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{- 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 System.Posix.Process
import Data.String.Utils
import Utility
{- Generates parameters to make rsync use a specified command as its remote
- shell. -}
rsyncShell :: [String] -> [String]
rsyncShell command = ["-e", unwords $ map escape command]
where
{- rsync requires some weird, non-shell like quoting in
- here. A doubled single quote inside the single quoted
- string is a single quote. -}
escape s = "'" ++ (join "''" $ split "'" s) ++ "'"
{- 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
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