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{- Portability shim for basic operations on RawFilePaths.
-
- On unix, this makes syscalls using RawFilesPaths as efficiently as
- possible.
-
- On Windows, filenames are in unicode, so RawFilePaths have to be
- decoded. So this library will work, but less efficiently than using
- FilePath would.
-
- Copyright 2019-2020 Joey Hess <id@joeyh.name>
-
- License: BSD-2-clause
-}
{-# LANGUAGE CPP #-}
{-# OPTIONS_GHC -fno-warn-tabs #-}
module Utility.RawFilePath (
RawFilePath,
readSymbolicLink,
createSymbolicLink,
createLink,
removeLink,
getFileStatus,
getSymbolicLinkStatus,
doesPathExist,
getCurrentDirectory,
createDirectory,
setFileMode,
) where
#ifndef mingw32_HOST_OS
import Utility.FileSystemEncoding (RawFilePath)
import System.Posix.Files.ByteString
import qualified System.Posix.Directory.ByteString as D
-- | Checks if a file or directory exists. Note that a dangling symlink
-- will be false.
doesPathExist :: RawFilePath -> IO Bool
doesPathExist = fileExist
getCurrentDirectory :: IO RawFilePath
getCurrentDirectory = D.getWorkingDirectory
createDirectory :: RawFilePath -> IO ()
createDirectory p = D.createDirectory p 0o777
#else
import System.PosixCompat (FileStatus, FileMode)
import qualified System.PosixCompat as P
import qualified System.PosixCompat.Files as F
import qualified System.Directory as D
import Utility.FileSystemEncoding
readSymbolicLink :: RawFilePath -> IO RawFilePath
readSymbolicLink f = toRawFilePath <$> P.readSymbolicLink (fromRawFilePath f)
createSymbolicLink :: RawFilePath -> RawFilePath -> IO ()
createSymbolicLink a b = P.createSymbolicLink
(fromRawFilePath a)
(fromRawFilePath b)
createLink :: RawFilePath -> RawFilePath -> IO ()
createLink a b = P.createLink
(fromRawFilePath a)
(fromRawFilePath b)
{- On windows, removeLink is not available, so only remove files,
- not symbolic links. -}
removeLink :: RawFilePath -> IO ()
removeLink = D.removeFile . fromRawFilePath
getFileStatus :: RawFilePath -> IO FileStatus
getFileStatus = P.getFileStatus . fromRawFilePath
getSymbolicLinkStatus :: RawFilePath -> IO FileStatus
getSymbolicLinkStatus = P.getSymbolicLinkStatus . fromRawFilePath
doesPathExist :: RawFilePath -> IO Bool
doesPathExist = D.doesPathExist . fromRawFilePath
getCurrentDirectory :: IO RawFilePath
getCurrentDirectory = toRawFilePath <$> D.getCurrentDirectory
createDirectory :: RawFilePath -> IO ()
createDirectory = D.createDirectory . fromRawFilePath
setFileMode :: RawFilePath -> FileMode -> IO ()
setFileMode = F.setFileMode . fromRawFilePath
#endif
|
