | Package manipulation
module Packages (
module PackageConfig,
getPackageFrameworks,
getPreloadPackagesAnd,
+ collectIncludeDirs, collectLibraryPaths, collectLinkOpts,
+ packageHsLibs,
+
-- * Utils
isDllName
)
import System.Environment ( getEnv )
import Distribution.InstalledPackageInfo hiding (depends)
-import Distribution.Package hiding (depends)
-import Distribution.Version
+import Distribution.Package hiding (depends, PackageId)
import FastString
import ErrUtils ( debugTraceMsg, putMsg, Message )
+import Exception
import System.Directory
import System.FilePath
import Data.Maybe
import Control.Monad
import Data.List
-import Control.Exception ( throwDyn )
-- ---------------------------------------------------------------------------
-- The Package state
--- Package state is all stored in DynFlags, including the details of
+-- | Package state is all stored in 'DynFlag's, including the details of
-- all packages, which packages are exposed, and which modules they
-- provide.
-
--- The package state is computed by initPackages, and kept in DynFlags.
--
--- * -package <pkg> causes <pkg> to become exposed, and all other packages
+-- The package state is computed by 'initPackages', and kept in DynFlags.
+--
+-- * @-package <pkg>@ causes @<pkg>@ to become exposed, and all other packages
-- with the same name to become hidden.
--
--- * -hide-package <pkg> causes <pkg> to become hidden.
+-- * @-hide-package <pkg>@ causes @<pkg>@ to become hidden.
--
--- * Let exposedPackages be the set of packages thus exposed.
--- Let depExposedPackages be the transitive closure from exposedPackages of
+-- * Let @exposedPackages@ be the set of packages thus exposed.
+-- Let @depExposedPackages@ be the transitive closure from @exposedPackages@ of
-- their dependencies.
--
-- * When searching for a module from an preload import declaration,
--- only the exposed modules in exposedPackages are valid.
+-- only the exposed modules in @exposedPackages@ are valid.
--
-- * When searching for a module from an implicit import, all modules
--- from depExposedPackages are valid.
+-- from @depExposedPackages@ are valid.
--
--- * When linking in a comp manager mode, we link in packages the
+-- * When linking in a compilation manager mode, we link in packages the
-- program depends on (the compiler knows this list by the
-- time it gets to the link step). Also, we link in all packages
--- which were mentioned with preload -package flags on the command-line,
--- or are a transitive dependency of same, or are "base"/"rts".
--- The reason for (b) is that we might need packages which don't
+-- which were mentioned with preload @-package@ flags on the command-line,
+-- or are a transitive dependency of same, or are \"base\"\/\"rts\".
+-- The reason for this is that we might need packages which don't
-- contain any Haskell modules, and therefore won't be discovered
-- by the normal mechanism of dependency tracking.
-- exposed is True if the package exposes that module.
}
--- A PackageConfigMap maps a PackageId to a PackageConfig
+-- | A PackageConfigMap maps a 'PackageId' to a 'PackageConfig'
type PackageConfigMap = UniqFM PackageConfig
emptyPackageConfigMap :: PackageConfigMap
emptyPackageConfigMap = emptyUFM
+-- | Find the package we know about with the given id (e.g. \"foo-1.0\"), if any
lookupPackage :: PackageConfigMap -> PackageId -> Maybe PackageConfig
lookupPackage = lookupUFM
= foldl add pkg_map new_pkgs
where add pkg_map p = addToUFM pkg_map (packageConfigId p) p
+-- | Looks up the package with the given id in the package state, panicing if it is
+-- not found
getPackageDetails :: PackageState -> PackageId -> PackageConfig
-getPackageDetails dflags ps = expectJust "getPackageDetails" (lookupPackage (pkgIdMap dflags) ps)
+getPackageDetails ps pid = expectJust "getPackageDetails" (lookupPackage (pkgIdMap ps) pid)
-- ----------------------------------------------------------------------------
-- Loading the package config files and building up the package state
--
-- Returns a list of packages to link in if we're doing dynamic linking.
-- This list contains the packages that the user explicitly mentioned with
--- -package flags.
+-- @-package@ flags.
--
-- 'initPackages' can be called again subsequently after updating the
-- 'packageFlags' field of the 'DynFlags', and it will update the
--- 'packageState' in 'DynFlags' and return a list of packages to
+-- 'pkgState' in 'DynFlags' and return a list of packages to
-- link in.
initPackages :: DynFlags -> IO (DynFlags, [PackageId])
initPackages dflags = do
readPackageConfigs :: DynFlags -> IO PackageConfigMap
readPackageConfigs dflags = do
- e_pkg_path <- try (getEnv "GHC_PACKAGE_PATH")
+ e_pkg_path <- tryIO (getEnv "GHC_PACKAGE_PATH")
system_pkgconfs <- getSystemPackageConfigs dflags
let pkgconfs = case e_pkg_path of
-- unless the -no-user-package-conf flag was given.
-- We only do this when getAppUserDataDirectory is available
-- (GHC >= 6.3).
- user_pkgconf <- handle (\_ -> return []) $ do
+ user_pkgconf <- do
appdir <- getAppUserDataDirectory "ghc"
let
pkgconf = appdir
if (flg && dopt Opt_ReadUserPackageConf dflags)
then return [pkgconf]
else return []
+ `catchIO` (\_ -> return [])
return (user_pkgconf ++ system_pkgconfs ++ [system_pkgconf])
matchingPackages :: String -> [PackageConfig]
-> Maybe ([PackageConfig], [PackageConfig])
matchingPackages str pkgs
- = case partition (matches str) pkgs of
+ = case partition (packageMatches str) pkgs of
([],_) -> Nothing
(ps,rest) -> Just (sortByVersion ps, rest)
- where
- -- A package named on the command line can either include the
- -- version, or just the name if it is unambiguous.
- matches str p
- = str == display (package p)
- || str == display (pkgName (package p))
+
+-- A package named on the command line can either include the
+-- version, or just the name if it is unambiguous.
+packageMatches :: String -> PackageConfig -> Bool
+packageMatches str p
+ = str == display (package p)
+ || str == display (pkgName (package p))
pickPackages :: [PackageConfig] -> [String] -> [PackageConfig]
pickPackages pkgs strs =
(rtsPackageId, [""]),
(haskell98PackageId, [""]),
(thPackageId, [""]),
- (ndpPackageId, ["-seq", "-par"]) ]
+ (dphSeqPackageId, [""]),
+ (dphParPackageId, [""])]
matches :: PackageConfig -> (PackageId, [String]) -> Bool
pc `matches` (pid, suffixes)
-> IO (Maybe (PackageIdentifier, PackageId))
findWiredInPackage pkgs wired_pkg =
let all_ps = [ p | p <- pkgs, p `matches` wired_pkg ] in
- case filter exposed all_ps of
- [] -> case all_ps of
- [] -> notfound
- many -> pick (head (sortByVersion many))
- many -> pick (head (sortByVersion many))
+ case all_ps of
+ [] -> notfound
+ many -> pick (head (sortByVersion many))
where
suffixes = snd wired_pkg
notfound = do
let
wired_in_ids = catMaybes mb_wired_in_ids
- deleteOtherWiredInPackages pkgs = filterOut bad pkgs
- where bad p = any (p `matches`) wired_in_pkgids
- && package p `notElem` map fst wired_in_ids
+ -- this is old: we used to assume that if there were
+ -- multiple versions of wired-in packages installed that
+ -- they were mutually exclusive. Now we're assuming that
+ -- you have one "main" version of each wired-in package
+ -- (the latest version), and the others are backward-compat
+ -- wrappers that depend on this one. e.g. base-4.0 is the
+ -- latest, base-3.0 is a compat wrapper depending on base-4.0.
+ {-
+ deleteOtherWiredInPackages pkgs = filterOut bad pkgs
+ where bad p = any (p `matches`) wired_in_pkgids
+ && package p `notElem` map fst wired_in_ids
+ -}
updateWiredInDependencies pkgs = map upd_pkg pkgs
where upd_pkg p = p{ package = upd_pid (package p),
((x, y):_) -> x{ pkgName = PackageName (packageIdString y),
pkgVersion = Version [] [] }
- pkgs1 = deleteOtherWiredInPackages pkgs
+ -- pkgs1 = deleteOtherWiredInPackages pkgs
- pkgs2 = updateWiredInDependencies pkgs1
+ pkgs2 = updateWiredInDependencies pkgs
preload1 = map upd_pid preload
let pkg_db = extendPackageConfigMap emptyPackageConfigMap pkgs
-- add base & rts to the preload packages
- basicLinkedPackages = filter (flip elemUFM pkg_db)
- [basePackageId,rtsPackageId]
+ basicLinkedPackages
+ | dopt Opt_AutoLinkPackages dflags
+ = filter (flip elemUFM pkg_db) [basePackageId, rtsPackageId]
+ | otherwise = []
-- but in any case remove the current package from the set of
-- preloaded packages so that base/rts does not end up in the
-- set up preloaded package when we are just building it
-- of preload (command-line) packages to determine which packages to
-- use.
+-- | Find all the include directories in these and the preload packages
getPackageIncludePath :: DynFlags -> [PackageId] -> IO [String]
-getPackageIncludePath dflags pkgs = do
- ps <- getPreloadPackagesAnd dflags pkgs
- return (nub (filter notNull (concatMap includeDirs ps)))
+getPackageIncludePath dflags pkgs =
+ collectIncludeDirs `fmap` getPreloadPackagesAnd dflags pkgs
+
+collectIncludeDirs :: [PackageConfig] -> [FilePath]
+collectIncludeDirs ps = nub (filter notNull (concatMap includeDirs ps))
+-- | Find all the library paths in these and the preload packages
getPackageLibraryPath :: DynFlags -> [PackageId] -> IO [String]
-getPackageLibraryPath dflags pkgs = do
- ps <- getPreloadPackagesAnd dflags pkgs
- return (nub (filter notNull (concatMap libraryDirs ps)))
+getPackageLibraryPath dflags pkgs =
+ collectLibraryPaths `fmap` getPreloadPackagesAnd dflags pkgs
+
+collectLibraryPaths :: [PackageConfig] -> [FilePath]
+collectLibraryPaths ps = nub (filter notNull (concatMap libraryDirs ps))
+-- | Find all the link options in these and the preload packages
getPackageLinkOpts :: DynFlags -> [PackageId] -> IO [String]
-getPackageLinkOpts dflags pkgs = do
- ps <- getPreloadPackagesAnd dflags pkgs
- let tag = buildTag dflags
- rts_tag = rtsBuildTag dflags
- let
+getPackageLinkOpts dflags pkgs =
+ collectLinkOpts dflags `fmap` getPreloadPackagesAnd dflags pkgs
+
+collectLinkOpts :: DynFlags -> [PackageConfig] -> [String]
+collectLinkOpts dflags ps = concat (map all_opts ps)
+ where
+ libs p = packageHsLibs dflags p ++ extraLibraries p
+ all_opts p = map ("-l" ++) (libs p) ++ ldOptions p
+
+packageHsLibs :: DynFlags -> PackageConfig -> [String]
+packageHsLibs dflags p = map (mkDynName . addSuffix) (hsLibraries p)
+ where
+ tag = buildTag dflags
+ rts_tag = rtsBuildTag dflags
+
mkDynName | opt_Static = id
| otherwise = (++ ("-ghc" ++ cProjectVersion))
- libs p = map (mkDynName . addSuffix) (hsLibraries p)
- ++ extraLibraries p
- all_opts p = map ("-l" ++) (libs p) ++ ldOptions p
addSuffix rts@"HSrts" = rts ++ (expandTag rts_tag)
addSuffix other_lib = other_lib ++ (expandTag tag)
expandTag t | null t = ""
| otherwise = '_':t
- return (concat (map all_opts ps))
-
+-- | Find all the C-compiler options in these and the preload packages
getPackageExtraCcOpts :: DynFlags -> [PackageId] -> IO [String]
getPackageExtraCcOpts dflags pkgs = do
ps <- getPreloadPackagesAnd dflags pkgs
return (concatMap ccOptions ps)
+-- | Find all the package framework paths in these and the preload packages
getPackageFrameworkPath :: DynFlags -> [PackageId] -> IO [String]
getPackageFrameworkPath dflags pkgs = do
ps <- getPreloadPackagesAnd dflags pkgs
return (nub (filter notNull (concatMap frameworkDirs ps)))
+-- | Find all the package frameworks in these and the preload packages
getPackageFrameworks :: DynFlags -> [PackageId] -> IO [String]
getPackageFrameworks dflags pkgs = do
ps <- getPreloadPackagesAnd dflags pkgs
-- -----------------------------------------------------------------------------
-- Package Utils
--- | Takes a Module, and if the module is in a package returns
--- @(pkgconf,exposed)@ where pkgconf is the PackageConfig for that package,
--- and exposed is True if the package exposes the module.
+-- | Takes a 'Module', and if the module is in a package returns
+-- @(pkgconf, exposed)@ where pkgconf is the PackageConfig for that package,
+-- and exposed is @True@ if the package exposes the module.
lookupModuleInAllPackages :: DynFlags -> ModuleName -> [(PackageConfig,Bool)]
lookupModuleInAllPackages dflags m =
case lookupUFM (moduleToPkgConfAll (pkgState dflags)) m of
Nothing -> []
Just ps -> ps
+-- | Find all the 'PackageConfig' in both the preload packages from 'DynFlags' and corresponding to the list of
+-- 'PackageConfig's
getPreloadPackagesAnd :: DynFlags -> [PackageId] -> IO [PackageConfig]
getPreloadPackagesAnd dflags pkgids =
let
throwErr :: MaybeErr Message a -> IO a
throwErr m = case m of
- Failed e -> throwDyn (CmdLineError (showSDoc e))
+ Failed e -> ghcError (CmdLineError (showSDoc e))
Succeeded r -> return r
closeDepsErr :: PackageConfigMap -> [(PackageId,Maybe PackageId)]
return (p : ps')
missingPackageErr :: String -> IO [PackageConfig]
-missingPackageErr p = throwDyn (CmdLineError (showSDoc (missingPackageMsg p)))
+missingPackageErr p = ghcError (CmdLineError (showSDoc (missingPackageMsg p)))
missingPackageMsg :: String -> SDoc
missingPackageMsg p = ptext (sLit "unknown package:") <+> text p
-- -----------------------------------------------------------------------------
+-- | Will the 'Name' come from a dynamically linked library?
isDllName :: PackageId -> Name -> Bool
isDllName this_pkg name
| opt_Static = False
-- -----------------------------------------------------------------------------
-- Displaying packages
+-- | Show package info on console, if verbosity is >= 3
dumpPackages :: DynFlags -> IO ()
--- Show package info on console, if verbosity is >= 3
dumpPackages dflags
= do let pkg_map = pkgIdMap (pkgState dflags)
putMsg dflags $
- vcat (map (text.showInstalledPackageInfo.to_ipi) (eltsUFM pkg_map))
- where
- to_ipi pkgconf@(InstalledPackageInfo { exposedModules = e,
- hiddenModules = h }) =
- pkgconf{ exposedModules = map moduleNameString e,
- hiddenModules = map moduleNameString h }
+ vcat (map (text . showInstalledPackageInfo
+ . packageConfigToInstalledPackageInfo)
+ (eltsUFM pkg_map))
\end{code}
projects / ghc-hetmet.git / blobdiff