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-- | Wrapper program for propellor distribution.
--
-- Distributions should install this program into PATH.
-- (Cabal builds it as dist/build/propellor/propellor).
--
-- This is not the propellor main program (that's config.hs).
-- This bootstraps ~/.propellor/config.hs, builds it if
-- it's not already built, and runs it.

module Main where

import Propellor.DotDir
import Propellor.Message
import Propellor.Bootstrap
import Utility.Monad
import Utility.Process

import System.Directory
import System.Environment (getArgs)
import System.Exit
import System.Posix.Directory

main :: IO ()
main = withConcurrentOutput $ go =<< getArgs
  where
	go ["--init"] = interactiveInit
	go args = ifM (doesDirectoryExist =<< dotPropellor)
		( do
			checkRepoUpToDate
			buildRunConfig args
		, error "Seems that ~/.propellor/ does not exist. To set it up, run: propellor --init"
		)

buildRunConfig :: [String] -> IO ()
buildRunConfig args = do
	changeWorkingDirectory =<< dotPropellor
	buildPropellor Nothing
	putStrLn ""
	putStrLn ""
	(_, _, _, pid) <- createProcess (proc "./propellor" args) 
	exitWith =<< waitForProcess pid