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|
{- git-annex output messages
-
- Copyright 2010-2014 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Messages (
showStart,
showStart',
showNote,
showAction,
showSideAction,
doSideAction,
doQuietSideAction,
showStoringStateAction,
showOutput,
showLongNote,
showEndOk,
showEndFail,
showEndResult,
endResult,
toplevelWarning,
warning,
earlyWarning,
warningIO,
indent,
maybeShowJSON,
showFullJSON,
showCustom,
showHeader,
showRaw,
setupConsole,
enableDebugOutput,
disableDebugOutput,
debugEnabled,
commandProgressDisabled,
outputMessage,
implicitMessage,
) where
import Text.JSON
import System.Log.Logger
import System.Log.Formatter
import System.Log.Handler (setFormatter)
import System.Log.Handler.Simple
import Common
import Types
import Types.Messages
import Messages.Internal
import qualified Messages.JSON as JSON
import Types.Key
import qualified Annex
showStart :: String -> FilePath -> Annex ()
showStart command file = outputMessage (JSON.start command (Just file) Nothing) $
command ++ " " ++ file ++ " "
showStart' :: String -> Key -> Maybe FilePath -> Annex ()
showStart' command key afile = outputMessage (JSON.start command afile (Just key)) $
command ++ " " ++ fromMaybe (key2file key) afile ++ " "
showNote :: String -> Annex ()
showNote s = outputMessage (JSON.note s) $ "(" ++ s ++ ") "
showAction :: String -> Annex ()
showAction s = showNote $ s ++ "..."
showSideAction :: String -> Annex ()
showSideAction m = Annex.getState Annex.output >>= go
where
go st
| sideActionBlock st == StartBlock = do
p
let st' = st { sideActionBlock = InBlock }
Annex.changeState $ \s -> s { Annex.output = st' }
| sideActionBlock st == InBlock = return ()
| otherwise = p
p = outputMessage q $ "(" ++ m ++ "...)\n"
showStoringStateAction :: Annex ()
showStoringStateAction = showSideAction "recording state in git"
{- Performs an action, supressing showSideAction messages. -}
doQuietSideAction :: Annex a -> Annex a
doQuietSideAction = doSideAction' InBlock
{- Performs an action, that may call showSideAction multiple times.
- Only the first will be displayed. -}
doSideAction :: Annex a -> Annex a
doSideAction = doSideAction' StartBlock
doSideAction' :: SideActionBlock -> Annex a -> Annex a
doSideAction' b a = do
o <- Annex.getState Annex.output
set $ o { sideActionBlock = b }
set o `after` a
where
set o = Annex.changeState $ \s -> s { Annex.output = o }
{- Make way for subsequent output of a command. -}
showOutput :: Annex ()
showOutput = unlessM commandProgressDisabled $
outputMessage q "\n"
showLongNote :: String -> Annex ()
showLongNote s = outputMessage (JSON.note s) ('\n' : indent s ++ "\n")
showEndOk :: Annex ()
showEndOk = showEndResult True
showEndFail :: Annex ()
showEndFail = showEndResult False
showEndResult :: Bool -> Annex ()
showEndResult ok = outputMessage (JSON.end ok) $ endResult ok ++ "\n"
endResult :: Bool -> String
endResult True = "ok"
endResult False = "failed"
toplevelWarning :: Bool -> String -> Annex ()
toplevelWarning makeway s = warning' makeway ("git-annex: " ++ s)
warning :: String -> Annex ()
warning = warning' True . indent
earlyWarning :: String -> Annex ()
earlyWarning = warning' False
warning' :: Bool -> String -> Annex ()
warning' makeway w = do
when makeway $
outputMessage q "\n"
outputError (w ++ "\n")
{- Not concurrent output safe. -}
warningIO :: String -> IO ()
warningIO w = do
putStr "\n"
hFlush stdout
hPutStrLn stderr w
indent :: String -> String
indent = intercalate "\n" . map (\l -> " " ++ l) . lines
{- Shows a JSON fragment only when in json mode. -}
maybeShowJSON :: JSON a => [(String, a)] -> Annex ()
maybeShowJSON v = withOutputType $ liftIO . go
where
go JSONOutput = JSON.add v
go _ = return ()
{- Shows a complete JSON value, only when in json mode. -}
showFullJSON :: JSON a => [(String, a)] -> Annex Bool
showFullJSON v = withOutputType $ liftIO . go
where
go JSONOutput = JSON.complete v >> return True
go _ = return False
{- Performs an action that outputs nonstandard/customized output, and
- in JSON mode wraps its output in JSON.start and JSON.end, so it's
- a complete JSON document.
- This is only needed when showStart and showEndOk is not used.
-}
showCustom :: String -> Annex Bool -> Annex ()
showCustom command a = do
outputMessage (JSON.start command Nothing Nothing) ""
r <- a
outputMessage (JSON.end r) ""
showHeader :: String -> Annex ()
showHeader h = outputMessage q $ (h ++ ": ")
showRaw :: String -> Annex ()
showRaw s = outputMessage q (s ++ "\n")
setupConsole :: IO ()
setupConsole = do
s <- setFormatter
<$> streamHandler stderr DEBUG
<*> pure preciseLogFormatter
updateGlobalLogger rootLoggerName (setLevel NOTICE . setHandlers [s])
setConsoleEncoding
{- Force output to be line buffered. This is normally the case when
- it's connected to a terminal, but may not be when redirected to
- a file or a pipe. -}
hSetBuffering stdout LineBuffering
hSetBuffering stderr LineBuffering
{- Log formatter with precision into fractions of a second. -}
preciseLogFormatter :: LogFormatter a
preciseLogFormatter = tfLogFormatter "%F %X%Q" "[$time] $msg"
enableDebugOutput :: IO ()
enableDebugOutput = updateGlobalLogger rootLoggerName $ setLevel DEBUG
disableDebugOutput :: IO ()
disableDebugOutput = updateGlobalLogger rootLoggerName $ setLevel NOTICE
{- Checks if debugging is enabled. -}
debugEnabled :: IO Bool
debugEnabled = do
l <- getRootLogger
return $ getLevel l <= Just DEBUG
{- Should commands that normally output progress messages have that
- output disabled? -}
commandProgressDisabled :: Annex Bool
commandProgressDisabled = withOutputType $ \t -> return $ case t of
QuietOutput -> True
JSONOutput -> True
NormalOutput -> False
ConcurrentOutput {} -> True
{- Use to show a message that is displayed implicitly, and so might be
- disabled when running a certian command that needs more control over its
- output. -}
implicitMessage :: Annex () -> Annex ()
implicitMessage = whenM (implicitMessages <$> Annex.getState Annex.output)
|
