diff options
Diffstat (limited to 'CabalHelper/Wrapper.hs')
| -rw-r--r-- | CabalHelper/Wrapper.hs | 36 |
1 files changed, 21 insertions, 15 deletions
diff --git a/CabalHelper/Wrapper.hs b/CabalHelper/Wrapper.hs index 6859222..e320f96 100644 --- a/CabalHelper/Wrapper.hs +++ b/CabalHelper/Wrapper.hs @@ -150,8 +150,9 @@ compileHelper opts cabalVer distdir = withHelperSources $ \chdir -> do compileGlobal chdir = do -- TODO: add option to let user specify custom package-db, relevant when -- using a Cabal compiled from git! - _ <- MaybeT $ find (== cabalVer) <$> listCabalVersions opts - liftIO $ compileWithPkg chdir Nothing + + ver <- MaybeT $ find (sameMajorVersionAs cabalVer) . reverse . sort <$> listCabalVersions opts + liftIO $ compileWithPkg chdir Nothing ver -- | Check if we already compiled this version of cabal into a private -- package-db @@ -160,9 +161,10 @@ compileHelper opts cabalVer distdir = withHelperSources $ \chdir -> do db_exists <- liftIO $ cabalPkgDbExists opts cabalVer case db_exists of False -> mzero - True -> liftIO $ do - db <- cabalPkgDb opts cabalVer - compileWithPkg chdir (Just db) + True -> do + db <- liftIO $ cabalPkgDb opts cabalVer + vers <- MaybeT $ find (sameMajorVersionAs cabalVer) . reverse . sort <$> listCabalVersions' opts (Just db) + liftIO $ compileWithPkg chdir (Just db) vers -- | See if we're in a cabal source tree compileCabalSource :: FilePath -> MaybeT IO (Either ExitCode FilePath) @@ -181,13 +183,14 @@ compileHelper opts cabalVer distdir = withHelperSources $ \chdir -> do compileSandbox chdir = do db <- installCabal opts cabalVer `E.catch` \(SomeException _) -> errorInstallCabal cabalVer distdir - compileWithPkg chdir (Just db) + compileWithPkg chdir (Just db) cabalVer + compileWithCabalTree chdir ver srcDir = compile opts $ Compile chdir (Just srcDir) Nothing ver [] - compileWithPkg chdir mdb = - compile opts $ Compile chdir Nothing mdb cabalVer [cabalPkgId cabalVer] + compileWithPkg chdir mdb ver = + compile opts $ Compile chdir Nothing mdb ver [cabalPkgId ver] cabalPkgId v = "Cabal-" ++ showVersion v @@ -221,9 +224,11 @@ errorInstallCabal cabalVer _distdir = panic $ printf "\ \ $ cabal clean && cabal configure\n\ \ You might also have to install some version of the Cabal to do this:\n\ \ $ cabal install Cabal\n\ -\\n" sver sver +\\n" sver sdep where sver = showVersion cabalVer + sdep = showVersion (majorVer cabalVer)++".*" + data Compile = Compile { cabalHelperSourceDir :: FilePath, @@ -265,7 +270,7 @@ exePath :: Version -> IO FilePath exePath cabalVersion = do outdir <- appDataDir return $ outdir </> "cabal-helper-" ++ showVersion version -- our ver - ++ "-Cabal-" ++ showVersion cabalVersion + ++ "-Cabal-" ++ showVersion (majorVer cabalVersion) cachedExe :: Version -> IO (Maybe FilePath) cachedExe cabalVersion = do @@ -295,7 +300,7 @@ processFailedException fn exe args rv = installCabal :: Options -> Version -> IO FilePath installCabal opts ver = do appdir <- appDataDir - let sver = showVersion ver + let sdep = showVersion (majorVer ver)++".*" hPutStr stderr $ printf "\ \cabal-helper-wrapper: Installing a private copy of Cabal because we couldn't\n\ \find the right version in your global/user package-db, this might take a\n\ @@ -306,9 +311,9 @@ installCabal opts ver = do \\n\ \If you want to avoid this automatic installation altogether install\n\ \version %s of Cabal manually (into your user or global package-db):\n\ -\ $ cabal install Cabal-%s\n\ +\ $ cabal install Cabal --constraint \"Cabal == %s\"\n\ \\n\ -\Building Cabal-%s..." appdir sver sver sver +\Building Cabal %s...\n" appdir sdep sdep sdep db <- createPkgDb opts ver callProcessStderr (Just "/") (cabalProgram opts) $ concat @@ -323,7 +328,8 @@ installCabal opts ver = do , if ghcPkgProgram opts /= ghcPkgProgram defaultOptions then [ "--with-ghc-pkg=" ++ ghcPkgProgram opts ] else [] - , [ "install", "Cabal-"++showVersion ver ] + , [ "install", "Cabal", "--constraint" + , "Cabal == " ++ showVersion (majorVer ver) ++ ".*" ] ] hPutStrLn stderr "done" return db @@ -350,7 +356,7 @@ cabalPkgDb :: Options -> Version -> IO FilePath cabalPkgDb opts ver = do appdir <- appDataDir ghcVer <- ghcVersion opts - return $ appdir </> "Cabal-" ++ showVersion ver ++ "-db-" ++ showVersion ghcVer + return $ appdir </> "Cabal-" ++ showVersion (majorVer ver) ++ "-db-" ++ showVersion ghcVer cabalPkgDbExists :: Options -> Version -> IO Bool cabalPkgDbExists opts ver = do |