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{- Portability shim for touching a file.
-
- Copyright 2011-2018 Joey Hess <id@joeyh.name>
-
- License: BSD-2-clause
-}
{-# LANGUAGE CPP #-}
module Utility.Touch (
touchBoth,
touch
) where
#if ! defined(mingw32_HOST_OS)
import System.Posix.Files
import Data.Time.Clock.POSIX
{- Changes the access and modification times of an existing file.
Can follow symlinks, or not. -}
touchBoth :: FilePath -> POSIXTime -> POSIXTime -> Bool -> IO ()
touchBoth file atime mtime follow
| follow = setFileTimesHiRes file atime mtime
| otherwise = setSymbolicLinkTimesHiRes file atime mtime
{- Changes the access and modification times of an existing file
- to the same value. Can follow symlinks, or not. -}
touch :: FilePath -> POSIXTime -> Bool -> IO ()
touch file mtime = touchBoth file mtime mtime
#else
import Data.Time.Clock.POSIX
{- Noop for Windows -}
touchBoth :: FilePath -> POSIXTime -> POSIXTime -> Bool -> IO ()
touchBoth _ _ _ _ = return ()
touch :: FilePath -> POSIXTime -> Bool -> IO ()
touch _ _ _ = return ()
#endif
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