48 lines
1.4 KiB
Haskell
48 lines
1.4 KiB
Haskell
{- git-annex file copying with rsync
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-
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- Copyright 2010 Joey Hess <joey@kitenet.net>
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-
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- Licensed under the GNU GPL version 3 or higher.
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-}
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module Utility.RsyncFile where
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import Data.String.Utils
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import Utility
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{- Generates parameters to make rsync use a specified command as its remote
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- shell. -}
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rsyncShell :: [CommandParam] -> [CommandParam]
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rsyncShell command = [Param "-e", Param $ unwords $ map escape (toCommand command)]
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where
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{- rsync requires some weird, non-shell like quoting in
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- here. A doubled single quote inside the single quoted
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- string is a single quote. -}
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escape s = "'" ++ (join "''" $ split "'" s) ++ "'"
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{- Runs rsync in server mode to send a file, and exits. -}
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rsyncServerSend :: FilePath -> IO ()
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rsyncServerSend file = rsyncExec $
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rsyncServerParams ++ [Param "--sender", File file]
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{- Runs rsync in server mode to receive a file. -}
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rsyncServerReceive :: FilePath -> IO Bool
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rsyncServerReceive file = rsync $ rsyncServerParams ++ [File file]
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rsyncServerParams :: [CommandParam]
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rsyncServerParams =
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[ Param "--server"
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-- preserve permissions
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, Param "-p"
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-- allow resuming of transfers of big files
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, Param "--inplace"
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-- other options rsync normally uses in server mode
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, Params "-e.Lsf ."
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]
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rsync :: [CommandParam] -> IO Bool
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rsync = boolSystem "rsync"
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rsyncExec :: [CommandParam] -> IO ()
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rsyncExec params = executeFile "rsync" True (toCommand params) Nothing
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