% Package manipulation
%
\begin{code}
-{-# OPTIONS -w #-}
--- The above warning supression flag is a temporary kludge.
--- While working on this module you are encouraged to remove it and fix
--- any warnings in the module. See
--- http://hackage.haskell.org/trac/ghc/wiki/Commentary/CodingStyle#Warnings
--- for details
-
module Packages (
module PackageConfig,
-- * Inspecting the set of packages in scope
getPackageIncludePath,
- getPackageCIncludes,
getPackageLibraryPath,
getPackageLinkOpts,
getPackageExtraCcOpts,
import Panic
import Outputable
-#if __GLASGOW_HASKELL__ < 603
-import Compat.Directory ( getAppUserDataDirectory )
-#endif
-
import System.Environment ( getEnv )
-import Distribution.InstalledPackageInfo
-import Distribution.Package
+import Distribution.InstalledPackageInfo hiding (depends)
+import Distribution.Package hiding (depends)
+import Distribution.Text
import Distribution.Version
import FastString
import ErrUtils ( debugTraceMsg, putMsg, Message )
:: 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
+ proto_pkg_configs <- loadPackageConfig dflags conf_file
let top_dir = topDir dflags
pkg_configs1 = mungePackagePaths top_dir proto_pkg_configs
pkg_configs2 = maybeHidePackages dflags pkg_configs1
munge_pkg p = p{ importDirs = munge_paths (importDirs p),
includeDirs = munge_paths (includeDirs p),
libraryDirs = munge_paths (libraryDirs p),
- frameworkDirs = munge_paths (frameworkDirs p) }
+ frameworkDirs = munge_paths (frameworkDirs p),
+ haddockInterfaces = munge_paths (haddockInterfaces p),
+ haddockHTMLs = munge_paths (haddockHTMLs p)
+ }
munge_paths = map munge_path
ExposePackage str ->
case matchingPackages str pkgs of
Nothing -> missingPackageErr str
+ Just ([], _) -> panic "applyPackageFlag"
Just (p:ps,qs) -> return (p':ps')
where p' = p {exposed=True}
ps' = hideAll (pkgName (package p)) (ps++qs)
IgnorePackage str ->
case matchingPackages str pkgs of
Nothing -> return pkgs
- Just (ps,qs) -> return qs
+ Just (_, qs) -> return qs
-- 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.
-- 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)
-
+ = str == display (package p)
+ || str == display (pkgName (package p))
+pickPackages :: [PackageConfig] -> [String] -> [PackageConfig]
pickPackages pkgs strs =
- [ p | p <- strs, Just (p:ps,_) <- [matchingPackages p pkgs] ]
+ [ p | p <- strs, Just (p:_, _) <- [matchingPackages p pkgs] ]
+sortByVersion :: [InstalledPackageInfo_ m] -> [InstalledPackageInfo_ m]
sortByVersion = sortBy (flip (comparing (pkgVersion.package)))
+
+comparing :: Ord a => (t -> a) -> t -> t -> Ordering
comparing f a b = f a `compare` f b
-- -----------------------------------------------------------------------------
| 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')))
+ (ptext (sLit "hiding package") <+>
+ text (display (package p)) <+>
+ ptext (sLit "to avoid conflict with later version") <+>
+ text (display (package p')))
return (p {exposed=False})
| otherwise = return p
where myname = pkgName (package p)
-- their canonical names (eg. base-1.0 ==> base).
--
let
- wired_in_pkgids = [ basePackageId,
- rtsPackageId,
- haskell98PackageId,
- thPackageId,
- ndpPackageId ]
-
- wired_in_names = map packageIdString wired_in_pkgids
+ wired_in_pkgids :: [(PackageId, [String])]
+ wired_in_pkgids = [ (primPackageId, [""]),
+ (integerPackageId, [""]),
+ (basePackageId, [""]),
+ (rtsPackageId, [""]),
+ (haskell98PackageId, [""]),
+ (thPackageId, [""]),
+ (dphSeqPackageId, [""]),
+ (dphParPackageId, [""]),
+ (ndpPackageId, ["-seq", "-par"]) ]
+
+ matches :: PackageConfig -> (PackageId, [String]) -> Bool
+ pc `matches` (pid, suffixes)
+ = display (pkgName (package pc)) `elem`
+ (map (packageIdString pid ++) suffixes)
-- find which package corresponds to each wired-in package
-- delete any other packages with the same name
-- version. To override the default choice, -hide-package
-- could be used to hide newer versions.
--
- findWiredInPackage :: [PackageConfig] -> String
- -> IO (Maybe PackageIdentifier)
+ findWiredInPackage :: [PackageConfig] -> (PackageId, [String])
+ -> IO (Maybe (PackageIdentifier, PackageId))
findWiredInPackage pkgs wired_pkg =
- let all_ps = [ p | p <- pkgs, pkgName (package p) == wired_pkg ] in
+ 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))
where
+ suffixes = snd wired_pkg
notfound = do
debugTraceMsg dflags 2 $
- ptext SLIT("wired-in package ")
- <> text wired_pkg
- <> ptext SLIT(" not found.")
+ ptext (sLit "wired-in package ")
+ <> ppr (fst wired_pkg)
+ <> (if null suffixes
+ then empty
+ else text (show suffixes))
+ <> ptext (sLit " not found.")
return Nothing
+ pick :: InstalledPackageInfo_ ModuleName
+ -> IO (Maybe (PackageIdentifier, PackageId))
pick pkg = do
debugTraceMsg dflags 2 $
- ptext SLIT("wired-in package ")
- <> text wired_pkg
- <> ptext SLIT(" mapped to ")
- <> text (showPackageId (package pkg))
- return (Just (package pkg))
+ ptext (sLit "wired-in package ")
+ <> ppr (fst wired_pkg)
+ <> ptext (sLit " mapped to ")
+ <> text (display (package pkg))
+ return (Just (package pkg, fst wired_pkg))
- mb_wired_in_ids <- mapM (findWiredInPackage pkgs) wired_in_names
+ mb_wired_in_ids <- mapM (findWiredInPackage pkgs) wired_in_pkgids
let
wired_in_ids = catMaybes mb_wired_in_ids
- deleteOtherWiredInPackages pkgs = filter ok pkgs
- where ok p = pkgName (package p) `notElem` wired_in_names
- || package p `elem` 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
updateWiredInDependencies pkgs = map upd_pkg pkgs
where upd_pkg p = p{ package = upd_pid (package p),
depends = map upd_pid (depends p) }
- upd_pid pid = case filter (== pid) wired_in_ids of
+ upd_pid pid = case filter ((== pid) . fst) wired_in_ids of
[] -> pid
- (x:_) -> x{ pkgVersion = Version [] [] }
+ ((x, y):_) -> x{ pkgName = PackageName (packageIdString y),
+ pkgVersion = Version [] [] }
pkgs1 = deleteOtherWiredInPackages pkgs
return (pkgs2, preload1, new_this_pkg)
--- -----------------------------------------------------------------------------
+-- ----------------------------------------------------------------------------
--
--- Eliminate any packages which have dangling dependencies (
--- because the dependency was removed by -ignore-package).
+-- Detect any packages that have missing dependencies, and also any
+-- mutually-recursive groups of packages (loops in the package graph
+-- are not allowed). We do this by taking the least fixpoint of the
+-- dependency graph, repeatedly adding packages whose dependencies are
+-- satisfied until no more can be added.
--
elimDanglingDeps
:: DynFlags
-> [PackageId] -- ignored packages
-> IO [PackageConfig]
-elimDanglingDeps dflags pkgs ignored =
- case partition (not.null.snd) (map (getDanglingDeps pkgs ignored) pkgs) of
- ([],ps) -> return (map fst ps)
- (ps,qs) -> do
- mapM_ reportElim ps
- elimDanglingDeps dflags (map fst qs)
- (ignored ++ map packageConfigId (map fst ps))
+elimDanglingDeps dflags pkgs ignored = go [] pkgs'
where
+ pkgs' = filter (\p -> packageConfigId p `notElem` ignored) pkgs
+
+ go avail not_avail =
+ case partitionWith (depsAvailable avail) not_avail of
+ ([], not_avail) -> do mapM_ reportElim not_avail; return avail
+ (new_avail, not_avail) -> go (new_avail ++ avail) (map fst not_avail)
+
+ depsAvailable :: [PackageConfig] -> PackageConfig
+ -> Either PackageConfig (PackageConfig, [PackageIdentifier])
+ depsAvailable pkgs_ok pkg
+ | null dangling = Left pkg
+ | otherwise = Right (pkg, dangling)
+ where dangling = filter (`notElem` pids) (depends pkg)
+ pids = map package pkgs_ok
+
reportElim (p, deps) =
debugTraceMsg dflags 2 $
- (ptext SLIT("package") <+> pprPkg p <+>
- ptext SLIT("will be ignored due to missing dependencies:") $$
- nest 2 (hsep (map (text.showPackageId) deps)))
-
- getDanglingDeps pkgs ignored p = (p, filter dangling (depends p))
- where dangling pid = mkPackageId pid `elem` ignored
+ (ptext (sLit "package") <+> pprPkg p <+>
+ ptext (sLit "will be ignored due to missing or recursive dependencies:") $$
+ nest 2 (hsep (map (text.display) deps)))
-- -----------------------------------------------------------------------------
-- When all the command-line options are in, we can process our package
pkgs <- elimDanglingDeps dflags pkgs3 ignored
let pkg_db = extendPackageConfigMap emptyPackageConfigMap pkgs
- pkgids = map packageConfigId pkgs
-- add base & rts to the preload packages
basicLinkedPackages = filter (flip elemUFM pkg_db)
hidden_mods = hiddenModules pkg
pprPkg :: PackageConfig -> SDoc
-pprPkg p = text (showPackageId (package p))
+pprPkg p = text (display (package p))
-- -----------------------------------------------------------------------------
-- Extracting information from the packages in scope
ps <- getPreloadPackagesAnd 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 <- getPreloadPackagesAnd dflags pkgs
ps' <- foldM (add_package pkg_db) ps (zip deps (repeat (Just p)))
return (p : ps')
+missingPackageErr :: String -> IO [PackageConfig]
missingPackageErr p = throwDyn (CmdLineError (showSDoc (missingPackageMsg p)))
-missingPackageMsg p = ptext SLIT("unknown package:") <+> text p
+missingPackageMsg :: String -> SDoc
+missingPackageMsg p = ptext (sLit "unknown package:") <+> text p
+
+missingDependencyMsg :: Maybe PackageId -> SDoc
missingDependencyMsg Nothing = empty
missingDependencyMsg (Just parent)
- = space <> parens (ptext SLIT("dependency of") <+> ftext (packageIdFS parent))
+ = space <> parens (ptext (sLit "dependency of") <+> ftext (packageIdFS parent))
-- -----------------------------------------------------------------------------
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