{- git-annex file copying with rsync
 -
 - Copyright 2010 Joey Hess <joey@kitenet.net>
 -
 - Licensed under the GNU GPL version 3 or higher.
 -}

module RsyncFile where

import Utility
import System.Posix.Process

{- Runs rsync in server mode to send a file, and exits. -}
rsyncServerSend :: FilePath -> IO ()
rsyncServerSend file = rsyncExec $ rsyncServerParams ++ ["--sender", file]

{- Runs rsync in server mode to receive a file. -}
rsyncServerReceive :: FilePath -> IO Bool
rsyncServerReceive file = rsync $ rsyncServerParams ++ [file]

rsyncServerParams :: [String]
rsyncServerParams =
	[ "--server"
	, "-p"		-- preserve permissions
	, "--inplace"	-- allow resuming of transfers of big files
	, "-e.Lsf", "."	-- other options rsync normally uses in server mode
	]

rsync :: [String] -> IO Bool
rsync params = boolSystem "rsync" params 

rsyncExec :: [String] -> IO ()
rsyncExec params = executeFile "rsync" True params Nothing