Use the cabal configuration flags where possible when finalizing the PackageDescription.
This commit is contained in:
Rob Everest
parent
274b5d8e1c
commit
2c2e7782d2
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@ -17,7 +17,7 @@ import Language.Haskell.GhcMod.Gap (benchmarkBuildInfo, benchmarkTargets,
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import Language.Haskell.GhcMod.GhcPkg
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import Language.Haskell.GhcMod.Types
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import MonadUtils (MonadIO, liftIO)
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import MonadUtils (liftIO)
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import Control.Applicative ((<$>))
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import qualified Control.Exception as E
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import Control.Monad (filterM)
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@ -73,20 +73,22 @@ includeDirectories cdir wdir dirs = uniqueAndSort (extdirs ++ [cdir,wdir])
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----------------------------------------------------------------
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-- | Parse a cabal file and return a 'PackageDescription'.
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parseCabalFile :: (MonadIO m, Error e, MonadError e m)
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=> FilePath
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parseCabalFile :: (IOish m, MonadError GhcModError m)
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=> Cradle
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-> FilePath
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-> m PackageDescription
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parseCabalFile file = do
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parseCabalFile cradle file = do
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cid <- liftIO getGHCId
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epgd <- liftIO $ readPackageDescription silent file
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case toPkgDesc cid epgd of
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flags <- cabalConfigFlags cradle
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case toPkgDesc cid flags epgd of
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Left deps -> fail $ show deps ++ " are not installed"
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Right (pd,_) -> if nullPkg pd
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then fail $ file ++ " is broken"
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else return pd
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where
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toPkgDesc cid =
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finalizePackageDescription [] (const True) buildPlatform cid []
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toPkgDesc cid flags =
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finalizePackageDescription flags (const True) buildPlatform cid []
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nullPkg pd = name == ""
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where
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PackageName name = C.pkgName (P.package pd)
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@ -5,6 +5,7 @@
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module Language.Haskell.GhcMod.CabalConfig (
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CabalConfig
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, cabalConfigDependencies
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, cabalConfigFlags
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) where
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import Language.Haskell.GhcMod.Error
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@ -32,6 +33,7 @@ import Data.Set ()
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import Data.List (find,tails,isPrefixOf,isInfixOf,nub,stripPrefix)
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import Distribution.Package (InstalledPackageId(..)
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, PackageIdentifier)
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import Distribution.PackageDescription (FlagAssignment)
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import Distribution.Simple.BuildPaths (defaultDistPref)
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import Distribution.Simple.Configure (localBuildInfoFile)
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import Distribution.Simple.LocalBuildInfo (ComponentName)
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@ -130,6 +132,20 @@ configDependencies thisPkg config = map fromInstalledPackageId deps
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Right x -> x
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Left msg -> error $ "reading config " ++ f ++ " failed ("++msg++")"
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-- | Get the flag assignment from the local build info of the given cradle
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cabalConfigFlags :: (IOish m, MonadError GhcModError m)
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=> Cradle
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-> m FlagAssignment
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cabalConfigFlags cradle = do
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config <- getConfig cradle
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case configFlags config of
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Right x -> return x
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Left msg -> throwError (GMECabalFlags (GMEString msg))
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-- | Extract the cabal flags from the 'CabalConfig'
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configFlags :: CabalConfig -> Either String FlagAssignment
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configFlags config = readEither =<< flip extractField "configConfigurationsFlags" =<< extractField config "configFlags"
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-- | Find @field@ in 'CabalConfig'. Returns 'Left' containing a user readable
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-- error message with lots of context on failure.
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extractField :: CabalConfig -> String -> Either String String
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@ -31,7 +31,7 @@ debugInfo = cradle >>= \c -> convert' =<< do
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simpleCompilerOption = options >>= \op ->
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return $ CompilerOptions (ghcUserOptions op) [] []
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fromCabalFile c = options >>= \opts -> do
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pkgDesc <- parseCabalFile $ fromJust $ cradleCabalFile c
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pkgDesc <- parseCabalFile c $ fromJust $ cradleCabalFile c
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getCompilerOptions (ghcUserOptions opts) c pkgDesc
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----------------------------------------------------------------
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@ -18,6 +18,8 @@ data GhcModError = GMENoMsg
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-- 'fail' calls on GhcModT.
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| GMECabalConfigure GhcModError
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-- ^ Configuring a cabal project failed.
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| GMECabalFlags GhcModError
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-- ^ Retrieval of the cabal configuration flags failed.
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| GMEProcess [String] GhcModError
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-- ^ Launching an operating system process failed. The first
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-- field is the command.
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@ -204,7 +204,7 @@ initializeFlagsWithCradle opt c
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cabal = isJust mCradleFile
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ghcopts = ghcUserOptions opt
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withCabal = do
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pkgDesc <- parseCabalFile $ fromJust mCradleFile
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pkgDesc <- parseCabalFile c $ fromJust mCradleFile
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compOpts <- getCompilerOptions ghcopts c pkgDesc
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initSession CabalPkg opt compOpts
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withSandbox = initSession SingleFile opt compOpts
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@ -34,6 +34,7 @@ Extra-Source-Files: ChangeLog
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test/data/broken-cabal/cabal.sandbox.config.in
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test/data/broken-sandbox/*.cabal
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test/data/broken-sandbox/cabal.sandbox.config
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test/data/cabal-flags/*.cabal
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test/data/check-test-subdir/*.cabal
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test/data/check-test-subdir/src/Check/Test/*.hs
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test/data/check-test-subdir/test/*.hs
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@ -149,6 +149,8 @@ main = flip E.catches handlers $ do
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hPutStrLn stderr msg
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Left (GMECabalConfigure msg) ->
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hPutStrLn stderr $ "cabal configure failed: " ++ show msg
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Left (GMECabalFlags msg) ->
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hPutStrLn stderr $ "retrieval of the cabal configuration flags failed: " ++ show msg
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Left (GMEProcess cmd msg) ->
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hPutStrLn stderr $
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"launching operating system process `"++c++"` failed: " ++ show msg
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@ -10,6 +10,7 @@ import Language.Haskell.GhcMod.Types
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import Test.Hspec
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import System.Directory
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import System.FilePath
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import System.Process (readProcess)
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import Dir
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import TestUtils
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@ -23,8 +24,10 @@ spec :: Spec
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spec = do
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describe "parseCabalFile" $ do
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it "throws an exception if the cabal file is broken" $ do
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shouldReturnError $
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runD' $ parseCabalFile "test/data/broken-cabal/broken.cabal"
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shouldReturnError $ do
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withDirectory_ "test/data/broken-cabal" $ do
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crdl <- findCradle
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runD' $ parseCabalFile crdl "broken.cabal"
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describe "getCompilerOptions" $ do
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@ -32,7 +35,7 @@ spec = do
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cwd <- getCurrentDirectory
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withDirectory "test/data/subdir1/subdir2" $ \dir -> do
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crdl <- findCradle
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pkgDesc <- runD $ parseCabalFile $ fromJust $ cradleCabalFile crdl
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pkgDesc <- runD $ parseCabalFile crdl $ fromJust $ cradleCabalFile crdl
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res <- runD $ getCompilerOptions [] crdl pkgDesc
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let res' = res {
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ghcOptions = ghcOptions res
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@ -47,18 +50,28 @@ spec = do
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describe "cabalDependPackages" $ do
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it "extracts dependent packages" $ do
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pkgs <- cabalDependPackages . cabalAllBuildInfo <$> runD (parseCabalFile "test/data/cabalapi.cabal")
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crdl <- findCradle' "test/data/"
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pkgs <- cabalDependPackages . cabalAllBuildInfo <$> runD (parseCabalFile crdl "test/data/cabalapi.cabal")
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pkgs `shouldBe` ["Cabal","base","template-haskell"]
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it "uses non default flags" $ do
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withDirectory_ "test/data/cabal-flags" $ do
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crdl <- findCradle
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_ <- readProcess "cabal" ["configure", "-ftest-flag"] ""
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pkgs <- cabalDependPackages . cabalAllBuildInfo <$> runD (parseCabalFile crdl "cabal-flags.cabal")
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pkgs `shouldBe` ["Cabal","base"]
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describe "cabalSourceDirs" $ do
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it "extracts all hs-source-dirs" $ do
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dirs <- cabalSourceDirs . cabalAllBuildInfo <$> runD (parseCabalFile "test/data/check-test-subdir/check-test-subdir.cabal")
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crdl <- findCradle' "test/data/check-test-subdir"
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dirs <- cabalSourceDirs . cabalAllBuildInfo <$> runD (parseCabalFile crdl "test/data/check-test-subdir/check-test-subdir.cabal")
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dirs `shouldBe` ["src", "test"]
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it "extracts all hs-source-dirs including \".\"" $ do
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dirs <- cabalSourceDirs . cabalAllBuildInfo <$> runD (parseCabalFile "test/data/cabalapi.cabal")
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crdl <- findCradle' "test/data/"
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dirs <- cabalSourceDirs . cabalAllBuildInfo <$> runD (parseCabalFile crdl "test/data/cabalapi.cabal")
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dirs `shouldBe` [".", "test"]
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describe "cabalAllBuildInfo" $ do
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it "extracts build info" $ do
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info <- cabalAllBuildInfo <$> runD (parseCabalFile "test/data/cabalapi.cabal")
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crdl <- findCradle' "test/data/"
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info <- cabalAllBuildInfo <$> runD (parseCabalFile crdl "test/data/cabalapi.cabal")
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show info `shouldBe` "[BuildInfo {buildable = True, buildTools = [], cppOptions = [], ccOptions = [], ldOptions = [], pkgconfigDepends = [], frameworks = [], cSources = [], hsSourceDirs = [\".\"], otherModules = [ModuleName [\"Browse\"],ModuleName [\"CabalApi\"],ModuleName [\"Cabal\"],ModuleName [\"CabalDev\"],ModuleName [\"Check\"],ModuleName [\"ErrMsg\"],ModuleName [\"Flag\"],ModuleName [\"GHCApi\"],ModuleName [\"GHCChoice\"],ModuleName [\"Gap\"],ModuleName [\"Info\"],ModuleName [\"Lang\"],ModuleName [\"Lint\"],ModuleName [\"List\"],ModuleName [\"Paths_ghc_mod\"],ModuleName [\"Types\"]], defaultLanguage = Nothing, otherLanguages = [], defaultExtensions = [], otherExtensions = [], oldExtensions = [], extraLibs = [], extraLibDirs = [], includeDirs = [], includes = [], installIncludes = [], options = [(GHC,[\"-Wall\"])], ghcProfOptions = [], ghcSharedOptions = [], customFieldsBI = [], targetBuildDepends = [Dependency (PackageName \"Cabal\") (UnionVersionRanges (ThisVersion (Version {versionBranch = [1,10], versionTags = []})) (LaterVersion (Version {versionBranch = [1,10], versionTags = []}))),Dependency (PackageName \"base\") (IntersectVersionRanges (UnionVersionRanges (ThisVersion (Version {versionBranch = [4,0], versionTags = []})) (LaterVersion (Version {versionBranch = [4,0], versionTags = []}))) (EarlierVersion (Version {versionBranch = [5], versionTags = []}))),Dependency (PackageName \"template-haskell\") AnyVersion]},BuildInfo {buildable = True, buildTools = [], cppOptions = [], ccOptions = [], ldOptions = [], pkgconfigDepends = [], frameworks = [], cSources = [], hsSourceDirs = [\"test\",\".\"], otherModules = [ModuleName [\"Expectation\"],ModuleName [\"BrowseSpec\"],ModuleName [\"CabalApiSpec\"],ModuleName [\"FlagSpec\"],ModuleName [\"LangSpec\"],ModuleName [\"LintSpec\"],ModuleName [\"ListSpec\"]], defaultLanguage = Nothing, otherLanguages = [], defaultExtensions = [], otherExtensions = [], oldExtensions = [], extraLibs = [], extraLibDirs = [], includeDirs = [], includes = [], installIncludes = [], options = [], ghcProfOptions = [], ghcSharedOptions = [], customFieldsBI = [], targetBuildDepends = [Dependency (PackageName \"Cabal\") (UnionVersionRanges (ThisVersion (Version {versionBranch = [1,10], versionTags = []})) (LaterVersion (Version {versionBranch = [1,10], versionTags = []}))),Dependency (PackageName \"base\") (IntersectVersionRanges (UnionVersionRanges (ThisVersion (Version {versionBranch = [4,0], versionTags = []})) (LaterVersion (Version {versionBranch = [4,0], versionTags = []}))) (EarlierVersion (Version {versionBranch = [5], versionTags = []})))]}]"
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@ -0,0 +1,14 @@
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name: cabal-flags
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version: 0.1.0
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build-type: Simple
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cabal-version: >= 1.8
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flag test-flag
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default: False
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library
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build-depends: base == 4.*
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if flag(test-flag)
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build-depends: Cabal >= 1.10
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