haskell-updater (empty) → 1.0.0.0
raw patch · 9 files changed
+1600/−0 lines, 9 filesdep +Cabaldep +basedep +bytestringsetup-changed
Dependencies added: Cabal, base, bytestring, containers, directory, filepath, process
Files
- COPYRIGHT +674/−0
- Distribution/Gentoo/GHC.hs +241/−0
- Distribution/Gentoo/Packages.hs +231/−0
- Distribution/Gentoo/PkgManager.hs +110/−0
- Distribution/Gentoo/Util.hs +29/−0
- Main.hs +256/−0
- Setup.lhs +3/−0
- TODO +11/−0
- haskell-updater.cabal +45/−0
+ COPYRIGHT view
@@ -0,0 +1,674 @@+ GNU GENERAL PUBLIC LICENSE+ Version 3, 29 June 2007++ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>+ Everyone is permitted to copy and distribute verbatim copies+ of this license document, but changing it is not allowed.++ Preamble++ The GNU General Public License is a free, copyleft license for+software and other kinds of works.++ The licenses for most software and other practical works are designed+to take away your freedom to share and change the works. By contrast,+the GNU General Public License is intended to guarantee your freedom to+share and change all versions of a program--to make sure it remains free+software for all its users. We, the Free Software Foundation, use the+GNU General Public License for most of our software; it applies also to+any other work released this way by its authors. You can apply it to+your programs, too.++ When we speak of free software, we are referring to freedom, not+price. 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Of course, your program's commands+might be different; for a GUI interface, you would use an "about box".++ You should also get your employer (if you work as a programmer) or school,+if any, to sign a "copyright disclaimer" for the program, if necessary.+For more information on this, and how to apply and follow the GNU GPL, see+<http://www.gnu.org/licenses/>.++ The GNU General Public License does not permit incorporating your program+into proprietary programs. If your program is a subroutine library, you+may consider it more useful to permit linking proprietary applications with+the library. If this is what you want to do, use the GNU Lesser General+Public License instead of this License. But first, please read+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
+ Distribution/Gentoo/GHC.hs view
@@ -0,0 +1,241 @@+{- |+ Module : Distribution.Gentoo.GHC+ Description : Find GHC-related breakages on Gentoo.+ Copyright : (c) Ivan Lazar Miljenovic 2009+ License : GPL-2 or later+ Maintainer : Ivan.Miljenovic@gmail.com++ This module defines helper functions to find broken packages in+ GHC, or else find packages installed with older versions of GHC.+ -}+module Distribution.Gentoo.GHC+ ( ghcVersion+ , ghcLoc+ , ghcLibDir+ , libFronts+ , oldGhcPkgs+ , brokenPkgs+ ) where++import Distribution.Gentoo.Util+import Distribution.Gentoo.Packages++-- Cabal imports+import Distribution.Simple.PackageIndex( PackageIndex+ , brokenPackages+ , reverseDependencyClosure)+import Distribution.Simple.GHC(getInstalledPackages, configure)+import Distribution.Simple.Program( ProgramConfiguration+ , defaultProgramConfiguration)+import Distribution.Simple.Compiler(PackageDB(GlobalPackageDB))+import Distribution.Simple.Utils(rawSystemStdout)+import Distribution.Verbosity(silent)+import Distribution.Package(PackageIdentifier, packageId)+import Distribution.InstalledPackageInfo( InstalledPackageInfo_+ , installedPackageId)+import Distribution.Text(display)++-- Other imports+import Data.Char(isDigit)+import Data.Either(Either(..), partitionEithers)+import Data.Maybe(Maybe(..), maybe, fromJust)+import qualified Data.Map as Map+import Data.Map(Map)+import qualified Data.ByteString.Char8 as BS+import System.FilePath((</>), takeExtension, pathSeparator)+import System.Directory( canonicalizePath+ , doesDirectoryExist+ , findExecutable)+import Control.Monad(foldM, liftM, unless)++-- -----------------------------------------------------------------------------++-- Common helper utils, etc.++-- Get only the first line of output+rawSysStdOutLine :: FilePath -> [String] -> IO String+rawSysStdOutLine app = liftM (head . lines) . rawSystemStdout silent app++-- Get the first line of output from calling GHC with the given+-- arguments.+ghcRawOut :: [String] -> IO String+ghcRawOut args = ghcLoc >>= flip rawSysStdOutLine args++-- Cheat with using fromJust since we know that GHC must be in $PATH+-- somewhere, probably /usr/bin.+ghcLoc :: IO FilePath+ghcLoc = liftM fromJust $ findExecutable "ghc"++-- The version of GHC installed.+ghcVersion :: IO String+ghcVersion = liftM (dropWhile (not . isDigit)) $ ghcRawOut ["--version"]++-- The directory where GHC has all its libraries, etc.+ghcLibDir :: IO FilePath+ghcLibDir = canonicalizePath =<< ghcRawOut ["--print-libdir"]++-- Return the Gentoo .conf files found in this GHC libdir+confFiles :: FilePath -> IO [FilePath]+confFiles dir = do let gDir = dir </> "gentoo"+ exists <- doesDirectoryExist gDir+ if exists+ then do conts <- getDirectoryContents' gDir+ return $ map (gDir </>)+ $ filter isConf conts+ else return []+ where+ isConf file = takeExtension file == ".conf"++-- Print a list of packages, with a description of what they are.+pkgListPrint :: String -> [Package] -> IO ()+pkgListPrint desc pkgs+ = if null pkgs+ then putStrLn $ unwords ["No", desc, "packages found!\n"]+ else do putStrLn $ unwords ["Found the following"+ , desc, "packages:"]+ printList printPkg pkgs+ putStrLn ""++-- Print a bullet list of values with one value per line.+printList :: (a -> String) -> [a] -> IO ()+printList f = mapM_ (putStrLn . (++) " * " . f)++tryMaybe :: (a -> Maybe b) -> a -> Either a b+tryMaybe f a = maybe (Left a) Right $ f a++-- -----------------------------------------------------------------------------++-- Finding packages installed with other versions of GHC+oldGhcPkgs :: IO [Package]+oldGhcPkgs = do putStrLn "Searching for packages installed with a \+ \different version of GHC."+ thisGhc <- ghcLibDir+ let thisGhc' = BS.pack thisGhc+ -- It would be nice to do this, but we can't assume+ -- some crazy user hasn't deleted one of these dirs+ -- libFronts' <- filterM doesDirectoryExist libFronts+ pkgs <- liftM notGHC+ $ concatMapM (checkLibDir thisGhc') libFronts+ pkgListPrint "old" pkgs+ return pkgs++-- Find packages installed by other versions of GHC in this possible+-- library directory.+checkLibDir :: BSFilePath -> BSFilePath -> IO [Package]+checkLibDir thisGhc libDir = pkgsHaveContent (hasDirMatching wanted)+ where+ wanted dir = isValid dir && (not . isInvalid) dir++ isValid = isGhcLibDir libDir++ -- Invalid if it's this GHC+ isInvalid = BS.isPrefixOf thisGhc++-- A valid GHC library directory starting at libdir has a name of+-- either "ghc" or "ghc-bin", then a hyphen and then a version number.+isGhcLibDir :: BSFilePath -> BSFilePath -> Bool+isGhcLibDir libdir dir = go ghcDirName || go ghcBinDirName+ where+ -- This is hacky because FilePath doesn't work on Bytestrings...+ libdir' = BS.snoc libdir pathSeparator+ ghcDirName = BS.pack "ghc"+ ghcBinDirName = BS.pack "ghc-bin"++ go dn = BS.isPrefixOf ghcDir dir+ -- Any possible version starts with a digit+ && isDigit (BS.index dir ghcDirLen)+ where+ ghcDir = flip BS.snoc '-' $ BS.append libdir' dn+ ghcDirLen = BS.length ghcDir+++-- The possible places GHC could have installed lib directories+libFronts :: [BSFilePath]+libFronts = map BS.pack+ $ do loc <- ["usr", "opt" </> "ghc"]+ lib <- ["lib", "lib64"]+ return $ "/" </> loc </> lib++-- -----------------------------------------------------------------------------++-- Finding broken packages in this install of GHC.+brokenPkgs :: IO [Package]+brokenPkgs = do putStrLn "Searching for Haskell libraries with broken dependencies."+ (pns, cnfs) <- brokenConfs+ unless (null pns)+ $ unknownPackages pns+ (nI, pkgs) <- liftM partitionEithers $ mapM hasFile' cnfs+ unless (null nI)+ $ unknownFiles nI+ let pkgs' = notGHC pkgs+ pkgListPrint "broken" pkgs'+ return pkgs+ where+ hasFile' f = do mp <- hasFile f+ return $ maybe (Left f) Right mp++ unknownPackages ps+ = do putStrLn "\nThe following packages don't seem \+ \to have been installed by your package manager:"+ printList display ps++ unknownFiles fs+ = do putStrLn "\nThe following files are those corresponding \+ \to packages installed by your package manager\n\+ \which can't be matched up to the packages that own them."+ printList id fs++-- .conf files from broken packages of this GHC version+brokenConfs :: IO ([PackageIdentifier], [FilePath])+brokenConfs = do brkn <- getBroken+ -- Check if we actually have to go look up files and+ -- do IO.+ if null brkn+ then return ([], [])+ else do cnfs <- readConf+ return $ partitionEithers+ $ map (matchConf cnfs) brkn++type ConfMap = Map PackageIdentifier FilePath++-- Attempt to match the provided broken package to one of the+-- installed packages.+matchConf :: ConfMap -> PackageIdentifier -> Either PackageIdentifier FilePath+matchConf = tryMaybe . flip Map.lookup++-- Read in all Gentoo .conf files from the current GHC version and+-- create a Map+readConf :: IO ConfMap+readConf = ghcLibDir >>= confFiles >>= foldM addConf Map.empty++-- Add this .conf file to the Map+addConf :: ConfMap -> FilePath -> IO ConfMap+addConf cmp conf = do cnts <- readFile conf+ case (reads cnts) of+ [] -> return cmp+ -- ebuilds that have CABAL_CORE_LIB_GHC_PV set+ -- for this version of GHC will have a .conf+ -- file containing just []+ [([],_)] -> return cmp+ rd -> do let nm = cfNm rd+ return $ Map.insert nm conf cmp++ where+ -- It's not InstalledPackageInfo, as it can't read the modules+ cfNm :: [([InstalledPackageInfo_ String], String)] -> PackageIdentifier+ cfNm = packageId . head . fst . head++-- Obtain GHC info about installed libs, etc.+configureGHC :: IO ProgramConfiguration+configureGHC = liftM snd+ $ configure silent Nothing Nothing defaultProgramConfiguration++-- Return all packages registered with GHC+pkgIndex :: IO PackageIndex+pkgIndex = configureGHC >>= getInstalledPackages silent [GlobalPackageDB]++-- Return the closure of all packages affected by breakage+getBroken :: IO [PackageIdentifier]+getBroken = do ind <- pkgIndex+ let broken = map (installedPackageId . fst) $ brokenPackages ind+ return $ map packageId $ reverseDependencyClosure ind broken
+ Distribution/Gentoo/Packages.hs view
@@ -0,0 +1,231 @@+{- |+ Module : Distribution.Gentoo.Packages+ Description : Dealing with installed packages on Gentoo.+ Copyright : (c) Ivan Lazar Miljenovic, Lennart Kolmodin 2009+ License : GPL-2 or later+ Maintainer : Ivan.Miljenovic@gmail.com++ This module defines helper functions that deal with installed+ packages in Gentoo.+-}+module Distribution.Gentoo.Packages+ ( Package+ , Content+ , notGHC+ , printPkg+ , hasFile+ , pkgsHaveContent+ , hasContentMatching+ , hasDirMatching+ , hasObjMatching+ ) where++import Distribution.Gentoo.Util++import Data.Char(isDigit, isAlphaNum)+import Data.List(delete)+import Data.Maybe(mapMaybe, listToMaybe)+import qualified Data.ByteString.Char8 as BS+import Data.ByteString.Char8(ByteString)+import System.Directory( doesDirectoryExist+ , doesFileExist)+import System.FilePath((</>))+import Control.Monad(filterM, liftM)++-- -----------------------------------------------------------------------------++-- Representation of a cat/pkgname in Gentoo. Note that this is+-- overly simplified.++type Category = String+type Pkg = String -- Package name.+type VerPkg = String -- Package name with version.+type VCatPkg = (Category, VerPkg)+type Slot = String++-- When we are (re-)building packages, we don't care about the+-- version, just the slot.+data Package = Package Category Pkg (Maybe Slot)+ deriving(Eq, Ord, Show, Read)++-- Package equality, ignoring the Slot (i.e. same category and package+-- name).+samePackageAs :: Package -> Package -> Bool+samePackageAs (Package c1 p1 _) (Package c2 p2 _)+ = c1 == c2 && p1 == p2++ghcPkg :: Package+ghcPkg = Package "dev-lang" "ghc" Nothing++ghcBinPkg :: Package+ghcBinPkg = Package "dev-lang" "ghc-bin" Nothing++-- Return all packages that are not a version of GHC.+notGHC :: [Package] -> [Package]+notGHC = filter (\p -> isNot ghcPkg p && isNot ghcBinPkg p)+ where+ isNot p1 = not . samePackageAs p1++-- Pretty-print the Package name based on how PMs expect it+printPkg :: Package -> String+printPkg (Package c p s) = addS cp+ where+ addS = maybe id (flip (++) . (:) ':') s+ cp = c ++ '/' : p++-- Determine which slot the specific version of the package is in and+-- create the appropriate Package value.+toPackage :: VCatPkg -> IO Package+toPackage cp@(c,vp) = do sl <- getSlot cp+ let p = stripVersion vp+ return $ Package c p sl++-- Determine which slot the specific version of the package is in.+getSlot :: VCatPkg -> IO (Maybe Slot)+getSlot cp = do ex <- doesFileExist sFile+ if ex+ then parse+ else return Nothing+ where+ sFile = pkgPath cp </> "SLOT"+ parse = do fl <- readFile sFile+ -- Don't want the trailing newline+ return $ listToMaybe $ lines fl++-- | Remove the version information from the package name.+stripVersion :: VerPkg -> Pkg+stripVersion = concat . takeUntilVer . breakAll partSep+ where+ partSep x = x `elem` ['-', '_']++ -- Only the last bit that matches isVer is the real version bit.+ -- Note that this doesn't check that the last non-version bit is+ -- not a hyphen followed by digits.+ takeUntilVer = concat . init . breakAll isVer++ isVer as = isVerFront (init as) && isAlphaNum (last as)+ isVerFront ('-':as) = all (\a -> isDigit a || a == '.') as+ isVerFront _ = False++pkgPath :: VCatPkg -> FilePath+pkgPath (c,vp) = pkgDBDir </> c </> vp++pkgDBDir :: FilePath+pkgDBDir = "/var/db/pkg"++-- -----------------------------------------------------------------------------++-- Parsing the CONTENTS file of installed packages.++-- Representation of individual lines in a CONTENTS file.+data Content = Dir BSFilePath+ | Obj BSFilePath+ deriving (Eq, Show)++isDir :: Content -> Bool+isDir (Dir _) = True+isDir _ = False++isObj :: Content -> Bool+isObj (Obj _) = True+isObj _ = False++pathOf :: Content -> BSFilePath+pathOf (Dir dir) = dir+pathOf (Obj obj) = obj++-- Searching predicates.++hasContentMatching :: (BSFilePath -> Bool) -> [Content] -> Bool+hasContentMatching p = any p . map pathOf++hasDirMatching :: (BSFilePath -> Bool) -> [Content] -> Bool+hasDirMatching p = hasContentMatching p . filter isDir++hasObjMatching :: (BSFilePath -> Bool) -> [Content] -> Bool+hasObjMatching p = hasContentMatching p . filter isObj++-- Parse the CONTENTS file.+parseContents :: VCatPkg -> IO [Content]+parseContents cp = do ex <- doesFileExist cFile+ if ex+ then parse+ else return []+ where+ cFile = pkgPath cp </> "CONTENTS"++ parse = do lns <- liftM BS.lines $ BS.readFile cFile+ return $ mapMaybe (parseCLine .BS.words) lns++ -- Use unwords of list rather than taking next element because of+ -- how spaces are represented in file names.+ -- This might cause a problem if there is more than a single+ -- space (or a tab) in the filename...+ parseCLine :: [ByteString] -> Maybe Content+ parseCLine (tp:ln)+ | tp == dir = Just . Dir . BS.unwords $ ln+ | tp == obj = Just . Obj . BS.unwords $ dropLastTwo ln+ | otherwise = Nothing+ parseCLine [] = Nothing++ dropLastTwo :: [a] -> [a]+ dropLastTwo = init . init++ obj = BS.pack "obj"+ dir = BS.pack "dir"++-- -----------------------------------------------------------------------------++-- Find the package (if any) that contain this file.+-- Assumes collision protection (i.e. at most one package per file).+hasFile :: FilePath -> IO (Maybe Package)+hasFile fp = liftM listToMaybe $ pkgsHaveContent p+ where+ fp' = BS.pack fp+ p = hasObjMatching ((==) fp')++-- Find which packages have Content information that matches the+-- provided predicate; to be used with the searching predicates+-- above.+pkgsHaveContent :: ([Content] -> Bool) -> IO [Package]+pkgsHaveContent p = do cs <- installedCats'+ cps <- concatMapM (catHasContent p) cs+ mapM toPackage cps++-- Determine if this is a valid Category (such that at least one+-- package in that category has been installed).+isCat :: String -> IO Bool+isCat fp = do isD <- doesDirectoryExist (pkgDBDir </> fp)+ return $ isD && isCat' fp+ where+ isCat' ('.':_) = False+ isCat' "world" = False+ isCat' _ = True++-- Return all Categories known in this system.+installedCats :: IO [Category]+installedCats = filterM isCat =<< getDirectoryContents' pkgDBDir++-- We are most likely to need to look in dev-haskell, so put that+-- first in our list.+installedCats' :: IO [Category]+installedCats' = do cats <- installedCats+ return $ if haskCat `elem` cats+ then haskCat : delete haskCat cats+ else cats+ where+ haskCat = "dev-haskell"++-- Return all packages in this category whose contents match the+-- provided predicate.+catHasContent :: ([Content] -> Bool) -> Category -> IO [VCatPkg]+catHasContent p c = do inDir <- getDirectoryContents' cfp+ let psbl = map ((,) c) inDir+ pkgs <- filterM (doesDirectoryExist . pkgPath) psbl+ filterM (hasContent p) pkgs+ where+ cfp = pkgDBDir </> c++-- Determine if this package matches the predicate.+hasContent :: ([Content] -> Bool) -> VCatPkg -> IO Bool+hasContent p = liftM p . parseContents
+ Distribution/Gentoo/PkgManager.hs view
@@ -0,0 +1,110 @@+{- |+ Module : Distribution.Gentoo.PkgManager+ Description : Using package managers in Gentoo.+ Copyright : (c) Ivan Lazar Miljenovic 2009+ License : GPL-2 or later+ Maintainer : Ivan.Miljenovic@gmail.com++ This module defines ways to use different Gentoo package managers.+ -}+module Distribution.Gentoo.PkgManager+ ( PkgManager+ , definedPMs+ , choosePM+ , defaultPM+ , defaultPMName+ , dummy+ , PMFlag(..)+ , buildCmd+ ) where++import Distribution.Gentoo.Packages++import Data.Char(toLower)+import Data.Maybe(mapMaybe)+import qualified Data.Map as M+import Data.Map(Map)++-- -----------------------------------------------------------------------------++-- | Defines the available Gentoo package managers.+data PkgManager = Portage+ | PkgCore+ | Paludis+ | CustomPM String+ deriving (Eq, Ord, Show, Read)++-- | A dummy package manager used for testing purposes.+dummy :: PkgManager+dummy = CustomPM "echo"++-- | The default package manager.+defaultPM :: PkgManager+defaultPM = pmNameMap M.! defaultPMName++defaultPMName :: String+defaultPMName = "portage"++-- | The names of known package managers.+definedPMs :: [String]+definedPMs = M.keys pmNameMap++pmNameMap :: Map String PkgManager+pmNameMap = M.fromList [ ("portage", Portage)+ , ("pkgcore", PkgCore)+ , ("paludis", Paludis)+ ]++-- | Choose the appropriate PM from the textual representation; throws+-- an error if that PM isn't known.+choosePM :: String -> Either String PkgManager+choosePM pm = maybe (Left pm) Right $ pm' `M.lookup` pmNameMap+ where+ pm' = map toLower pm++pmCommand :: PkgManager -> String+pmCommand Portage = "emerge"+pmCommand PkgCore = "pmerge"+pmCommand Paludis = "paludis"+pmCommand (CustomPM cmd) = cmd++defaultPMFlags :: PkgManager -> [String]+defaultPMFlags Portage = ["--oneshot", "--keep-going"]+defaultPMFlags PkgCore = ["--deep", "--oneshot", "--ignore-failures"]+defaultPMFlags Paludis = [ "--install", "--preserve-world"+ , "--continue-on-failure if-independent"]+defaultPMFlags CustomPM{} = []++buildCmd :: PkgManager -> [PMFlag] -> [Package] -> String+buildCmd pm fs ps = unwords $ pmCommand pm : fs' ++ ps'+ where+ fs' = mapMaybe (flagRep pm) fs ++ defaultPMFlags pm+ ps' = map printPkg ps++-- -----------------------------------------------------------------------------++-- | Different optional flags to be passed to the PM.+data PMFlag = PretendBuild+ | UpdateDeep+ | UpdateAsNeeded+ deriving (Eq, Ord, Show, Read)++flagRep :: PkgManager -> PMFlag -> Maybe String+flagRep Portage = portagePMFlag+flagRep PkgCore = pkgcorePMFlag+flagRep Paludis = paludisPMFlag+flagRep CustomPM{} = const Nothing -- Can't tell how flags would work.++portagePMFlag :: PMFlag -> Maybe String+portagePMFlag PretendBuild = Just "--pretend"+portagePMFlag UpdateDeep = Just "--deep"+portagePMFlag UpdateAsNeeded = Nothing++pkgcorePMFlag :: PMFlag -> Maybe String+pkgcorePMFlag = portagePMFlag -- The options are the same for the 3+ -- current flags.++paludisPMFlag :: PMFlag -> Maybe String+paludisPMFlag PretendBuild = Just "--pretend"+paludisPMFlag UpdateDeep = Just "--dl-upgrade always"+paludisPMFlag UpdateAsNeeded = Just "--dl-upgrade as-needed"
+ Distribution/Gentoo/Util.hs view
@@ -0,0 +1,29 @@+{- |+ Module : Distribution.Gentoo.Util+ Description : Utility functions+ Copyright : (c) Ivan Lazar Miljenovic 2009+ License : GPL-2 or later+ Maintainer : Ivan.Miljenovic@gmail.com++ Common utility functions.+ -}+module Distribution.Gentoo.Util where++import Data.List(groupBy)+import Data.ByteString.Char8(ByteString)+import System.Directory(getDirectoryContents)+import Control.Monad(liftM)++-- Alias used to indicate that this ByteString represents a FilePath+type BSFilePath = ByteString++concatMapM :: (a -> IO [b]) -> [a] -> IO [b]+concatMapM f = liftM concat . mapM f++breakAll :: (a -> Bool) -> [a] -> [[a]]+breakAll p = groupBy (const (not . p))++-- Don't return . or ..+getDirectoryContents' :: FilePath -> IO [FilePath]+getDirectoryContents' dir = do is <- getDirectoryContents dir+ return $ filter (`notElem` [".", ".."]) is
+ Main.hs view
@@ -0,0 +1,256 @@+{- |+ Module : Main+ Description : The haskell-updater executable+ Copyright : (c) Ivan Lazar Miljenovic, Stephan Friedrichs 2009+ License : GPL-2 or later+ Maintainer : Ivan.Miljenovic@gmail.com++ The executable module of haskell-updater, which finds Haskell+ packages to rebuild after a dep upgrade or a GHC upgrade.+-}+module Main where++import Distribution.Gentoo.GHC+import Distribution.Gentoo.Packages+import Distribution.Gentoo.PkgManager++import Data.Either(partitionEithers)+import Data.List(foldl1')+import Data.Version(showVersion)+import qualified Data.Set as Set+import Data.Set(Set)+import qualified Paths_haskell_updater as Paths(version)+import System.Console.GetOpt+import System.Environment(getArgs, getProgName)+import System.Exit(ExitCode(..), exitWith)+import System.IO(hPutStrLn, stderr)+import Control.Monad(liftM, liftM2, unless)+import System.Process(system)++-- -----------------------------------------------------------------------------+-- The overall program.++main :: IO ()+main = uncurry runAction =<< parseArgs++-- -----------------------------------------------------------------------------+-- The possible actions that haskell-updater can perform.++data Action = Help+ | Version+ | Build { targets :: Set BuildTarget }+ -- If anything is added here after Build, MAKE SURE YOU+ -- UPDATE combineActions or it won't always work!+ deriving (Eq, Ord, Show, Read)++defaultAction :: Action+defaultAction = Build $ Set.fromList [GhcUpgrade, DepCheck]++-- Combine all the actions together. If the list is empty, use the+-- defaultAction.+combineAllActions :: [Action] -> Action+combineAllActions = emptyElse defaultAction (foldl1' combineActions)++-- Combine two actions together. If they're both Build blah, merge+-- them; otherwise, pick the lower of the two (i.e. more important).+-- Note that it's safe (at the moment at least) to assume that when+-- the lower of one is a Build that they're both build.+combineActions :: Action -> Action -> Action+combineActions a1 a2 = case (a1 `min` a2) of+ Build{} -> Build $ targets a1 `Set.union` targets a2+ a -> a++runAction :: RunModifier -> Action -> IO a+runAction _ Help = help+runAction _ Version = version+runAction rm (Build ts) = do systemInfo+ ps <- allGetPackages ts+ buildPkgs rm ps++-- -----------------------------------------------------------------------------+-- The possible things to build.++data BuildTarget = GhcUpgrade+ | DepCheck+ deriving (Eq, Ord, Show, Read)++getPackages :: BuildTarget -> IO [Package]+getPackages GhcUpgrade = oldGhcPkgs+getPackages DepCheck = brokenPkgs++getPackages' :: BuildTarget -> IO (Set Package)+getPackages' = liftM Set.fromList . getPackages++allGetPackages :: Set BuildTarget -> IO [Package]+allGetPackages = liftM (Set.toList . Set.unions)+ . mapM getPackages'+ . Set.toList++-- -----------------------------------------------------------------------------+-- How to build packages.++data RunModifier = RM { pkgmgr :: PkgManager+ , flags :: [PMFlag]+ , withCmd :: WithCmd+ }+ deriving (Eq, Ord, Show, Read)++-- At the moment, PrintAndRun is the only option available.+data WithCmd = RunOnly+ | PrintOnly+ | PrintAndRun+ deriving (Eq, Ord, Show, Read)++runCmd :: WithCmd -> String -> IO a+runCmd RunOnly = runCommand+runCmd PrintOnly = success+runCmd PrintAndRun = liftM2 (>>) putStrLn runCommand++runCommand :: String -> IO a+runCommand cmd = system cmd >>= exitWith++buildPkgs :: RunModifier -> [Package] -> IO a+buildPkgs _ [] = success "\nNothing to build!"+buildPkgs rm ps = runCmd (withCmd rm) cmd+ where+ cmd = buildCmd (pkgmgr rm) (flags rm) ps++-- -----------------------------------------------------------------------------+-- Command-line flags++data Flag = HelpFlag+ | VersionFlag+ | PM String+ | Check+ | Upgrade+ | Pretend+ | NoDeep+ deriving (Eq, Ord, Show, Read)++parseArgs :: IO (RunModifier, Action)+parseArgs = do args <- getArgs+ argParser $ getOpt Permute options args++argParser :: ([Flag], [String], [String])+ -> IO (RunModifier, Action)+argParser (fls, oth, []) = do unless (null oth)+ $ putErrLn+ $ unwords $ "Unknown options:" : oth+ unless (null bPms)+ $ putErrLn+ $ unwords $ "Unknown package managers:" : bPms+ return (rm, a)+ where+ (fls', as) = partitionBy flagToAction fls+ a = combineAllActions as+ (opts, pms) = partitionBy flagToPM fls'+ (bPms, pms') = partitionBy choosePM pms+ pm = emptyElse defaultPM last pms'+ opts' = Set.fromList opts+ hasFlag = flip Set.member opts'+ pmFlags = bool id (PretendBuild:) (hasFlag Pretend)+ . return $ bool UpdateDeep UpdateAsNeeded (hasFlag NoDeep)+ rm = RM { pkgmgr = pm+ , flags = pmFlags+ -- We need to get Flags that represent this as well.+ , withCmd = PrintAndRun+ }++argParser (_, _, errs) = die $ unwords $ "Errors in arguments:" : errs++flagToAction :: Flag -> Either Flag Action+flagToAction HelpFlag = Right Help+flagToAction VersionFlag = Right Version+flagToAction Check = Right . Build $ Set.singleton DepCheck+flagToAction Upgrade = Right . Build $ Set.singleton GhcUpgrade+flagToAction f = Left f++flagToPM :: Flag -> Either Flag String+flagToPM (PM pm) = Right pm+flagToPM f = Left f++options :: [OptDescr Flag]+options =+ [ Option ['c'] ["dep-check"] (NoArg Check)+ "Check dependencies of Haskell packages."+ , Option ['u'] ["upgrade"] (NoArg Upgrade)+ "Rebuild Haskell packages after a GHC upgrade."+ , Option ['P'] ["package-manager"] (ReqArg PM "PM")+ $ "Use package manager PM, where PM can be one of:\n"+ ++ pmList ++ defPM+ , Option ['p'] ["pretend"] (NoArg Pretend)+ "Only pretend to build packages."+ , Option [] ["no-deep"] (NoArg NoDeep)+ "Don't pull deep dependencies (--deep with emerge)."+ , Option ['v'] ["version"] (NoArg VersionFlag)+ "Version information."+ , Option ['h', '?'] ["help"] (NoArg HelpFlag)+ "Print this help message."+ ]+ where+ pmList = unlines . map ((++) " * ") $ definedPMs+ defPM = "The last valid value of PM specified is chosen.\n\+ \The default package manager is: " ++ defaultPMName++-- -----------------------------------------------------------------------------+-- Printing information.++help :: IO a+help = progInfo >>= success++version :: IO a+version = fmap (++ '-' : showVersion Paths.version) getProgName >>= success++err :: String -> IO a+err msg = liftM addMsg progInfo >>= die+ where+ addMsg str = msg ++ "\n\n"++ str++progInfo :: IO String+progInfo = do pName <- getProgName+ return $ usageInfo (header pName) options+ where+ header pName = pName ++ " -- Find and rebuild packages broken due to either:\n\+ \ * GHC upgrade\n\+ \ * Haskell dependency upgrade\n\+ \ Default action is to do both.\n\+ \\n\+ \Usage: " ++ pName ++ " [Option]\n\+ \\n\+ \\n\+ \Options:"++systemInfo :: IO ()+systemInfo = do ver <- ghcVersion+ pName <- getProgName+ pLoc <- ghcLoc+ libDir <- ghcLibDir+ putStrLn $ "Running " ++ pName ++ " using GHC " ++ ver+ putStrLn $ " * Executable: " ++ pLoc+ putStrLn $ " * Library directory: " ++ libDir+ putStrLn ""++-- -----------------------------------------------------------------------------+-- Utility functions++success :: String -> IO a+success msg = do putStrLn msg+ exitWith ExitSuccess++die :: String -> IO a+die msg = do putErrLn msg+ exitWith (ExitFailure 1)++putErrLn :: String -> IO ()+putErrLn = hPutStrLn stderr++bool :: a -> a -> Bool -> a+bool f t b = if b then t else f++partitionBy :: (a -> Either l r) -> [a] -> ([l], [r])+partitionBy f = partitionEithers . map f++-- If the list is empty, return the provided value; otherwise use the function.+emptyElse :: b -> ([a] -> b) -> [a] -> b+emptyElse e _ [] = e+emptyElse _ f as = f as
+ Setup.lhs view
@@ -0,0 +1,3 @@+#!/usr/bin/env runhaskell+> import Distribution.Simple+> main = defaultMain
+ TODO view
@@ -0,0 +1,11 @@+* Allow user-defined PMs (in case they have custom scripts, etc.)++* Have the option to spit out the PM command to be used instead of using it.++* Pretty colours in output?++* Detect packages that are installed but not registered with GHC.+ This is for cases where GHC was re-built but packages were not+ properly re-registered.++* Add an --info option to give us information on haskell-packages, etc.
+ haskell-updater.cabal view
@@ -0,0 +1,45 @@+Name: haskell-updater+Homepage: http://haskell.org/haskellwiki/Gentoo#haskell-updater+Version: 1.0.0.0+Synopsis: Rebuild Haskell dependencies in Gentoo+Description: haskell-updater rebuilds Haskell packages on Gentoo+ after a GHC upgrade or a dependency upgrade.++ haskell-updater is written so as to use only+ GHC's boot libraries so as to have no external+ dependencies.++ This version is for GHC-6.12 with Cabal-1.8.+Category: Distribution+License: GPL+License-file: COPYRIGHT+Copyright: (c) Ivan Lazar Miljenovic,+ Lennart Kolmodin,+ Stephan Friedrichs+Author: Ivan Lazar Miljenovic,+ Lennart Kolmodin,+ Stephan Friedrichs+Maintainer: Ivan.Miljenovic@gmail.com+Cabal-Version: >= 1.2+Build-Type: Simple+Extra-Source-Files: TODO++Executable haskell-updater {++ Main-Is: Main.hs+ Other-Modules: Distribution.Gentoo.GHC,+ Distribution.Gentoo.Util,+ Distribution.Gentoo.Packages,+ Distribution.Gentoo.PkgManager,+ Paths_haskell_updater+ Ghc-Options: -Wall+ Ghc-Prof-Options: -auto-all++ Build-Depends: base >= 3 && < 5,+ Cabal >= 1.8 && < 1.9,+ containers < 0.4,+ filepath < 1.2,+ directory < 1.1,+ bytestring < 1.0,+ process < 1.1+}