module Main (main) where
import Version ( version, targetOS, targetARCH )
+import Distribution.ModuleName hiding (main)
import Distribution.InstalledPackageInfo hiding (depends)
import Distribution.Compat.ReadP
import Distribution.ParseUtils
-- -----------------------------------------------------------------------------
-- Do the business
-data Force = ForceAll | ForceFiles | NoForce
+data Force = NoForce | ForceFiles | ForceAll | CannotForce
+ deriving (Eq,Ord)
data PackageArg = Id PackageIdentifier | Substring String (String->Bool)
let err_msg = "missing --global-conf option, location of global package.conf unknown\n"
global_conf <-
case [ f | FlagGlobalConfig f <- my_flags ] of
- [] -> do mb_dir <- getExecDir "/bin/ghc-pkg.exe"
+ [] -> do mb_dir <- getLibDir
case mb_dir of
Nothing -> die err_msg
Just dir ->
- do let path1 = dir </> "package.conf"
- path2 = dir </> ".." </> ".." </> ".."
- </> "inplace-datadir"
- </> "package.conf"
- exists1 <- doesFileExist path1
- exists2 <- doesFileExist path2
- if exists1 then return path1
- else if exists2 then return path2
- else die "Can't find package.conf"
+ do let path = dir </> "package.conf"
+ exists <- doesFileExist path
+ unless exists $ die "Can't find package.conf"
+ return path
fs -> return (last fs)
let global_conf_dir = global_conf ++ ".d"
in
return (flag_stack, to_modify)
- db_stack <- mapM readParseDatabase final_stack
+ db_stack <- mapM (readParseDatabase mb_user_conf) final_stack
return (db_stack, to_modify)
-readParseDatabase :: PackageDBName -> IO (PackageDBName,PackageDB)
-readParseDatabase filename = do
- str <- readFile filename `catchIO` \_ -> return emptyPackageConfig
- let packages = map convertPackageInfoIn $ read str
- Exception.evaluate packages
- `catchError` \e->
- die ("error while parsing " ++ filename ++ ": " ++ show e)
- return (filename,packages)
-
-emptyPackageConfig :: String
-emptyPackageConfig = "[]"
+readParseDatabase :: Maybe (PackageDBName,Bool)
+ -> PackageDBName
+ -> IO (PackageDBName,PackageDB)
+readParseDatabase mb_user_conf filename
+ -- the user database (only) is allowed to be non-existent
+ | Just (user_conf,False) <- mb_user_conf, filename == user_conf
+ = return (filename, [])
+ | otherwise
+ = do str <- readFile filename
+ let packages = map convertPackageInfoIn $ read str
+ Exception.evaluate packages
+ `catchError` \e->
+ die ("error while parsing " ++ filename ++ ": " ++ show e)
+ return (filename,packages)
-- -----------------------------------------------------------------------------
-- Registering
pkg <- parsePackageInfo expanded
putStrLn "done."
+ let unversioned_deps = filter (not . realVersion) (depends pkg)
+ unless (null unversioned_deps) $
+ die ("Unversioned dependencies found: " ++
+ unwords (map display unversioned_deps))
+
let truncated_stack = dropWhile ((/= to_modify).fst) db_stack
-- truncate the stack for validation, because we don't allow
-- packages lower in the stack to refer to those higher up.
| otherwise = parens doc
where doc = text (display (package p))
- show_simple db_stack = do
- let showPkg = if FlagNamesOnly `elem` my_flags then display . pkgName
- else display
- pkgs = map showPkg $ sortBy compPkgIdVer $
- map package (allPackagesInStack db_stack)
- when (not (null pkgs)) $
- hPutStrLn stdout $ concat $ intersperse " " pkgs
+ show_simple = simplePackageList my_flags . allPackagesInStack
+
+simplePackageList :: [Flag] -> [InstalledPackageInfo] -> IO ()
+simplePackageList my_flags pkgs = do
+ let showPkg = if FlagNamesOnly `elem` my_flags then display . pkgName
+ else display
+ strs = map showPkg $ sortBy compPkgIdVer $ map package pkgs
+ when (not (null pkgs)) $
+ hPutStrLn stdout $ concat $ intersperse " " strs
-- -----------------------------------------------------------------------------
-- Prints the highest (hidden or exposed) version of a package
(db_stack, _) <- getPkgDatabases True my_flags
-- check behaves like modify for the purposes of deciding which
-- databases to use, because ordering is important.
- let pkgs = allPackagesInStack db_stack
- broken_pkgs = brokenPackages pkgs
- broken_ids = map package broken_pkgs
- broken_why = [ (package p, filter (`elem` broken_ids) (depends p))
- | p <- broken_pkgs ]
- mapM_ (putStrLn . render . show_func) broken_why
- where
- show_func | FlagSimpleOutput `elem` my_flags = show_simple
- | otherwise = show_normal
- show_simple (pid,deps) =
- text (display pid) <> colon
- <+> fsep (punctuate comma (map (text . display) deps))
- show_normal (pid,deps) =
- text "package" <+> text (display pid) <+> text "has missing dependencies:"
- $$ nest 4 (fsep (punctuate comma (map (text . display) deps)))
+ let simple_output = FlagSimpleOutput `elem` my_flags
-brokenPackages :: [InstalledPackageInfo] -> [InstalledPackageInfo]
-brokenPackages pkgs = go [] pkgs
+ let pkgs = allPackagesInStack db_stack
+
+ checkPackage p = do
+ (_,es) <- runValidate $ checkPackageConfig p db_stack False True
+ if null es
+ then return []
+ else do
+ when (not simple_output) $ do
+ reportError ("There are problems in package " ++ display (package p) ++ ":")
+ reportValidateErrors es " " Nothing
+ return ()
+ return [p]
+
+ broken_pkgs <- concat `fmap` mapM checkPackage pkgs
+
+ let filterOut pkgs1 pkgs2 = filter not_in pkgs2
+ where not_in p = package p `notElem` all_ps
+ all_ps = map package pkgs1
+
+ let not_broken_pkgs = filterOut broken_pkgs pkgs
+ (_, trans_broken_pkgs) = closure [] not_broken_pkgs
+ all_broken_pkgs = broken_pkgs ++ trans_broken_pkgs
+
+ when (not (null all_broken_pkgs)) $ do
+ if simple_output
+ then simplePackageList my_flags all_broken_pkgs
+ else do
+ reportError ("\nThe following packages are broken, either because they have a problem\n"++
+ "listed above, or because they depend on a broken package.")
+ mapM_ (hPutStrLn stderr . display . package) all_broken_pkgs
+
+ when (not (null all_broken_pkgs)) $ exitWith (ExitFailure 1)
+
+
+closure :: [InstalledPackageInfo] -> [InstalledPackageInfo]
+ -> ([InstalledPackageInfo], [InstalledPackageInfo])
+closure pkgs db_stack = go pkgs db_stack
where
go avail not_avail =
case partition (depsAvailable avail) not_avail of
- ([], not_avail') -> not_avail'
+ ([], not_avail') -> (avail, not_avail')
(new_avail, not_avail') -> go (new_avail ++ avail) not_avail'
depsAvailable :: [InstalledPackageInfo] -> InstalledPackageInfo
-- we want mutually recursive groups of package to show up
-- as broken. (#1750)
+brokenPackages :: [InstalledPackageInfo] -> [InstalledPackageInfo]
+brokenPackages pkgs = snd (closure [] pkgs)
+
-- -----------------------------------------------------------------------------
-- Manipulating package.conf files
-- Sanity-check a new package config, and automatically build GHCi libs
-- if requested.
+type ValidateError = (Force,String)
+
+newtype Validate a = V { runValidate :: IO (a, [ValidateError]) }
+
+instance Monad Validate where
+ return a = V $ return (a, [])
+ m >>= k = V $ do
+ (a, es) <- runValidate m
+ (b, es') <- runValidate (k a)
+ return (b,es++es')
+
+verror :: Force -> String -> Validate ()
+verror f s = V (return ((),[(f,s)]))
+
+liftIO :: IO a -> Validate a
+liftIO k = V (k >>= \a -> return (a,[]))
+
+-- returns False if we should die
+reportValidateErrors :: [ValidateError] -> String -> Maybe Force -> IO Bool
+reportValidateErrors es prefix mb_force = do
+ oks <- mapM report es
+ return (and oks)
+ where
+ report (f,s)
+ | Just force <- mb_force
+ = if (force >= f)
+ then do reportError (prefix ++ s ++ " (ignoring)")
+ return True
+ else if f < CannotForce
+ then do reportError (prefix ++ s ++ " (use --force to override)")
+ return False
+ else do reportError err
+ return False
+ | otherwise = do reportError err
+ return False
+ where
+ err = prefix ++ s
+
validatePackageConfig :: InstalledPackageInfo
-> PackageDBStack
-> Bool -- auto-ghc-libs
- -> Bool -- update
+ -> Bool -- update, or check
-> Force
-> IO ()
validatePackageConfig pkg db_stack auto_ghci_libs update force = do
+ (_,es) <- runValidate $ checkPackageConfig pkg db_stack auto_ghci_libs update
+ ok <- reportValidateErrors es (display (package pkg) ++ ": ") (Just force)
+ when (not ok) $ exitWith (ExitFailure 1)
+
+checkPackageConfig :: InstalledPackageInfo
+ -> PackageDBStack
+ -> Bool -- auto-ghc-libs
+ -> Bool -- update, or check
+ -> Validate ()
+checkPackageConfig pkg db_stack auto_ghci_libs update = do
checkPackageId pkg
- checkDuplicates db_stack pkg update force
- mapM_ (checkDep db_stack force) (depends pkg)
- checkDuplicateDepends force (depends pkg)
- mapM_ (checkDir force) (importDirs pkg)
- mapM_ (checkDir force) (libraryDirs pkg)
- mapM_ (checkDir force) (includeDirs pkg)
- mapM_ (checkHSLib (libraryDirs pkg) auto_ghci_libs force) (hsLibraries pkg)
+ checkDuplicates db_stack pkg update
+ mapM_ (checkDep db_stack) (depends pkg)
+ checkDuplicateDepends (depends pkg)
+ mapM_ (checkDir "import-dirs") (importDirs pkg)
+ mapM_ (checkDir "library-dirs") (libraryDirs pkg)
+ mapM_ (checkDir "include-dirs") (includeDirs pkg)
+ checkModules pkg
+ mapM_ (checkHSLib (libraryDirs pkg) auto_ghci_libs) (hsLibraries pkg)
-- ToDo: check these somehow?
-- extra_libraries :: [String],
-- c_includes :: [String],
-- end up with a package id that cannot be parsed. This will lead to
-- difficulties when the user wants to refer to the package later, so
-- we check that the package id can be parsed properly here.
-checkPackageId :: InstalledPackageInfo -> IO ()
+checkPackageId :: InstalledPackageInfo -> Validate ()
checkPackageId ipi =
let str = display (package ipi) in
case [ x :: PackageIdentifier | (x,ys) <- readP_to_S parse str, all isSpace ys ] of
[_] -> return ()
- [] -> die ("invalid package identifier: " ++ str)
- _ -> die ("ambiguous package identifier: " ++ str)
+ [] -> verror CannotForce ("invalid package identifier: " ++ str)
+ _ -> verror CannotForce ("ambiguous package identifier: " ++ str)
-checkDuplicates :: PackageDBStack -> InstalledPackageInfo -> Bool -> Force -> IO ()
-checkDuplicates db_stack pkg update force = do
+checkDuplicates :: PackageDBStack -> InstalledPackageInfo -> Bool -> Validate ()
+checkDuplicates db_stack pkg update = do
let
pkgid = package pkg
(_top_db_name, pkgs) : _ = db_stack
-- Check whether this package id already exists in this DB
--
when (not update && (pkgid `elem` map package pkgs)) $
- die ("package " ++ display pkgid ++ " is already installed")
+ verror CannotForce $
+ "package " ++ display pkgid ++ " is already installed"
let
uncasep = map toLower . display
dups = filter ((== uncasep pkgid) . uncasep) (map package pkgs)
- when (not update && not (null dups)) $ dieOrForceAll force $
+ when (not update && not (null dups)) $ verror ForceAll $
"Package names may be treated case-insensitively in the future.\n"++
"Package " ++ display pkgid ++
" overlaps with: " ++ unwords (map display dups)
-checkDir :: Force -> String -> IO ()
-checkDir force d
+checkDir :: String -> String -> Validate ()
+checkDir thisfield d
| "$topdir" `isPrefixOf` d = return ()
| "$httptopdir" `isPrefixOf` d = return ()
-- can't check these, because we don't know what $(http)topdir is
| otherwise = do
- there <- doesDirectoryExist d
- when (not there)
- (dieOrForceFile force (d ++ " doesn't exist or isn't a directory"))
+ there <- liftIO $ doesDirectoryExist d
+ when (not there) $
+ verror ForceFiles (thisfield ++ ": " ++ d ++ " doesn't exist or isn't a directory")
-checkDep :: PackageDBStack -> Force -> PackageIdentifier -> IO ()
-checkDep db_stack force pkgid
+checkDep :: PackageDBStack -> PackageIdentifier -> Validate ()
+checkDep db_stack pkgid
| pkgid `elem` pkgids || (not real_version && name_exists) = return ()
- | otherwise = dieOrForceAll force ("dependency " ++ display pkgid
- ++ " doesn't exist")
+ | otherwise = verror ForceAll ("dependency " ++ display pkgid
+ ++ " doesn't exist")
where
-- for backwards compat, we treat 0.0 as a special version,
-- and don't check that it actually exists.
all_pkgs = allPackagesInStack db_stack
pkgids = map package all_pkgs
-checkDuplicateDepends :: Force -> [PackageIdentifier] -> IO ()
-checkDuplicateDepends force deps
+checkDuplicateDepends :: [PackageIdentifier] -> Validate ()
+checkDuplicateDepends deps
| null dups = return ()
- | otherwise = dieOrForceAll force ("package has duplicate dependencies: " ++
+ | otherwise = verror ForceAll ("package has duplicate dependencies: " ++
unwords (map display dups))
where
dups = [ p | (p:_:_) <- group (sort deps) ]
realVersion :: PackageIdentifier -> Bool
realVersion pkgid = versionBranch (pkgVersion pkgid) /= []
-checkHSLib :: [String] -> Bool -> Force -> String -> IO ()
-checkHSLib dirs auto_ghci_libs force lib = do
+checkHSLib :: [String] -> Bool -> String -> Validate ()
+checkHSLib dirs auto_ghci_libs lib = do
let batch_lib_file = "lib" ++ lib ++ ".a"
- bs <- mapM (doesLibExistIn batch_lib_file) dirs
- case [ dir | (exists,dir) <- zip bs dirs, exists ] of
- [] -> dieOrForceFile force ("cannot find " ++ batch_lib_file ++
- " on library path")
- (dir:_) -> checkGHCiLib dirs dir batch_lib_file lib auto_ghci_libs
-
-doesLibExistIn :: String -> String -> IO Bool
-doesLibExistIn lib d
+ m <- liftIO $ doesFileExistOnPath batch_lib_file dirs
+ case m of
+ Nothing -> verror ForceFiles ("cannot find " ++ batch_lib_file ++
+ " on library path")
+ Just dir -> liftIO $ checkGHCiLib dirs dir batch_lib_file lib auto_ghci_libs
+
+doesFileExistOnPath :: String -> [FilePath] -> IO (Maybe FilePath)
+doesFileExistOnPath file path = go path
+ where go [] = return Nothing
+ go (p:ps) = do b <- doesFileExistIn file p
+ if b then return (Just p) else go ps
+
+doesFileExistIn :: String -> String -> IO Bool
+doesFileExistIn lib d
| "$topdir" `isPrefixOf` d = return True
| "$httptopdir" `isPrefixOf` d = return True
- | otherwise = doesFileExist (d ++ '/':lib)
+ | otherwise = doesFileExist (d </> lib)
+
+checkModules :: InstalledPackageInfo -> Validate ()
+checkModules pkg = do
+ mapM_ findModule (exposedModules pkg ++ hiddenModules pkg)
+ where
+ findModule modl = do
+ -- there's no .hi file for GHC.Prim
+ if modl == fromString "GHC.Prim" then return () else do
+ let file = toFilePath modl <.> "hi"
+ m <- liftIO $ doesFileExistOnPath file (importDirs pkg)
+ when (isNothing m) $
+ verror ForceFiles ("file " ++ file ++ " is missing")
checkGHCiLib :: [String] -> String -> String -> String -> Bool -> IO ()
checkGHCiLib dirs batch_lib_dir batch_lib_file lib auto_build
| auto_build = autoBuildGHCiLib batch_lib_dir batch_lib_file ghci_lib_file
| otherwise = do
- bs <- mapM (doesLibExistIn ghci_lib_file) dirs
- case [dir | (exists,dir) <- zip bs dirs, exists] of
- [] -> hPutStrLn stderr ("warning: can't find GHCi lib " ++ ghci_lib_file)
- (_:_) -> return ()
- where
- ghci_lib_file = lib ++ ".o"
+ m <- doesFileExistOnPath ghci_lib_file dirs
+ when (isNothing m && ghci_lib_file /= "HSrts.o") $
+ hPutStrLn stderr ("warning: can't find GHCi lib " ++ ghci_lib_file)
+ where
+ ghci_lib_file = lib <.> "o"
-- automatically build the GHCi version of a batch lib,
-- using ld --whole-archive.
#if defined(darwin_HOST_OS)
r <- rawSystem "ld" ["-r","-x","-o",ghci_lib_file,"-all_load",batch_lib_file]
#elif defined(mingw32_HOST_OS)
- execDir <- getExecDir "/bin/ghc-pkg.exe"
+ execDir <- getLibDir
r <- rawSystem (maybe "" (++"/gcc-lib/") execDir++"ld") ["-r","-x","-o",ghci_lib_file,"--whole-archive",batch_lib_file]
#else
r <- rawSystem "ld" ["-r","-x","-o",ghci_lib_file,"--whole-archive",batch_lib_file]
dieOrForceAll ForceAll s = ignoreError s
dieOrForceAll _other s = dieForcible s
-dieOrForceFile :: Force -> String -> IO ()
-dieOrForceFile ForceAll s = ignoreError s
-dieOrForceFile ForceFiles s = ignoreError s
-dieOrForceFile _other s = dieForcible s
-
ignoreError :: String -> IO ()
-ignoreError s = do hFlush stdout; hPutStrLn stderr (s ++ " (ignoring)")
+ignoreError s = reportError (s ++ " (ignoring)")
+
+reportError :: String -> IO ()
+reportError s = do hFlush stdout; hPutStrLn stderr s
dieForcible :: String -> IO ()
dieForcible s = die (s ++ " (use --force to override)")
unDosifyPath :: FilePath -> FilePath
unDosifyPath xs = subst '\\' '/' xs
-getExecDir :: String -> IO (Maybe String)
+getLibDir :: IO (Maybe String)
+getLibDir = fmap (fmap (</> "lib")) $ getExecDir "/bin/ghc-pkg.exe"
+
-- (getExecDir cmd) returns the directory in which the current
-- executable, which should be called 'cmd', is running
-- So if the full path is /a/b/c/d/e, and you pass "d/e" as cmd,
-- you'll get "/a/b/c" back as the result
-getExecDir cmd
- = allocaArray len $ \buf -> do
- ret <- getModuleFileName nullPtr buf len
- if ret == 0 then return Nothing
- else do s <- peekCString buf
- return (Just (reverse (drop (length cmd)
- (reverse (unDosifyPath s)))))
- where
- len = 2048::Int -- Plenty, PATH_MAX is 512 under Win32.
+getExecDir :: String -> IO (Maybe String)
+getExecDir cmd =
+ getExecPath >>= maybe (return Nothing) removeCmdSuffix
+ where unDosifyPath = subst '\\' '/'
+ initN n = reverse . drop n . reverse
+ removeCmdSuffix = return . Just . initN (length cmd) . unDosifyPath
+
+getExecPath :: IO (Maybe String)
+getExecPath =
+ allocaArray len $ \buf -> do
+ ret <- getModuleFileName nullPtr buf len
+ if ret == 0 then return Nothing
+ else liftM Just $ peekCString buf
+ where len = 2048 -- Plenty, PATH_MAX is 512 under Win32.
+
+foreign import stdcall unsafe "GetModuleFileNameA"
+ getModuleFileName :: Ptr () -> CString -> Int -> IO Int32
-foreign import stdcall unsafe "GetModuleFileNameA"
- getModuleFileName :: Ptr () -> CString -> Int -> IO Int32
#else
-getExecDir :: String -> IO (Maybe String)
-getExecDir _ = return Nothing
+getLibDir :: IO (Maybe String)
+getLibDir = return Nothing
#endif
-----------------------------------------
isInfixOf needle haystack = any (isPrefixOf needle) (tails haystack)
#endif
-catchIO :: IO a -> (Exception.IOException -> IO a) -> IO a
-catchIO = Exception.catch
-
#if mingw32_HOST_OS || mingw32_TARGET_OS
throwIOIO :: Exception.IOException -> IO a
throwIOIO = Exception.throwIO
+
+catchIO :: IO a -> (Exception.IOException -> IO a) -> IO a
+catchIO = Exception.catch
#endif
catchError :: IO a -> (String -> IO a) -> IO a
projects / ghc-hetmet.git / blobdiff