{-# LANGUAGE DeriveDataTypeable #-}
module Stack.Clean
(clean
,CleanOpts(..)
,StackCleanException(..)
) where
import Control.Exception (Exception)
import Control.Monad.Catch (MonadThrow,throwM)
import Control.Monad.IO.Class (MonadIO)
import Control.Monad.Logger (MonadLogger)
import Control.Monad.Reader (MonadReader)
import Data.Foldable (forM_)
import Data.List ((\\),intercalate)
import qualified Data.Map.Strict as Map
import Data.Maybe (mapMaybe)
import Data.Typeable (Typeable)
import Path.IO (removeTreeIfExists)
import Stack.Build.Source (getLocalPackageViews)
import Stack.Build.Target (LocalPackageView(..))
import Stack.Constants (distDirFromDir)
import Stack.Types (HasEnvConfig,PackageName)
clean
:: (MonadThrow m, MonadIO m, MonadReader env m, HasEnvConfig env, MonadLogger m)
=> CleanOpts
-> m ()
clean (CleanOpts targets) = do
locals <- getLocalPackageViews
case targets \\ Map.keys locals of
[] -> do
let lpvs =
if null targets
then Map.elems locals
else mapMaybe (`Map.lookup` locals) targets
forM_ lpvs $ \(LocalPackageView{lpvRoot = pkgDir},_) -> do
distDir <- distDirFromDir pkgDir
removeTreeIfExists distDir
pkgs -> throwM (NonLocalPackages pkgs)
newtype CleanOpts = CleanOpts
{ cleanOptsTargets :: [PackageName]
}
newtype StackCleanException
= NonLocalPackages [PackageName]
deriving (Typeable)
instance Show StackCleanException where
show (NonLocalPackages pkgs) =
"The following packages are not part of this project: " ++
intercalate ", " (map show pkgs)
instance Exception StackCleanException