module Propellor.Property.Cmd ( cmdProperty, cmdProperty', scriptProperty ) where import Control.Applicative import Data.List import Propellor.Types import Utility.Monad import Utility.SafeCommand import Utility.Env -- | A property that can be satisfied by running a command. -- -- The command must exit 0 on success. cmdProperty :: String -> [String] -> Property cmdProperty cmd params = cmdProperty' cmd params [] -- | A property that can be satisfied by running a command, -- with added environment. cmdProperty' :: String -> [String] -> [(String, String)] -> Property cmdProperty' cmd params env = Property desc $ do env' <- addEntries env <$> getEnvironment ifM (boolSystemEnv cmd (map Param params) (Just env')) ( return MadeChange , return FailedChange ) where desc = unwords $ cmd : params -- | A property that can be satisfied by running a series of shell commands. scriptProperty :: [String] -> Property scriptProperty script = cmdProperty "sh" ["-c", shellcmd] where shellcmd = intercalate " ; " ("set -e" : script)