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