diff options
| -rw-r--r-- | cabal-helper.cabal | 1 | ||||
| -rw-r--r-- | lib/Distribution/Helper/Discover.hs | 38 | ||||
| -rw-r--r-- | src/CabalHelper/Compiletime/Compat/Directory.hs | 26 |
3 files changed, 63 insertions, 2 deletions
diff --git a/cabal-helper.cabal b/cabal-helper.cabal index 9cc7215..cb43f72 100644 --- a/cabal-helper.cabal +++ b/cabal-helper.cabal @@ -131,6 +131,7 @@ library c-h-internal import: build-deps, extensions exposed-modules: CabalHelper.Compiletime.Cabal + CabalHelper.Compiletime.Compat.Directory CabalHelper.Compiletime.Compat.Environment CabalHelper.Compiletime.Compat.ProgramDb CabalHelper.Compiletime.Compat.Version diff --git a/lib/Distribution/Helper/Discover.hs b/lib/Distribution/Helper/Discover.hs index d4abe69..a748b25 100644 --- a/lib/Distribution/Helper/Discover.hs +++ b/lib/Distribution/Helper/Discover.hs @@ -14,6 +14,8 @@ -- You should have received a copy of the GNU General Public License -- along with this program. If not, see <http://www.gnu.org/licenses/>. +{-# LANGUAGE GADTs #-} + {-| Module : Distribution.Helper.Discover Description : Finding project contexts @@ -30,12 +32,44 @@ module Distribution.Helper.Discover , findDistDirsWithHints ) where +import Control.Monad.Writer +import Data.List +import System.Directory +import System.FilePath + import CabalHelper.Compiletime.Types +import CabalHelper.Compiletime.Cabal +import CabalHelper.Compiletime.Compat.Directory findProjects :: FilePath -> IO [Ex ProjLoc] findDistDirs :: ProjLoc pt -> [DistDir pt] findDistDirsWithHints :: ProjLoc pt -> [FilePath] -> [DistDir pt] -findProjects = undefined -findDistDirs = undefined +findProjects dir = execWriterT $ do + let cabalProject = dir </> "cabal.project" + whenM (liftIO $ doesFileExist cabalProject) $ + tell [Ex $ ProjLocV2File cabalProject] + let stackYaml = dir </> "stack.yaml" + whenM (liftIO $ doesFileExist stackYaml) $ + tell [Ex $ ProjLocStackYaml stackYaml] + join $ traverse (tell . pure . Ex . ProjLocV1CabalFile) <$> + liftIO (findCabalFiles dir) + +findDistDirs (ProjLocV1CabalFile cabal) = + [DistDirV1 $ replaceFileName cabal "dist/"] +findDistDirs (ProjLocV1Dir dir) = [DistDirV1 $ dir </> "dist/"] +findDistDirs (ProjLocV2File cabal) = + [DistDirV2 $ replaceFileName cabal "dist-newstyle/"] +findDistDirs (ProjLocV2Dir dir) = [DistDirV2 $ dir </> "dist-newstyle/"] +findDistDirs (ProjLocStackYaml _) = [DistDirStack Nothing] + findDistDirsWithHints = undefined + +findCabalFiles :: FilePath -> IO [FilePath] +findCabalFiles dir = do + fs <- listDirectory dir + let cs = filter (".cabal" `isSuffixOf`) fs + filterM doesFileExist cs + +whenM :: Monad m => m Bool -> m () -> m () +whenM p x = p >>= (`when` x) diff --git a/src/CabalHelper/Compiletime/Compat/Directory.hs b/src/CabalHelper/Compiletime/Compat/Directory.hs new file mode 100644 index 0000000..0a65164 --- /dev/null +++ b/src/CabalHelper/Compiletime/Compat/Directory.hs @@ -0,0 +1,26 @@ +-- cabal-helper: Simple interface to Cabal's configuration state +-- Copyright (C) 2019 Daniel Gröber <cabal-helper@dxld.at> +-- +-- This program is free software: you can redistribute it and/or modify +-- it under the terms of the GNU 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 General Public License for more details. +-- +-- You should have received a copy of the GNU General Public License +-- along with this program. If not, see <http://www.gnu.org/licenses/>. + +{-# LANGUAGE CPP #-} +module CabalHelper.Compiletime.Compat.Directory where + +import System.Directory (getDirectoryContents) + +#if !MIN_VERSION_directory(1,2,5) +listDirectory :: FilePath -> IO [FilePath] +listDirectory path = + filter (\f -> f /= "." && f /= "..") <$> getDirectoryContents path +#endif |