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|
{- file copying with rsync
-
- Copyright 2010 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Utility.RsyncFile where
import Data.String.Utils
import Utility.SafeCommand
{- Generates parameters to make rsync use a specified command as its remote
- shell. -}
rsyncShell :: [CommandParam] -> [CommandParam]
rsyncShell command = [Param "-e", Param $ unwords $ map escape (toCommand 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 ++ [Param "--sender", File file]
{- Runs rsync in server mode to receive a file. -}
rsyncServerReceive :: FilePath -> IO Bool
rsyncServerReceive file = rsync $ rsyncServerParams ++ [File file]
rsyncServerParams :: [CommandParam]
rsyncServerParams =
[ Param "--server"
-- preserve permissions
, Param "-p"
-- allow resuming of transfers of big files
, Param "--inplace"
-- other options rsync normally uses in server mode
, Params "-e.Lsf ."
]
rsync :: [CommandParam] -> IO Bool
rsync = boolSystem "rsync"
rsyncExec :: [CommandParam] -> IO ()
rsyncExec params = executeFile "rsync" True (toCommand params) Nothing
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