52 lines
1.3 KiB
Haskell
52 lines
1.3 KiB
Haskell
{-# LANGUAGE PackageImports #-}
|
|
|
|
module Propellor.Message where
|
|
|
|
import System.Console.ANSI
|
|
import System.IO
|
|
import System.Log.Logger
|
|
import "mtl" Control.Monad.Reader
|
|
|
|
import Propellor.Types
|
|
|
|
-- | Shows a message while performing an action, with a colored status
|
|
-- display.
|
|
actionMessage :: (MonadIO m, ActionResult r) => Desc -> m r -> m r
|
|
actionMessage desc a = do
|
|
liftIO $ do
|
|
setTitle $ "propellor: " ++ desc
|
|
hFlush stdout
|
|
|
|
r <- a
|
|
|
|
liftIO $ do
|
|
setTitle "propellor: running"
|
|
let (msg, intensity, color) = getActionResult r
|
|
putStr $ desc ++ " ... "
|
|
colorLine intensity color msg
|
|
hFlush stdout
|
|
|
|
return r
|
|
|
|
warningMessage :: MonadIO m => String -> m ()
|
|
warningMessage s = liftIO $ colorLine Vivid Magenta $ "** warning: " ++ s
|
|
|
|
colorLine :: ColorIntensity -> Color -> String -> IO ()
|
|
colorLine intensity color msg = do
|
|
setSGR [SetColor Foreground intensity color]
|
|
putStr msg
|
|
setSGR []
|
|
-- Note this comes after the color is reset, so that
|
|
-- the color set and reset happen in the same line.
|
|
putStrLn ""
|
|
hFlush stdout
|
|
|
|
errorMessage :: String -> IO a
|
|
errorMessage s = do
|
|
liftIO $ colorLine Vivid Red $ "** error: " ++ s
|
|
error "Cannot continue!"
|
|
|
|
-- | Causes a debug message to be displayed when PROPELLOR_DEBUG=1
|
|
debug :: [String] -> IO ()
|
|
debug = debugM "propellor" . unwords
|