2 % (c) The University of Glasgow, 2006
10 -- * The PackageConfigMap
11 PackageConfigMap, emptyPackageConfigMap, lookupPackage,
12 extendPackageConfigMap, dumpPackages,
14 -- * Reading the package config, and processing cmdline args
18 lookupModuleInAllPackages,
20 -- * Inspecting the set of packages in scope
21 getPackageIncludePath,
23 getPackageLibraryPath,
25 getPackageExtraCcOpts,
26 getPackageFrameworkPath,
28 getPreloadPackagesAnd,
35 #include "HsVersions.h"
38 import ParsePkgConf ( loadPackageConfig )
39 import DynFlags ( dopt, DynFlag(..), DynFlags(..), PackageFlag(..) )
40 import StaticFlags ( opt_Static )
41 import Config ( cProjectVersion )
42 import Name ( Name, nameModule_maybe )
46 import Maybes ( expectJust, MaybeErr(..) )
50 #if __GLASGOW_HASKELL__ < 603
51 import Compat.Directory ( getAppUserDataDirectory )
54 import System.Environment ( getEnv )
55 import Distribution.InstalledPackageInfo
56 import Distribution.Package
57 import Distribution.Version
59 import ErrUtils ( debugTraceMsg, putMsg, Message )
61 import System.Directory
65 import Control.Exception ( throwDyn )
67 -- ---------------------------------------------------------------------------
70 -- Package state is all stored in DynFlags, including the details of
71 -- all packages, which packages are exposed, and which modules they
74 -- The package state is computed by initPackages, and kept in DynFlags.
76 -- * -package <pkg> causes <pkg> to become exposed, and all other packages
77 -- with the same name to become hidden.
79 -- * -hide-package <pkg> causes <pkg> to become hidden.
81 -- * Let exposedPackages be the set of packages thus exposed.
82 -- Let depExposedPackages be the transitive closure from exposedPackages of
83 -- their dependencies.
85 -- * When searching for a module from an preload import declaration,
86 -- only the exposed modules in exposedPackages are valid.
88 -- * When searching for a module from an implicit import, all modules
89 -- from depExposedPackages are valid.
91 -- * When linking in a comp manager mode, we link in packages the
92 -- program depends on (the compiler knows this list by the
93 -- time it gets to the link step). Also, we link in all packages
94 -- which were mentioned with preload -package flags on the command-line,
95 -- or are a transitive dependency of same, or are "base"/"rts".
96 -- The reason for (b) is that we might need packages which don't
97 -- contain any Haskell modules, and therefore won't be discovered
98 -- by the normal mechanism of dependency tracking.
102 -- When compiling module A, which imports module B, we need to
103 -- know whether B will be in the same DLL as A.
104 -- If it's in the same DLL, we refer to B_f_closure
105 -- If it isn't, we refer to _imp__B_f_closure
106 -- When compiling A, we record in B's Module value whether it's
107 -- in a different DLL, by setting the DLL flag.
109 data PackageState = PackageState {
110 origPkgIdMap :: PackageConfigMap, -- PackageId -> PackageConfig
111 -- The on-disk package database
113 pkgIdMap :: PackageConfigMap, -- PackageId -> PackageConfig
114 -- The exposed flags are adjusted according to -package and
115 -- -hide-package flags, and -ignore-package removes packages.
117 preloadPackages :: [PackageId],
118 -- The packages we're going to link in eagerly. This list
119 -- should be in reverse dependency order; that is, a package
120 -- is always mentioned before the packages it depends on.
122 moduleToPkgConfAll :: UniqFM [(PackageConfig,Bool)] -- ModuleEnv mapping
123 -- Derived from pkgIdMap.
124 -- Maps Module to (pkgconf,exposed), where pkgconf is the
125 -- PackageConfig for the package containing the module, and
126 -- exposed is True if the package exposes that module.
129 -- A PackageConfigMap maps a PackageId to a PackageConfig
130 type PackageConfigMap = UniqFM PackageConfig
132 emptyPackageConfigMap :: PackageConfigMap
133 emptyPackageConfigMap = emptyUFM
135 lookupPackage :: PackageConfigMap -> PackageId -> Maybe PackageConfig
136 lookupPackage = lookupUFM
138 extendPackageConfigMap
139 :: PackageConfigMap -> [PackageConfig] -> PackageConfigMap
140 extendPackageConfigMap pkg_map new_pkgs
141 = foldl add pkg_map new_pkgs
142 where add pkg_map p = addToUFM pkg_map (packageConfigId p) p
144 getPackageDetails :: PackageState -> PackageId -> PackageConfig
145 getPackageDetails dflags ps = expectJust "getPackageDetails" (lookupPackage (pkgIdMap dflags) ps)
147 -- ----------------------------------------------------------------------------
148 -- Loading the package config files and building up the package state
150 -- | Call this after 'DynFlags.parseDynFlags'. It reads the package
151 -- configuration files, and sets up various internal tables of package
152 -- information, according to the package-related flags on the
153 -- command-line (@-package@, @-hide-package@ etc.)
155 -- Returns a list of packages to link in if we're doing dynamic linking.
156 -- This list contains the packages that the user explicitly mentioned with
159 -- 'initPackages' can be called again subsequently after updating the
160 -- 'packageFlags' field of the 'DynFlags', and it will update the
161 -- 'packageState' in 'DynFlags' and return a list of packages to
163 initPackages :: DynFlags -> IO (DynFlags, [PackageId])
164 initPackages dflags = do
165 pkg_db <- case pkgDatabase dflags of
166 Nothing -> readPackageConfigs dflags
168 (pkg_state, preload, this_pkg)
169 <- mkPackageState dflags pkg_db [] (thisPackage dflags)
170 return (dflags{ pkgState = pkg_state,
171 thisPackage = this_pkg },
174 -- -----------------------------------------------------------------------------
175 -- Reading the package database(s)
177 readPackageConfigs :: DynFlags -> IO PackageConfigMap
178 readPackageConfigs dflags = do
179 e_pkg_path <- try (getEnv "GHC_PACKAGE_PATH")
180 system_pkgconfs <- getSystemPackageConfigs dflags
182 let pkgconfs = case e_pkg_path of
183 Left _ -> system_pkgconfs
185 | last cs == "" -> init cs ++ system_pkgconfs
187 where cs = parseSearchPath path
188 -- if the path ends in a separator (eg. "/foo/bar:")
189 -- the we tack on the system paths.
191 -- Read all the ones mentioned in -package-conf flags
192 pkg_map <- foldM (readPackageConfig dflags) emptyPackageConfigMap
193 (reverse pkgconfs ++ extraPkgConfs dflags)
198 getSystemPackageConfigs :: DynFlags -> IO [FilePath]
199 getSystemPackageConfigs dflags = do
200 -- System one always comes first
201 let system_pkgconf = systemPackageConfig dflags
203 -- allow package.conf.d to contain a bunch of .conf files
204 -- containing package specifications. This is an easier way
205 -- to maintain the package database on systems with a package
206 -- management system, or systems that don't want to run ghc-pkg
207 -- to register or unregister packages. Undocumented feature for now.
208 let system_pkgconf_dir = system_pkgconf ++ ".d"
209 system_pkgconf_dir_exists <- doesDirectoryExist system_pkgconf_dir
211 if system_pkgconf_dir_exists
212 then do files <- getDirectoryContents system_pkgconf_dir
213 return [ system_pkgconf_dir ++ '/' : file
215 , isSuffixOf ".conf" file]
218 -- Read user's package conf (eg. ~/.ghc/i386-linux-6.3/package.conf)
219 -- unless the -no-user-package-conf flag was given.
220 -- We only do this when getAppUserDataDirectory is available
222 user_pkgconf <- handle (\_ -> return []) $ do
223 appdir <- getAppUserDataDirectory "ghc"
226 `joinFileName` (TARGET_ARCH ++ '-':TARGET_OS ++ '-':cProjectVersion)
227 `joinFileName` "package.conf"
228 flg <- doesFileExist pkgconf
229 if (flg && dopt Opt_ReadUserPackageConf dflags)
230 then return [pkgconf]
233 return (user_pkgconf ++ system_pkgconfs ++ [system_pkgconf])
237 :: DynFlags -> PackageConfigMap -> FilePath -> IO PackageConfigMap
238 readPackageConfig dflags pkg_map conf_file = do
239 debugTraceMsg dflags 2 (text "Using package config file:" <+> text conf_file)
240 proto_pkg_configs <- loadPackageConfig conf_file
241 let top_dir = topDir dflags
242 pkg_configs1 = mungePackagePaths top_dir proto_pkg_configs
243 pkg_configs2 = maybeHidePackages dflags pkg_configs1
244 return (extendPackageConfigMap pkg_map pkg_configs2)
246 maybeHidePackages :: DynFlags -> [PackageConfig] -> [PackageConfig]
247 maybeHidePackages dflags pkgs
248 | dopt Opt_HideAllPackages dflags = map hide pkgs
251 hide pkg = pkg{ exposed = False }
253 mungePackagePaths :: String -> [PackageConfig] -> [PackageConfig]
254 -- Replace the string "$topdir" at the beginning of a path
255 -- with the current topdir (obtained from the -B option).
256 mungePackagePaths top_dir ps = map munge_pkg ps
258 munge_pkg p = p{ importDirs = munge_paths (importDirs p),
259 includeDirs = munge_paths (includeDirs p),
260 libraryDirs = munge_paths (libraryDirs p),
261 frameworkDirs = munge_paths (frameworkDirs p) }
263 munge_paths = map munge_path
266 | Just p' <- maybePrefixMatch "$topdir" p = top_dir ++ p'
270 -- -----------------------------------------------------------------------------
271 -- Modify our copy of the package database based on a package flag
272 -- (-package, -hide-package, -ignore-package).
275 :: [PackageConfig] -- Initial database
276 -> PackageFlag -- flag to apply
277 -> IO [PackageConfig] -- new database
279 applyPackageFlag pkgs flag =
282 case matchingPackages str pkgs of
283 Nothing -> missingPackageErr str
284 Just (p:ps,qs) -> return (p':ps')
285 where p' = p {exposed=True}
286 ps' = hideAll (pkgName (package p)) (ps++qs)
289 case matchingPackages str pkgs of
290 Nothing -> missingPackageErr str
291 Just (ps,qs) -> return (map hide ps ++ qs)
292 where hide p = p {exposed=False}
295 case matchingPackages str pkgs of
296 Nothing -> return pkgs
297 Just (ps,qs) -> return qs
298 -- missing package is not an error for -ignore-package,
299 -- because a common usage is to -ignore-package P as
300 -- a preventative measure just in case P exists.
302 -- When a package is requested to be exposed, we hide all other
303 -- packages with the same name.
304 hideAll name ps = map maybe_hide ps
305 where maybe_hide p | pkgName (package p) == name = p {exposed=False}
309 matchingPackages :: String -> [PackageConfig]
310 -> Maybe ([PackageConfig], [PackageConfig])
311 matchingPackages str pkgs
312 = case partition (matches str) pkgs of
314 (ps,rest) -> Just (sortByVersion ps, rest)
316 -- A package named on the command line can either include the
317 -- version, or just the name if it is unambiguous.
319 = str == showPackageId (package p)
320 || str == pkgName (package p)
323 pickPackages pkgs strs =
324 [ p | p <- strs, Just (p:ps,_) <- [matchingPackages p pkgs] ]
326 sortByVersion = sortBy (flip (comparing (pkgVersion.package)))
327 comparing f a b = f a `compare` f b
329 -- -----------------------------------------------------------------------------
330 -- Hide old versions of packages
333 -- hide all packages for which there is also a later version
334 -- that is already exposed. This just makes it non-fatal to have two
335 -- versions of a package exposed, which can happen if you install a
336 -- later version of a package in the user database, for example.
338 hideOldPackages :: DynFlags -> [PackageConfig] -> IO [PackageConfig]
339 hideOldPackages dflags pkgs = mapM maybe_hide pkgs
341 | not (exposed p) = return p
342 | (p' : _) <- later_versions = do
343 debugTraceMsg dflags 2 $
344 (ptext SLIT("hiding package") <+>
345 text (showPackageId (package p)) <+>
346 ptext SLIT("to avoid conflict with later version") <+>
347 text (showPackageId (package p')))
348 return (p {exposed=False})
349 | otherwise = return p
350 where myname = pkgName (package p)
351 myversion = pkgVersion (package p)
352 later_versions = [ p | p <- pkgs, exposed p,
354 pkgName pkg == myname,
355 pkgVersion pkg > myversion ]
357 -- -----------------------------------------------------------------------------
362 -> [PackageConfig] -- database
363 -> [PackageIdentifier] -- preload packages
364 -> PackageId -- this package
365 -> IO ([PackageConfig],
369 findWiredInPackages dflags pkgs preload this_package = do
371 -- Now we must find our wired-in packages, and rename them to
372 -- their canonical names (eg. base-1.0 ==> base).
375 wired_in_pkgids = [ basePackageId,
380 wired_in_names = map packageIdString wired_in_pkgids
382 -- find which package corresponds to each wired-in package
383 -- delete any other packages with the same name
384 -- update the package and any dependencies to point to the new
387 -- When choosing which package to map to a wired-in package
388 -- name, we prefer exposed packages, and pick the latest
389 -- version. To override the default choice, -hide-package
390 -- could be used to hide newer versions.
392 findWiredInPackage :: [PackageConfig] -> String
393 -> IO (Maybe PackageIdentifier)
394 findWiredInPackage pkgs wired_pkg =
395 let all_ps = [ p | p <- pkgs, pkgName (package p) == wired_pkg ] in
396 case filter exposed all_ps of
399 many -> pick (head (sortByVersion many))
400 many -> pick (head (sortByVersion many))
403 debugTraceMsg dflags 2 $
404 ptext SLIT("wired-in package ")
406 <> ptext SLIT(" not found.")
409 debugTraceMsg dflags 2 $
410 ptext SLIT("wired-in package ")
412 <> ptext SLIT(" mapped to ")
413 <> text (showPackageId (package pkg))
414 return (Just (package pkg))
417 mb_wired_in_ids <- mapM (findWiredInPackage pkgs) wired_in_names
419 wired_in_ids = catMaybes mb_wired_in_ids
421 deleteOtherWiredInPackages pkgs = filter ok pkgs
422 where ok p = pkgName (package p) `notElem` wired_in_names
423 || package p `elem` wired_in_ids
425 updateWiredInDependencies pkgs = map upd_pkg pkgs
426 where upd_pkg p = p{ package = upd_pid (package p),
427 depends = map upd_pid (depends p) }
429 upd_pid pid = case filter (== pid) wired_in_ids of
431 (x:_) -> x{ pkgVersion = Version [] [] }
433 pkgs1 = deleteOtherWiredInPackages pkgs
435 pkgs2 = updateWiredInDependencies pkgs1
437 preload1 = map upd_pid preload
439 -- we must return an updated thisPackage, just in case we
440 -- are actually compiling one of the wired-in packages
441 Just old_this_pkg = unpackPackageId this_package
442 new_this_pkg = mkPackageId (upd_pid old_this_pkg)
444 return (pkgs2, preload1, new_this_pkg)
446 -- -----------------------------------------------------------------------------
448 -- Eliminate any packages which have dangling dependencies (
449 -- because the dependency was removed by -ignore-package).
454 -> [PackageId] -- ignored packages
455 -> IO [PackageConfig]
457 elimDanglingDeps dflags pkgs ignored =
458 case partition (not.null.snd) (map (getDanglingDeps pkgs ignored) pkgs) of
459 ([],ps) -> return (map fst ps)
462 elimDanglingDeps dflags (map fst qs)
463 (ignored ++ map packageConfigId (map fst ps))
465 reportElim (p, deps) =
466 debugTraceMsg dflags 2 $
467 (ptext SLIT("package") <+> pprPkg p <+>
468 ptext SLIT("will be ignored due to missing dependencies:") $$
469 nest 2 (hsep (map (text.showPackageId) deps)))
471 getDanglingDeps pkgs ignored p = (p, filter dangling (depends p))
472 where dangling pid = mkPackageId pid `elem` ignored
474 -- -----------------------------------------------------------------------------
475 -- When all the command-line options are in, we can process our package
476 -- settings and populate the package state.
480 -> PackageConfigMap -- initial database
481 -> [PackageId] -- preloaded packages
482 -> PackageId -- this package
484 [PackageId], -- new packages to preload
485 PackageId) -- this package, might be modified if the current
487 -- package is a wired-in package.
489 mkPackageState dflags orig_pkg_db preload0 this_package = do
491 -- Modify the package database according to the command-line flags
492 -- (-package, -hide-package, -ignore-package, -hide-all-packages).
494 let flags = reverse (packageFlags dflags)
495 let pkgs0 = eltsUFM orig_pkg_db
496 pkgs1 <- foldM applyPackageFlag pkgs0 flags
498 -- Here we build up a set of the packages mentioned in -package
499 -- flags on the command line; these are called the "preload"
500 -- packages. we link these packages in eagerly. The preload set
501 -- should contain at least rts & base, which is why we pretend that
502 -- the command line contains -package rts & -package base.
504 let new_preload_packages =
505 map package (pickPackages pkgs0 [ p | ExposePackage p <- flags ])
507 -- hide packages that are subsumed by later versions
508 pkgs2 <- hideOldPackages dflags pkgs1
510 -- sort out which packages are wired in
511 (pkgs3, preload1, new_this_pkg)
512 <- findWiredInPackages dflags pkgs2 new_preload_packages this_package
514 let ignored = map packageConfigId $
515 pickPackages pkgs0 [ p | IgnorePackage p <- flags ]
516 pkgs <- elimDanglingDeps dflags pkgs3 ignored
518 let pkg_db = extendPackageConfigMap emptyPackageConfigMap pkgs
519 pkgids = map packageConfigId pkgs
521 -- add base & rts to the preload packages
522 basicLinkedPackages = filter (flip elemUFM pkg_db)
523 [basePackageId,rtsPackageId]
524 preload2 = nub (basicLinkedPackages ++ map mkPackageId preload1)
526 -- Close the preload packages with their dependencies
527 dep_preload <- closeDeps pkg_db (zip preload2 (repeat Nothing))
528 let new_dep_preload = filter (`notElem` preload0) dep_preload
530 let pstate = PackageState{ preloadPackages = dep_preload,
531 origPkgIdMap = orig_pkg_db,
533 moduleToPkgConfAll = mkModuleMap pkg_db
536 return (pstate, new_dep_preload, new_this_pkg)
539 -- -----------------------------------------------------------------------------
540 -- Make the mapping from module to package info
544 -> UniqFM [(PackageConfig, Bool)]
545 mkModuleMap pkg_db = foldr extend_modmap emptyUFM pkgids
547 pkgids = map packageConfigId (eltsUFM pkg_db)
549 extend_modmap pkgid modmap =
550 addListToUFM_C (++) modmap
551 [(m, [(pkg, m `elem` exposed_mods)]) | m <- all_mods]
553 pkg = expectJust "mkModuleMap" (lookupPackage pkg_db pkgid)
554 exposed_mods = map mkModuleName (exposedModules pkg)
555 hidden_mods = map mkModuleName (hiddenModules pkg)
556 all_mods = exposed_mods ++ hidden_mods
558 pprPkg :: PackageConfig -> SDoc
559 pprPkg p = text (showPackageId (package p))
561 -- -----------------------------------------------------------------------------
562 -- Extracting information from the packages in scope
564 -- Many of these functions take a list of packages: in those cases,
565 -- the list is expected to contain the "dependent packages",
566 -- i.e. those packages that were found to be depended on by the
567 -- current module/program. These can be auto or non-auto packages, it
568 -- doesn't really matter. The list is always combined with the list
569 -- of preload (command-line) packages to determine which packages to
572 getPackageIncludePath :: DynFlags -> [PackageId] -> IO [String]
573 getPackageIncludePath dflags pkgs = do
574 ps <- getPreloadPackagesAnd dflags pkgs
575 return (nub (filter notNull (concatMap includeDirs ps)))
577 -- includes are in reverse dependency order (i.e. rts first)
578 getPackageCIncludes :: [PackageConfig] -> IO [String]
579 getPackageCIncludes pkg_configs = do
580 return (reverse (nub (filter notNull (concatMap includes pkg_configs))))
582 getPackageLibraryPath :: DynFlags -> [PackageId] -> IO [String]
583 getPackageLibraryPath dflags pkgs = do
584 ps <- getPreloadPackagesAnd dflags pkgs
585 return (nub (filter notNull (concatMap libraryDirs ps)))
587 getPackageLinkOpts :: DynFlags -> [PackageId] -> IO [String]
588 getPackageLinkOpts dflags pkgs = do
589 ps <- getPreloadPackagesAnd dflags pkgs
590 let tag = buildTag dflags
591 rts_tag = rtsBuildTag dflags
593 imp = if opt_Static then "" else "_dyn"
594 libs p = map ((++imp) . addSuffix) (hsLibraries p)
595 ++ hACK_dyn (extraLibraries p)
596 all_opts p = map ("-l" ++) (libs p) ++ ldOptions p
598 suffix = if null tag then "" else '_':tag
599 rts_suffix = if null rts_tag then "" else '_':rts_tag
601 addSuffix rts@"HSrts" = rts ++ rts_suffix
602 addSuffix other_lib = other_lib ++ suffix
604 -- This is a hack that's even more horrible (and hopefully more temporary)
605 -- than the one below [referring to previous splittage of HSbase into chunks
606 -- to work around GNU ld bug]. HSbase_cbits and friends require the _dyn suffix
607 -- for dynamic linking, but not _p or other 'way' suffix. So we just add
608 -- _dyn to extraLibraries if they already have a _cbits suffix.
611 where hack lib | not opt_Static && "_cbits" `isSuffixOf` lib = lib ++ "_dyn"
614 return (concat (map all_opts ps))
616 getPackageExtraCcOpts :: DynFlags -> [PackageId] -> IO [String]
617 getPackageExtraCcOpts dflags pkgs = do
618 ps <- getPreloadPackagesAnd dflags pkgs
619 return (concatMap ccOptions ps)
621 getPackageFrameworkPath :: DynFlags -> [PackageId] -> IO [String]
622 getPackageFrameworkPath dflags pkgs = do
623 ps <- getPreloadPackagesAnd dflags pkgs
624 return (nub (filter notNull (concatMap frameworkDirs ps)))
626 getPackageFrameworks :: DynFlags -> [PackageId] -> IO [String]
627 getPackageFrameworks dflags pkgs = do
628 ps <- getPreloadPackagesAnd dflags pkgs
629 return (concatMap frameworks ps)
631 -- -----------------------------------------------------------------------------
634 -- | Takes a Module, and if the module is in a package returns
635 -- @(pkgconf,exposed)@ where pkgconf is the PackageConfig for that package,
636 -- and exposed is True if the package exposes the module.
637 lookupModuleInAllPackages :: DynFlags -> ModuleName -> [(PackageConfig,Bool)]
638 lookupModuleInAllPackages dflags m =
639 case lookupUFM (moduleToPkgConfAll (pkgState dflags)) m of
643 getPreloadPackagesAnd :: DynFlags -> [PackageId] -> IO [PackageConfig]
644 getPreloadPackagesAnd dflags pkgids =
646 state = pkgState dflags
647 pkg_map = pkgIdMap state
648 preload = preloadPackages state
649 pairs = zip pkgids (repeat Nothing)
651 all_pkgs <- throwErr (foldM (add_package pkg_map) preload pairs)
652 return (map (getPackageDetails state) all_pkgs)
654 -- Takes a list of packages, and returns the list with dependencies included,
655 -- in reverse dependency order (a package appears before those it depends on).
656 closeDeps :: PackageConfigMap -> [(PackageId, Maybe PackageId)]
658 closeDeps pkg_map ps = throwErr (closeDepsErr pkg_map ps)
660 throwErr :: MaybeErr Message a -> IO a
661 throwErr m = case m of
662 Failed e -> throwDyn (CmdLineError (showSDoc e))
663 Succeeded r -> return r
665 closeDepsErr :: PackageConfigMap -> [(PackageId,Maybe PackageId)]
666 -> MaybeErr Message [PackageId]
667 closeDepsErr pkg_map ps = foldM (add_package pkg_map) [] ps
670 add_package :: PackageConfigMap -> [PackageId] -> (PackageId,Maybe PackageId)
671 -> MaybeErr Message [PackageId]
672 add_package pkg_db ps (p, mb_parent)
673 | p `elem` ps = return ps -- Check if we've already added this package
675 case lookupPackage pkg_db p of
676 Nothing -> Failed (missingPackageMsg (packageIdString p) <>
677 missingDependencyMsg mb_parent)
679 -- Add the package's dependents also
680 let deps = map mkPackageId (depends pkg)
681 ps' <- foldM (add_package pkg_db) ps (zip deps (repeat (Just p)))
684 missingPackageErr p = throwDyn (CmdLineError (showSDoc (missingPackageMsg p)))
685 missingPackageMsg p = ptext SLIT("unknown package:") <+> text p
687 missingDependencyMsg Nothing = empty
688 missingDependencyMsg (Just parent)
689 = space <> parens (ptext SLIT("dependency of") <+> ftext (packageIdFS parent))
691 -- -----------------------------------------------------------------------------
693 isDllName :: PackageId -> Name -> Bool
694 isDllName this_pkg name
696 | Just mod <- nameModule_maybe name = modulePackageId mod /= this_pkg
697 | otherwise = False -- no, it is not even an external name
699 -- -----------------------------------------------------------------------------
700 -- Displaying packages
702 dumpPackages :: DynFlags -> IO ()
703 -- Show package info on console, if verbosity is >= 3
705 = do let pkg_map = pkgIdMap (pkgState dflags)
707 vcat (map (text.showInstalledPackageInfo) (eltsUFM pkg_map))