debcf86029
Some small wins, almost certianly swamped by the system calls, but still worthwhile progress on the RawFilePath conversion. Sponsored-by: Erik Bjäreholt on Patreon
94 lines
2.6 KiB
Haskell
94 lines
2.6 KiB
Haskell
{- Portability shim for basic operations on RawFilePaths.
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-
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- On unix, this makes syscalls using RawFilesPaths as efficiently as
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- possible.
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-
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- On Windows, filenames are in unicode, so RawFilePaths have to be
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- decoded. So this library will work, but less efficiently than using
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- FilePath would.
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-
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- Copyright 2019-2020 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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{-# OPTIONS_GHC -fno-warn-tabs #-}
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module Utility.RawFilePath (
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RawFilePath,
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readSymbolicLink,
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createSymbolicLink,
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createLink,
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removeLink,
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getFileStatus,
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getSymbolicLinkStatus,
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doesPathExist,
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getCurrentDirectory,
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createDirectory,
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setFileMode,
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rename,
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) where
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#ifndef mingw32_HOST_OS
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import Utility.FileSystemEncoding (RawFilePath)
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import System.Posix.Files.ByteString
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import qualified System.Posix.Directory.ByteString as D
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-- | Checks if a file or directory exists. Note that a dangling symlink
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-- will be false.
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doesPathExist :: RawFilePath -> IO Bool
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doesPathExist = fileExist
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getCurrentDirectory :: IO RawFilePath
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getCurrentDirectory = D.getWorkingDirectory
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createDirectory :: RawFilePath -> IO ()
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createDirectory p = D.createDirectory p 0o777
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#else
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import System.PosixCompat (FileStatus, FileMode)
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import qualified System.PosixCompat as P
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import qualified System.PosixCompat.Files as F
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import qualified System.Directory as D
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import Utility.FileSystemEncoding
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readSymbolicLink :: RawFilePath -> IO RawFilePath
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readSymbolicLink f = toRawFilePath <$> P.readSymbolicLink (fromRawFilePath f)
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createSymbolicLink :: RawFilePath -> RawFilePath -> IO ()
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createSymbolicLink a b = P.createSymbolicLink
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(fromRawFilePath a)
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(fromRawFilePath b)
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createLink :: RawFilePath -> RawFilePath -> IO ()
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createLink a b = P.createLink
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(fromRawFilePath a)
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(fromRawFilePath b)
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{- On windows, removeLink is not available, so only remove files,
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- not symbolic links. -}
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removeLink :: RawFilePath -> IO ()
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removeLink = D.removeFile . fromRawFilePath
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getFileStatus :: RawFilePath -> IO FileStatus
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getFileStatus = P.getFileStatus . fromRawFilePath
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getSymbolicLinkStatus :: RawFilePath -> IO FileStatus
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getSymbolicLinkStatus = P.getSymbolicLinkStatus . fromRawFilePath
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doesPathExist :: RawFilePath -> IO Bool
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doesPathExist = D.doesPathExist . fromRawFilePath
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getCurrentDirectory :: IO RawFilePath
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getCurrentDirectory = toRawFilePath <$> D.getCurrentDirectory
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createDirectory :: RawFilePath -> IO ()
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createDirectory = D.createDirectory . fromRawFilePath
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setFileMode :: RawFilePath -> FileMode -> IO ()
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setFileMode = F.setFileMode . fromRawFilePath
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rename :: RawFilePath -> RawFilePath -> IO ()
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rename a b = F.rename (fromRawFilePath a) (fromRawFilePath b)
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#endif
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