diff options
Diffstat (limited to 'Utility/Process.hs')
| -rw-r--r-- | Utility/Process.hs | 71 |
1 files changed, 0 insertions, 71 deletions
diff --git a/Utility/Process.hs b/Utility/Process.hs index 6d981cb51..ff454f799 100644 --- a/Utility/Process.hs +++ b/Utility/Process.hs @@ -24,8 +24,6 @@ module Utility.Process ( createProcessSuccess, createProcessChecked, createBackgroundProcess, - processTranscript, - processTranscript', withHandle, withIOHandles, withOEHandles, @@ -54,13 +52,6 @@ import System.Log.Logger import Control.Concurrent import qualified Control.Exception as E import Control.Monad -#ifndef mingw32_HOST_OS -import qualified System.Posix.IO -#else -import Control.Applicative -#endif -import Data.Maybe -import Prelude type CreateProcessRunner = forall a. CreateProcess -> ((Maybe Handle, Maybe Handle, Maybe Handle, ProcessHandle) -> IO a) -> IO a @@ -170,68 +161,6 @@ createProcessChecked checker p a = do createBackgroundProcess :: CreateProcessRunner createBackgroundProcess p a = a =<< createProcess p --- | Runs a process, optionally feeding it some input, and --- returns a transcript combining its stdout and stderr, and --- whether it succeeded or failed. -processTranscript :: String -> [String] -> (Maybe String) -> IO (String, Bool) -processTranscript cmd opts = processTranscript' (proc cmd opts) - -processTranscript' :: CreateProcess -> Maybe String -> IO (String, Bool) -processTranscript' cp input = do -#ifndef mingw32_HOST_OS -{- This implementation interleves stdout and stderr in exactly the order - - the process writes them. -} - (readf, writef) <- System.Posix.IO.createPipe - readh <- System.Posix.IO.fdToHandle readf - writeh <- System.Posix.IO.fdToHandle writef - p@(_, _, _, pid) <- createProcess $ cp - { std_in = if isJust input then CreatePipe else Inherit - , std_out = UseHandle writeh - , std_err = UseHandle writeh - } - hClose writeh - - get <- mkreader readh - writeinput input p - transcript <- get - - ok <- checkSuccessProcess pid - return (transcript, ok) -#else -{- This implementation for Windows puts stderr after stdout. -} - p@(_, _, _, pid) <- createProcess $ cp - { std_in = if isJust input then CreatePipe else Inherit - , std_out = CreatePipe - , std_err = CreatePipe - } - - getout <- mkreader (stdoutHandle p) - geterr <- mkreader (stderrHandle p) - writeinput input p - transcript <- (++) <$> getout <*> geterr - - ok <- checkSuccessProcess pid - return (transcript, ok) -#endif - where - mkreader h = do - s <- hGetContents h - v <- newEmptyMVar - void $ forkIO $ do - void $ E.evaluate (length s) - putMVar v () - return $ do - takeMVar v - return s - - writeinput (Just s) p = do - let inh = stdinHandle p - unless (null s) $ do - hPutStr inh s - hFlush inh - hClose inh - writeinput Nothing _ = return () - -- | Runs a CreateProcessRunner, on a CreateProcess structure, that -- is adjusted to pipe only from/to a single StdHandle, and passes -- the resulting Handle to an action. |