+++ /dev/null
-%
-% (c) The University of Glasgow, 2000
-%
-\section{Package manipulation}
-
-\begin{code}
-module Packages (
- module PackageConfig,
-
- -- * The PackageConfigMap
- PackageConfigMap, emptyPackageConfigMap, lookupPackage,
- extendPackageConfigMap, dumpPackages,
-
- -- * Reading the package config, and processing cmdline args
- PackageIdH(..), isHomePackage,
- PackageState(..),
- mkPackageState,
- initPackages,
- getPackageDetails,
- checkForPackageConflicts,
- lookupModuleInAllPackages,
-
- HomeModules, mkHomeModules, isHomeModule,
-
- -- * Inspecting the set of packages in scope
- getPackageIncludePath,
- getPackageCIncludes,
- getPackageLibraryPath,
- getPackageLinkOpts,
- getPackageExtraCcOpts,
- getPackageFrameworkPath,
- getPackageFrameworks,
- getExplicitPackagesAnd,
-
- -- * Utils
- isDllName
- )
-where
-
-#include "HsVersions.h"
-
-import PackageConfig
-import SysTools ( getTopDir, getPackageConfigPath )
-import ParsePkgConf ( loadPackageConfig )
-import DynFlags ( dopt, DynFlag(..), DynFlags(..), PackageFlag(..) )
-import StaticFlags ( opt_Static )
-import Config ( cProjectVersion )
-import Name ( Name, nameModule_maybe )
-import UniqFM
-import Module
-import FiniteMap
-import UniqSet
-import Util
-import Maybes ( expectJust, MaybeErr(..) )
-import Panic
-import Outputable
-
-#if __GLASGOW_HASKELL__ >= 603
-import System.Directory ( getAppUserDataDirectory )
-#else
-import Compat.Directory ( getAppUserDataDirectory )
-#endif
-
-import System.Environment ( getEnv )
-import Distribution.InstalledPackageInfo
-import Distribution.Package
-import Distribution.Version
-import System.Directory ( doesFileExist, doesDirectoryExist,
- getDirectoryContents )
-import Control.Monad ( foldM )
-import Data.List ( nub, partition, sortBy, isSuffixOf )
-import FastString
-import EXCEPTION ( throwDyn )
-import ErrUtils ( debugTraceMsg, putMsg, Message )
-
--- ---------------------------------------------------------------------------
--- The Package state
-
--- Package state is all stored in DynFlags, 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
--- with the same name 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
--- their dependencies.
---
--- * It is an error for any two packages in depExposedPackages to provide the
--- same module.
---
--- * When searching for a module from an explicit import declaration,
--- only the exposed modules in exposedPackages are valid.
---
--- * When searching for a module from an implicit import, all modules
--- from depExposedPackages are valid.
---
--- * When linking in a comp 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 explicit -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
--- contain any Haskell modules, and therefore won't be discovered
--- by the normal mechanism of dependency tracking.
-
-
--- One important thing that the package state provides is a way to
--- tell, for a given module, whether it is part of the current package
--- or not. We need to know this for two reasons:
---
--- * generating cross-DLL calls is different from intra-DLL calls
--- (see below).
--- * we don't record version information in interface files for entities
--- in a different package.
---
--- Notes on DLLs
--- ~~~~~~~~~~~~~
--- When compiling module A, which imports module B, we need to
--- know whether B will be in the same DLL as A.
--- If it's in the same DLL, we refer to B_f_closure
--- If it isn't, we refer to _imp__B_f_closure
--- When compiling A, we record in B's Module value whether it's
--- in a different DLL, by setting the DLL flag.
-
-data PackageState = PackageState {
-
- explicitPackages :: [PackageId],
- -- The packages we're going to link in eagerly. This list
- -- should be in reverse dependency order; that is, a package
- -- is always mentioned before the packages it depends on.
-
- origPkgIdMap :: PackageConfigMap, -- PackageId -> PackageConfig
- -- the full package database
-
- pkgIdMap :: PackageConfigMap, -- PackageId -> PackageConfig
- -- Derived from origPkgIdMap.
- -- The exposed flags are adjusted according to -package and
- -- -hide-package flags, and -ignore-package removes packages.
-
- moduleToPkgConfAll :: ModuleEnv [(PackageConfig,Bool)],
- -- Derived from pkgIdMap.
- -- Maps Module to (pkgconf,exposed), where pkgconf is the
- -- PackageConfig for the package containing the module, and
- -- exposed is True if the package exposes that module.
-
- -- The PackageIds of some known packages
- basePackageId :: PackageIdH,
- rtsPackageId :: PackageIdH,
- haskell98PackageId :: PackageIdH,
- thPackageId :: PackageIdH
- }
-
-data PackageIdH
- = HomePackage -- The "home" package is the package curently
- -- being compiled
- | ExtPackage PackageId -- An "external" package is any other package
-
-
-isHomePackage :: PackageIdH -> Bool
-isHomePackage HomePackage = True
-isHomePackage (ExtPackage _) = False
-
--- A PackageConfigMap maps a PackageId to a PackageConfig
-type PackageConfigMap = UniqFM PackageConfig
-
-emptyPackageConfigMap :: PackageConfigMap
-emptyPackageConfigMap = emptyUFM
-
-lookupPackage :: PackageConfigMap -> PackageId -> Maybe PackageConfig
-lookupPackage = lookupUFM
-
-extendPackageConfigMap
- :: PackageConfigMap -> [PackageConfig] -> PackageConfigMap
-extendPackageConfigMap pkg_map new_pkgs
- = foldl add pkg_map new_pkgs
- where add pkg_map p = addToUFM pkg_map (packageConfigId p) p
-
-getPackageDetails :: PackageState -> PackageId -> PackageConfig
-getPackageDetails dflags ps = expectJust "getPackageDetails" (lookupPackage (pkgIdMap dflags) ps)
-
--- ----------------------------------------------------------------------------
--- Loading the package config files and building up the package state
-
--- | Call this after parsing the DynFlags. It reads the package
--- configuration files, and sets up various internal tables of package
--- information, according to the package-related flags on the
--- command-line (@-package@, @-hide-package@ etc.)
-initPackages :: DynFlags -> IO DynFlags
-initPackages dflags = do
- pkg_map <- readPackageConfigs dflags;
- state <- mkPackageState dflags pkg_map
- return dflags{ pkgState = state }
-
--- -----------------------------------------------------------------------------
--- Reading the package database(s)
-
-readPackageConfigs :: DynFlags -> IO PackageConfigMap
-readPackageConfigs dflags = do
- e_pkg_path <- try (getEnv "GHC_PACKAGE_PATH")
- system_pkgconfs <- getSystemPackageConfigs dflags
-
- let pkgconfs = case e_pkg_path of
- Left _ -> system_pkgconfs
- Right path
- | last cs == "" -> init cs ++ system_pkgconfs
- | otherwise -> cs
- where cs = parseSearchPath path
- -- if the path ends in a separator (eg. "/foo/bar:")
- -- the we tack on the system paths.
-
- -- Read all the ones mentioned in -package-conf flags
- pkg_map <- foldM (readPackageConfig dflags) emptyPackageConfigMap
- (reverse pkgconfs ++ extraPkgConfs dflags)
-
- return pkg_map
-
-
-getSystemPackageConfigs :: DynFlags -> IO [FilePath]
-getSystemPackageConfigs dflags = do
- -- System one always comes first
- system_pkgconf <- getPackageConfigPath
-
- -- allow package.conf.d to contain a bunch of .conf files
- -- containing package specifications. This is an easier way
- -- to maintain the package database on systems with a package
- -- management system, or systems that don't want to run ghc-pkg
- -- to register or unregister packages. Undocumented feature for now.
- let system_pkgconf_dir = system_pkgconf ++ ".d"
- system_pkgconf_dir_exists <- doesDirectoryExist system_pkgconf_dir
- system_pkgconfs <-
- if system_pkgconf_dir_exists
- then do files <- getDirectoryContents system_pkgconf_dir
- return [ system_pkgconf_dir ++ '/' : file
- | file <- files
- , isSuffixOf ".conf" file]
- else return []
-
- -- Read user's package conf (eg. ~/.ghc/i386-linux-6.3/package.conf)
- -- 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
- appdir <- getAppUserDataDirectory "ghc"
- let
- pkgconf = appdir
- `joinFileName` (TARGET_ARCH ++ '-':TARGET_OS ++ '-':cProjectVersion)
- `joinFileName` "package.conf"
- flg <- doesFileExist pkgconf
- if (flg && dopt Opt_ReadUserPackageConf dflags)
- then return [pkgconf]
- else return []
-
- return (user_pkgconf ++ system_pkgconfs ++ [system_pkgconf])
-
-
-readPackageConfig
- :: DynFlags -> PackageConfigMap -> FilePath -> IO PackageConfigMap
-readPackageConfig dflags pkg_map conf_file = do
- debugTraceMsg dflags 2 (text "Using package config file:" <+> text conf_file)
- proto_pkg_configs <- loadPackageConfig conf_file
- top_dir <- getTopDir
- let pkg_configs1 = mungePackagePaths top_dir proto_pkg_configs
- pkg_configs2 = maybeHidePackages dflags pkg_configs1
- return (extendPackageConfigMap pkg_map pkg_configs2)
-
-maybeHidePackages :: DynFlags -> [PackageConfig] -> [PackageConfig]
-maybeHidePackages dflags pkgs
- | dopt Opt_HideAllPackages dflags = map hide pkgs
- | otherwise = pkgs
- where
- hide pkg = pkg{ exposed = False }
-
-mungePackagePaths :: String -> [PackageConfig] -> [PackageConfig]
--- Replace the string "$topdir" at the beginning of a path
--- with the current topdir (obtained from the -B option).
-mungePackagePaths top_dir ps = map munge_pkg ps
- where
- munge_pkg p = p{ importDirs = munge_paths (importDirs p),
- includeDirs = munge_paths (includeDirs p),
- libraryDirs = munge_paths (libraryDirs p),
- frameworkDirs = munge_paths (frameworkDirs p) }
-
- munge_paths = map munge_path
-
- munge_path p
- | Just p' <- maybePrefixMatch "$topdir" p = top_dir ++ p'
- | otherwise = p
-
-
--- -----------------------------------------------------------------------------
--- When all the command-line options are in, we can process our package
--- settings and populate the package state.
-
-mkPackageState :: DynFlags -> PackageConfigMap -> IO PackageState
-mkPackageState dflags orig_pkg_db = do
- --
- -- Modify the package database according to the command-line flags
- -- (-package, -hide-package, -ignore-package, -hide-all-packages).
- --
- -- Also, here we build up a set of the packages mentioned in -package
- -- flags on the command line; these are called the "explicit" packages.
- -- we link these packages in eagerly. The explicit set should contain
- -- at least rts & base, which is why we pretend that the command line
- -- contains -package rts & -package base.
- --
- let
- flags = reverse (packageFlags dflags)
-
- procflags pkgs expl [] = return (pkgs,expl)
- procflags pkgs expl (ExposePackage str : flags) = do
- case pick str pkgs of
- Nothing -> missingPackageErr str
- Just (p,ps) -> procflags (p':ps') expl' flags
- where pkgid = packageConfigId p
- p' = p {exposed=True}
- ps' = hideAll (pkgName (package p)) ps
- expl' = addOneToUniqSet expl pkgid
- procflags pkgs expl (HidePackage str : flags) = do
- case partition (matches str) pkgs of
- ([],_) -> missingPackageErr str
- (ps,qs) -> procflags (map hide ps ++ qs) expl flags
- where hide p = p {exposed=False}
- procflags pkgs expl (IgnorePackage str : flags) = do
- case partition (matches str) pkgs of
- (ps,qs) -> procflags qs expl flags
- -- missing package is not an error for -ignore-package,
- -- because a common usage is to -ignore-package P as
- -- a preventative measure just in case P exists.
-
- pick str pkgs
- = case partition (matches str) pkgs of
- ([],_) -> Nothing
- (ps,rest) ->
- case sortBy (flip (comparing (pkgVersion.package))) ps of
- (p:ps) -> Just (p, ps ++ rest)
- _ -> panic "Packages.pick"
-
- comparing f a b = f a `compare` f b
-
- -- A package named on the command line can either include the
- -- version, or just the name if it is unambiguous.
- matches str p
- = str == showPackageId (package p)
- || str == pkgName (package p)
-
- -- When a package is requested to be exposed, we hide all other
- -- packages with the same name.
- hideAll name ps = map maybe_hide ps
- where maybe_hide p | pkgName (package p) == name = p {exposed=False}
- | otherwise = p
- --
- (pkgs1,explicit) <- procflags (eltsUFM orig_pkg_db) emptyUniqSet flags
- --
- -- hide all packages for which there is also a later version
- -- that is already exposed. This just makes it non-fatal to have two
- -- versions of a package exposed, which can happen if you install a
- -- later version of a package in the user database, for example.
- --
- let maybe_hide p
- | not (exposed p) = return p
- | (p' : _) <- later_versions = do
- debugTraceMsg dflags 2 $
- (ptext SLIT("hiding package") <+> text (showPackageId (package p)) <+>
- ptext SLIT("to avoid conflict with later version") <+>
- text (showPackageId (package p')))
- return (p {exposed=False})
- | otherwise = return p
- where myname = pkgName (package p)
- myversion = pkgVersion (package p)
- later_versions = [ p | p <- pkgs1, exposed p,
- let pkg = package p,
- pkgName pkg == myname,
- pkgVersion pkg > myversion ]
- a_later_version_is_exposed
- = not (null later_versions)
-
- pkgs2 <- mapM maybe_hide pkgs1
- --
- -- Eliminate any packages which have dangling dependencies (perhaps
- -- because the package was removed by -ignore-package).
- --
- let
- elimDanglingDeps pkgs =
- case partition (not.null.snd) (map (getDanglingDeps pkgs) pkgs) of
- ([],ps) -> return (map fst ps)
- (ps,qs) -> do
- mapM_ reportElim ps
- elimDanglingDeps (map fst qs)
-
- reportElim (p, deps) =
- debugTraceMsg dflags 2 $
- (ptext SLIT("package") <+> pprPkg p <+>
- ptext SLIT("will be ignored due to missing dependencies:") $$
- nest 2 (hsep (map (text.showPackageId) deps)))
-
- getDanglingDeps pkgs p = (p, filter dangling (depends p))
- where dangling pid = pid `notElem` all_pids
- all_pids = map package pkgs
- --
- pkgs <- elimDanglingDeps pkgs2
- let pkg_db = extendPackageConfigMap emptyPackageConfigMap pkgs
- --
- -- Find the transitive closure of dependencies of exposed
- --
- let exposed_pkgids = [ packageConfigId p | p <- pkgs, exposed p ]
- dep_exposed <- closeDeps pkg_db exposed_pkgids
- --
- -- Look up some known PackageIds
- --
- let
- lookupPackageByName :: FastString -> PackageIdH
- lookupPackageByName nm =
- case [ conf | p <- dep_exposed,
- Just conf <- [lookupPackage pkg_db p],
- nm == mkFastString (pkgName (package conf)) ] of
- [] -> HomePackage
- (p:ps) -> ExtPackage (mkPackageId (package p))
-
- -- Get the PackageIds for some known packages (we know the names,
- -- but we don't know the versions). Some of these packages might
- -- not exist in the database, so they are Maybes.
- basePackageId = lookupPackageByName basePackageName
- rtsPackageId = lookupPackageByName rtsPackageName
- haskell98PackageId = lookupPackageByName haskell98PackageName
- thPackageId = lookupPackageByName thPackageName
-
- -- add base & rts to the explicit packages
- basicLinkedPackages = [basePackageId,rtsPackageId]
- explicit' = addListToUniqSet explicit
- [ p | ExtPackage p <- basicLinkedPackages ]
- --
- -- Close the explicit packages with their dependencies
- --
- dep_explicit <- closeDeps pkg_db (uniqSetToList explicit')
- --
- -- Build up a mapping from Module -> PackageConfig for all modules.
- -- Discover any conflicts at the same time, and factor in the new exposed
- -- status of each package.
- --
- let mod_map = mkModuleMap pkg_db dep_exposed
-
- return PackageState{ explicitPackages = dep_explicit,
- origPkgIdMap = orig_pkg_db,
- pkgIdMap = pkg_db,
- moduleToPkgConfAll = mod_map,
- basePackageId = basePackageId,
- rtsPackageId = rtsPackageId,
- haskell98PackageId = haskell98PackageId,
- thPackageId = thPackageId
- }
- -- done!
-
-basePackageName = FSLIT("base")
-rtsPackageName = FSLIT("rts")
-haskell98PackageName = FSLIT("haskell98")
-thPackageName = FSLIT("template-haskell")
- -- Template Haskell libraries in here
-
-mkModuleMap
- :: PackageConfigMap
- -> [PackageId]
- -> ModuleEnv [(PackageConfig, Bool)]
-mkModuleMap pkg_db pkgs = foldr extend_modmap emptyUFM pkgs
- where
- extend_modmap pkgname modmap =
- addListToUFM_C (++) modmap
- [(m, [(pkg, m `elem` exposed_mods)]) | m <- all_mods]
- where
- pkg = expectJust "mkModuleMap" (lookupPackage pkg_db pkgname)
- exposed_mods = map mkModule (exposedModules pkg)
- hidden_mods = map mkModule (hiddenModules pkg)
- all_mods = exposed_mods ++ hidden_mods
-
--- -----------------------------------------------------------------------------
--- Check for conflicts in the program.
-
--- | A conflict arises if the program contains two modules with the same
--- name, which can arise if the program depends on multiple packages that
--- expose the same module, or if the program depends on a package that
--- contains a module also present in the program (the "home package").
---
-checkForPackageConflicts
- :: DynFlags
- -> [Module] -- modules in the home package
- -> [PackageId] -- packages on which the program depends
- -> MaybeErr Message ()
-
-checkForPackageConflicts dflags mods pkgs = do
- let
- state = pkgState dflags
- pkg_db = pkgIdMap state
- --
- dep_pkgs <- closeDepsErr pkg_db pkgs
-
- let
- extend_modmap pkgname modmap =
- addListToFM_C (++) modmap
- [(m, [(pkg, m `elem` exposed_mods)]) | m <- all_mods]
- where
- pkg = expectJust "checkForPackageConflicts"
- (lookupPackage pkg_db pkgname)
- exposed_mods = map mkModule (exposedModules pkg)
- hidden_mods = map mkModule (hiddenModules pkg)
- all_mods = exposed_mods ++ hidden_mods
-
- mod_map = foldr extend_modmap emptyFM pkgs
- mod_map_list :: [(Module,[(PackageConfig,Bool)])]
- mod_map_list = fmToList mod_map
-
- overlaps = [ (m, map fst ps) | (m,ps@(_:_:_)) <- mod_map_list ]
- --
- if not (null overlaps)
- then Failed (pkgOverlapError overlaps)
- else do
-
- let
- overlap_mods = [ (mod,pkg)
- | mod <- mods,
- Just ((pkg,_):_) <- [lookupFM mod_map mod] ]
- -- will be only one package here
- if not (null overlap_mods)
- then Failed (modOverlapError overlap_mods)
- else do
-
- return ()
-
-pkgOverlapError overlaps = vcat (map msg overlaps)
- where
- msg (mod,pkgs) =
- text "conflict: module" <+> quotes (ppr mod)
- <+> ptext SLIT("is present in multiple packages:")
- <+> hsep (punctuate comma (map pprPkg pkgs))
-
-modOverlapError overlaps = vcat (map msg overlaps)
- where
- msg (mod,pkg) = fsep [
- text "conflict: module",
- quotes (ppr mod),
- ptext SLIT("belongs to the current program/library"),
- ptext SLIT("and also to package"),
- pprPkg pkg ]
-
-pprPkg :: PackageConfig -> SDoc
-pprPkg p = text (showPackageId (package p))
-
--- -----------------------------------------------------------------------------
--- Extracting information from the packages in scope
-
--- Many of these functions take a list of packages: in those cases,
--- the list is expected to contain the "dependent packages",
--- i.e. those packages that were found to be depended on by the
--- current module/program. These can be auto or non-auto packages, it
--- doesn't really matter. The list is always combined with the list
--- of explicit (command-line) packages to determine which packages to
--- use.
-
-getPackageIncludePath :: DynFlags -> [PackageId] -> IO [String]
-getPackageIncludePath dflags pkgs = do
- ps <- getExplicitPackagesAnd dflags pkgs
- return (nub (filter notNull (concatMap includeDirs ps)))
-
- -- includes are in reverse dependency order (i.e. rts first)
-getPackageCIncludes :: [PackageConfig] -> IO [String]
-getPackageCIncludes pkg_configs = do
- return (reverse (nub (filter notNull (concatMap includes pkg_configs))))
-
-getPackageLibraryPath :: DynFlags -> [PackageId] -> IO [String]
-getPackageLibraryPath dflags pkgs = do
- ps <- getExplicitPackagesAnd dflags pkgs
- return (nub (filter notNull (concatMap libraryDirs ps)))
-
-getPackageLinkOpts :: DynFlags -> [PackageId] -> IO [String]
-getPackageLinkOpts dflags pkgs = do
- ps <- getExplicitPackagesAnd dflags pkgs
- let tag = buildTag dflags
- rts_tag = rtsBuildTag dflags
- let
- imp = if opt_Static then "" else "_dyn"
- libs p = map ((++imp) . addSuffix) (hsLibraries p)
- ++ hACK_dyn (extraLibraries p)
- all_opts p = map ("-l" ++) (libs p) ++ ldOptions p
-
- suffix = if null tag then "" else '_':tag
- rts_suffix = if null rts_tag then "" else '_':rts_tag
-
- addSuffix rts@"HSrts" = rts ++ rts_suffix
- addSuffix other_lib = other_lib ++ suffix
-
- -- This is a hack that's even more horrible (and hopefully more temporary)
- -- than the one below [referring to previous splittage of HSbase into chunks
- -- to work around GNU ld bug]. HSbase_cbits and friends require the _dyn suffix
- -- for dynamic linking, but not _p or other 'way' suffix. So we just add
- -- _dyn to extraLibraries if they already have a _cbits suffix.
-
- hACK_dyn = map hack
- where hack lib | not opt_Static && "_cbits" `isSuffixOf` lib = lib ++ "_dyn"
- | otherwise = lib
-
- return (concat (map all_opts ps))
-
-getPackageExtraCcOpts :: DynFlags -> [PackageId] -> IO [String]
-getPackageExtraCcOpts dflags pkgs = do
- ps <- getExplicitPackagesAnd dflags pkgs
- return (concatMap ccOptions ps)
-
-getPackageFrameworkPath :: DynFlags -> [PackageId] -> IO [String]
-getPackageFrameworkPath dflags pkgs = do
- ps <- getExplicitPackagesAnd dflags pkgs
- return (nub (filter notNull (concatMap frameworkDirs ps)))
-
-getPackageFrameworks :: DynFlags -> [PackageId] -> IO [String]
-getPackageFrameworks dflags pkgs = do
- ps <- getExplicitPackagesAnd dflags pkgs
- return (concatMap frameworks ps)
-
--- -----------------------------------------------------------------------------
--- 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.
-lookupModuleInAllPackages :: DynFlags -> Module -> [(PackageConfig,Bool)]
-lookupModuleInAllPackages dflags m =
- case lookupModuleEnv (moduleToPkgConfAll (pkgState dflags)) m of
- Nothing -> []
- Just ps -> ps
-
-getExplicitPackagesAnd :: DynFlags -> [PackageId] -> IO [PackageConfig]
-getExplicitPackagesAnd dflags pkgids =
- let
- state = pkgState dflags
- pkg_map = pkgIdMap state
- expl = explicitPackages state
- in do
- all_pkgs <- throwErr (foldM (add_package pkg_map) expl pkgids)
- return (map (getPackageDetails state) all_pkgs)
-
--- Takes a list of packages, and returns the list with dependencies included,
--- in reverse dependency order (a package appears before those it depends on).
-closeDeps :: PackageConfigMap -> [PackageId] -> IO [PackageId]
-closeDeps pkg_map ps = throwErr (closeDepsErr pkg_map ps)
-
-throwErr :: MaybeErr Message a -> IO a
-throwErr m = case m of
- Failed e -> throwDyn (CmdLineError (showSDoc e))
- Succeeded r -> return r
-
-closeDepsErr :: PackageConfigMap -> [PackageId]
- -> MaybeErr Message [PackageId]
-closeDepsErr pkg_map ps = foldM (add_package pkg_map) [] ps
-
--- internal helper
-add_package :: PackageConfigMap -> [PackageId] -> PackageId
- -> MaybeErr Message [PackageId]
-add_package pkg_db ps p
- | p `elem` ps = return ps -- Check if we've already added this package
- | otherwise =
- case lookupPackage pkg_db p of
- Nothing -> Failed (missingPackageMsg (packageIdString p))
- Just pkg -> do
- -- Add the package's dependents also
- let deps = map mkPackageId (depends pkg)
- ps' <- foldM (add_package pkg_db) ps deps
- return (p : ps')
-
-missingPackageErr p = throwDyn (CmdLineError (showSDoc (missingPackageMsg p)))
-missingPackageMsg p = ptext SLIT("unknown package:") <+> text p
-
--- -----------------------------------------------------------------------------
--- The home module set
-
-newtype HomeModules = HomeModules ModuleSet
-
-mkHomeModules :: [Module] -> HomeModules
-mkHomeModules = HomeModules . mkModuleSet
-
-isHomeModule :: HomeModules -> Module -> Bool
-isHomeModule (HomeModules set) mod = elemModuleSet mod set
-
--- Determining whether a Name refers to something in another package or not.
--- Cross-package references need to be handled differently when dynamically-
--- linked libraries are involved.
-
-isDllName :: HomeModules -> Name -> Bool
-isDllName pdeps name
- | opt_Static = False
- | Just mod <- nameModule_maybe name = not (isHomeModule pdeps mod)
- | otherwise = False -- no, it is not even an external name
-
--- -----------------------------------------------------------------------------
--- Displaying packages
-
-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) (eltsUFM pkg_map))
-\end{code}
projects / ghc-hetmet.git / blobdiff