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module Propellor.Message where
import System.Console.ANSI
import System.IO
import Propellor.Types
-- | Shows a message while performing an action, with a colored status
-- display.
actionMessage :: ActionResult r => Desc -> IO r -> IO r
actionMessage desc a = do
setTitle desc
showdesc
putStrLn "starting"
hFlush stdout
r <- a
let (msg, intensity, color) = getActionResult r
showdesc
setSGR [SetColor Foreground intensity color]
putStrLn msg
setSGR []
hFlush stdout
return r
where
showdesc = putStr $ desc ++ " ... "
warningMessage :: String -> IO ()
warningMessage s = do
setSGR [SetColor Foreground Vivid Red]
putStrLn $ "** warning: " ++ s
setSGR []
hFlush stdout
errorMessage :: String -> IO a
errorMessage s = do
warningMessage s
error "Propellor failed!"
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