{-# OPTIONS -fglasgow-exts #-}
-
-----------------------------------------------------------------------------
+--
+-- (c) The University of Glasgow 2004.
+--
-- Package management tool
+--
-----------------------------------------------------------------------------
-module Main where
+-- TODO:
+-- - validate modules
+-- - expose/hide
+-- - expanding of variables in new-style package conf
+-- - version manipulation (checking whether old version exists,
+-- hiding old version?)
+
+module Main (main) where
+
+import Version ( version, targetOS, targetARCH )
+import Distribution.InstalledPackageInfo
+import Distribution.Compat.ReadP
+import Distribution.Package
+import Distribution.License
+import Distribution.Version
+import Compat.Directory ( getAppUserDataDirectory )
+import Control.Exception ( catch, throw, evaluate )
+
+import Prelude hiding ( catch )
-import Package
-import Version ( version )
+import Package -- the old package config type
+
+#if __GLASGOW_HASKELL__ < 603
+#include "config.h"
+#endif
#if __GLASGOW_HASKELL__ >= 504
import System.Console.GetOpt
import qualified Exception
#endif
+import Data.Char ( isSpace )
import Monad
import Directory
import System ( getEnv, getArgs, getProgName,
system, exitWith,
ExitCode(..)
)
-import IO
+import IO hiding ( catch )
import List ( isPrefixOf, isSuffixOf )
import ParsePkgConfLite
#endif
#endif
+-- -----------------------------------------------------------------------------
+-- Entry point
+
main :: IO ()
main = do
args <- getArgs
case getOpt Permute flags args of
- (cli,_,[]) | DumpHelp `elem` cli -> do
+ (cli,_,[]) | FlagHelp `elem` cli -> do
prog <- getProgramName
bye (usageInfo (usageHeader prog) flags)
- (cli,_,[]) | DumpVersion `elem` cli ->
- bye copyright
- (cli@(_:_),[],[]) ->
- runit cli
- (_,_,errors) -> do
+ (cli,_,[]) | FlagVersion `elem` cli ->
+ bye ourCopyright
+ (cli@(_:_),nonopts,[]) ->
+ runit cli nonopts
+ (_,_,errors) -> tryOldCmdLine errors args
+
+-- If the new command-line syntax fails, then we try the old. If that
+-- fails too, then we output the original errors and the new syntax
+-- (so the old syntax is still available, but hidden).
+tryOldCmdLine :: [String] -> [String] -> IO ()
+tryOldCmdLine errors args = do
+ case getOpt Permute oldFlags args of
+ (cli@(_:_),[],[]) ->
+ oldRunit cli
+ _failed -> 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)
-
-isAction :: Flag -> Bool
-isAction (Config _) = False
-isAction (Field _) = False
-isAction (Input _) = False
-isAction (AutoGHCiLibs) = False
-isAction (Force) = False
-isAction DefinedName{} = False
-isAction _ = True
+-- -----------------------------------------------------------------------------
+-- Command-line syntax
-copyright :: String
-copyright = "GHC package manager version " ++ version ++ "\n"
-
-usageHeader :: String -> String
-usageHeader prog = "Usage: " ++ prog ++ " [OPTION...]\n"
+data Flag
+ = FlagUser
+ | FlagGlobal
+ | FlagHelp
+ | FlagVersion
+ | FlagConfig FilePath
+ | FlagGlobalConfig FilePath
+ | FlagForce
+ deriving Eq
flags :: [OptDescr Flag]
flags = [
- Option ['f'] ["config-file"] (ReqArg Config "FILE")
- "use the specified package config file",
- Option ['l'] ["list-packages"] (NoArg List)
- "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",
- 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",
- 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)
+ Option [] ["user"] (NoArg FlagUser)
+ "use the current user's package database",
+ Option [] ["global"] (NoArg FlagGlobal)
+ "(default) use the global package database",
+ Option ['f'] ["package-conf"] (ReqArg FlagConfig "FILE")
+ "act upon specified package config file (only)",
+ Option [] ["global-conf"] (ReqArg FlagGlobalConfig "FILE")
+ "location of the global package config",
+ Option [] ["force"] (NoArg FlagForce)
+ "ignore missing dependencies, directories, and libraries",
+ Option ['?'] ["help"] (NoArg FlagHelp)
"display this help and exit",
- Option ['V'] ["version"] (NoArg DumpVersion)
+ Option ['V'] ["version"] (NoArg FlagVersion)
"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
- let err_msg = "missing -f option, location of package.conf unknown\n"
- conf_filenames <-
- case [ f | Config f <- clis ] of
- fs@(_:_) -> return (reverse fs) -- NOTE reverse
+
+ourCopyright :: String
+ourCopyright = "GHC package manager version " ++ version ++ "\n"
+
+usageHeader :: String -> String
+usageHeader prog = substProg prog $
+ "Usage:\n" ++
+ " $p {--help | -?}\n" ++
+ " Produce this usage message.\n" ++
+ "\n" ++
+ " $p register {filename | -} [--user | --global]\n" ++
+ " Register the package using the specified installed package\n" ++
+ " description. The syntax for the latter is given in the $p\n" ++
+ " documentation.\n" ++
+ "\n" ++
+ " $p unregister {pkg-id}\n" ++
+ " Unregister the specified package.\n" ++
+ "\n" ++
+ " $p expose {pkg-id}\n" ++
+ " Expose the specified package.\n" ++
+ "\n" ++
+ " $p hide {pkg-id}\n" ++
+ " Hide the specified package.\n" ++
+ "\n" ++
+ " $p list [--global | --user]\n" ++
+ " List all registered packages, both global and user (unless either\n" ++
+ " --global or --user is specified), and both hidden and exposed.\n" ++
+ "\n" ++
+ " $p describe {pkg-id}\n" ++
+ " Give the registered description for the specified package. The\n" ++
+ " description is returned in precisely the syntax required by $p\n" ++
+ " register.\n" ++
+ "\n" ++
+ " $p field {pkg-id} {field}\n" ++
+ " Extract the specified field of the package description for the\n" ++
+ " specified package.\n"
+
+substProg :: String -> String -> String
+substProg _ [] = []
+substProg prog ('$':'p':xs) = prog ++ substProg prog xs
+substProg prog (c:xs) = c : substProg prog xs
+
+-- -----------------------------------------------------------------------------
+-- Do the business
+
+runit :: [Flag] -> [String] -> IO ()
+runit cli nonopts = do
+ prog <- getProgramName
+ dbs <- getPkgDatabases cli
+ db_stack <- mapM readParseDatabase dbs
+ let
+ force = FlagForce `elem` cli
+ --
+ -- first, parse the command
+ case nonopts of
+ ["register", filename] ->
+ registerPackage filename [] db_stack False False force
+ ["update", filename] ->
+ registerPackage filename [] db_stack False True force
+ ["unregister", pkgid_str] -> do
+ pkgid <- readPkgId pkgid_str
+ unregisterPackage db_stack pkgid
+ ["expose", pkgid_str] -> do
+ pkgid <- readPkgId pkgid_str
+ exposePackage pkgid db_stack
+ ["hide", pkgid_str] -> do
+ pkgid <- readPkgId pkgid_str
+ hidePackage pkgid db_stack
+ ["list"] -> do
+ listPackages db_stack
+ ["describe", pkgid_str] -> do
+ pkgid <- readPkgId pkgid_str
+ describePackage db_stack pkgid
+ ["field", pkgid_str, field] -> do
+ pkgid <- readPkgId pkgid_str
+ describeField db_stack pkgid field
+ [] -> do
+ die ("missing command\n" ++
+ usageInfo (usageHeader prog) flags)
+ (_cmd:_) -> do
+ die ("command-line syntax error\n" ++
+ usageInfo (usageHeader prog) flags)
+
+parseCheck :: ReadP a a -> String -> String -> IO a
+parseCheck parser str what =
+ case readP_to_S parser str of
+ [(x,ys)] | all isSpace ys -> return x
+ _ -> die ("cannot parse \'" ++ str ++ "\' as a " ++ what)
+
+readPkgId :: String -> IO PackageIdentifier
+readPkgId str = parseCheck parsePackageId str "package identifier"
+
+-- -----------------------------------------------------------------------------
+-- Package databases
+
+-- Some commands operate on a single database:
+-- register, unregister, expose, hide
+-- however these commands also check the union of the available databases
+-- in order to check consistency. For example, register will check that
+-- dependencies exist before registering a package.
+--
+-- Some commands operate on multiple databases, with overlapping semantics:
+-- list, describe, field
+
+type PackageDBName = FilePath
+type PackageDB = [InstalledPackageInfo]
+
+type PackageDBStack = [(PackageDBName,PackageDB)]
+ -- A stack of package databases. Convention: head is the topmost
+ -- in the stack. Earlier entries override later one.
+
+-- The output of this function is the list of databases to act upon, with
+-- the "topmost" overlapped database last. The commands which operate on a
+-- single database will use the last one. Commands which operate on multiple
+-- databases will interpret the databases as overlapping.
+getPkgDatabases :: [Flag] -> IO [PackageDBName]
+getPkgDatabases flags = do
+ -- first we determine the location of the global package config. On Windows,
+ -- this is found relative to the ghc-pkg.exe binary, whereas on Unix the
+ -- location is passed to the binary using the --global-config flag by the
+ -- wrapper script.
+ let err_msg = "missing --global-conf option, location of global package.conf unknown\n"
+ global_conf <-
+ case [ f | FlagGlobalConfig f <- flags ] of
[] -> 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 "library_dirs" = return library_dirs
- toField "hs_libraries" = return hs_libraries
- toField "extra_libraries" = return extra_libraries
- toField "include_dirs" = return include_dirs
- toField "c_includes" = return c_includes
- toField "package_deps" = return package_deps
- 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 "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 ]
-
- 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)
-
+ Just dir -> return (dir `joinFileName` "package.conf")
+ fs -> return (last fs)
+
+ -- get the location of the user package database, and create it if necessary
+ appdir <- getAppUserDataDirectory "ghc"
+
+ let
+ subdir = targetARCH ++ '-':targetOS ++ '-':version
+ user_conf = appdir `joinFileName` subdir `joinFileName` "package.conf"
+ b <- doesFileExist user_conf
+ when (not b) $ do
+ putStrLn ("Creating user package database in " ++ user_conf)
+ createParents user_conf
+ writeFile user_conf emptyPackageConfig
+
+ let
+ databases = foldl addDB [global_conf] flags
+
+ -- implement the following rules:
+ -- global database is the default
+ -- --user means overlap with the user database
+ -- --global means reset to just the global database
+ -- -f <file> means overlap with <file>
+ addDB dbs FlagUser = user_conf : dbs
+ addDB dbs FlagGlobal = [global_conf]
+ addDB dbs (FlagConfig f) = f : dbs
+ addDB dbs _ = dbs
+
+ return databases
+
+readParseDatabase :: PackageDBName -> IO (PackageDBName,PackageDB)
+readParseDatabase filename = do
+ str <- readFile filename
+ let packages = read str
+ evaluate packages
+ `catch` \_ -> die (filename ++ ": parse error in package config file\n")
+ return (filename,packages)
+
+emptyPackageConfig :: String
+emptyPackageConfig = "[]"
+
+-- -----------------------------------------------------------------------------
+-- Registering
+
+registerPackage :: FilePath
+ -> [(String,String)] -- defines, ToDo: maybe remove?
+ -> PackageDBStack
+ -> Bool -- auto_ghci_libs
+ -> Bool -- update
+ -> Bool -- force
+ -> IO ()
+registerPackage input defines db_stack auto_ghci_libs update force = do
+ let
+ db_to_operate_on = head db_stack
+ db_filename = fst db_to_operate_on
+ --
+ checkConfigAccess db_filename
-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\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
+ case input of
"-" -> do
- hPutStr stdout "Reading package info from stdin... "
+ putStr "Reading package info from stdin... "
getContents
f -> do
- hPutStr stdout ("Reading package info from " ++ show f)
+ putStr ("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."
- 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)
+
+ pkg <- parsePackageInfo s defines force
+ putStrLn "done."
+
+ validatePackageConfig pkg db_stack auto_ghci_libs update force
+ new_details <- updatePackageDB (snd db_to_operate_on) pkg
+ savePackageConfig db_filename
+ maybeRestoreOldConfig db_filename $
+ writeNewConfig db_filename new_details
+
+parsePackageInfo
+ :: String
+ -> [(String,String)]
+ -> Bool
+ -> IO InstalledPackageInfo
+parsePackageInfo str defines force =
+ case parseInstalledPackageInfo str of
+ Right ok -> return ok
+ Left err -> do
+ old_pkg <- evaluate (parseOnePackageConfig str)
+ `catch` \_ -> parse_failed
+ putStr "Expanding embedded variables... "
+ new_old_pkg <- expandEnvVars old_pkg defines force
+ return (convertOldPackage old_pkg)
+ where
+ parse_failed = die "parse error in package info\n"
+
+convertOldPackage :: PackageConfig -> InstalledPackageInfo
+convertOldPackage
+ Package {
+ name = name,
+ auto = auto,
+ import_dirs = import_dirs,
+ source_dirs = source_dirs,
+ library_dirs = library_dirs,
+ hs_libraries = hs_libraries,
+ extra_libraries = extra_libraries,
+ include_dirs = include_dirs,
+ c_includes = c_includes,
+ package_deps = package_deps,
+ extra_ghc_opts = extra_ghc_opts,
+ extra_cc_opts = extra_cc_opts,
+ extra_ld_opts = extra_ld_opts,
+ framework_dirs = framework_dirs,
+ extra_frameworks= extra_frameworks
+ }
+ = InstalledPackageInfo {
+ package = pkgNameToId name,
+ license = AllRightsReserved,
+ copyright = "",
+ maintainer = "",
+ author = "",
+ stability = "",
+ homepage = "",
+ pkgUrl = "",
+ description = "",
+ category = "",
+ exposed = auto,
+ exposedModules = [],
+ hiddenModules = [],
+ importDirs = import_dirs,
+ libraryDirs = library_dirs,
+ hsLibraries = hs_libraries,
+ extraLibraries = extra_libraries,
+ includeDirs = include_dirs,
+ includes = c_includes,
+ depends = map pkgNameToId package_deps,
+ extraHugsOpts = [],
+ extraCcOpts = extra_cc_opts,
+ extraLdOpts = extra_ld_opts,
+ frameworkDirs = framework_dirs,
+ extraFrameworks = extra_frameworks,
+ haddockInterfaces = [],
+ haddockHTMLs = []
+ }
+
+
+-- Used for converting old versionless package names to new PackageIdentifiers.
+-- "Version [] []" is special: it means "no version" or "any version"
+pkgNameToId :: String -> PackageIdentifier
+pkgNameToId name = PackageIdentifier name (Version [] [])
+
+-- -----------------------------------------------------------------------------
+-- Unregistering
+
+unregisterPackage :: PackageDBStack -> PackageIdentifier -> IO ()
+unregisterPackage [] _ = error "unregisterPackage"
+unregisterPackage ((db_name, pkgs) : _) pkgid = do
+ checkConfigAccess db_name
+ when (pkgid `notElem` map package pkgs)
+ (die (db_name ++ ": package '" ++ showPackageId pkgid
+ ++ "' not found\n"))
+ savePackageConfig db_name
+ maybeRestoreOldConfig db_name $
+ writeNewConfig db_name (filter ((/= pkgid) . package) pkgs)
+
+-- -----------------------------------------------------------------------------
+-- Exposing
+
+exposePackage :: PackageIdentifier -> PackageDBStack -> IO ()
+exposePackage = error "TODO"
+
+-- -----------------------------------------------------------------------------
+-- Hiding
+
+hidePackage :: PackageIdentifier -> PackageDBStack -> IO ()
+hidePackage = error "TODO"
+
+-- -----------------------------------------------------------------------------
+-- Listing packages
+
+listPackages :: PackageDBStack -> IO ()
+listPackages db_confs = do
+ mapM_ show_pkgconf (reverse db_confs)
+ where show_pkgconf (db_name,pkg_confs) =
+ hPutStrLn stdout (render $
+ text (db_name ++ ":") $$ nest 4 packages
+ )
+ where packages = fsep (punctuate comma (map pp_pkg pkg_confs))
+ pp_pkg = text . showPackageId . package
+
+
+-- -----------------------------------------------------------------------------
+-- Describe
+
+describePackage :: PackageDBStack -> PackageIdentifier -> IO ()
+describePackage db_stack pkgid = do
+ p <- findPackage db_stack pkgid
+ putStrLn (showInstalledPackageInfo p)
+
+findPackage :: PackageDBStack -> PackageIdentifier -> IO InstalledPackageInfo
+findPackage db_stack pkgid
+ = case [ p | p <- all_pkgs, pkgid == package p ] of
+ [] -> die ("cannot find package " ++ showPackageId pkgid)
+ (p:ps) -> return p
+ where
+ all_pkgs = concat (map snd db_stack)
+
+-- -----------------------------------------------------------------------------
+-- Field
+
+describeField :: PackageDBStack -> PackageIdentifier -> String -> IO ()
+describeField db_stack pkgid field = do
+ case toField field of
+ Nothing -> die ("unknown field: " ++ field)
+ Just fn -> do
+ p <- findPackage db_stack pkgid
+ putStrLn (fn p)
+
+toField :: String -> Maybe (InstalledPackageInfo -> String)
+-- backwards compatibility:
+toField "import_dirs" = Just $ strList . importDirs
+toField "source_dirs" = Just $ strList . importDirs
+toField "library_dirs" = Just $ strList . libraryDirs
+toField "hs_libraries" = Just $ strList . hsLibraries
+toField "extra_libraries" = Just $ strList . extraLibraries
+toField "include_dirs" = Just $ strList . includeDirs
+toField "c_includes" = Just $ strList . includes
+toField "package_deps" = Just $ strList . map showPackageId. depends
+toField "extra_cc_opts" = Just $ strList . extraCcOpts
+toField "extra_ld_opts" = Just $ strList . extraLdOpts
+toField "framework_dirs" = Just $ strList . frameworkDirs
+toField "extra_frameworks"= Just $ strList . extraFrameworks
+toField s = showInstalledPackageInfoField s
+
+strList :: [String] -> String
+strList = show
+
+-- -----------------------------------------------------------------------------
+-- Manipulating package.conf files
checkConfigAccess :: FilePath -> IO ()
checkConfigAccess filename = do
maybeRestoreOldConfig :: FilePath -> IO () -> IO ()
maybeRestoreOldConfig filename io
- = my_catch io (\e -> do
+ = io `catch` \e -> do
+ hPutStrLn stderr (show e)
hPutStr stdout ("\nWARNING: an error was encountered while the new \n"++
"configuration was being written. Attempting to \n"++
"restore the old configuration... ")
renameFile (filename ++ ".old") filename
hPutStrLn stdout "done."
- my_throw e
- )
+ throw e
-writeNewConfig :: FilePath -> [PackageConfig] -> IO ()
+writeNewConfig :: FilePath -> [InstalledPackageInfo] -> IO ()
writeNewConfig filename packages = do
hPutStr stdout "Writing new package config file... "
h <- openFile filename WriteMode
- hPutStrLn h (dumpPackages packages)
+ hPutStrLn h (show packages)
hClose h
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)
+validatePackageConfig :: InstalledPackageInfo
+ -> PackageDBStack
+ -> Bool -- auto-ghc-libs
+ -> Bool -- update
+ -> Bool -- force
+ -> IO ()
+validatePackageConfig pkg db_stack auto_ghci_libs update force = do
+ checkDuplicates db_stack pkg update
+ mapM_ (checkDep db_stack 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)
-- 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])
+
+
+checkDuplicates :: PackageDBStack -> InstalledPackageInfo -> Bool -> IO ()
+checkDuplicates db_stack pkg update = do
+ let
+ pkgid = package pkg
+
+ (_top_db_name, pkgs) : _ = db_stack
+
+ pkgs_with_same_name =
+ [ p | p <- pkgs, pkgName (package p) == pkgName pkgid]
+ exposed_pkgs_with_same_name =
+ filter exposed pkgs_with_same_name
+ --
+ -- Check whether this package id already exists in this DB
+ --
+ when (not update && (package pkg `elem` map package pkgs)) $
+ die ("package " ++ showPackageId pkgid ++ " is already installed\n")
+ --
+ -- if we are exposing this new package, then check that
+ -- there are no other exposed packages with the same name.
+ --
+ when (not update && exposed pkg && not (null exposed_pkgs_with_same_name)) $
+ die ("trying to register " ++ showPackageId pkgid
+ ++ " as exposed, but "
+ ++ showPackageId (package (head exposed_pkgs_with_same_name))
+ ++ " is also exposed.")
+
checkDir :: Bool -> String -> IO ()
checkDir force d
| 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")
+ (dieOrForce force (d ++ " doesn't exist or isn't a directory\n"))
+
+checkDep :: PackageDBStack -> Bool -> PackageIdentifier -> IO ()
+checkDep db_stack force pkgid
+ | real_version && pkgid `elem` pkgids = return ()
+ | not real_version && pkgName pkgid `elem` pkg_names = return ()
+ | otherwise = dieOrForce force ("dependency " ++ showPackageId pkgid
+ ++ " doesn't exist\n")
where
- pkg_names = concat (map (map name) pkgs)
+ -- for backwards compat, we treat 0.0 as a special version,
+ -- and don't check that it actually exists.
+ real_version = versionBranch (pkgVersion pkgid) /= []
+
+ all_pkgs = concat (map snd db_stack)
+ pkgids = map package all_pkgs
+ pkg_names = map pkgName pkgids
checkHSLib :: [String] -> Bool -> Bool -> String -> IO ()
checkHSLib dirs auto_ghci_libs force lib = do
#endif
hPutStrLn stderr (" done.")
------------------------------------------------------------------------------
-expandEnvVars :: PackageConfig -> [(String, String)] -> Bool -> IO PackageConfig
+-- -----------------------------------------------------------------------------
+-- Updating the DB with the new package.
+
+updatePackageDB
+ :: [InstalledPackageInfo]
+ -> InstalledPackageInfo
+ -> IO [InstalledPackageInfo]
+updatePackageDB pkgs new_pkg = do
+ let
+ is_exposed = exposed new_pkg
+ pkgid = package new_pkg
+ name = pkgName pkgid
+
+ pkgs' = [ maybe_hide p | p <- pkgs, package p /= pkgid ]
+
+ -- When update is on, and we're exposing the new package,
+ -- we hide any packages with the same name (different versions)
+ -- in the current DB. Earlier checks will have failed if
+ -- update isn't on.
+ maybe_hide p
+ | is_exposed && pkgName (package p) == name = p{ exposed = False }
+ | otherwise = p
+ --
+ return (pkgs'++[new_pkg])
+
+-- -----------------------------------------------------------------------------
+-- The old command-line syntax, supported for backwards compatibility
+
+data OldFlag
+ = OF_Config FilePath
+ | OF_Input FilePath
+ | OF_List
+ | OF_ListLocal
+ | OF_Add Bool {- True => replace existing info -}
+ | OF_Remove String | OF_Show String
+ | OF_Field String | OF_AutoGHCiLibs | OF_Force
+ | OF_DefinedName String String
+ | OF_GlobalConfig FilePath
+ deriving (Eq)
+
+isAction :: OldFlag -> Bool
+isAction OF_Config{} = False
+isAction OF_Field{} = False
+isAction OF_Input{} = False
+isAction OF_AutoGHCiLibs{} = False
+isAction OF_Force{} = False
+isAction OF_DefinedName{} = False
+isAction OF_GlobalConfig{} = False
+isAction _ = True
+
+oldFlags :: [OptDescr OldFlag]
+oldFlags = [
+ Option ['f'] ["config-file"] (ReqArg OF_Config "FILE")
+ "use the specified package config file",
+ Option ['l'] ["list-packages"] (NoArg OF_List)
+ "list packages in all config files",
+ Option ['L'] ["list-local-packages"] (NoArg OF_ListLocal)
+ "list packages in the specified config file",
+ Option ['a'] ["add-package"] (NoArg (OF_Add False))
+ "add a new package",
+ Option ['u'] ["update-package"] (NoArg (OF_Add True))
+ "update package with new configuration",
+ Option ['i'] ["input-file"] (ReqArg OF_Input "FILE")
+ "read new package info from specified file",
+ Option ['s'] ["show-package"] (ReqArg OF_Show "NAME")
+ "show the configuration for package NAME",
+ Option [] ["field"] (ReqArg OF_Field "FIELD")
+ "(with --show-package) Show field FIELD only",
+ Option [] ["force"] (NoArg OF_Force)
+ "ignore missing directories/libraries",
+ Option ['r'] ["remove-package"] (ReqArg OF_Remove "NAME")
+ "remove an installed package",
+ Option ['g'] ["auto-ghci-libs"] (NoArg OF_AutoGHCiLibs)
+ "automatically build libs for GHCi (with -a)",
+ Option ['D'] ["define-name"] (ReqArg toDefined "NAME=VALUE")
+ "define NAME as VALUE",
+ Option [] ["global-conf"] (ReqArg OF_GlobalConfig "FILE")
+ "location of the global package config"
+ ]
+ where
+ toDefined str =
+ case break (=='=') str of
+ (nm,[]) -> OF_DefinedName nm []
+ (nm,_:val) -> OF_DefinedName nm val
+
+oldRunit :: [OldFlag] -> IO ()
+oldRunit clis = do
+ let config_flags = [ f | Just f <- map conv clis ]
+
+ conv (OF_GlobalConfig f) = Just (FlagGlobalConfig f)
+ conv (OF_Config f) = Just (FlagConfig f)
+ conv _ = Nothing
+
+ db_names <- getPkgDatabases config_flags
+ db_stack <- mapM readParseDatabase db_names
+
+ let fields = [ f | OF_Field f <- clis ]
+
+ let auto_ghci_libs = any isAuto clis
+ where isAuto OF_AutoGHCiLibs = True; isAuto _ = False
+ input_file = head ([ f | (OF_Input f) <- clis] ++ ["-"])
+
+ force = OF_Force `elem` clis
+
+ defines = [ (nm,val) | OF_DefinedName nm val <- clis ]
+
+ case [ c | c <- clis, isAction c ] of
+ [ OF_List ] -> listPackages db_stack
+ [ OF_ListLocal ] -> listPackages db_stack
+ [ OF_Add upd ] -> registerPackage input_file defines db_stack
+ auto_ghci_libs upd force
+ [ OF_Remove p ] -> unregisterPackage db_stack (pkgNameToId p)
+ [ OF_Show p ]
+ | null fields -> describePackage db_stack (pkgNameToId p)
+ | otherwise -> mapM_ (describeField db_stack (pkgNameToId p)) fields
+ _ -> do prog <- getProgramName
+ die (usageInfo (usageHeader prog) flags)
+
+-- ---------------------------------------------------------------------------
+
+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)
+ nm <- expandString (name pkg)
imp_dirs <- expandStrings (import_dirs pkg)
src_dirs <- expandStrings (source_dirs pkg)
lib_dirs <- expandStrings (library_dirs pkg)
bye s = putStr s >> exitWith ExitSuccess
die :: String -> IO a
-die s = do { hFlush stdout ; hPutStr stderr s; exitWith (ExitFailure 1) }
+die s = do
+ hFlush stdout
+ prog <- getProgramName
+ hPutStr stderr (prog ++ ": " ++ s)
+ exitWith (ExitFailure 1)
dieOrForce :: Bool -> String -> IO ()
dieOrForce force s
| force = do hFlush stdout; hPutStrLn stderr (s ++ " (ignoring)")
| otherwise = die (s ++ "\n")
------------------------------------------------------------------------------
--- Exceptions
-
-#ifndef __GLASGOW_HASKELL__
-
-eval_catch a h = a `seq` return ()
-my_catch = IO.catch
-my_throw = IO.fail
-#else /* GHC */
-
-my_throw = Exception.throw
-#if __GLASGOW_HASKELL__ > 408
-eval_catch = Exception.catch . Exception.evaluate
-my_catch = Exception.catch
-#else
-eval_catch = Exception.catchAll
-my_catch = Exception.catchAllIO
-#endif
+-----------------------------------------------------------------------------
+-- Create a hierarchy of directories
-#endif
+createParents :: FilePath -> IO ()
+createParents dir = do
+ let parent = directoryOf dir
+ b <- doesDirectoryExist parent
+ when (not b) $ do
+ createParents parent
+ createDirectory parent
-----------------------------------------
-- Cut and pasted from ghc/compiler/SysTools
getExecDir :: String -> IO (Maybe String)
getExecDir _ = return Nothing
#endif
+
+-- -----------------------------------------------------------------------------
+-- Utils from Krasimir's FilePath library, copied here for now
+
+directoryOf :: FilePath -> FilePath
+directoryOf = fst.splitFileName
+
+splitFileName :: FilePath -> (String, String)
+splitFileName p = (reverse (path2++drive), reverse fname)
+ where
+#ifdef mingw32_TARGET_OS
+ (path,drive) = break (== ':') (reverse p)
+#else
+ (path,drive) = (reverse p,"")
+#endif
+ (fname,path1) = break isPathSeparator path
+ path2 = case path1 of
+ [] -> "."
+ [_] -> path1 -- don't remove the trailing slash if
+ -- there is only one character
+ (c:path) | isPathSeparator c -> path
+ _ -> path1
+
+joinFileName :: String -> String -> FilePath
+joinFileName "" fname = fname
+joinFileName "." fname = fname
+joinFileName dir fname
+ | isPathSeparator (last dir) = dir++fname
+ | otherwise = dir++pathSeparator:fname
+
+isPathSeparator :: Char -> Bool
+isPathSeparator ch =
+#ifdef mingw32_TARGET_OS
+ ch == '/' || ch == '\\'
+#else
+ ch == '/'
+#endif
+
+pathSeparator :: Char
+#ifdef mingw32_TARGET_OS
+pathSeparator = '\\'
+#else
+pathSeparator = '/'
+#endif
projects / ghc-hetmet.git / commitdiff