+{-# OPTIONS -fglasgow-exts #-}
+
-----------------------------------------------------------------------------
--- $Id: Main.hs,v 1.9 2001/04/07 22:30:01 qrczak Exp $
---
-- Package management tool
-----------------------------------------------------------------------------
import Package
-#ifdef __GLASGOW_HASKELL__
-import qualified Exception
-#endif
+#if __GLASGOW_HASKELL__ >= 504
+import System.Console.GetOpt
+import Text.PrettyPrint
+import qualified Control.Exception as Exception
+#else
import GetOpt
import Pretty
+import qualified Exception
+#endif
+
import Monad
import Directory
-import System
+import System ( getEnv, getArgs, getProgName,
+ system, exitWith,
+ ExitCode(..)
+ )
import IO
+import List ( isPrefixOf, isSuffixOf )
+
+import ParsePkgConfLite
+#include "../../includes/config.h"
+
+#ifdef mingw32_HOST_OS
+import Foreign
+
+#if __GLASGOW_HASKELL__ >= 504
+import Foreign.C.String
+#else
+import CString
+#endif
+#endif
+
+main :: IO ()
main = do
args <- getArgs
case getOpt Permute flags args of
- (clis,[],[]) -> runit clis
- (_,_,errors) -> die (concat errors ++
- usageInfo usageHeader flags)
+ (cli,_,[]) | DumpHelp `elem` cli -> do
+ prog <- getProgramName
+ bye (usageInfo (usageHeader prog) flags)
+ (cli,_,[]) | DumpVersion `elem` cli ->
+ bye copyright
+ (cli@(_:_),[],[]) ->
+ runit cli
+ (_,_,errors) -> do
+ prog <- getProgramName
+ die (concat errors ++ usageInfo (usageHeader prog) flags)
+
+data Flag
+ = Config FilePath
+ | Input FilePath
+ | List
+ | ListLocal
+ | Add Bool {- True => replace existing info -}
+ | Remove String | Show String
+ | Field String | AutoGHCiLibs | Force
+ | DefinedName String String
+ | DumpHelp
+ | DumpVersion
+ deriving (Eq)
-data Flag = Config String | List | Add | Remove String | Show String | Field String
-isConfigOrField (Config _) = True
-isConfigOrField (Field _) = True
-isConfigOrField _ = False
+isAction :: Flag -> Bool
+isAction (Config _) = False
+isAction (Field _) = False
+isAction (Input _) = False
+isAction (AutoGHCiLibs) = False
+isAction (Force) = False
+isAction DefinedName{} = False
+isAction _ = True
-usageHeader = "ghc-pkg [OPTION...]"
+copyright :: String
+copyright = "GHC package manager version " ++ version ++ "\n"
+-- hackery to convice cpp to splice GHC_PKG_VERSION into a string
+version :: String
+version = tail "\
+ \ GHC_PKG_VERSION"
+
+usageHeader :: String -> String
+usageHeader prog = "Usage: " ++ prog ++ " [OPTION...]\n"
+
+flags :: [OptDescr Flag]
flags = [
Option ['f'] ["config-file"] (ReqArg Config "FILE")
- "Use the specified package config file",
+ "use the specified package config file",
Option ['l'] ["list-packages"] (NoArg List)
- "List the currently installed packages",
- Option ['a'] ["add-package"] (NoArg Add)
- "Add a new package",
+ "list packages in all config files",
+ Option ['L'] ["list-local-packages"] (NoArg ListLocal)
+ "list packages in the specified config file",
+ Option ['a'] ["add-package"] (NoArg (Add False))
+ "add a new package",
+ Option ['u'] ["update-package"] (NoArg (Add True))
+ "update package with new configuration",
+ Option ['i'] ["input-file"] (ReqArg Input "FILE")
+ "read new package info from specified file",
Option ['s'] ["show-package"] (ReqArg Show "NAME")
- "Show the configuration for package NAME",
+ "show the configuration for package NAME",
Option [] ["field"] (ReqArg Field "FIELD")
"(with --show-package) Show field FIELD only",
+ Option [] ["force"] (NoArg Force)
+ "ignore missing directories/libraries",
Option ['r'] ["remove-package"] (ReqArg Remove "NAME")
- "Remove an installed package"
+ "remove an installed package",
+ Option ['g'] ["auto-ghci-libs"] (NoArg AutoGHCiLibs)
+ "automatically build libs for GHCi (with -a)",
+ Option ['D'] ["define-name"] (ReqArg toDefined "NAME=VALUE")
+ "define NAME as VALUE",
+ Option ['?'] ["help"] (NoArg DumpHelp)
+ "display this help and exit",
+ Option ['V'] ["version"] (NoArg DumpVersion)
+ "output version information and exit"
]
+ where
+ toDefined str =
+ case break (=='=') str of
+ (nm,[]) -> DefinedName nm []
+ (nm,_:val) -> DefinedName nm val
+runit :: [Flag] -> IO ()
runit clis = do
- conf_file <-
+ let err_msg = "missing -f option, location of package.conf unknown\n"
+ conf_filenames <-
case [ f | Config f <- clis ] of
- [] -> die "missing -f option, location of package.conf unknown"
- [f] -> return f
- _ -> die (usageInfo usageHeader flags)
+ fs@(_:_) -> return (reverse fs) -- NOTE reverse
+ [] -> do mb_dir <- getExecDir "/bin/ghc-pkg.exe"
+ case mb_dir of
+ Nothing -> die err_msg
+ Just dir -> return [dir ++ "/package.conf"]
let toField "import_dirs" = return import_dirs
toField "source_dirs" = return source_dirs
toField "extra_ghc_opts" = return extra_ghc_opts
toField "extra_cc_opts" = return extra_cc_opts
toField "extra_ld_opts" = return extra_ld_opts
- toField s = die ("unknown field: `" ++ s ++ "'")
+ toField "framework_dirs" = return framework_dirs
+ toField "extra_frameworks"= return extra_frameworks
+ toField s = die ("unknown field: `" ++ s ++ "'\n")
fields <- mapM toField [ f | Field f <- clis ]
- s <- readFile conf_file
- let details = read s :: [PackageConfig]
- eval_catch details (\_ -> die "parse error in package config file")
-
- case [ c | c <- clis, not (isConfigOrField c) ] of
- [ List ] -> listPackages details
- [ Add ] -> addPackage details conf_file
- [ Remove p ] -> removePackage details conf_file p
- [ Show p ] -> showPackage details conf_file p fields
- _ -> die (usageInfo usageHeader flags)
-
-
-listPackages :: [PackageConfig] -> IO ()
-listPackages details = do
- hPutStr stdout (listPkgs details)
- hPutChar stdout '\n'
- exitWith ExitSuccess
-
-showPackage :: [PackageConfig] -> FilePath -> String
- -> [PackageConfig->[String]] -> IO ()
-showPackage details pkgconf pkg_name fields =
- case [ p | p <- details, name p == pkg_name ] of
- [] -> die ("can't find package `" ++ pkg_name ++ "'")
+ let read_parse_conf filename = do
+ str <- readFile filename
+ let packages = parsePackageConfig str
+ eval_catch packages
+ (\_ -> die (filename ++ ": parse error in package config file\n"))
+
+ pkg_confs <- mapM read_parse_conf conf_filenames
+
+ let conf_filename = head conf_filenames
+ -- this is the file we're going to update: the last one specified
+ -- on the command-line.
+
+ let auto_ghci_libs = any isAuto clis
+ where isAuto AutoGHCiLibs = True; isAuto _ = False
+ input_file = head ([ f | (Input f) <- clis] ++ ["-"])
+
+ force = Force `elem` clis
+
+ defines = [ (nm,val) | DefinedName nm val <- clis ]
+
+ case [ c | c <- clis, isAction c ] of
+ [ List ] -> listPackages pkg_confs conf_filenames
+ [ ListLocal ] -> listPackages [head pkg_confs] [""]
+ [ Add upd ] -> addPackage pkg_confs defines
+ conf_filename input_file
+ auto_ghci_libs upd force
+ [ Remove p ] -> removePackage pkg_confs conf_filename p
+ [ Show p ] -> showPackage pkg_confs conf_filename p fields
+ _ -> do prog <- getProgramName
+ die (usageInfo (usageHeader prog) flags)
+
+
+listPackages :: [[PackageConfig]] -> [FilePath] -> IO ()
+listPackages pkg_confs conf_filenames = do
+ zipWithM_ show_pkgconf pkg_confs conf_filenames
+ where show_pkgconf pkg_conf filename =
+ hPutStrLn stdout (render $
+ if null filename
+ then packages
+ else text (filename ++ ":") $$ nest 4 packages
+ )
+ where packages = fsep (punctuate comma (map (text . name) pkg_conf))
+
+showPackage :: [[PackageConfig]]
+ -> FilePath
+ -> String
+ -> [PackageConfig -> [String]]
+ -> IO ()
+showPackage pkg_confs _ pkg_name fields =
+ case [ p | pkgs <- pkg_confs, p <- pkgs, name p == pkg_name ] of
+ [] -> die ("can't find package `" ++ pkg_name ++ "'\n")
[pkg] | null fields -> hPutStrLn stdout (render (dumpPkgGuts pkg))
| otherwise -> hPutStrLn stdout (render (vcat
- (map (vcat . map text) (map ($pkg) fields))))
- _ -> die "showPackage: internal error"
-
-addPackage :: [PackageConfig] -> FilePath -> IO ()
-addPackage details pkgconf = do
- checkConfigAccess pkgconf
- hPutStr stdout "Reading package info from stdin... "
- s <- getContents
- let new_pkg = read s :: PackageConfig
- eval_catch new_pkg (\_ -> die "parse error in package info")
+ (map (vcat . map text) (map ($ pkg) fields))))
+ _ -> die "showPackage: internal error\n"
+
+addPackage :: [[PackageConfig]] -> [(String, String)]
+ -> FilePath -> FilePath
+ -> Bool -> Bool -> Bool -> IO ()
+addPackage pkg_confs defines
+ filename inputFile
+ auto_ghci_libs updatePkg force = do
+ checkConfigAccess filename
+ s <-
+ case inputFile of
+ "-" -> do
+ hPutStr stdout "Reading package info from stdin... "
+ getContents
+ f -> do
+ hPutStr stdout ("Reading package info from " ++ show f)
+ readFile f
+ let new_pkg = parseOnePackageConfig s
+ eval_catch new_pkg (\_ -> die "parse error in package info\n")
hPutStrLn stdout "done."
- if (name new_pkg `elem` map name details)
- then die ("package `" ++ name new_pkg ++ "' already installed")
- else do
- savePackageConfig pkgconf
- maybeRestoreOldConfig pkgconf $ do
- writeNewConfig pkgconf (details ++ [new_pkg])
- exitWith ExitSuccess
-
-removePackage :: [PackageConfig] -> FilePath -> String -> IO ()
-removePackage details pkgconf pkg = do
- checkConfigAccess pkgconf
- if (pkg `notElem` map name details)
- then die ("package `" ++ pkg ++ "' not installed")
- else do
- savePackageConfig pkgconf
- maybeRestoreOldConfig pkgconf $ do
- writeNewConfig pkgconf (filter ((/= pkg) . name) details)
- exitWith ExitSuccess
+ hPutStr stdout "Expanding embedded variables... "
+ new_exp_pkg <- expandEnvVars new_pkg defines force
+ hPutStrLn stdout "done."
+ new_details <- validatePackageConfig new_exp_pkg pkg_confs
+ auto_ghci_libs updatePkg force
+ savePackageConfig filename
+ maybeRestoreOldConfig filename $
+ writeNewConfig filename new_details
+
+removePackage :: [[PackageConfig]] -> FilePath -> String -> IO ()
+removePackage (packages : _) filename pkgName = do
+ checkConfigAccess filename
+ when (pkgName `notElem` map name packages)
+ (die (filename ++ ": package `" ++ pkgName ++ "' not found\n"))
+ savePackageConfig filename
+ maybeRestoreOldConfig filename $
+ writeNewConfig filename (filter ((/= pkgName) . name) packages)
checkConfigAccess :: FilePath -> IO ()
-checkConfigAccess pkgconf = do
- access <- getPermissions pkgconf
+checkConfigAccess filename = do
+ access <- getPermissions filename
when (not (writable access))
- (die "you don't have permission to modify the package configuration file")
+ (die (filename ++ ": you don't have permission to modify this file\n"))
-maybeRestoreOldConfig :: String -> IO () -> IO ()
-maybeRestoreOldConfig conf_file io
+maybeRestoreOldConfig :: FilePath -> IO () -> IO ()
+maybeRestoreOldConfig filename io
= my_catch io (\e -> do
hPutStr stdout "\nWARNING: an error was encountered while the new \n\
\configuration was being written. Attempting to \n\
\restore the old configuration... "
- renameFile (conf_file ++ ".old") conf_file
+ renameFile (filename ++ ".old") filename
hPutStrLn stdout "done."
my_throw e
)
-writeNewConfig :: String -> [PackageConfig] -> IO ()
-writeNewConfig conf_file details = do
+writeNewConfig :: FilePath -> [PackageConfig] -> IO ()
+writeNewConfig filename packages = do
hPutStr stdout "Writing new package config file... "
- h <- openFile conf_file WriteMode
- hPutStrLn h (dumpPackages details)
+ h <- openFile filename WriteMode
+ hPutStrLn h (dumpPackages packages)
hClose h
hPutStrLn stdout "done."
-savePackageConfig :: String -> IO ()
-savePackageConfig conf_file = do
+savePackageConfig :: FilePath -> IO ()
+savePackageConfig filename = do
hPutStr stdout "Saving old package config file... "
-- mv rather than cp because we've already done an hGetContents
-- on this file so we won't be able to open it for writing
-- unless we move the old one out of the way...
- renameFile conf_file (conf_file ++ ".old")
+ let oldFile = filename ++ ".old"
+ doesExist <- doesFileExist oldFile `catch` (\ _ -> return False)
+ when doesExist (removeFile oldFile `catch` (const $ return ()))
+ catch (renameFile filename oldFile)
+ (\ err -> do
+ hPutStrLn stderr (unwords [ "Unable to rename "
+ , show filename
+ , " to "
+ , show oldFile
+ ])
+ ioError err)
hPutStrLn stdout "done."
-----------------------------------------------------------------------------
+-- Sanity-check a new package config, and automatically build GHCi libs
+-- if requested.
+
+validatePackageConfig :: PackageConfig
+ -> [[PackageConfig]]
+ -> Bool
+ -> Bool
+ -> Bool
+ -> IO [PackageConfig]
+validatePackageConfig pkg pkg_confs@(pkgs:_) auto_ghci_libs updatePkg force = do
+ when (not updatePkg && (name pkg `elem` map name pkgs))
+ (die ("package `" ++ name pkg ++ "' is already installed\n"))
+ mapM_ (checkDep pkg_confs force) (package_deps pkg)
+ mapM_ (checkDir force) (import_dirs pkg)
+ mapM_ (checkDir force) (source_dirs pkg)
+ mapM_ (checkDir force) (library_dirs pkg)
+ mapM_ (checkDir force) (include_dirs pkg)
+ mapM_ (checkHSLib (library_dirs pkg) auto_ghci_libs force) (hs_libraries pkg)
+ -- ToDo: check these somehow?
+ -- extra_libraries :: [String],
+ -- c_includes :: [String],
+ let existing_pkgs
+ | updatePkg = filter ((/=(name pkg)).name) pkgs
+ | otherwise = pkgs
+ return (existing_pkgs ++ [pkg])
+
+checkDir :: Bool -> String -> IO ()
+checkDir force d
+ | "$libdir" `isPrefixOf` d = return ()
+ -- can't check this, because we don't know what $libdir is
+ | otherwise = do
+ there <- doesDirectoryExist d
+ when (not there)
+ (dieOrForce force ("`" ++ d ++ "' doesn't exist or isn't a directory\n"))
+
+checkDep :: [[PackageConfig]] -> Bool -> String -> IO ()
+checkDep pkgs force n
+ | n `elem` pkg_names = return ()
+ | otherwise = dieOrForce force ("dependency `" ++ n ++ "' doesn't exist\n")
+ where
+ pkg_names = concat (map (map name) pkgs)
+
+checkHSLib :: [String] -> Bool -> Bool -> String -> IO ()
+checkHSLib dirs auto_ghci_libs force lib = do
+ let batch_lib_file = "lib" ++ lib ++ ".a"
+ bs <- mapM (doesLibExistIn batch_lib_file) dirs
+ case [ dir | (exists,dir) <- zip bs dirs, exists ] of
+ [] -> dieOrForce force ("cannot find `" ++ batch_lib_file ++
+ "' on library path")
+ (dir:_) -> checkGHCiLib dirs dir batch_lib_file lib auto_ghci_libs
+
+doesLibExistIn :: String -> String -> IO Bool
+doesLibExistIn lib d
+ | "$libdir" `isPrefixOf` d = return True
+ | otherwise = doesFileExist (d ++ '/':lib)
+
+checkGHCiLib :: [String] -> String -> String -> String -> Bool -> IO ()
+checkGHCiLib dirs batch_lib_dir batch_lib_file lib auto_build = do
+ let ghci_lib_file = lib ++ ".o"
+ bs <- mapM (\d -> doesFileExist (d ++ '/':ghci_lib_file)) dirs
+ case [ dir | (exists,dir) <- zip bs dirs, exists ] of
+ [] | auto_build ->
+ autoBuildGHCiLib batch_lib_dir batch_lib_file ghci_lib_file
+ | otherwise ->
+ hPutStrLn stderr ("warning: can't find GHCi lib `"
+ ++ ghci_lib_file ++ "'")
+ (_:_) -> return ()
+
+-- automatically build the GHCi version of a batch lib,
+-- using ld --whole-archive.
+
+autoBuildGHCiLib :: String -> String -> String -> IO ()
+autoBuildGHCiLib dir batch_file ghci_file = do
+ let ghci_lib_file = dir ++ '/':ghci_file
+ batch_lib_file = dir ++ '/':batch_file
+ hPutStr stderr ("building GHCi library `" ++ ghci_lib_file ++ "'...")
+#ifdef darwin_TARGET_OS
+ system("ld -r -x -o " ++ ghci_lib_file ++
+ " -all_load " ++ batch_lib_file)
+#else
+ system("ld -r -x -o " ++ ghci_lib_file ++
+ " --whole-archive " ++ batch_lib_file)
+#endif
+ hPutStrLn stderr (" done.")
+
+-----------------------------------------------------------------------------
+expandEnvVars :: PackageConfig -> [(String, String)] -> Bool -> IO PackageConfig
+expandEnvVars pkg defines force = do
+ -- permit _all_ strings to contain ${..} environment variable references,
+ -- arguably too flexible.
+ nm <- expandString (name pkg)
+ imp_dirs <- expandStrings (import_dirs pkg)
+ src_dirs <- expandStrings (source_dirs pkg)
+ lib_dirs <- expandStrings (library_dirs pkg)
+ hs_libs <- expandStrings (hs_libraries pkg)
+ ex_libs <- expandStrings (extra_libraries pkg)
+ inc_dirs <- expandStrings (include_dirs pkg)
+ c_incs <- expandStrings (c_includes pkg)
+ p_deps <- expandStrings (package_deps pkg)
+ e_g_opts <- expandStrings (extra_ghc_opts pkg)
+ e_c_opts <- expandStrings (extra_cc_opts pkg)
+ e_l_opts <- expandStrings (extra_ld_opts pkg)
+ f_dirs <- expandStrings (framework_dirs pkg)
+ e_frames <- expandStrings (extra_frameworks pkg)
+ return (pkg { name = nm
+ , import_dirs = imp_dirs
+ , source_dirs = src_dirs
+ , library_dirs = lib_dirs
+ , hs_libraries = hs_libs
+ , extra_libraries = ex_libs
+ , include_dirs = inc_dirs
+ , c_includes = c_incs
+ , package_deps = p_deps
+ , extra_ghc_opts = e_g_opts
+ , extra_cc_opts = e_c_opts
+ , extra_ld_opts = e_l_opts
+ , framework_dirs = f_dirs
+ , extra_frameworks= e_frames
+ })
+ where
+ expandStrings :: [String] -> IO [String]
+ expandStrings = liftM concat . mapM expandSpecial
+
+ -- Permit substitutions for list-valued variables (but only when
+ -- they occur alone), e.g., package_deps["${deps}"] where env var
+ -- (say) 'deps' is "base,haskell98,network"
+ expandSpecial :: String -> IO [String]
+ expandSpecial str =
+ let expand f = liftM f $ expandString str
+ in case splitString str of
+ [Var _] -> expand (wordsBy (== ','))
+ _ -> expand (\x -> [x])
+
+ expandString :: String -> IO String
+ expandString = liftM concat . mapM expandElem . splitString
+
+ expandElem :: Elem -> IO String
+ expandElem (String s) = return s
+ expandElem (Var v) = lookupEnvVar v
+
+ lookupEnvVar :: String -> IO String
+ lookupEnvVar nm =
+ case lookup nm defines of
+ Just x | not (null x) -> return x
+ _ ->
+ catch (System.getEnv nm)
+ (\ _ -> do dieOrForce force ("Unable to expand variable " ++
+ show nm)
+ return "")
+
+data Elem = String String | Var String
+
+splitString :: String -> [Elem]
+splitString "" = []
+splitString str =
+ case break (== '$') str of
+ (pre, _:'{':xs) ->
+ case span (/= '}') xs of
+ (var, _:suf) ->
+ (if null pre then id else (String pre :)) (Var var : splitString suf)
+ _ -> [String str] -- no closing brace
+ _ -> [String str] -- no dollar/opening brace combo
+
+-- wordsBy isSpace == words
+wordsBy :: (Char -> Bool) -> String -> [String]
+wordsBy p s = case dropWhile p s of
+ "" -> []
+ s' -> w : wordsBy p s'' where (w,s'') = break p s'
+
+-----------------------------------------------------------------------------
+
+getProgramName :: IO String
+getProgramName = liftM (`withoutSuffix` ".bin") getProgName
+ where str `withoutSuffix` suff
+ | suff `isSuffixOf` str = take (length str - length suff) str
+ | otherwise = str
+
+bye :: String -> IO a
+bye s = putStr s >> exitWith ExitSuccess
die :: String -> IO a
-die s = do { hPutStrLn stderr s; exitWith (ExitFailure 1) }
+die s = do { hFlush stdout ; hPutStr stderr s; exitWith (ExitFailure 1) }
+
+dieOrForce :: Bool -> String -> IO ()
+dieOrForce force s
+ | force = do hFlush stdout; hPutStrLn stderr (s ++ " (ignoring)")
+ | otherwise = die (s ++ "\n")
-----------------------------------------------------------------------------
-- Exceptions
#endif
#endif
+
+-----------------------------------------
+-- Cut and pasted from ghc/compiler/SysTools
+
+#if defined(mingw32_HOST_OS)
+subst a b ls = map (\ x -> if x == a then b else x) ls
+unDosifyPath xs = subst '\\' '/' xs
+
+getExecDir :: String -> IO (Maybe String)
+-- (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.
+
+foreign import stdcall "GetModuleFileNameA" unsafe
+ getModuleFileName :: Ptr () -> CString -> Int -> IO Int32
+#else
+getExecDir :: String -> IO (Maybe String)
+getExecDir _ = return Nothing
+#endif
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