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