{-# OPTIONS_GHC -Wno-orphans #-}
module Development.IDE.Main
(Arguments(..)
,defaultArguments
,Command(..)
,IdeCommand(..)
,isLSP
,commandP
,defaultMain
,testing
,Log(..)
) where

import           Control.Concurrent.Extra                 (withNumCapabilities)
import           Control.Concurrent.MVar                  (newEmptyMVar,
                                                           putMVar, tryReadMVar)
import           Control.Concurrent.STM.Stats             (dumpSTMStats)
import           Control.Exception.Safe                   (SomeException,
                                                           catchAny,
                                                           displayException)
import           Control.Monad.Extra                      (concatMapM, unless,
                                                           when)
import           Control.Monad.IO.Class                   (liftIO)
import qualified Data.Aeson                               as J
import           Data.Coerce                              (coerce)
import           Data.Default                             (Default (def))
import           Data.Foldable                            (traverse_)
import           Data.Hashable                            (hashed)
import qualified Data.HashMap.Strict                      as HashMap
import           Data.List.Extra                          (intercalate,
                                                           isPrefixOf, nubOrd,
                                                           partition)
import           Data.Maybe                               (catMaybes, isJust)
import qualified Data.Text                                as T
import           Development.IDE                          (Action,
                                                           Priority (Debug, Error),
                                                           Rules, emptyFilePath,
                                                           hDuplicateTo')
import           Development.IDE.Core.Debouncer           (Debouncer,
                                                           newAsyncDebouncer)
import           Development.IDE.Core.FileStore           (isWatchSupported,
                                                           setSomethingModified)
import           Development.IDE.Core.IdeConfiguration    (IdeConfiguration (..),
                                                           modifyClientSettings,
                                                           registerIdeConfiguration)
import           Development.IDE.Core.OfInterest          (FileOfInterestStatus (OnDisk),
                                                           kick,
                                                           setFilesOfInterest)
import           Development.IDE.Core.Rules               (mainRule)
import qualified Development.IDE.Core.Rules               as Rules
import           Development.IDE.Core.RuleTypes           (GenerateCore (GenerateCore),
                                                           GetHieAst (GetHieAst),
                                                           TypeCheck (TypeCheck))
import           Development.IDE.Core.Service             (initialise,
                                                           runAction)
import qualified Development.IDE.Core.Service             as Service
import           Development.IDE.Core.Shake               (IdeState (shakeExtras),
                                                           IndexQueue,
                                                           shakeSessionInit,
                                                           uses)
import qualified Development.IDE.Core.Shake               as Shake
import           Development.IDE.Graph                    (action)
import           Development.IDE.LSP.LanguageServer       (runLanguageServer,
                                                           setupLSP)
import qualified Development.IDE.LSP.LanguageServer       as LanguageServer
import           Development.IDE.Main.HeapStats           (withHeapStats)
import qualified Development.IDE.Main.HeapStats           as HeapStats
import qualified Development.IDE.Monitoring.EKG           as EKG
import qualified Development.IDE.Monitoring.OpenTelemetry as OpenTelemetry
import           Development.IDE.Plugin                   (Plugin (pluginHandlers, pluginModifyDynflags, pluginRules))
import           Development.IDE.Plugin.HLS               (asGhcIdePlugin)
import qualified Development.IDE.Plugin.HLS               as PluginHLS
import qualified Development.IDE.Plugin.HLS.GhcIde        as GhcIde
import qualified Development.IDE.Plugin.Test              as Test
import           Development.IDE.Session                  (SessionLoadingOptions,
                                                           getHieDbLoc,
                                                           loadSessionWithOptions,
                                                           retryOnSqliteBusy,
                                                           runWithDb,
                                                           setInitialDynFlags)
import qualified Development.IDE.Session                  as Session
import           Development.IDE.Types.Location           (NormalizedUri,
                                                           toNormalizedFilePath')
import           Development.IDE.Types.Monitoring         (Monitoring)
import           Development.IDE.Types.Options            (IdeGhcSession,
                                                           IdeOptions (optCheckParents, optCheckProject, optReportProgress, optRunSubset),
                                                           IdeTesting (IdeTesting),
                                                           clientSupportsProgress,
                                                           defaultIdeOptions,
                                                           optModifyDynFlags,
                                                           optTesting)
import           Development.IDE.Types.Shake              (WithHieDb, toKey)
import           GHC.Conc                                 (getNumProcessors)
import           GHC.IO.Encoding                          (setLocaleEncoding)
import           GHC.IO.Handle                            (hDuplicate)
import           HIE.Bios.Cradle                          (findCradle)
import qualified HieDb.Run                                as HieDb
import           Ide.Logger                               (Logger,
                                                           Pretty (pretty),
                                                           Priority (Info),
                                                           Recorder,
                                                           WithPriority,
                                                           cmapWithPrio,
                                                           logDebug, logWith,
                                                           nest, vsep, (<+>))
import           Ide.Plugin.Config                        (CheckParents (NeverCheck),
                                                           Config, checkParents,
                                                           checkProject,
                                                           getConfigFromNotification)
import           Ide.PluginUtils                          (allLspCmdIds',
                                                           getProcessID,
                                                           idePluginsToPluginDesc,
                                                           pluginDescToIdePlugins)
import           Ide.Types                                (IdeCommand (IdeCommand),
                                                           IdePlugins,
                                                           PluginDescriptor (PluginDescriptor, pluginCli),
                                                           PluginId (PluginId),
                                                           ipMap, pluginId)
import qualified Language.LSP.Server                      as LSP
import           Numeric.Natural                          (Natural)
import           Options.Applicative                      hiding (action)
import qualified System.Directory.Extra                   as IO
import           System.Exit                              (ExitCode (ExitFailure),
                                                           exitWith)
import           System.FilePath                          (takeExtension,
                                                           takeFileName)
import           System.IO                                (BufferMode (LineBuffering, NoBuffering),
                                                           Handle, hFlush,
                                                           hPutStrLn,
                                                           hSetBuffering,
                                                           hSetEncoding, stderr,
                                                           stdin, stdout, utf8)
import           System.Random                            (newStdGen)
import           System.Time.Extra                        (Seconds, offsetTime,
                                                           showDuration)

data Log
  = LogHeapStats !HeapStats.Log
  | LogLspStart [PluginId]
  | LogLspStartDuration !Seconds
  | LogShouldRunSubset !Bool
  | LogSetInitialDynFlagsException !SomeException
  | LogService Service.Log
  | LogShake Shake.Log
  | LogGhcIde GhcIde.Log
  | LogLanguageServer LanguageServer.Log
  | LogSession Session.Log
  | LogPluginHLS PluginHLS.Log
  | LogRules Rules.Log
  deriving Int -> Log -> ShowS
[Log] -> ShowS
Log -> String
(Int -> Log -> ShowS)
-> (Log -> String) -> ([Log] -> ShowS) -> Show Log
forall a.
(Int -> a -> ShowS) -> (a -> String) -> ([a] -> ShowS) -> Show a
$cshowsPrec :: Int -> Log -> ShowS
showsPrec :: Int -> Log -> ShowS
$cshow :: Log -> String
show :: Log -> String
$cshowList :: [Log] -> ShowS
showList :: [Log] -> ShowS
Show

instance Pretty Log where
  pretty :: forall ann. Log -> Doc ann
pretty = \case
    LogHeapStats Log
msg -> Log -> Doc ann
forall a ann. Pretty a => a -> Doc ann
forall ann. Log -> Doc ann
pretty Log
msg
    LogLspStart [PluginId]
pluginIds ->
      Int -> Doc ann -> Doc ann
forall ann. Int -> Doc ann -> Doc ann
nest Int
2 (Doc ann -> Doc ann) -> Doc ann -> Doc ann
forall a b. (a -> b) -> a -> b
$ [Doc ann] -> Doc ann
forall ann. [Doc ann] -> Doc ann
vsep
        [ Doc ann
"Starting LSP server..."
        , Doc ann
"If you are seeing this in a terminal, you probably should have run WITHOUT the --lsp option!"
        , Doc ann
"PluginIds:" Doc ann -> Doc ann -> Doc ann
forall ann. Doc ann -> Doc ann -> Doc ann
<+> [Text] -> Doc ann
forall ann. [Text] -> Doc ann
forall a ann. Pretty a => a -> Doc ann
pretty (forall a b. Coercible a b => a -> b
forall a b. Coercible a b => a -> b
coerce @_ @[T.Text] [PluginId]
pluginIds)
        ]
    LogLspStartDuration Seconds
duration ->
      Doc ann
"Started LSP server in" Doc ann -> Doc ann -> Doc ann
forall ann. Doc ann -> Doc ann -> Doc ann
<+> String -> Doc ann
forall ann. String -> Doc ann
forall a ann. Pretty a => a -> Doc ann
pretty (Seconds -> String
showDuration Seconds
duration)
    LogShouldRunSubset Bool
shouldRunSubset ->
      Doc ann
"shouldRunSubset:" Doc ann -> Doc ann -> Doc ann
forall ann. Doc ann -> Doc ann -> Doc ann
<+> Bool -> Doc ann
forall ann. Bool -> Doc ann
forall a ann. Pretty a => a -> Doc ann
pretty Bool
shouldRunSubset
    LogSetInitialDynFlagsException SomeException
e ->
      Doc ann
"setInitialDynFlags:" Doc ann -> Doc ann -> Doc ann
forall ann. Doc ann -> Doc ann -> Doc ann
<+> String -> Doc ann
forall ann. String -> Doc ann
forall a ann. Pretty a => a -> Doc ann
pretty (SomeException -> String
forall e. Exception e => e -> String
displayException SomeException
e)
    LogService Log
msg -> Log -> Doc ann
forall a ann. Pretty a => a -> Doc ann
forall ann. Log -> Doc ann
pretty Log
msg
    LogShake Log
msg -> Log -> Doc ann
forall a ann. Pretty a => a -> Doc ann
forall ann. Log -> Doc ann
pretty Log
msg
    LogGhcIde Log
msg -> Log -> Doc ann
forall a ann. Pretty a => a -> Doc ann
forall ann. Log -> Doc ann
pretty Log
msg
    LogLanguageServer Log
msg -> Log -> Doc ann
forall a ann. Pretty a => a -> Doc ann
forall ann. Log -> Doc ann
pretty Log
msg
    LogSession Log
msg -> Log -> Doc ann
forall a ann. Pretty a => a -> Doc ann
forall ann. Log -> Doc ann
pretty Log
msg
    LogPluginHLS Log
msg -> Log -> Doc ann
forall a ann. Pretty a => a -> Doc ann
forall ann. Log -> Doc ann
pretty Log
msg
    LogRules Log
msg -> Log -> Doc ann
forall a ann. Pretty a => a -> Doc ann
forall ann. Log -> Doc ann
pretty Log
msg

data Command
    = Check [FilePath]  -- ^ Typecheck some paths and print diagnostics. Exit code is the number of failures
    | Db {Command -> Options
hieOptions ::  HieDb.Options, Command -> Command
hieCommand :: HieDb.Command}
     -- ^ Run a command in the hiedb
    | LSP   -- ^ Run the LSP server
    | Custom {Command -> IdeCommand IdeState
ideCommand :: IdeCommand IdeState} -- ^ User defined
    deriving Int -> Command -> ShowS
[Command] -> ShowS
Command -> String
(Int -> Command -> ShowS)
-> (Command -> String) -> ([Command] -> ShowS) -> Show Command
forall a.
(Int -> a -> ShowS) -> (a -> String) -> ([a] -> ShowS) -> Show a
$cshowsPrec :: Int -> Command -> ShowS
showsPrec :: Int -> Command -> ShowS
$cshow :: Command -> String
show :: Command -> String
$cshowList :: [Command] -> ShowS
showList :: [Command] -> ShowS
Show

-- TODO move these to hiedb
deriving instance Show HieDb.Command
deriving instance Show HieDb.Options

isLSP :: Command -> Bool
isLSP :: Command -> Bool
isLSP Command
LSP = Bool
True
isLSP Command
_   = Bool
False

commandP :: IdePlugins IdeState -> Parser Command
commandP :: IdePlugins IdeState -> Parser Command
commandP IdePlugins IdeState
plugins =
    Mod CommandFields Command -> Parser Command
forall a. Mod CommandFields a -> Parser a
hsubparser(String -> ParserInfo Command -> Mod CommandFields Command
forall a. String -> ParserInfo a -> Mod CommandFields a
command String
"typecheck" (Parser Command -> InfoMod Command -> ParserInfo Command
forall a. Parser a -> InfoMod a -> ParserInfo a
info ([String] -> Command
Check ([String] -> Command) -> Parser [String] -> Parser Command
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> Parser [String]
fileCmd) InfoMod Command
forall {a}. InfoMod a
fileInfo)
            Mod CommandFields Command
-> Mod CommandFields Command -> Mod CommandFields Command
forall a. Semigroup a => a -> a -> a
<> String -> ParserInfo Command -> Mod CommandFields Command
forall a. String -> ParserInfo a -> Mod CommandFields a
command String
"hiedb" (Parser Command -> InfoMod Command -> ParserInfo Command
forall a. Parser a -> InfoMod a -> ParserInfo a
info (Options -> Command -> Command
Db (Options -> Command -> Command)
-> Parser Options -> Parser (Command -> Command)
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> String -> Bool -> Parser Options
HieDb.optParser String
"" Bool
True Parser (Command -> Command) -> Parser Command -> Parser Command
forall a b. Parser (a -> b) -> Parser a -> Parser b
forall (f :: * -> *) a b. Applicative f => f (a -> b) -> f a -> f b
<*> Parser Command
HieDb.cmdParser) InfoMod Command
forall {a}. InfoMod a
hieInfo)
            Mod CommandFields Command
-> Mod CommandFields Command -> Mod CommandFields Command
forall a. Semigroup a => a -> a -> a
<> String -> ParserInfo Command -> Mod CommandFields Command
forall a. String -> ParserInfo a -> Mod CommandFields a
command String
"lsp" (Parser Command -> InfoMod Command -> ParserInfo Command
forall a. Parser a -> InfoMod a -> ParserInfo a
info (Command -> Parser Command
forall a. a -> Parser a
forall (f :: * -> *) a. Applicative f => a -> f a
pure Command
LSP) InfoMod Command
forall {a}. InfoMod a
lspInfo)
            Mod CommandFields Command
-> Mod CommandFields Command -> Mod CommandFields Command
forall a. Semigroup a => a -> a -> a
<> Mod CommandFields Command
pluginCommands
            )
  where
    fileCmd :: Parser [String]
fileCmd = Parser String -> Parser [String]
forall a. Parser a -> Parser [a]
forall (f :: * -> *) a. Alternative f => f a -> f [a]
many (ReadM String -> Mod ArgumentFields String -> Parser String
forall a. ReadM a -> Mod ArgumentFields a -> Parser a
argument ReadM String
forall s. IsString s => ReadM s
str (String -> Mod ArgumentFields String
forall (f :: * -> *) a. HasMetavar f => String -> Mod f a
metavar String
"FILES/DIRS..."))
    lspInfo :: InfoMod a
lspInfo = InfoMod a
forall {a}. InfoMod a
fullDesc InfoMod a -> InfoMod a -> InfoMod a
forall a. Semigroup a => a -> a -> a
<> String -> InfoMod a
forall a. String -> InfoMod a
progDesc String
"Start talking to an LSP client"
    fileInfo :: InfoMod a
fileInfo = InfoMod a
forall {a}. InfoMod a
fullDesc InfoMod a -> InfoMod a -> InfoMod a
forall a. Semigroup a => a -> a -> a
<> String -> InfoMod a
forall a. String -> InfoMod a
progDesc String
"Used as a test bed to check your IDE will work"
    hieInfo :: InfoMod a
hieInfo = InfoMod a
forall {a}. InfoMod a
fullDesc InfoMod a -> InfoMod a -> InfoMod a
forall a. Semigroup a => a -> a -> a
<> String -> InfoMod a
forall a. String -> InfoMod a
progDesc String
"Query .hie files"

    pluginCommands :: Mod CommandFields Command
pluginCommands = [Mod CommandFields Command] -> Mod CommandFields Command
forall a. Monoid a => [a] -> a
mconcat
        [ String -> ParserInfo Command -> Mod CommandFields Command
forall a. String -> ParserInfo a -> Mod CommandFields a
command (Text -> String
T.unpack Text
pId) (IdeCommand IdeState -> Command
Custom (IdeCommand IdeState -> Command)
-> ParserInfo (IdeCommand IdeState) -> ParserInfo Command
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> ParserInfo (IdeCommand IdeState)
p)
        | PluginDescriptor{$sel:pluginCli:PluginDescriptor :: forall ideState.
PluginDescriptor ideState
-> Maybe (ParserInfo (IdeCommand ideState))
pluginCli = Just ParserInfo (IdeCommand IdeState)
p, $sel:pluginId:PluginDescriptor :: forall ideState. PluginDescriptor ideState -> PluginId
pluginId = PluginId Text
pId} <- IdePlugins IdeState -> [PluginDescriptor IdeState]
forall ideState. IdePlugins ideState -> [PluginDescriptor ideState]
ipMap IdePlugins IdeState
plugins
        ]


data Arguments = Arguments
    { Arguments -> Maybe String
argsProjectRoot           :: Maybe FilePath
    , Arguments -> Command
argCommand                :: Command
    , Arguments -> IO Logger
argsLogger                :: IO Logger
    , Arguments -> Rules ()
argsRules                 :: Rules ()
    , Arguments -> IdePlugins IdeState
argsHlsPlugins            :: IdePlugins IdeState
    , Arguments -> Plugin Config
argsGhcidePlugin          :: Plugin Config  -- ^ Deprecated
    , Arguments -> SessionLoadingOptions
argsSessionLoadingOptions :: SessionLoadingOptions
    , Arguments -> Config -> Action IdeGhcSession -> IdeOptions
argsIdeOptions            :: Config -> Action IdeGhcSession -> IdeOptions
    , Arguments -> Options
argsLspOptions            :: LSP.Options
    , Arguments -> Config
argsDefaultHlsConfig      :: Config
    , Arguments -> String -> IO String
argsGetHieDbLoc           :: FilePath -> IO FilePath -- ^ Map project roots to the location of the hiedb for the project
    , Arguments -> IO (Debouncer NormalizedUri)
argsDebouncer             :: IO (Debouncer NormalizedUri) -- ^ Debouncer used for diagnostics
    , Arguments -> IO Handle
argsHandleIn              :: IO Handle
    , Arguments -> IO Handle
argsHandleOut             :: IO Handle
    , Arguments -> Maybe Natural
argsThreads               :: Maybe Natural
    , Arguments -> IO Monitoring
argsMonitoring            :: IO Monitoring
    }

defaultArguments :: Recorder (WithPriority Log) -> Logger -> IdePlugins IdeState -> Arguments
defaultArguments :: Recorder (WithPriority Log)
-> Logger -> IdePlugins IdeState -> Arguments
defaultArguments Recorder (WithPriority Log)
recorder Logger
logger IdePlugins IdeState
plugins = Arguments
        { argsProjectRoot :: Maybe String
argsProjectRoot = Maybe String
forall a. Maybe a
Nothing
        , argCommand :: Command
argCommand = Command
LSP
        , argsLogger :: IO Logger
argsLogger = Logger -> IO Logger
forall a. a -> IO a
forall (f :: * -> *) a. Applicative f => a -> f a
pure Logger
logger
        , argsRules :: Rules ()
argsRules = Recorder (WithPriority Log) -> RulesConfig -> Rules ()
mainRule ((Log -> Log)
-> Recorder (WithPriority Log) -> Recorder (WithPriority Log)
forall a b.
(a -> b) -> Recorder (WithPriority b) -> Recorder (WithPriority a)
cmapWithPrio Log -> Log
LogRules Recorder (WithPriority Log)
recorder) RulesConfig
forall a. Default a => a
def Rules () -> Rules () -> Rules ()
forall a b. Rules a -> Rules b -> Rules b
forall (m :: * -> *) a b. Monad m => m a -> m b -> m b
>> Action () -> Rules ()
forall a. Action a -> Rules ()
action Action ()
kick
        , argsGhcidePlugin :: Plugin Config
argsGhcidePlugin = Plugin Config
forall a. Monoid a => a
mempty
        , argsHlsPlugins :: IdePlugins IdeState
argsHlsPlugins = [PluginDescriptor IdeState] -> IdePlugins IdeState
forall ideState. [PluginDescriptor ideState] -> IdePlugins ideState
pluginDescToIdePlugins (Recorder (WithPriority Log) -> [PluginDescriptor IdeState]
GhcIde.descriptors ((Log -> Log)
-> Recorder (WithPriority Log) -> Recorder (WithPriority Log)
forall a b.
(a -> b) -> Recorder (WithPriority b) -> Recorder (WithPriority a)
cmapWithPrio Log -> Log
LogGhcIde Recorder (WithPriority Log)
recorder)) IdePlugins IdeState -> IdePlugins IdeState -> IdePlugins IdeState
forall a. Semigroup a => a -> a -> a
<> IdePlugins IdeState
plugins
        , argsSessionLoadingOptions :: SessionLoadingOptions
argsSessionLoadingOptions = SessionLoadingOptions
forall a. Default a => a
def
        , argsIdeOptions :: Config -> Action IdeGhcSession -> IdeOptions
argsIdeOptions = \Config
config Action IdeGhcSession
ghcSession -> (Action IdeGhcSession -> IdeOptions
defaultIdeOptions Action IdeGhcSession
ghcSession)
            { optCheckProject = pure $ checkProject config
            , optCheckParents = pure $ checkParents config
            }
        , argsLspOptions :: Options
argsLspOptions = Options
forall a. Default a => a
def {LSP.optCompletionTriggerCharacters = Just "."}
        , argsDefaultHlsConfig :: Config
argsDefaultHlsConfig = Config
forall a. Default a => a
def
        , argsGetHieDbLoc :: String -> IO String
argsGetHieDbLoc = String -> IO String
getHieDbLoc
        , argsDebouncer :: IO (Debouncer NormalizedUri)
argsDebouncer = IO (Debouncer NormalizedUri)
forall k. (Eq k, Hashable k) => IO (Debouncer k)
newAsyncDebouncer
        , argsThreads :: Maybe Natural
argsThreads = Maybe Natural
forall a. Maybe a
Nothing
        , argsHandleIn :: IO Handle
argsHandleIn = Handle -> IO Handle
forall a. a -> IO a
forall (f :: * -> *) a. Applicative f => a -> f a
pure Handle
stdin
        , argsHandleOut :: IO Handle
argsHandleOut = do
                -- Move stdout to another file descriptor and duplicate stderr
                -- to stdout. This guards against stray prints from corrupting the JSON-RPC
                -- message stream.
                Handle
newStdout <- Handle -> IO Handle
hDuplicate Handle
stdout
                Handle
stderr Handle -> Handle -> IO ()
`hDuplicateTo'` Handle
stdout
                Handle -> BufferMode -> IO ()
hSetBuffering Handle
stdout BufferMode
NoBuffering

                -- Print out a single space to assert that the above redirection works.
                -- This is interleaved with the logger, hence we just print a space here in
                -- order not to mess up the output too much. Verified that this breaks
                -- the language server tests without the redirection.
                String -> IO ()
putStr String
" " IO () -> IO () -> IO ()
forall a b. IO a -> IO b -> IO b
forall (m :: * -> *) a b. Monad m => m a -> m b -> m b
>> Handle -> IO ()
hFlush Handle
stdout
                Handle -> IO Handle
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return Handle
newStdout
        , argsMonitoring :: IO Monitoring
argsMonitoring = IO Monitoring
OpenTelemetry.monitoring IO Monitoring -> IO Monitoring -> IO Monitoring
forall a. Semigroup a => a -> a -> a
<> Logger -> Int -> IO Monitoring
EKG.monitoring Logger
logger Int
8999
        }


testing :: Recorder (WithPriority Log) -> Logger -> IdePlugins IdeState -> Arguments
testing :: Recorder (WithPriority Log)
-> Logger -> IdePlugins IdeState -> Arguments
testing Recorder (WithPriority Log)
recorder Logger
logger IdePlugins IdeState
plugins =
  let
    arguments :: Arguments
arguments@Arguments{ IdePlugins IdeState
argsHlsPlugins :: Arguments -> IdePlugins IdeState
argsHlsPlugins :: IdePlugins IdeState
argsHlsPlugins, Config -> Action IdeGhcSession -> IdeOptions
argsIdeOptions :: Arguments -> Config -> Action IdeGhcSession -> IdeOptions
argsIdeOptions :: Config -> Action IdeGhcSession -> IdeOptions
argsIdeOptions } =
        Recorder (WithPriority Log)
-> Logger -> IdePlugins IdeState -> Arguments
defaultArguments Recorder (WithPriority Log)
recorder Logger
logger IdePlugins IdeState
plugins
    hlsPlugins :: IdePlugins IdeState
hlsPlugins = [PluginDescriptor IdeState] -> IdePlugins IdeState
forall ideState. [PluginDescriptor ideState] -> IdePlugins ideState
pluginDescToIdePlugins ([PluginDescriptor IdeState] -> IdePlugins IdeState)
-> [PluginDescriptor IdeState] -> IdePlugins IdeState
forall a b. (a -> b) -> a -> b
$
      IdePlugins IdeState -> [PluginDescriptor IdeState]
forall ideState. IdePlugins ideState -> [PluginDescriptor ideState]
idePluginsToPluginDesc IdePlugins IdeState
argsHlsPlugins
      [PluginDescriptor IdeState]
-> [PluginDescriptor IdeState] -> [PluginDescriptor IdeState]
forall a. [a] -> [a] -> [a]
++ [PluginId -> PluginDescriptor IdeState
forall state. PluginId -> PluginDescriptor state
Test.blockCommandDescriptor PluginId
"block-command", PluginDescriptor IdeState
Test.plugin]
    ideOptions :: Config -> Action IdeGhcSession -> IdeOptions
ideOptions Config
config Action IdeGhcSession
sessionLoader =
      let
        defOptions :: IdeOptions
defOptions = Config -> Action IdeGhcSession -> IdeOptions
argsIdeOptions Config
config Action IdeGhcSession
sessionLoader
      in
        IdeOptions
defOptions{ optTesting = IdeTesting True }
  in
    Arguments
arguments
      { argsHlsPlugins = hlsPlugins
      , argsIdeOptions = ideOptions
      }

defaultMain :: Recorder (WithPriority Log) -> Arguments -> IO ()
defaultMain :: Recorder (WithPriority Log) -> Arguments -> IO ()
defaultMain Recorder (WithPriority Log)
recorder Arguments{Maybe Natural
Maybe String
IO Handle
IO Logger
IO (Debouncer NormalizedUri)
IO Monitoring
Rules ()
Config
IdePlugins IdeState
Options
SessionLoadingOptions
Plugin Config
Command
String -> IO String
Config -> Action IdeGhcSession -> IdeOptions
argsProjectRoot :: Arguments -> Maybe String
argCommand :: Arguments -> Command
argsLogger :: Arguments -> IO Logger
argsRules :: Arguments -> Rules ()
argsHlsPlugins :: Arguments -> IdePlugins IdeState
argsGhcidePlugin :: Arguments -> Plugin Config
argsSessionLoadingOptions :: Arguments -> SessionLoadingOptions
argsIdeOptions :: Arguments -> Config -> Action IdeGhcSession -> IdeOptions
argsLspOptions :: Arguments -> Options
argsDefaultHlsConfig :: Arguments -> Config
argsGetHieDbLoc :: Arguments -> String -> IO String
argsDebouncer :: Arguments -> IO (Debouncer NormalizedUri)
argsHandleIn :: Arguments -> IO Handle
argsHandleOut :: Arguments -> IO Handle
argsThreads :: Arguments -> Maybe Natural
argsMonitoring :: Arguments -> IO Monitoring
argsProjectRoot :: Maybe String
argCommand :: Command
argsLogger :: IO Logger
argsRules :: Rules ()
argsHlsPlugins :: IdePlugins IdeState
argsGhcidePlugin :: Plugin Config
argsSessionLoadingOptions :: SessionLoadingOptions
argsIdeOptions :: Config -> Action IdeGhcSession -> IdeOptions
argsLspOptions :: Options
argsDefaultHlsConfig :: Config
argsGetHieDbLoc :: String -> IO String
argsDebouncer :: IO (Debouncer NormalizedUri)
argsHandleIn :: IO Handle
argsHandleOut :: IO Handle
argsThreads :: Maybe Natural
argsMonitoring :: IO Monitoring
..} = Recorder (WithPriority Log) -> IO () -> IO ()
forall r. Recorder (WithPriority Log) -> IO r -> IO r
withHeapStats ((Log -> Log)
-> Recorder (WithPriority Log) -> Recorder (WithPriority Log)
forall a b.
(a -> b) -> Recorder (WithPriority b) -> Recorder (WithPriority a)
cmapWithPrio Log -> Log
LogHeapStats Recorder (WithPriority Log)
recorder) IO ()
fun
 where
  fun :: IO ()
fun = do
    TextEncoding -> IO ()
setLocaleEncoding TextEncoding
utf8
    Text
pid <- String -> Text
T.pack (String -> Text) -> (Int -> String) -> Int -> Text
forall b c a. (b -> c) -> (a -> b) -> a -> c
. Int -> String
forall a. Show a => a -> String
show (Int -> Text) -> IO Int -> IO Text
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> IO Int
getProcessID
    Logger
logger <- IO Logger
argsLogger
    Handle -> BufferMode -> IO ()
hSetBuffering Handle
stderr BufferMode
LineBuffering

    let hlsPlugin :: Plugin Config
hlsPlugin = Recorder (WithPriority Log) -> IdePlugins IdeState -> Plugin Config
asGhcIdePlugin ((Log -> Log)
-> Recorder (WithPriority Log) -> Recorder (WithPriority Log)
forall a b.
(a -> b) -> Recorder (WithPriority b) -> Recorder (WithPriority a)
cmapWithPrio Log -> Log
LogPluginHLS Recorder (WithPriority Log)
recorder) IdePlugins IdeState
argsHlsPlugins
        hlsCommands :: [Text]
hlsCommands = Text -> IdePlugins IdeState -> [Text]
forall ideState. Text -> IdePlugins ideState -> [Text]
allLspCmdIds' Text
pid IdePlugins IdeState
argsHlsPlugins
        plugins :: Plugin Config
plugins = Plugin Config
hlsPlugin Plugin Config -> Plugin Config -> Plugin Config
forall a. Semigroup a => a -> a -> a
<> Plugin Config
argsGhcidePlugin
        options :: Options
options = Options
argsLspOptions { LSP.optExecuteCommandCommands = LSP.optExecuteCommandCommands argsLspOptions <> Just hlsCommands }
        argsParseConfig :: Config -> Value -> Either Text Config
argsParseConfig = IdePlugins IdeState -> Config -> Value -> Either Text Config
forall s. IdePlugins s -> Config -> Value -> Either Text Config
getConfigFromNotification IdePlugins IdeState
argsHlsPlugins
        rules :: Rules ()
rules = Rules ()
argsRules Rules () -> Rules () -> Rules ()
forall a b. Rules a -> Rules b -> Rules b
forall (m :: * -> *) a b. Monad m => m a -> m b -> m b
>> Plugin Config -> Rules ()
forall c. Plugin c -> Rules ()
pluginRules Plugin Config
plugins

    Debouncer NormalizedUri
debouncer <- IO (Debouncer NormalizedUri)
argsDebouncer
    Handle
inH <- IO Handle
argsHandleIn
    Handle
outH <- IO Handle
argsHandleOut

    Int
numProcessors <- IO Int
getNumProcessors
    let numCapabilities :: Int
numCapabilities = Int -> Int -> Int
forall a. Ord a => a -> a -> a
max Int
1 (Int -> Int) -> Int -> Int
forall a b. (a -> b) -> a -> b
$ Int -> (Natural -> Int) -> Maybe Natural -> Int
forall b a. b -> (a -> b) -> Maybe a -> b
maybe (Int
numProcessors Int -> Int -> Int
forall a. Integral a => a -> a -> a
`div` Int
2) Natural -> Int
forall a b. (Integral a, Num b) => a -> b
fromIntegral Maybe Natural
argsThreads

    case Command
argCommand of
        Command
LSP -> Int -> IO () -> IO ()
forall a. Int -> IO a -> IO a
withNumCapabilities Int
numCapabilities (IO () -> IO ()) -> IO () -> IO ()
forall a b. (a -> b) -> a -> b
$ do
            IO Seconds
ioT <- IO (IO Seconds)
offsetTime
            Recorder (WithPriority Log) -> Priority -> Log -> IO ()
forall (m :: * -> *) msg.
(HasCallStack, MonadIO m) =>
Recorder (WithPriority msg) -> Priority -> msg -> m ()
logWith Recorder (WithPriority Log)
recorder Priority
Info (Log -> IO ()) -> Log -> IO ()
forall a b. (a -> b) -> a -> b
$ [PluginId] -> Log
LogLspStart (PluginDescriptor IdeState -> PluginId
forall ideState. PluginDescriptor ideState -> PluginId
pluginId (PluginDescriptor IdeState -> PluginId)
-> [PluginDescriptor IdeState] -> [PluginId]
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> IdePlugins IdeState -> [PluginDescriptor IdeState]
forall ideState. IdePlugins ideState -> [PluginDescriptor ideState]
ipMap IdePlugins IdeState
argsHlsPlugins)

            MVar IdeState
ideStateVar <- IO (MVar IdeState)
forall a. IO (MVar a)
newEmptyMVar
            let getIdeState :: LSP.LanguageContextEnv Config -> Maybe FilePath -> WithHieDb -> IndexQueue -> IO IdeState
                getIdeState :: LanguageContextEnv Config
-> Maybe String -> WithHieDb -> IndexQueue -> IO IdeState
getIdeState LanguageContextEnv Config
env Maybe String
rootPath WithHieDb
withHieDb IndexQueue
hieChan = do
                  (String -> IO ()) -> Maybe String -> IO ()
forall (t :: * -> *) (f :: * -> *) a b.
(Foldable t, Applicative f) =>
(a -> f b) -> t a -> f ()
traverse_ String -> IO ()
IO.setCurrentDirectory Maybe String
rootPath
                  Seconds
t <- IO Seconds
ioT
                  Recorder (WithPriority Log) -> Priority -> Log -> IO ()
forall (m :: * -> *) msg.
(HasCallStack, MonadIO m) =>
Recorder (WithPriority msg) -> Priority -> msg -> m ()
logWith Recorder (WithPriority Log)
recorder Priority
Info (Log -> IO ()) -> Log -> IO ()
forall a b. (a -> b) -> a -> b
$ Seconds -> Log
LogLspStartDuration Seconds
t

                  String
dir <- IO String -> (String -> IO String) -> Maybe String -> IO String
forall b a. b -> (a -> b) -> Maybe a -> b
maybe IO String
IO.getCurrentDirectory String -> IO String
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return Maybe String
rootPath

                  -- We want to set the global DynFlags right now, so that we can use
                  -- `unsafeGlobalDynFlags` even before the project is configured
                  Maybe LibDir
_mlibdir <-
                      Recorder (WithPriority Log)
-> String -> SessionLoadingOptions -> IO (Maybe LibDir)
setInitialDynFlags ((Log -> Log)
-> Recorder (WithPriority Log) -> Recorder (WithPriority Log)
forall a b.
(a -> b) -> Recorder (WithPriority b) -> Recorder (WithPriority a)
cmapWithPrio Log -> Log
LogSession Recorder (WithPriority Log)
recorder) String
dir SessionLoadingOptions
argsSessionLoadingOptions
                          -- TODO: should probably catch/log/rethrow at top level instead
                          IO (Maybe LibDir)
-> (SomeException -> IO (Maybe LibDir)) -> IO (Maybe LibDir)
forall (m :: * -> *) a.
(HasCallStack, MonadCatch m) =>
m a -> (SomeException -> m a) -> m a
`catchAny` (\SomeException
e -> Recorder (WithPriority Log) -> Priority -> Log -> IO ()
forall (m :: * -> *) msg.
(HasCallStack, MonadIO m) =>
Recorder (WithPriority msg) -> Priority -> msg -> m ()
logWith Recorder (WithPriority Log)
recorder Priority
Error (SomeException -> Log
LogSetInitialDynFlagsException SomeException
e) IO () -> IO (Maybe LibDir) -> IO (Maybe LibDir)
forall a b. IO a -> IO b -> IO b
forall (m :: * -> *) a b. Monad m => m a -> m b -> m b
>> Maybe LibDir -> IO (Maybe LibDir)
forall a. a -> IO a
forall (f :: * -> *) a. Applicative f => a -> f a
pure Maybe LibDir
forall a. Maybe a
Nothing)

                  Action IdeGhcSession
sessionLoader <- Recorder (WithPriority Log)
-> SessionLoadingOptions -> String -> IO (Action IdeGhcSession)
loadSessionWithOptions ((Log -> Log)
-> Recorder (WithPriority Log) -> Recorder (WithPriority Log)
forall a b.
(a -> b) -> Recorder (WithPriority b) -> Recorder (WithPriority a)
cmapWithPrio Log -> Log
LogSession Recorder (WithPriority Log)
recorder) SessionLoadingOptions
argsSessionLoadingOptions String
dir
                  Config
config <- LanguageContextEnv Config -> LspT Config IO Config -> IO Config
forall config (m :: * -> *) a.
LanguageContextEnv config -> LspT config m a -> m a
LSP.runLspT LanguageContextEnv Config
env LspT Config IO Config
forall config (m :: * -> *). MonadLsp config m => m config
LSP.getConfig
                  let def_options :: IdeOptions
def_options = Config -> Action IdeGhcSession -> IdeOptions
argsIdeOptions Config
config Action IdeGhcSession
sessionLoader

                  -- disable runSubset if the client doesn't support watched files
                  Bool
runSubset <- (IdeOptions -> Bool
optRunSubset IdeOptions
def_options &&) (Bool -> Bool) -> IO Bool -> IO Bool
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> LanguageContextEnv Config -> LspT Config IO Bool -> IO Bool
forall config (m :: * -> *) a.
LanguageContextEnv config -> LspT config m a -> m a
LSP.runLspT LanguageContextEnv Config
env LspT Config IO Bool
isWatchSupported
                  Recorder (WithPriority Log) -> Priority -> Log -> IO ()
forall (m :: * -> *) msg.
(HasCallStack, MonadIO m) =>
Recorder (WithPriority msg) -> Priority -> msg -> m ()
logWith Recorder (WithPriority Log)
recorder Priority
Debug (Log -> IO ()) -> Log -> IO ()
forall a b. (a -> b) -> a -> b
$ Bool -> Log
LogShouldRunSubset Bool
runSubset

                  let ideOptions :: IdeOptions
ideOptions = IdeOptions
def_options
                              { optReportProgress = clientSupportsProgress caps
                              , optModifyDynFlags = optModifyDynFlags def_options <> pluginModifyDynflags plugins
                              , optRunSubset = runSubset
                              }
                      caps :: ClientCapabilities
caps = LanguageContextEnv Config -> ClientCapabilities
forall config. LanguageContextEnv config -> ClientCapabilities
LSP.resClientCapabilities LanguageContextEnv Config
env
                  Monitoring
monitoring <- IO Monitoring
argsMonitoring
                  IdeState
ide <- Recorder (WithPriority Log)
-> Config
-> IdePlugins IdeState
-> Rules ()
-> Maybe (LanguageContextEnv Config)
-> Logger
-> Debouncer NormalizedUri
-> IdeOptions
-> WithHieDb
-> IndexQueue
-> Monitoring
-> IO IdeState
initialise
                      ((Log -> Log)
-> Recorder (WithPriority Log) -> Recorder (WithPriority Log)
forall a b.
(a -> b) -> Recorder (WithPriority b) -> Recorder (WithPriority a)
cmapWithPrio Log -> Log
LogService Recorder (WithPriority Log)
recorder)
                      Config
argsDefaultHlsConfig
                      IdePlugins IdeState
argsHlsPlugins
                      Rules ()
rules
                      (LanguageContextEnv Config -> Maybe (LanguageContextEnv Config)
forall a. a -> Maybe a
Just LanguageContextEnv Config
env)
                      Logger
logger
                      Debouncer NormalizedUri
debouncer
                      IdeOptions
ideOptions
                      (HieDb -> IO a) -> IO a
WithHieDb
withHieDb
                      IndexQueue
hieChan
                      Monitoring
monitoring
                  MVar IdeState -> IdeState -> IO ()
forall a. MVar a -> a -> IO ()
putMVar MVar IdeState
ideStateVar IdeState
ide
                  IdeState -> IO IdeState
forall a. a -> IO a
forall (f :: * -> *) a. Applicative f => a -> f a
pure IdeState
ide

            let setup :: MVar ()
-> IO
     (LanguageContextEnv Config
      -> TRequestMessage 'Method_Initialize
      -> IO (Either err (LanguageContextEnv Config, IdeState)),
      Handlers (ServerM Config),
      (LanguageContextEnv Config, IdeState) -> ServerM Config <~> IO)
setup = Recorder (WithPriority Log)
-> (String -> IO String)
-> Handlers (ServerM Config)
-> (LanguageContextEnv Config
    -> Maybe String -> WithHieDb -> IndexQueue -> IO IdeState)
-> MVar ()
-> IO
     (LanguageContextEnv Config
      -> TRequestMessage 'Method_Initialize
      -> IO (Either err (LanguageContextEnv Config, IdeState)),
      Handlers (ServerM Config),
      (LanguageContextEnv Config, IdeState) -> ServerM Config <~> IO)
forall config err.
Recorder (WithPriority Log)
-> (String -> IO String)
-> Handlers (ServerM config)
-> (LanguageContextEnv config
    -> Maybe String -> WithHieDb -> IndexQueue -> IO IdeState)
-> MVar ()
-> IO
     (LanguageContextEnv config
      -> TRequestMessage 'Method_Initialize
      -> IO (Either err (LanguageContextEnv config, IdeState)),
      Handlers (ServerM config),
      (LanguageContextEnv config, IdeState) -> ServerM config <~> IO)
setupLSP ((Log -> Log)
-> Recorder (WithPriority Log) -> Recorder (WithPriority Log)
forall a b.
(a -> b) -> Recorder (WithPriority b) -> Recorder (WithPriority a)
cmapWithPrio Log -> Log
LogLanguageServer Recorder (WithPriority Log)
recorder) String -> IO String
argsGetHieDbLoc (Plugin Config -> Handlers (ServerM Config)
forall c. Plugin c -> Handlers (ServerM c)
pluginHandlers Plugin Config
plugins) LanguageContextEnv Config
-> Maybe String -> WithHieDb -> IndexQueue -> IO IdeState
getIdeState
                -- See Note [Client configuration in Rules]
                onConfigChange :: p -> m ()
onConfigChange p
cfg = do
                  -- TODO: this is nuts, we're converting back to JSON just to get a fingerprint
                  let cfgObj :: Value
cfgObj = p -> Value
forall a. ToJSON a => a -> Value
J.toJSON p
cfg
                  Maybe IdeState
mide <- IO (Maybe IdeState) -> m (Maybe IdeState)
forall a. IO a -> m a
forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO (IO (Maybe IdeState) -> m (Maybe IdeState))
-> IO (Maybe IdeState) -> m (Maybe IdeState)
forall a b. (a -> b) -> a -> b
$ MVar IdeState -> IO (Maybe IdeState)
forall a. MVar a -> IO (Maybe a)
tryReadMVar MVar IdeState
ideStateVar
                  case Maybe IdeState
mide of
                    Maybe IdeState
Nothing -> () -> m ()
forall a. a -> m a
forall (f :: * -> *) a. Applicative f => a -> f a
pure ()
                    Just IdeState
ide -> IO () -> m ()
forall a. IO a -> m a
forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO (IO () -> m ()) -> IO () -> m ()
forall a b. (a -> b) -> a -> b
$ do
                        let msg :: Text
msg = String -> Text
T.pack (String -> Text) -> String -> Text
forall a b. (a -> b) -> a -> b
$ p -> String
forall a. Show a => a -> String
show p
cfg
                        Logger -> Text -> IO ()
logDebug (IdeState -> Logger
Shake.ideLogger IdeState
ide) (Text -> IO ()) -> Text -> IO ()
forall a b. (a -> b) -> a -> b
$ Text
"Configuration changed: " Text -> Text -> Text
forall a. Semigroup a => a -> a -> a
<> Text
msg
                        IdeState -> (Maybe Value -> Maybe Value) -> IO ()
modifyClientSettings IdeState
ide (Maybe Value -> Maybe Value -> Maybe Value
forall a b. a -> b -> a
const (Maybe Value -> Maybe Value -> Maybe Value)
-> Maybe Value -> Maybe Value -> Maybe Value
forall a b. (a -> b) -> a -> b
$ Value -> Maybe Value
forall a. a -> Maybe a
Just Value
cfgObj)
                        VFSModified -> IdeState -> [Key] -> String -> IO ()
setSomethingModified VFSModified
Shake.VFSUnmodified IdeState
ide [GetClientSettings -> NormalizedFilePath -> Key
forall k. ShakeValue k => k -> NormalizedFilePath -> Key
toKey GetClientSettings
Rules.GetClientSettings NormalizedFilePath
emptyFilePath] String
"config change"

            Recorder (WithPriority Log)
-> Options
-> Handle
-> Handle
-> Config
-> (Config -> Value -> Either Text Config)
-> (Config -> ServerM Config ())
-> (MVar ()
    -> IO
         (LanguageContextEnv Config
          -> TRequestMessage 'Method_Initialize
          -> IO (Either ResponseError (LanguageContextEnv Config, IdeState)),
          Handlers (ServerM Config),
          (LanguageContextEnv Config, IdeState) -> ServerM Config <~> IO))
-> IO ()
forall config a (m :: * -> * -> *).
Show config =>
Recorder (WithPriority Log)
-> Options
-> Handle
-> Handle
-> config
-> (config -> Value -> Either Text config)
-> (config -> m config ())
-> (MVar ()
    -> IO
         (LanguageContextEnv config
          -> TRequestMessage 'Method_Initialize
          -> IO (Either ResponseError (LanguageContextEnv config, a)),
          Handlers (m config),
          (LanguageContextEnv config, a) -> m config <~> IO))
-> IO ()
runLanguageServer ((Log -> Log)
-> Recorder (WithPriority Log) -> Recorder (WithPriority Log)
forall a b.
(a -> b) -> Recorder (WithPriority b) -> Recorder (WithPriority a)
cmapWithPrio Log -> Log
LogLanguageServer Recorder (WithPriority Log)
recorder) Options
options Handle
inH Handle
outH Config
argsDefaultHlsConfig Config -> Value -> Either Text Config
argsParseConfig Config -> ServerM Config ()
forall {m :: * -> *} {p}.
(MonadIO m, ToJSON p, Show p) =>
p -> m ()
onConfigChange MVar ()
-> IO
     (LanguageContextEnv Config
      -> TRequestMessage 'Method_Initialize
      -> IO (Either ResponseError (LanguageContextEnv Config, IdeState)),
      Handlers (ServerM Config),
      (LanguageContextEnv Config, IdeState) -> ServerM Config <~> IO)
forall {err}.
MVar ()
-> IO
     (LanguageContextEnv Config
      -> TRequestMessage 'Method_Initialize
      -> IO (Either err (LanguageContextEnv Config, IdeState)),
      Handlers (ServerM Config),
      (LanguageContextEnv Config, IdeState) -> ServerM Config <~> IO)
setup
            IO ()
dumpSTMStats
        Check [String]
argFiles -> do
          String
dir <- IO String -> (String -> IO String) -> Maybe String -> IO String
forall b a. b -> (a -> b) -> Maybe a -> b
maybe IO String
IO.getCurrentDirectory String -> IO String
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return Maybe String
argsProjectRoot
          String
dbLoc <- String -> IO String
getHieDbLoc String
dir
          Recorder (WithPriority Log)
-> String -> (WithHieDb -> IndexQueue -> IO ()) -> IO ()
runWithDb ((Log -> Log)
-> Recorder (WithPriority Log) -> Recorder (WithPriority Log)
forall a b.
(a -> b) -> Recorder (WithPriority b) -> Recorder (WithPriority a)
cmapWithPrio Log -> Log
LogSession Recorder (WithPriority Log)
recorder) String
dbLoc ((WithHieDb -> IndexQueue -> IO ()) -> IO ())
-> (WithHieDb -> IndexQueue -> IO ()) -> IO ()
forall a b. (a -> b) -> a -> b
$ \WithHieDb
hiedb IndexQueue
hieChan -> do
            -- GHC produces messages with UTF8 in them, so make sure the terminal doesn't error
            Handle -> TextEncoding -> IO ()
hSetEncoding Handle
stdout TextEncoding
utf8
            Handle -> TextEncoding -> IO ()
hSetEncoding Handle
stderr TextEncoding
utf8

            String -> IO ()
putStrLn (String -> IO ()) -> String -> IO ()
forall a b. (a -> b) -> a -> b
$ String
"ghcide setup tester in " String -> ShowS
forall a. [a] -> [a] -> [a]
++ String
dir String -> ShowS
forall a. [a] -> [a] -> [a]
++ String
"."
            String -> IO ()
putStrLn String
"Report bugs at https://github.com/haskell/haskell-language-server/issues"

            String -> IO ()
putStrLn (String -> IO ()) -> String -> IO ()
forall a b. (a -> b) -> a -> b
$ String
"\nStep 1/4: Finding files to test in " String -> ShowS
forall a. [a] -> [a] -> [a]
++ String
dir
            [String]
files <- [String] -> IO [String]
expandFiles ([String]
argFiles [String] -> [String] -> [String]
forall a. [a] -> [a] -> [a]
++ [String
"." | [String] -> Bool
forall a. [a] -> Bool
forall (t :: * -> *) a. Foldable t => t a -> Bool
null [String]
argFiles])
            -- LSP works with absolute file paths, so try and behave similarly
            [String]
absoluteFiles <- [String] -> [String]
forall a. Ord a => [a] -> [a]
nubOrd ([String] -> [String]) -> IO [String] -> IO [String]
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> (String -> IO String) -> [String] -> IO [String]
forall (t :: * -> *) (m :: * -> *) a b.
(Traversable t, Monad m) =>
(a -> m b) -> t a -> m (t b)
forall (m :: * -> *) a b. Monad m => (a -> m b) -> [a] -> m [b]
mapM String -> IO String
IO.canonicalizePath [String]
files
            String -> IO ()
putStrLn (String -> IO ()) -> String -> IO ()
forall a b. (a -> b) -> a -> b
$ String
"Found " String -> ShowS
forall a. [a] -> [a] -> [a]
++ Int -> String
forall a. Show a => a -> String
show ([String] -> Int
forall a. [a] -> Int
forall (t :: * -> *) a. Foldable t => t a -> Int
length [String]
absoluteFiles) String -> ShowS
forall a. [a] -> [a] -> [a]
++ String
" files"

            String -> IO ()
putStrLn String
"\nStep 2/4: Looking for hie.yaml files that control setup"
            [Maybe String]
cradles <- (String -> IO (Maybe String)) -> [String] -> IO [Maybe String]
forall (t :: * -> *) (m :: * -> *) a b.
(Traversable t, Monad m) =>
(a -> m b) -> t a -> m (t b)
forall (m :: * -> *) a b. Monad m => (a -> m b) -> [a] -> m [b]
mapM String -> IO (Maybe String)
findCradle [String]
absoluteFiles
            let ucradles :: [Maybe String]
ucradles = [Maybe String] -> [Maybe String]
forall a. Ord a => [a] -> [a]
nubOrd [Maybe String]
cradles
            let n :: Int
n = [Maybe String] -> Int
forall a. [a] -> Int
forall (t :: * -> *) a. Foldable t => t a -> Int
length [Maybe String]
ucradles
            String -> IO ()
putStrLn (String -> IO ()) -> String -> IO ()
forall a b. (a -> b) -> a -> b
$ String
"Found " String -> ShowS
forall a. [a] -> [a] -> [a]
++ Int -> String
forall a. Show a => a -> String
show Int
n String -> ShowS
forall a. [a] -> [a] -> [a]
++ String
" cradle" String -> ShowS
forall a. [a] -> [a] -> [a]
++ [Char
's' | Int
n Int -> Int -> Bool
forall a. Eq a => a -> a -> Bool
/= Int
1]
            Bool -> IO () -> IO ()
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when (Int
n Int -> Int -> Bool
forall a. Ord a => a -> a -> Bool
> Int
0) (IO () -> IO ()) -> IO () -> IO ()
forall a b. (a -> b) -> a -> b
$ String -> IO ()
putStrLn (String -> IO ()) -> String -> IO ()
forall a b. (a -> b) -> a -> b
$ String
"  (" String -> ShowS
forall a. [a] -> [a] -> [a]
++ String -> [String] -> String
forall a. [a] -> [[a]] -> [a]
intercalate String
", " ([Maybe String] -> [String]
forall a. [Maybe a] -> [a]
catMaybes [Maybe String]
ucradles) String -> ShowS
forall a. [a] -> [a] -> [a]
++ String
")"
            String -> IO ()
putStrLn String
"\nStep 3/4: Initializing the IDE"
            Action IdeGhcSession
sessionLoader <- Recorder (WithPriority Log)
-> SessionLoadingOptions -> String -> IO (Action IdeGhcSession)
loadSessionWithOptions ((Log -> Log)
-> Recorder (WithPriority Log) -> Recorder (WithPriority Log)
forall a b.
(a -> b) -> Recorder (WithPriority b) -> Recorder (WithPriority a)
cmapWithPrio Log -> Log
LogSession Recorder (WithPriority Log)
recorder) SessionLoadingOptions
argsSessionLoadingOptions String
dir
            let def_options :: IdeOptions
def_options = Config -> Action IdeGhcSession -> IdeOptions
argsIdeOptions Config
argsDefaultHlsConfig Action IdeGhcSession
sessionLoader
                ideOptions :: IdeOptions
ideOptions = IdeOptions
def_options
                        { optCheckParents = pure NeverCheck
                        , optCheckProject = pure False
                        , optModifyDynFlags = optModifyDynFlags def_options <> pluginModifyDynflags plugins
                        }
            IdeState
ide <- Recorder (WithPriority Log)
-> Config
-> IdePlugins IdeState
-> Rules ()
-> Maybe (LanguageContextEnv Config)
-> Logger
-> Debouncer NormalizedUri
-> IdeOptions
-> WithHieDb
-> IndexQueue
-> Monitoring
-> IO IdeState
initialise ((Log -> Log)
-> Recorder (WithPriority Log) -> Recorder (WithPriority Log)
forall a b.
(a -> b) -> Recorder (WithPriority b) -> Recorder (WithPriority a)
cmapWithPrio Log -> Log
LogService Recorder (WithPriority Log)
recorder) Config
argsDefaultHlsConfig IdePlugins IdeState
argsHlsPlugins Rules ()
rules Maybe (LanguageContextEnv Config)
forall a. Maybe a
Nothing Logger
logger Debouncer NormalizedUri
debouncer IdeOptions
ideOptions (HieDb -> IO a) -> IO a
WithHieDb
hiedb IndexQueue
hieChan Monitoring
forall a. Monoid a => a
mempty
            Recorder (WithPriority Log) -> IdeState -> IO ()
shakeSessionInit ((Log -> Log)
-> Recorder (WithPriority Log) -> Recorder (WithPriority Log)
forall a b.
(a -> b) -> Recorder (WithPriority b) -> Recorder (WithPriority a)
cmapWithPrio Log -> Log
LogShake Recorder (WithPriority Log)
recorder) IdeState
ide
            ShakeExtras -> IdeConfiguration -> IO ()
registerIdeConfiguration (IdeState -> ShakeExtras
shakeExtras IdeState
ide) (IdeConfiguration -> IO ()) -> IdeConfiguration -> IO ()
forall a b. (a -> b) -> a -> b
$ HashSet NormalizedUri -> Hashed (Maybe Value) -> IdeConfiguration
IdeConfiguration HashSet NormalizedUri
forall a. Monoid a => a
mempty (Maybe Value -> Hashed (Maybe Value)
forall a. Hashable a => a -> Hashed a
hashed Maybe Value
forall a. Maybe a
Nothing)

            String -> IO ()
putStrLn String
"\nStep 4/4: Type checking the files"
            IdeState
-> HashMap NormalizedFilePath FileOfInterestStatus -> IO ()
setFilesOfInterest IdeState
ide (HashMap NormalizedFilePath FileOfInterestStatus -> IO ())
-> HashMap NormalizedFilePath FileOfInterestStatus -> IO ()
forall a b. (a -> b) -> a -> b
$ [(NormalizedFilePath, FileOfInterestStatus)]
-> HashMap NormalizedFilePath FileOfInterestStatus
forall k v. (Eq k, Hashable k) => [(k, v)] -> HashMap k v
HashMap.fromList ([(NormalizedFilePath, FileOfInterestStatus)]
 -> HashMap NormalizedFilePath FileOfInterestStatus)
-> [(NormalizedFilePath, FileOfInterestStatus)]
-> HashMap NormalizedFilePath FileOfInterestStatus
forall a b. (a -> b) -> a -> b
$ (String -> (NormalizedFilePath, FileOfInterestStatus))
-> [String] -> [(NormalizedFilePath, FileOfInterestStatus)]
forall a b. (a -> b) -> [a] -> [b]
map ((,FileOfInterestStatus
OnDisk) (NormalizedFilePath -> (NormalizedFilePath, FileOfInterestStatus))
-> (String -> NormalizedFilePath)
-> String
-> (NormalizedFilePath, FileOfInterestStatus)
forall b c a. (b -> c) -> (a -> b) -> a -> c
. String -> NormalizedFilePath
toNormalizedFilePath') [String]
absoluteFiles
            [Maybe TcModuleResult]
results <- String
-> IdeState
-> Action [Maybe TcModuleResult]
-> IO [Maybe TcModuleResult]
forall a. String -> IdeState -> Action a -> IO a
runAction String
"User TypeCheck" IdeState
ide (Action [Maybe TcModuleResult] -> IO [Maybe TcModuleResult])
-> Action [Maybe TcModuleResult] -> IO [Maybe TcModuleResult]
forall a b. (a -> b) -> a -> b
$ TypeCheck -> [NormalizedFilePath] -> Action [Maybe TcModuleResult]
forall (f :: * -> *) k v.
(Traversable f, IdeRule k v) =>
k -> f NormalizedFilePath -> Action (f (Maybe v))
uses TypeCheck
TypeCheck ((String -> NormalizedFilePath) -> [String] -> [NormalizedFilePath]
forall a b. (a -> b) -> [a] -> [b]
map String -> NormalizedFilePath
toNormalizedFilePath' [String]
absoluteFiles)
            [Maybe HieAstResult]
_results <- String
-> IdeState
-> Action [Maybe HieAstResult]
-> IO [Maybe HieAstResult]
forall a. String -> IdeState -> Action a -> IO a
runAction String
"GetHie" IdeState
ide (Action [Maybe HieAstResult] -> IO [Maybe HieAstResult])
-> Action [Maybe HieAstResult] -> IO [Maybe HieAstResult]
forall a b. (a -> b) -> a -> b
$ GetHieAst -> [NormalizedFilePath] -> Action [Maybe HieAstResult]
forall (f :: * -> *) k v.
(Traversable f, IdeRule k v) =>
k -> f NormalizedFilePath -> Action (f (Maybe v))
uses GetHieAst
GetHieAst ((String -> NormalizedFilePath) -> [String] -> [NormalizedFilePath]
forall a b. (a -> b) -> [a] -> [b]
map String -> NormalizedFilePath
toNormalizedFilePath' [String]
absoluteFiles)
            [Maybe ModGuts]
_results <- String -> IdeState -> Action [Maybe ModGuts] -> IO [Maybe ModGuts]
forall a. String -> IdeState -> Action a -> IO a
runAction String
"GenerateCore" IdeState
ide (Action [Maybe ModGuts] -> IO [Maybe ModGuts])
-> Action [Maybe ModGuts] -> IO [Maybe ModGuts]
forall a b. (a -> b) -> a -> b
$ GenerateCore -> [NormalizedFilePath] -> Action [Maybe ModGuts]
forall (f :: * -> *) k v.
(Traversable f, IdeRule k v) =>
k -> f NormalizedFilePath -> Action (f (Maybe v))
uses GenerateCore
GenerateCore ((String -> NormalizedFilePath) -> [String] -> [NormalizedFilePath]
forall a b. (a -> b) -> [a] -> [b]
map String -> NormalizedFilePath
toNormalizedFilePath' [String]
absoluteFiles)
            let ([(Bool, String)]
worked, [(Bool, String)]
failed) = ((Bool, String) -> Bool)
-> [(Bool, String)] -> ([(Bool, String)], [(Bool, String)])
forall a. (a -> Bool) -> [a] -> ([a], [a])
partition (Bool, String) -> Bool
forall a b. (a, b) -> a
fst ([(Bool, String)] -> ([(Bool, String)], [(Bool, String)]))
-> [(Bool, String)] -> ([(Bool, String)], [(Bool, String)])
forall a b. (a -> b) -> a -> b
$ [Bool] -> [String] -> [(Bool, String)]
forall a b. [a] -> [b] -> [(a, b)]
zip ((Maybe TcModuleResult -> Bool) -> [Maybe TcModuleResult] -> [Bool]
forall a b. (a -> b) -> [a] -> [b]
map Maybe TcModuleResult -> Bool
forall a. Maybe a -> Bool
isJust [Maybe TcModuleResult]
results) [String]
absoluteFiles
            Bool -> IO () -> IO ()
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when ([(Bool, String)]
failed [(Bool, String)] -> [(Bool, String)] -> Bool
forall a. Eq a => a -> a -> Bool
/= []) (IO () -> IO ()) -> IO () -> IO ()
forall a b. (a -> b) -> a -> b
$
                String -> IO ()
putStr (String -> IO ()) -> String -> IO ()
forall a b. (a -> b) -> a -> b
$ [String] -> String
unlines ([String] -> String) -> [String] -> String
forall a b. (a -> b) -> a -> b
$ String
"Files that failed:" String -> [String] -> [String]
forall a. a -> [a] -> [a]
: ((Bool, String) -> String) -> [(Bool, String)] -> [String]
forall a b. (a -> b) -> [a] -> [b]
map (String -> ShowS
forall a. [a] -> [a] -> [a]
(++) String
" * " ShowS -> ((Bool, String) -> String) -> (Bool, String) -> String
forall b c a. (b -> c) -> (a -> b) -> a -> c
. (Bool, String) -> String
forall a b. (a, b) -> b
snd) [(Bool, String)]
failed

            let nfiles :: t a -> String
nfiles t a
xs = let n' :: Int
n' = t a -> Int
forall a. t a -> Int
forall (t :: * -> *) a. Foldable t => t a -> Int
length t a
xs in if Int
n' Int -> Int -> Bool
forall a. Eq a => a -> a -> Bool
== Int
1 then String
"1 file" else Int -> String
forall a. Show a => a -> String
show Int
n' String -> ShowS
forall a. [a] -> [a] -> [a]
++ String
" files"
            String -> IO ()
putStrLn (String -> IO ()) -> String -> IO ()
forall a b. (a -> b) -> a -> b
$ String
"\nCompleted (" String -> ShowS
forall a. [a] -> [a] -> [a]
++ [(Bool, String)] -> String
forall {t :: * -> *} {a}. Foldable t => t a -> String
nfiles [(Bool, String)]
worked String -> ShowS
forall a. [a] -> [a] -> [a]
++ String
" worked, " String -> ShowS
forall a. [a] -> [a] -> [a]
++ [(Bool, String)] -> String
forall {t :: * -> *} {a}. Foldable t => t a -> String
nfiles [(Bool, String)]
failed String -> ShowS
forall a. [a] -> [a] -> [a]
++ String
" failed)"

            Bool -> IO () -> IO ()
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
unless ([(Bool, String)] -> Bool
forall a. [a] -> Bool
forall (t :: * -> *) a. Foldable t => t a -> Bool
null [(Bool, String)]
failed) (ExitCode -> IO ()
forall a. ExitCode -> IO a
exitWith (ExitCode -> IO ()) -> ExitCode -> IO ()
forall a b. (a -> b) -> a -> b
$ Int -> ExitCode
ExitFailure ([(Bool, String)] -> Int
forall a. [a] -> Int
forall (t :: * -> *) a. Foldable t => t a -> Int
length [(Bool, String)]
failed))
        Db Options
opts Command
cmd -> do
            String
root <-  IO String -> (String -> IO String) -> Maybe String -> IO String
forall b a. b -> (a -> b) -> Maybe a -> b
maybe IO String
IO.getCurrentDirectory String -> IO String
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return Maybe String
argsProjectRoot
            String
dbLoc <- String -> IO String
getHieDbLoc String
root
            Handle -> String -> IO ()
hPutStrLn Handle
stderr (String -> IO ()) -> String -> IO ()
forall a b. (a -> b) -> a -> b
$ String
"Using hiedb at: " String -> ShowS
forall a. [a] -> [a] -> [a]
++ String
dbLoc
            Maybe LibDir
mlibdir <- Recorder (WithPriority Log)
-> String -> SessionLoadingOptions -> IO (Maybe LibDir)
setInitialDynFlags ((Log -> Log)
-> Recorder (WithPriority Log) -> Recorder (WithPriority Log)
forall a b.
(a -> b) -> Recorder (WithPriority b) -> Recorder (WithPriority a)
cmapWithPrio Log -> Log
LogSession Recorder (WithPriority Log)
recorder) String
root SessionLoadingOptions
forall a. Default a => a
def
            StdGen
rng <- IO StdGen
forall (m :: * -> *). MonadIO m => m StdGen
newStdGen
            case Maybe LibDir
mlibdir of
                Maybe LibDir
Nothing     -> ExitCode -> IO ()
forall a. ExitCode -> IO a
exitWith (ExitCode -> IO ()) -> ExitCode -> IO ()
forall a b. (a -> b) -> a -> b
$ Int -> ExitCode
ExitFailure Int
1
                Just LibDir
libdir -> Recorder (WithPriority Log) -> StdGen -> IO () -> IO ()
forall (m :: * -> *) g a.
(MonadIO m, MonadCatch m, RandomGen g) =>
Recorder (WithPriority Log) -> g -> m a -> m a
retryOnSqliteBusy ((Log -> Log)
-> Recorder (WithPriority Log) -> Recorder (WithPriority Log)
forall a b.
(a -> b) -> Recorder (WithPriority b) -> Recorder (WithPriority a)
cmapWithPrio Log -> Log
LogSession Recorder (WithPriority Log)
recorder) StdGen
rng (LibDir -> Options -> Command -> IO ()
HieDb.runCommand LibDir
libdir Options
opts{HieDb.database = dbLoc} Command
cmd)

        Custom (IdeCommand IdeState -> IO ()
c) -> do
          String
root <-  IO String -> (String -> IO String) -> Maybe String -> IO String
forall b a. b -> (a -> b) -> Maybe a -> b
maybe IO String
IO.getCurrentDirectory String -> IO String
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return Maybe String
argsProjectRoot
          String
dbLoc <- String -> IO String
getHieDbLoc String
root
          Recorder (WithPriority Log)
-> String -> (WithHieDb -> IndexQueue -> IO ()) -> IO ()
runWithDb ((Log -> Log)
-> Recorder (WithPriority Log) -> Recorder (WithPriority Log)
forall a b.
(a -> b) -> Recorder (WithPriority b) -> Recorder (WithPriority a)
cmapWithPrio Log -> Log
LogSession Recorder (WithPriority Log)
recorder) String
dbLoc ((WithHieDb -> IndexQueue -> IO ()) -> IO ())
-> (WithHieDb -> IndexQueue -> IO ()) -> IO ()
forall a b. (a -> b) -> a -> b
$ \WithHieDb
hiedb IndexQueue
hieChan -> do
            Action IdeGhcSession
sessionLoader <- Recorder (WithPriority Log)
-> SessionLoadingOptions -> String -> IO (Action IdeGhcSession)
loadSessionWithOptions ((Log -> Log)
-> Recorder (WithPriority Log) -> Recorder (WithPriority Log)
forall a b.
(a -> b) -> Recorder (WithPriority b) -> Recorder (WithPriority a)
cmapWithPrio Log -> Log
LogSession Recorder (WithPriority Log)
recorder) SessionLoadingOptions
argsSessionLoadingOptions String
"."
            let def_options :: IdeOptions
def_options = Config -> Action IdeGhcSession -> IdeOptions
argsIdeOptions Config
argsDefaultHlsConfig Action IdeGhcSession
sessionLoader
                ideOptions :: IdeOptions
ideOptions = IdeOptions
def_options
                    { optCheckParents = pure NeverCheck
                    , optCheckProject = pure False
                    , optModifyDynFlags = optModifyDynFlags def_options <> pluginModifyDynflags plugins
                    }
            IdeState
ide <- Recorder (WithPriority Log)
-> Config
-> IdePlugins IdeState
-> Rules ()
-> Maybe (LanguageContextEnv Config)
-> Logger
-> Debouncer NormalizedUri
-> IdeOptions
-> WithHieDb
-> IndexQueue
-> Monitoring
-> IO IdeState
initialise ((Log -> Log)
-> Recorder (WithPriority Log) -> Recorder (WithPriority Log)
forall a b.
(a -> b) -> Recorder (WithPriority b) -> Recorder (WithPriority a)
cmapWithPrio Log -> Log
LogService Recorder (WithPriority Log)
recorder) Config
argsDefaultHlsConfig IdePlugins IdeState
argsHlsPlugins Rules ()
rules Maybe (LanguageContextEnv Config)
forall a. Maybe a
Nothing Logger
logger Debouncer NormalizedUri
debouncer IdeOptions
ideOptions (HieDb -> IO a) -> IO a
WithHieDb
hiedb IndexQueue
hieChan Monitoring
forall a. Monoid a => a
mempty
            Recorder (WithPriority Log) -> IdeState -> IO ()
shakeSessionInit ((Log -> Log)
-> Recorder (WithPriority Log) -> Recorder (WithPriority Log)
forall a b.
(a -> b) -> Recorder (WithPriority b) -> Recorder (WithPriority a)
cmapWithPrio Log -> Log
LogShake Recorder (WithPriority Log)
recorder) IdeState
ide
            ShakeExtras -> IdeConfiguration -> IO ()
registerIdeConfiguration (IdeState -> ShakeExtras
shakeExtras IdeState
ide) (IdeConfiguration -> IO ()) -> IdeConfiguration -> IO ()
forall a b. (a -> b) -> a -> b
$ HashSet NormalizedUri -> Hashed (Maybe Value) -> IdeConfiguration
IdeConfiguration HashSet NormalizedUri
forall a. Monoid a => a
mempty (Maybe Value -> Hashed (Maybe Value)
forall a. Hashable a => a -> Hashed a
hashed Maybe Value
forall a. Maybe a
Nothing)
            IdeState -> IO ()
c IdeState
ide

expandFiles :: [FilePath] -> IO [FilePath]
expandFiles :: [String] -> IO [String]
expandFiles = (String -> IO [String]) -> [String] -> IO [String]
forall (m :: * -> *) a b. Monad m => (a -> m [b]) -> [a] -> m [b]
concatMapM ((String -> IO [String]) -> [String] -> IO [String])
-> (String -> IO [String]) -> [String] -> IO [String]
forall a b. (a -> b) -> a -> b
$ \String
x -> do
    Bool
b <- String -> IO Bool
IO.doesFileExist String
x
    if Bool
b
        then [String] -> IO [String]
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return [String
x]
        else do
            let recurse :: String -> Bool
recurse String
"." = Bool
True
                recurse String
y | String
"." String -> String -> Bool
forall a. Eq a => [a] -> [a] -> Bool
`isPrefixOf` ShowS
takeFileName String
y = Bool
False -- skip .git etc
                recurse String
y = ShowS
takeFileName String
y String -> [String] -> Bool
forall (t :: * -> *) a. (Foldable t, Eq a) => a -> t a -> Bool
`notElem` [String
"dist", String
"dist-newstyle"] -- cabal directories
            [String]
files <- (String -> Bool) -> [String] -> [String]
forall a. (a -> Bool) -> [a] -> [a]
filter (\String
y -> ShowS
takeExtension String
y String -> [String] -> Bool
forall a. Eq a => a -> [a] -> Bool
forall (t :: * -> *) a. (Foldable t, Eq a) => a -> t a -> Bool
`elem` [String
".hs", String
".lhs"]) ([String] -> [String]) -> IO [String] -> IO [String]
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> (String -> IO Bool) -> String -> IO [String]
IO.listFilesInside (Bool -> IO Bool
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return (Bool -> IO Bool) -> (String -> Bool) -> String -> IO Bool
forall b c a. (b -> c) -> (a -> b) -> a -> c
. String -> Bool
recurse) String
x
            Bool -> IO () -> IO ()
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when ([String] -> Bool
forall a. [a] -> Bool
forall (t :: * -> *) a. Foldable t => t a -> Bool
null [String]
files) (IO () -> IO ()) -> IO () -> IO ()
forall a b. (a -> b) -> a -> b
$
                String -> IO ()
forall a. String -> IO a
forall (m :: * -> *) a. MonadFail m => String -> m a
fail (String -> IO ()) -> String -> IO ()
forall a b. (a -> b) -> a -> b
$ String
"Couldn't find any .hs/.lhs files inside directory: " String -> ShowS
forall a. [a] -> [a] -> [a]
++ String
x
            [String] -> IO [String]
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return [String]
files