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getConfig runs "cabal configure" first if setup-config is invalid.

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This commit is contained in:
Kazu Yamamoto
2014-09-23 21:28:03 +09:00
parent 7db266c22d
commit c4929c54af
7 changed files with 91 additions and 109 deletions
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15
Language/Haskell/GhcMod/GhcPkg.hs
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@@ -21,7 +21,6 @@ import Data.Char (isSpace)
import Data.List (isPrefixOf, intercalate)
import Data.List.Split (splitOn)
import Distribution.Package (InstalledPackageId(..))
import DynFlags (DynFlags(..), systemPackageConfig)
import Exception (handleIO)
import Language.Haskell.GhcMod.Types
import Language.Haskell.GhcMod.Utils
@@ -119,17 +118,16 @@ packageConfDir :: String
packageConfDir = "package.conf.d"
-- fixme: error handling
getPackageCachePath :: Cradle -> DynFlags -> IO FilePath
getPackageCachePath crdl df = do
getPackageCachePath :: Cradle -> IO FilePath
getPackageCachePath crdl = do
let u:_ = filter (/= GlobalDb) $ cradlePkgDbStack crdl
Just db <- resolvePath df u
Just db <- resolvePath u
return db
--- Copied from ghc module `Packages' unfortunately it's not exported :/
resolvePath :: DynFlags -> GhcPkgDb -> IO (Maybe FilePath)
resolvePath df GlobalDb = return $ Just (systemPackageConfig df)
resolvePath _ (PackageDb name) = return $ Just name
resolvePath _ UserDb = handleIO (\_ -> return Nothing) $ do
resolvePath :: GhcPkgDb -> IO (Maybe FilePath)
resolvePath (PackageDb name) = return $ Just name
resolvePath UserDb = handleIO (\_ -> return Nothing) $ do
appdir <- getAppUserDataDirectory "ghc"
let dir = appdir </> (target_arch ++ '-':target_os ++ '-':cProjectVersion)
pkgconf = dir </> packageConfDir
@@ -137,3 +135,4 @@ resolvePath _ UserDb = handleIO (\_ -> return Nothing) $ do
return $ if exist then Just pkgconf else Nothing
where
[target_arch,_,target_os] = splitOn "-" cTargetPlatformString
resolvePath _ = error "GlobalDb cannot be used in resolvePath"