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