diff --git a/install.hs b/install.hs index 8ea158467..a7d7eea67 100755 --- a/install.hs +++ b/install.hs @@ -15,7 +15,9 @@ import Development.Shake import Development.Shake.Command import Development.Shake.FilePath import Control.Monad -import System.Environment ( unsetEnv ) +import System.Environment ( getProgName + , unsetEnv + ) import System.Info ( os , arch ) @@ -170,9 +172,10 @@ buildDoc versionNumber = do helpMessage :: Action () helpMessage = do let out = liftIO . putStrLn + scriptName <- liftIO getProgName out "" out "Usage:" - out " stack install.hs " + out (" stack " <> scriptName <> " ") out "" out "Targets:" out