module Propellor.Property.Cmd (
cmdProperty,
cmdProperty',
scriptProperty,
userScriptProperty,
serviceRunning,
) where
import Control.Monad
import Control.Applicative
import Data.List
import Propellor.Types
import Propellor.Engine
import Utility.Monad
import Utility.SafeCommand
import Utility.Env
cmdProperty :: String -> [String] -> Property
cmdProperty cmd params = cmdProperty' cmd params []
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
scriptProperty :: [String] -> Property
scriptProperty script = cmdProperty "sh" ["-c", shellcmd]
where
shellcmd = intercalate " ; " ("set -e" : script)
userScriptProperty :: UserName -> [String] -> Property
userScriptProperty user script = cmdProperty "su" ["-c", shellcmd, user]
where
shellcmd = intercalate " ; " ("set -e" : "cd" : script)
serviceRunning :: String -> Property
serviceRunning svc = Property ("running " ++ svc) $ do
void $ ensureProperty $
scriptProperty ["service " ++ shellEscape svc ++ " start >/dev/null 2>&1 || true"]
return NoChange