{-# OPTIONS -fglasgow-exts #-}
-----------------------------------------------------------------------------
--- $Id: Main.hs,v 1.31 2002/10/29 10:53:42 simonpj Exp $
+-- $Id: Main.hs,v 1.32 2003/03/25 16:50:18 simonmar Exp $
--
-- Package management tool
-----------------------------------------------------------------------------
runit clis = do
let err_msg = "missing -f option, location of package.conf unknown"
- conf_file <-
+ conf_filenames <-
case [ f | Config f <- clis ] of
- fs@(_:_) -> return (last fs)
+ 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")
+ Just dir -> return [dir ++ "/package.conf"]
let toField "import_dirs" = return import_dirs
toField "source_dirs" = return source_dirs
fields <- mapM toField [ f | Field f <- clis ]
- s <- readFile conf_file
- let packages = parsePackageConfig s
- eval_catch packages (\_ -> die "parse error in package config file")
+ let read_parse_conf filename = do
+ str <- readFile filename
+ let packages = parsePackageConfig str
+ eval_catch packages
+ (\_ -> die (filename ++ ": parse error in package config file"))
+
+ 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
force = Force `elem` clis
case [ c | c <- clis, isAction c ] of
- [ List ] -> listPackages packages
- [ Add upd ] -> addPackage packages conf_file input_file
+ [ List ] -> listPackages pkg_confs conf_filenames
+ [ Add upd ] -> addPackage pkg_confs conf_filename input_file
auto_ghci_libs upd force
- [ Remove p ] -> removePackage packages conf_file p
- [ Show p ] -> showPackage packages conf_file p fields
+ [ Remove p ] -> removePackage pkg_confs conf_filename p
+ [ Show p ] -> showPackage pkg_confs conf_filename p fields
_ -> die (usageInfo usageHeader flags)
-listPackages :: [PackageConfig] -> IO ()
-listPackages packages = hPutStrLn stdout (listPkgs packages)
+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 (vcat
+ [text (filename ++ ":"),
+ nest 4 (fsep (punctuate comma (map (text . name) pkg_conf)))
+ ]))
-showPackage :: [PackageConfig]
+showPackage :: [[PackageConfig]]
-> FilePath
-> String
-> [PackageConfig -> [String]]
-> IO ()
-showPackage packages pkgconf pkg_name fields =
- case [ p | p <- packages, name p == pkg_name ] of
+showPackage pkg_confs filename pkg_name fields =
+ case [ p | pkgs <- pkg_confs, p <- pkgs, name p == pkg_name ] of
[] -> die ("can't find package `" ++ pkg_name ++ "'")
[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 -> FilePath
+addPackage :: [[PackageConfig]] -> FilePath -> FilePath
-> Bool -> Bool -> Bool -> IO ()
-addPackage packages pkgconf inputFile auto_ghci_libs updatePkg force = do
- checkConfigAccess pkgconf
+addPackage pkg_confs filename inputFile auto_ghci_libs updatePkg force = do
+ checkConfigAccess filename
s <-
case inputFile of
"-" -> do
let new_pkg = parseOnePackageConfig s
eval_catch new_pkg (\_ -> die "parse error in package info")
hPutStrLn stdout "done."
- hPutStr stdout "Expanding embedded variables..."
+ hPutStr stdout "Expanding embedded variables... "
new_exp_pkg <- expandEnvVars new_pkg force
hPutStrLn stdout "done."
- new_details <- validatePackageConfig new_exp_pkg packages
+ new_details <- validatePackageConfig new_exp_pkg pkg_confs
auto_ghci_libs updatePkg force
- savePackageConfig pkgconf
- maybeRestoreOldConfig pkgconf $
- writeNewConfig pkgconf new_details
+ savePackageConfig filename
+ maybeRestoreOldConfig filename $
+ writeNewConfig filename new_details
-removePackage :: [PackageConfig] -> FilePath -> String -> IO ()
-removePackage packages pkgconf pkgName = do
- checkConfigAccess pkgconf
+removePackage :: [[PackageConfig]] -> FilePath -> String -> IO ()
+removePackage (packages : _) filename pkgName = do
+ checkConfigAccess filename
when (pkgName `notElem` map name packages)
- (die ("package `" ++ pkgName ++ "' not installed"))
- savePackageConfig pkgconf
- maybeRestoreOldConfig pkgconf $
- writeNewConfig pkgconf (filter ((/= pkgName) . name) packages)
+ (die (filename ++ ": package `" ++ pkgName ++ "' not found"))
+ 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"))
-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 packages = do
+writeNewConfig :: FilePath -> [PackageConfig] -> IO ()
+writeNewConfig filename packages = do
hPutStr stdout "Writing new package config file... "
- h <- openFile conf_file WriteMode
+ 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...
- let oldFile = conf_file ++ ".old"
+ let oldFile = filename ++ ".old"
doesExist <- doesFileExist oldFile `catch` (\ _ -> return False)
when doesExist (removeFile oldFile `catch` (const $ return ()))
- catch (renameFile conf_file oldFile)
+ catch (renameFile filename oldFile)
(\ err -> do
hPutStrLn stderr (unwords [ "Unable to rename "
- , show conf_file
+ , show filename
, " to "
, show oldFile
])
-- if requested.
validatePackageConfig :: PackageConfig
- -> [PackageConfig]
+ -> [[PackageConfig]]
-> Bool
-> Bool
-> Bool
-> IO [PackageConfig]
-validatePackageConfig pkg pkgs auto_ghci_libs updatePkg force = do
+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"))
- mapM_ (checkDep pkgs force) (package_deps pkg)
+ 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)
when (not there)
(dieOrForce force ("`" ++ d ++ "' doesn't exist or isn't a directory"))
-checkDep :: [PackageConfig] -> Bool -> String -> IO ()
+checkDep :: [[PackageConfig]] -> Bool -> String -> IO ()
checkDep pkgs force n
- | n `elem` map name pkgs = return ()
+ | n `elem` pkg_names = return ()
| otherwise = dieOrForce force ("dependency `" ++ n ++ "' doesn't exist")
+ where
+ pkg_names = concat (map (map name) pkgs)
checkHSLib :: [String] -> Bool -> Bool -> String -> IO ()
checkHSLib dirs auto_ghci_libs force lib = do
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