27619497ec
This way, if a temp file was left behind, and permissions don't allow it to be written, cp won't fail.
31 lines
786 B
Haskell
31 lines
786 B
Haskell
{- git-annex file copying
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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 CopyFile (copyFile) where
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import Control.Monad (when)
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import System.Directory (doesFileExist, removeFile)
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import Utility
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import qualified SysConfig
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{- The cp command is used, because I hate reinventing the wheel,
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- and because this allows easy access to features like cp --reflink. -}
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copyFile :: FilePath -> FilePath -> IO Bool
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copyFile src dest = do
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e <- doesFileExist dest
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when e $
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removeFile dest
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boolSystem "cp" opts
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where
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opts = if SysConfig.cp_reflink_auto
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then ["--reflink=auto", src, dest]
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else if SysConfig.cp_a
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then ["-a", src, dest]
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else if SysConfig.cp_p
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then ["-p", src, dest]
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else [src, dest]
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