refactoring, no code changes really

Messages.hs

@@ -0,0 +1,54 @@
+{- git-annex output messages
+ -
+ - Copyright 2010 Joey Hess <joey@kitenet.net>
+ -
+ - Licensed under the GNU GPL version 3 or higher.
+ -}
+
+module Messages where
+
+import Control.Monad.State (liftIO)
+import System.IO
+import Control.Monad (unless)
+import Data.String.Utils
+
+import Types
+import qualified Annex
+
+verbose :: Annex () -> Annex ()
+verbose a = do
+	q <- Annex.flagIsSet "quiet"
+	unless q a
+
+showStart :: String -> String -> Annex ()
+showStart command file = verbose $ do
+	liftIO $ putStr $ command ++ " " ++ file ++ " "
+	liftIO $ hFlush stdout
+
+showNote :: String -> Annex ()
+showNote s = verbose $ do
+	liftIO $ putStr $ "(" ++ s ++ ") "
+	liftIO $ hFlush stdout
+
+showProgress :: Annex ()
+showProgress = verbose $ liftIO $ putStr "\n"
+
+showLongNote :: String -> Annex ()
+showLongNote s = verbose $ do
+	liftIO $ putStr $ "\n" ++ indented
+	where
+		indented = join "\n" $ map (\l -> "  " ++ l) $ lines s 
+showEndOk :: Annex ()
+showEndOk = verbose $ do
+	liftIO $ putStrLn "ok"
+
+showEndFail :: Annex ()
+showEndFail = verbose $ do
+	liftIO $ putStrLn "\nfailed"
+
+{- Exception pretty-printing. -}
+showErr :: (Show a) => a -> Annex ()
+showErr e = warning $ show e
+
+warning :: String -> Annex ()
+warning s = liftIO $ hPutStrLn stderr $ "git-annex: " ++ s