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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,
showProgress,
metered,
meteredBytes,
showSideAction,
doSideAction,
doQuietSideAction,
showStoringStateAction,
showOutput,
showLongNote,
showEndOk,
showEndFail,
showEndResult,
showErr,
warning,
warningIO,
indent,
maybeShowJSON,
showFullJSON,
showCustom,
showHeader,
showRaw,
setupConsole,
enableDebugOutput,
disableDebugOutput
) where
import Text.JSON
import Data.Progress.Meter
import Data.Progress.Tracker
import Data.Quantity
import System.Log.Logger
import System.Log.Formatter
import System.Log.Handler (setFormatter)
import System.Log.Handler.Simple
import Common hiding (handle)
import Types
import Types.Messages
import qualified Messages.JSON as JSON
import Types.Key
import qualified Annex
import Utility.Metered
showStart :: String -> FilePath -> Annex ()
showStart command file = handle (JSON.start command $ Just file) $
flushed $ putStr $ command ++ " " ++ file ++ " "
showStart' :: String -> Key -> Maybe FilePath -> Annex ()
showStart' command key afile = showStart command $
fromMaybe (key2file key) afile
showNote :: String -> Annex ()
showNote s = handle (JSON.note s) $
flushed $ putStr $ "(" ++ s ++ ") "
showAction :: String -> Annex ()
showAction s = showNote $ s ++ "..."
{- Progress dots. -}
showProgress :: Annex ()
showProgress = handle q $
flushed $ putStr "."
{- Shows a progress meter while performing a transfer of a key.
- The action is passed a callback to use to update the meter. -}
metered :: Maybe MeterUpdate -> Key -> (MeterUpdate -> Annex a) -> Annex a
metered combinemeterupdate key a = go (keySize key)
where
go (Just size) = meteredBytes combinemeterupdate size a
go _ = a (const noop)
{- Shows a progress meter while performing an action on a given number
- of bytes. -}
meteredBytes :: Maybe MeterUpdate -> Integer -> (MeterUpdate -> Annex a) -> Annex a
meteredBytes combinemeterupdate size a = withOutputType go
where
go NormalOutput = do
progress <- liftIO $ newProgress "" size
meter <- liftIO $ newMeter progress "B" 25 (renderNums binaryOpts 1)
showOutput
r <- a $ \n -> liftIO $ do
setP progress $ fromBytesProcessed n
displayMeter stdout meter
maybe noop (\m -> m n) combinemeterupdate
liftIO $ clearMeter stdout meter
return r
go _ = a (const noop)
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 = handle q $ putStrLn $ "(" ++ m ++ "...)"
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 }
showOutput :: Annex ()
showOutput = handle q $
putStr "\n"
showLongNote :: String -> Annex ()
showLongNote s = handle (JSON.note s) $
putStrLn $ '\n' : indent s
showEndOk :: Annex ()
showEndOk = showEndResult True
showEndFail :: Annex ()
showEndFail = showEndResult False
showEndResult :: Bool -> Annex ()
showEndResult ok = handle (JSON.end ok) $ putStrLn msg
where
msg
| ok = "ok"
| otherwise = "failed"
showErr :: (Show a) => a -> Annex ()
showErr e = warning' $ "git-annex: " ++ show e
warning :: String -> Annex ()
warning = warning' . indent
warning' :: String -> Annex ()
warning' w = do
handle q $ putStr "\n"
liftIO $ do
hFlush stdout
hPutStrLn stderr w
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 = handle (JSON.add v) q
{- 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
handle (JSON.start command Nothing) q
r <- a
handle (JSON.end r) q
showHeader :: String -> Annex ()
showHeader h = handle q $
flushed $ putStr $ h ++ ": "
showRaw :: String -> Annex ()
showRaw s = handle q $ putStrLn s
setupConsole :: IO ()
setupConsole = do
s <- setFormatter
<$> streamHandler stderr DEBUG
<*> pure (simpleLogFormatter "[$time] $msg")
updateGlobalLogger rootLoggerName (setLevel NOTICE . setHandlers [s])
{- This avoids ghc's output layer crashing on
- invalid encoded characters in
- filenames when printing them out. -}
fileEncoding stdout
fileEncoding stderr
enableDebugOutput :: IO ()
enableDebugOutput = updateGlobalLogger rootLoggerName $ setLevel DEBUG
disableDebugOutput :: IO ()
disableDebugOutput = updateGlobalLogger rootLoggerName $ setLevel NOTICE
handle :: IO () -> IO () -> Annex ()
handle json normal = withOutputType go
where
go NormalOutput = liftIO normal
go QuietOutput = q
go JSONOutput = liftIO $ flushed json
q :: Monad m => m ()
q = noop
flushed :: IO () -> IO ()
flushed a = a >> hFlush stdout
withOutputType :: (OutputType -> Annex a) -> Annex a
withOutputType a = outputType <$> Annex.getState Annex.output >>= a
|
