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{- git-annex output messages, including concurrent output to display regions
-
- Copyright 2010-2015 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Messages.Internal where
import Common
import Annex
import Types.Messages
import Messages.Concurrent
withMessageState :: (MessageState -> Annex a) -> Annex a
withMessageState a = Annex.getState Annex.output >>= a
outputMessage :: IO () -> String -> Annex ()
outputMessage json msg = withMessageState $ \s -> case outputType s of
NormalOutput
| concurrentOutputEnabled s -> concurrentMessage s False msg q
| otherwise -> liftIO $ flushed $ putStr msg
QuietOutput -> q
JSONOutput -> liftIO $ flushed json
outputError :: String -> Annex ()
outputError msg = withMessageState $ \s ->
if concurrentOutputEnabled s
then concurrentMessage s True msg go
else go
where
go = liftIO $ do
hFlush stdout
hPutStr stderr msg
hFlush stderr
q :: Monad m => m ()
q = noop
flushed :: IO () -> IO ()
flushed a = a >> hFlush stdout
|
