git-annex/CopyFile.hs
Joey Hess fcdc4797a9 use ShellParam type
So, I have a type checked safe handling of filenames starting with dashes,
throughout the code.
2011-02-28 16:18:55 -04:00

31 lines
793 B
Haskell

{- git-annex file copying
-
- Copyright 2010 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module CopyFile (copyFile) where
import Control.Monad (when)
import System.Directory (doesFileExist, removeFile)
import Utility
import qualified SysConfig
{- The cp command is used, because I hate reinventing the wheel,
- and because this allows easy access to features like cp --reflink. -}
copyFile :: FilePath -> FilePath -> IO Bool
copyFile src dest = do
e <- doesFileExist dest
when e $
removeFile dest
boolSystem "cp" [params, File src, File dest]
where
params = if SysConfig.cp_reflink_auto
then Params "--reflink=auto"
else if SysConfig.cp_a
then Params "-a"
else if SysConfig.cp_p
then Params "-p"
else Params ""