ghc-mod/core/GhcMod/CustomPackageDb.hs
Daniel Gröber 35690941aa Reorganize module namespace
- Remove Language.Haskell prefix from all modules
- Move 'GHCMod.*' to 'GhcMod.Exe'
- Move 'GhcModExe' to 'GhcMod.Exe'
2017-05-28 04:23:37 +02:00

39 lines
1.5 KiB
Haskell

-- ghc-mod: Happy Haskell Hacking
-- Copyright (C) 2015 Daniel Gröber <dxld ÄT darkboxed DOT org>
--
-- This program is free software: you can redistribute it and/or modify
-- it under the terms of the GNU Affero General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU Affero General Public License for more details.
--
-- You should have received a copy of the GNU Affero General Public License
-- along with this program. If not, see <http://www.gnu.org/licenses/>.
module GhcMod.CustomPackageDb where
import Control.Applicative
import Control.Monad
import Control.Category ((.))
import Data.Maybe
import Data.Traversable
import GhcMod.Types
import GhcMod.Monad.Types
import GhcMod.PathsAndFiles
import Prelude hiding ((.))
parseCustomPackageDb :: String -> [GhcPkgDb]
parseCustomPackageDb src = map parsePkgDb $ filter (not . null) $ lines src
where
parsePkgDb "global" = GlobalDb
parsePkgDb "user" = UserDb
parsePkgDb s = PackageDb s
getCustomPkgDbStack :: (MonadIO m, GmEnv m) => m (Maybe [GhcPkgDb])
getCustomPkgDbStack = do
mCusPkgDbFile <- liftIO . (traverse readFile <=< findCustomPackageDbFile) . cradleRootDir =<< cradle
return $ parseCustomPackageDb <$> mCusPkgDbFile