ghcup-hs/app/ghcup/GHCup/OptParse/GC.hs

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{-# LANGUAGE CPP #-}
{-# LANGUAGE DataKinds #-}
{-# LANGUAGE TypeApplications #-}
{-# LANGUAGE FlexibleContexts #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE TemplateHaskell #-}
{-# LANGUAGE QuasiQuotes #-}
{-# LANGUAGE DuplicateRecordFields #-}
{-# LANGUAGE RankNTypes #-}
module GHCup.OptParse.GC where
import GHCup
import GHCup.Errors
import GHCup.Types
import GHCup.Utils.Logger
import GHCup.Utils.String.QQ
#if !MIN_VERSION_base(4,13,0)
import Control.Monad.Fail ( MonadFail )
#endif
import Control.Monad.Reader
import Control.Monad.Trans.Resource
import Data.Functor
import Haskus.Utils.Variant.Excepts
import Options.Applicative hiding ( style )
import Prelude hiding ( appendFile )
import System.Exit
import Text.PrettyPrint.HughesPJClass ( prettyShow )
import qualified Data.Text as T
import Control.Exception.Safe (MonadMask)
---------------
--[ Options ]--
---------------
data GCOptions = GCOptions
{ gcOldGHC :: Bool
, gcProfilingLibs :: Bool
, gcShareDir :: Bool
, gcHLSNoGHC :: Bool
, gcCache :: Bool
, gcTmp :: Bool
}
---------------
--[ Parsers ]--
---------------
gcP :: Parser GCOptions
gcP =
GCOptions
<$>
switch
(short 'o' <> long "ghc-old" <> help "Remove GHC versions marked as 'old'")
<*>
switch
(short 'p' <> long "profiling-libs" <> help "Remove profiling libs of GHC versions")
<*>
switch
(short 's' <> long "share-dir" <> help "Remove GHC share directories (documentation)")
<*>
switch
(short 'h' <> long "hls-no-ghc" <> help "Remove HLS versions that don't have a corresponding installed GHC version")
<*>
switch
(short 'c' <> long "cache" <> help "GC the GHCup cache")
<*>
switch
(short 't' <> long "tmpdirs" <> help "Remove tmpdir leftovers")
--------------
--[ Footer ]--
--------------
gcFooter :: String
gcFooter = [s|Discussion:
Performs garbage collection. If no switches are specified, does nothing.|]
---------------------------
--[ Effect interpreters ]--
---------------------------
type GCEffects = '[ NotInstalled, UninstallFailed ]
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runGC :: MonadUnliftIO m
=> (ReaderT AppState m (VEither GCEffects a) -> m (VEither GCEffects a))
-> Excepts GCEffects (ResourceT (ReaderT AppState m)) a
-> m (VEither GCEffects a)
runGC runAppState =
runAppState
. runResourceT
. runE
@GCEffects
------------------
--[ Entrypoint ]--
------------------
gc :: ( Monad m
, MonadMask m
, MonadUnliftIO m
, MonadFail m
)
=> GCOptions
-> (forall a. ReaderT AppState m (VEither GCEffects a) -> m (VEither GCEffects a))
-> (ReaderT LeanAppState m () -> m ())
-> m ExitCode
gc GCOptions{..} runAppState runLogger = runGC runAppState (do
when gcOldGHC (liftE rmOldGHC)
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lift $ when gcProfilingLibs rmProfilingLibs
lift $ when gcShareDir rmShareDir
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liftE $ when gcHLSNoGHC rmHLSNoGHC
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lift $ when gcCache rmCache
lift $ when gcTmp rmTmp
) >>= \case
VRight _ -> do
pure ExitSuccess
VLeft e -> do
runLogger $ logError $ T.pack $ prettyShow e
pure $ ExitFailure 27