+{-# OPTIONS_GHC -w #-}
+-- XXX We get some warnings on Windows
+
-----------------------------------------------------------------------------
-- |
-- Module : System.Directory
) where
import Prelude hiding ( catch )
+import qualified Prelude
+import Control.Monad (guard)
import System.Environment ( getEnv )
import System.FilePath
+import System.IO
import System.IO.Error hiding ( catch, try )
import Control.Monad ( when, unless )
-import Control.Exception
+import Control.Exception.Base
#ifdef __NHC__
-import Directory
+import Directory hiding ( getDirectoryContents
+ , doesDirectoryExist, doesFileExist
+ , getModificationTime )
+import System (system)
#endif /* __NHC__ */
#ifdef __HUGS__
{-# CFILES cbits/directory.c #-}
-#ifdef __GLASGOW_HASKELL__
-import System.Posix.Types
-import System.Posix.Internals
import System.Time ( ClockTime(..) )
-import System.IO
+#ifdef __GLASGOW_HASKELL__
+
+#if __GLASGOW_HASKELL__ >= 611
+import GHC.IO.Exception ( IOException(..), IOErrorType(..), ioException )
+#else
import GHC.IOBase ( IOException(..), IOErrorType(..), ioException )
+#endif
+
+#ifdef mingw32_HOST_OS
+import System.Posix.Types
+import System.Posix.Internals
+import qualified System.Win32 as Win32
+#else
+import qualified System.Posix as Posix
+#endif
{- $intro
A directory contains a series of entries, each of which is a named
reference to a file system object (file, directory etc.). Some
entries may be hidden, inaccessible, or have some administrative
function (e.g. `.' or `..' under POSIX
-<http://www.opengroup.org/onlinepubs/007904975/toc.htm>), but in
+<http://www.opengroup.org/onlinepubs/009695399/>), but in
this standard all such entries are considered to form part of the
directory contents. Entries in sub-directories are not, however,
considered to form part of the directory contents.
getPermissions :: FilePath -> IO Permissions
getPermissions name = do
- withCString name $ \s -> do
- read <- c_access s r_OK
- write <- c_access s w_OK
- exec <- c_access s x_OK
- withFileStatus "getPermissions" name $ \st -> do
- is_dir <- isDirectory st
+#ifdef mingw32_HOST_OS
+ withFilePath name $ \s -> do
+ -- stat() does a better job of guessing the permissions on Windows
+ -- than access() does. e.g. for execute permission, it looks at the
+ -- filename extension :-)
+ --
+ -- I tried for a while to do this properly, using the Windows security API,
+ -- and eventually gave up. getPermissions is a flawed API anyway. -- SimonM
+ allocaBytes sizeof_stat $ \ p_stat -> do
+ throwErrnoIfMinus1_ "getPermissions" $ c_stat s p_stat
+ mode <- st_mode p_stat
+ let usr_read = mode .&. s_IRUSR
+ let usr_write = mode .&. s_IWUSR
+ let usr_exec = mode .&. s_IXUSR
+ let is_dir = mode .&. s_IFDIR
+ return (
+ Permissions {
+ readable = usr_read /= 0,
+ writable = usr_write /= 0,
+ executable = is_dir == 0 && usr_exec /= 0,
+ searchable = is_dir /= 0 && usr_exec /= 0
+ }
+ )
+#else
+ read_ok <- Posix.fileAccess name True False False
+ write_ok <- Posix.fileAccess name False True False
+ exec_ok <- Posix.fileAccess name False False True
+ stat <- Posix.getFileStatus name
+ let is_dir = Posix.fileMode stat .&. Posix.directoryMode /= 0
return (
Permissions {
- readable = read == 0,
- writable = write == 0,
- executable = not is_dir && exec == 0,
- searchable = is_dir && exec == 0
+ readable = read_ok,
+ writable = write_ok,
+ executable = not is_dir && exec_ok,
+ searchable = is_dir && exec_ok
}
)
+#endif
{- |The 'setPermissions' operation sets the
permissions for the file or directory.
setPermissions :: FilePath -> Permissions -> IO ()
setPermissions name (Permissions r w e s) = do
+#ifdef mingw32_HOST_OS
allocaBytes sizeof_stat $ \ p_stat -> do
- withCString name $ \p_name -> do
+ withFilePath name $ \p_name -> do
throwErrnoIfMinus1_ "setPermissions" $ do
c_stat p_name p_stat
mode <- st_mode p_stat
let mode1 = modifyBit r mode s_IRUSR
let mode2 = modifyBit w mode1 s_IWUSR
let mode3 = modifyBit (e || s) mode2 s_IXUSR
- c_chmod p_name mode3
-
+ c_wchmod p_name mode3
where
modifyBit :: Bool -> CMode -> CMode -> CMode
modifyBit False m b = m .&. (complement b)
modifyBit True m b = m .|. b
+#else
+ stat <- Posix.getFileStatus name
+ let mode = Posix.fileMode stat
+ let mode1 = modifyBit r mode Posix.ownerReadMode
+ let mode2 = modifyBit w mode1 Posix.ownerWriteMode
+ let mode3 = modifyBit (e || s) mode2 Posix.ownerExecuteMode
+ Posix.setFileMode name mode3
+ where
+ modifyBit :: Bool -> Posix.FileMode -> Posix.FileMode -> Posix.FileMode
+ modifyBit False m b = m .&. (complement b)
+ modifyBit True m b = m .|. b
+#endif
+#ifdef mingw32_HOST_OS
+foreign import ccall unsafe "_wchmod"
+ c_wchmod :: CWString -> CMode -> IO CInt
+#endif
copyPermissions :: FilePath -> FilePath -> IO ()
copyPermissions source dest = do
+#ifdef mingw32_HOST_OS
allocaBytes sizeof_stat $ \ p_stat -> do
- withCString source $ \p_source -> do
- withCString dest $ \p_dest -> do
+ withFilePath source $ \p_source -> do
+ withFilePath dest $ \p_dest -> do
throwErrnoIfMinus1_ "copyPermissions" $ c_stat p_source p_stat
mode <- st_mode p_stat
- throwErrnoIfMinus1_ "copyPermissions" $ c_chmod p_dest mode
+ throwErrnoIfMinus1_ "copyPermissions" $ c_wchmod p_dest mode
+#else
+ stat <- Posix.getFileStatus source
+ let mode = Posix.fileMode stat
+ Posix.setFileMode dest mode
+#endif
-----------------------------------------------------------------------------
-- Implementation
createDirectory :: FilePath -> IO ()
createDirectory path = do
- modifyIOError (`ioeSetFileName` path) $
- withCString path $ \s -> do
- throwErrnoIfMinus1Retry_ "createDirectory" $
- mkdir s 0o777
+#ifdef mingw32_HOST_OS
+ Win32.createDirectory path Nothing
+#else
+ Posix.createDirectory path 0o777
+#endif
#else /* !__GLASGOW_HASKELL__ */
createDirectoryIfMissing :: Bool -- ^ Create its parents too?
-> FilePath -- ^ The path to the directory you want to make
-> IO ()
-createDirectoryIfMissing parents file = do
- b <- doesDirectoryExist file
- case (b,parents, file) of
- (_, _, "") -> return ()
- (True, _, _) -> return ()
- (_, True, _) -> mapM_ (createDirectoryIfMissing False) $ mkParents file
- (_, False, _) -> createDirectory file
- where mkParents = scanl1 (</>) . splitDirectories . normalise
+createDirectoryIfMissing create_parents path0
+ | create_parents = createDirs (parents path0)
+ | otherwise = createDirs (take 1 (parents path0))
+ where
+ parents = reverse . scanl1 (</>) . splitDirectories . normalise
+
+ createDirs [] = return ()
+ createDirs (dir:[]) = createDir dir throw
+ createDirs (dir:dirs) =
+ createDir dir $ \_ -> do
+ createDirs dirs
+ createDir dir throw
+
+ createDir :: FilePath -> (IOException -> IO ()) -> IO ()
+ createDir dir notExistHandler = do
+ r <- try $ createDirectory dir
+ case (r :: Either IOException ()) of
+ Right () -> return ()
+ Left e
+ | isDoesNotExistError e -> notExistHandler e
+ -- createDirectory (and indeed POSIX mkdir) does not distinguish
+ -- between a dir already existing and a file already existing. So we
+ -- check for it here. Unfortunately there is a slight race condition
+ -- here, but we think it is benign. It could report an exeption in
+ -- the case that the dir did exist but another process deletes the
+ -- directory and creates a file in its place before we can check
+ -- that the directory did indeed exist.
+ | isAlreadyExistsError e -> (do
+#ifdef mingw32_HOST_OS
+ withFileStatus "createDirectoryIfMissing" dir $ \st -> do
+ isDir <- isDirectory st
+ if isDir then return ()
+ else throw e
+#else
+ stat <- Posix.getFileStatus dir
+ if Posix.fileMode stat .&. Posix.directoryMode /= 0
+ then return ()
+ else throw e
+#endif
+ ) `catch` ((\_ -> return ()) :: IOException -> IO ())
+ | otherwise -> throw e
#if __GLASGOW_HASKELL__
{- | @'removeDirectory' dir@ removes an existing directory /dir/. The
-}
removeDirectory :: FilePath -> IO ()
-removeDirectory path = do
- modifyIOError (`ioeSetFileName` path) $
- withCString path $ \s ->
- throwErrnoIfMinus1Retry_ "removeDirectory" (c_rmdir s)
+removeDirectory path =
+#ifdef mingw32_HOST_OS
+ Win32.removeDirectory path
+#else
+ Posix.removeDirectory path
+#endif
+
#endif
-- | @'removeDirectoryRecursive' dir@ removes an existing directory /dir/
case temp of
Left e -> do isDir <- doesDirectoryExist f
-- If f is not a directory, re-throw the error
- unless isDir $ throw e
+ unless isDir $ throw (e :: SomeException)
removeDirectoryRecursive f
Right _ -> return ()
-}
removeFile :: FilePath -> IO ()
-removeFile path = do
- modifyIOError (`ioeSetFileName` path) $
- withCString path $ \s ->
- throwErrnoIfMinus1Retry_ "removeFile" (c_unlink s)
+removeFile path =
+#if mingw32_HOST_OS
+ Win32.deleteFile path
+#else
+ Posix.removeLink path
+#endif
{- |@'renameDirectory' old new@ changes the name of an existing
directory from /old/ to /new/. If the /new/ directory
-}
renameDirectory :: FilePath -> FilePath -> IO ()
-renameDirectory opath npath =
+renameDirectory opath npath = do
+ -- XXX this test isn't performed atomically with the following rename
+#ifdef mingw32_HOST_OS
+ -- ToDo: use Win32 API
withFileStatus "renameDirectory" opath $ \st -> do
is_dir <- isDirectory st
+#else
+ stat <- Posix.getFileStatus opath
+ let is_dir = Posix.fileMode stat .&. Posix.directoryMode /= 0
+#endif
if (not is_dir)
- then ioException (IOError Nothing InappropriateType "renameDirectory"
- ("not a directory") (Just opath))
+ then ioException (ioeSetErrorString
+ (mkIOError InappropriateType "renameDirectory" Nothing (Just opath))
+ "not a directory")
else do
-
- withCString opath $ \s1 ->
- withCString npath $ \s2 ->
- throwErrnoIfMinus1Retry_ "renameDirectory" (c_rename s1 s2)
+#ifdef mingw32_HOST_OS
+ Win32.moveFileEx opath npath Win32.mOVEFILE_REPLACE_EXISTING
+#else
+ Posix.rename opath npath
+#endif
{- |@'renameFile' old new@ changes the name of an existing file system
object from /old/ to /new/. If the /new/ object already
-}
renameFile :: FilePath -> FilePath -> IO ()
-renameFile opath npath =
+renameFile opath npath = do
+ -- XXX this test isn't performed atomically with the following rename
+#ifdef mingw32_HOST_OS
+ -- ToDo: use Win32 API
withFileOrSymlinkStatus "renameFile" opath $ \st -> do
is_dir <- isDirectory st
+#else
+ stat <- Posix.getSymbolicLinkStatus opath
+ let is_dir = Posix.fileMode stat .&. Posix.directoryMode /= 0
+#endif
if is_dir
- then ioException (IOError Nothing InappropriateType "renameFile"
- "is a directory" (Just opath))
+ then ioException (ioeSetErrorString
+ (mkIOError InappropriateType "renameFile" Nothing (Just opath))
+ "is a directory")
else do
-
- withCString opath $ \s1 ->
- withCString npath $ \s2 ->
- throwErrnoIfMinus1Retry_ "renameFile" (c_rename s1 s2)
+#ifdef mingw32_HOST_OS
+ Win32.moveFileEx opath npath Win32.mOVEFILE_REPLACE_EXISTING
+#else
+ Posix.rename opath npath
+#endif
#endif /* __GLASGOW_HASKELL__ */
-}
copyFile :: FilePath -> FilePath -> IO ()
+#ifdef __NHC__
+copyFile fromFPath toFPath =
+ do readFile fromFPath >>= writeFile toFPath
+ Prelude.catch (copyPermissions fromFPath toFPath)
+ (\_ -> return ())
+#else
copyFile fromFPath toFPath =
- copy `catch` (\e -> case e of
- IOException e ->
- throw $ IOException $ ioeSetLocation e "copyFile"
- _ -> throw e)
+ copy `Prelude.catch` (\exc -> throw $ ioeSetLocation exc "copyFile")
where copy = bracket (openBinaryFile fromFPath ReadMode) hClose $ \hFrom ->
bracketOnError openTmp cleanTmp $ \(tmpFPath, hTmp) ->
do allocaBytes bufferSize $ copyContents hFrom hTmp
hClose hTmp
- try (copyPermissions fromFPath toFPath)
+ ignoreIOExceptions $ copyPermissions fromFPath tmpFPath
renameFile tmpFPath toFPath
openTmp = openBinaryTempFile (takeDirectory toFPath) ".copyFile.tmp"
- cleanTmp (tmpFPath, hTmp) = do try $ hClose hTmp
- try $ removeFile tmpFPath
+ cleanTmp (tmpFPath, hTmp)
+ = do ignoreIOExceptions $ hClose hTmp
+ ignoreIOExceptions $ removeFile tmpFPath
bufferSize = 1024
copyContents hFrom hTo buffer = do
hPutBuf hTo buffer count
copyContents hFrom hTo buffer
+ ignoreIOExceptions io = io `catch` ioExceptionIgnorer
+ ioExceptionIgnorer :: IOException -> IO ()
+ ioExceptionIgnorer _ = return ()
+#endif
+
-- | Given path referring to a file or directory, returns a
-- canonicalized path, with the intent that two paths referring
-- to the same file\/directory will map to the same canonicalized
-- attempt.
canonicalizePath :: FilePath -> IO FilePath
canonicalizePath fpath =
- withCString fpath $ \pInPath ->
- allocaBytes long_path_size $ \pOutPath ->
#if defined(mingw32_HOST_OS)
- alloca $ \ppFilePart ->
- do c_GetFullPathName pInPath (fromIntegral long_path_size) pOutPath ppFilePart
+ do path <- Win32.getFullPathName fpath
#else
+ withCString fpath $ \pInPath ->
+ allocaBytes long_path_size $ \pOutPath ->
do c_realpath pInPath pOutPath
+ path <- peekCString pOutPath
#endif
- peekCString pOutPath
+ return (normalise path)
+ -- normalise does more stuff, like upper-casing the drive letter
#if defined(mingw32_HOST_OS)
foreign import stdcall unsafe "GetFullPathNameA"
cur <- getCurrentDirectory
return $ makeRelative cur x
--- | Given an executable file name, searches for such file
--- in the directories listed in system PATH. The returned value
--- is the path to the found executable or Nothing if there isn't
--- such executable. For example (findExecutable \"ghc\")
--- gives you the path to GHC.
+-- | Given an executable file name, searches for such file in the
+-- directories listed in system PATH. The returned value is the path
+-- to the found executable or Nothing if an executable with the given
+-- name was not found. For example (findExecutable \"ghc\") gives you
+-- the path to GHC.
+--
+-- The path returned by 'findExecutable' corresponds to the
+-- program that would be executed by 'System.Process.createProcess'
+-- when passed the same string (as a RawCommand, not a ShellCommand).
+--
+-- On Windows, 'findExecutable' calls the Win32 function 'SearchPath',
+-- which may search other places before checking the directories in
+-- @PATH@. Where it actually searches depends on registry settings,
+-- but notably includes the directory containing the current
+-- executable. See
+-- <http://msdn.microsoft.com/en-us/library/aa365527.aspx> for more
+-- details.
+--
findExecutable :: String -> IO (Maybe FilePath)
findExecutable binary =
#if defined(mingw32_HOST_OS)
#endif
-#ifdef __GLASGOW_HASKELL__
+#ifndef __HUGS__
{- |@'getDirectoryContents' dir@ returns a list of /all/ entries
in /dir/.
-}
getDirectoryContents :: FilePath -> IO [FilePath]
-getDirectoryContents path = do
- modifyIOError (`ioeSetFileName` path) $
- alloca $ \ ptr_dEnt ->
- bracket
- (withCString path $ \s ->
- throwErrnoIfNullRetry desc (c_opendir s))
- (\p -> throwErrnoIfMinus1_ desc (c_closedir p))
- (\p -> loop ptr_dEnt p)
+getDirectoryContents path =
+ modifyIOError ((`ioeSetFileName` path) .
+ (`ioeSetLocation` "getDirectoryContents")) $ do
+#ifndef mingw32_HOST_OS
+ bracket
+ (Posix.openDirStream path)
+ Posix.closeDirStream
+ loop
+ where
+ loop dirp = do
+ e <- Posix.readDirStream dirp
+ if null e then return [] else do
+ es <- loop dirp
+ return (e:es)
+#else
+ bracket
+ (Win32.findFirstFile (path </> "*"))
+ (\(h,_) -> Win32.findClose h)
+ (\(h,fdat) -> loop h fdat [])
where
- desc = "getDirectoryContents"
-
- loop :: Ptr (Ptr CDirent) -> Ptr CDir -> IO [String]
- loop ptr_dEnt dir = do
- resetErrno
- r <- readdir dir ptr_dEnt
- if (r == 0)
- then do
- dEnt <- peek ptr_dEnt
- if (dEnt == nullPtr)
- then return []
- else do
- entry <- (d_name dEnt >>= peekCString)
- freeDirEnt dEnt
- entries <- loop ptr_dEnt dir
- return (entry:entries)
- else do errno <- getErrno
- if (errno == eINTR) then loop ptr_dEnt dir else do
- let (Errno eo) = errno
- if (eo == end_of_dir)
- then return []
- else throwErrno desc
+ -- we needn't worry about empty directories: adirectory always
+ -- has at least "." and ".." entries
+ loop :: Win32.HANDLE -> Win32.FindData -> [FilePath] -> IO [FilePath]
+ loop h fdat acc = do
+ filename <- Win32.getFindDataFileName fdat
+ more <- Win32.findNextFile h fdat
+ if more
+ then loop h fdat (filename:acc)
+ else return (filename:acc)
+ -- no need to reverse, ordering is undefined
+#endif /* mingw32 */
+#endif /* !__HUGS__ */
{- |If the operating system has a notion of current directories,
The operating system has no notion of current directory.
-}
-
+#ifdef __GLASGOW_HASKELL__
getCurrentDirectory :: IO FilePath
getCurrentDirectory = do
- p <- mallocBytes long_path_size
- go p long_path_size
- where go p bytes = do
- p' <- c_getcwd p (fromIntegral bytes)
- if p' /= nullPtr
- then do s <- peekCString p'
- free p'
- return s
- else do errno <- getErrno
- if errno == eRANGE
- then do let bytes' = bytes * 2
- p' <- reallocBytes p bytes'
- go p' bytes'
- else throwErrno "getCurrentDirectory"
+#ifdef mingw32_HOST_OS
+ Win32.getCurrentDirectory
+#else
+ Posix.getWorkingDirectory
+#endif
{- |If the operating system has a notion of current directories,
@'setCurrentDirectory' dir@ changes the current
-}
setCurrentDirectory :: FilePath -> IO ()
-setCurrentDirectory path = do
- modifyIOError (`ioeSetFileName` path) $
- withCString path $ \s ->
- throwErrnoIfMinus1Retry_ "setCurrentDirectory" (c_chdir s)
- -- ToDo: add path to error
+setCurrentDirectory path =
+#ifdef mingw32_HOST_OS
+ Win32.setCurrentDirectory path
+#else
+ Posix.changeWorkingDirectory path
+#endif
+
+#endif /* __GLASGOW_HASKELL__ */
+#ifndef __HUGS__
{- |The operation 'doesDirectoryExist' returns 'True' if the argument file
exists and is a directory, and 'False' otherwise.
-}
doesDirectoryExist :: FilePath -> IO Bool
-doesDirectoryExist name =
- catch
+doesDirectoryExist name =
+#ifdef mingw32_HOST_OS
(withFileStatus "doesDirectoryExist" name $ \st -> isDirectory st)
- (\ _ -> return False)
+#else
+ (do stat <- Posix.getFileStatus name
+ return (Posix.fileMode stat .&. Posix.directoryMode /= 0))
+#endif
+ `catch` ((\ _ -> return False) :: IOException -> IO Bool)
{- |The operation 'doesFileExist' returns 'True'
if the argument file exists and is not a directory, and 'False' otherwise.
-}
doesFileExist :: FilePath -> IO Bool
-doesFileExist name = do
- catch
+doesFileExist name =
+#ifdef mingw32_HOST_OS
(withFileStatus "doesFileExist" name $ \st -> do b <- isDirectory st; return (not b))
- (\ _ -> return False)
+#else
+ (do stat <- Posix.getFileStatus name
+ return (Posix.fileMode stat .&. Posix.directoryMode == 0))
+#endif
+ `catch` ((\ _ -> return False) :: IOException -> IO Bool)
{- |The 'getModificationTime' operation returns the
clock time at which the file or directory was last modified.
-}
getModificationTime :: FilePath -> IO ClockTime
-getModificationTime name =
- withFileStatus "getModificationTime" name $ \ st ->
+getModificationTime name = do
+#ifdef mingw32_HOST_OS
+ -- ToDo: use Win32 API
+ withFileStatus "getModificationTime" name $ \ st -> do
modificationTime st
+#else
+ stat <- Posix.getFileStatus name
+ let realToInteger = round . realToFrac :: Real a => a -> Integer
+ return (TOD (realToInteger (Posix.modificationTime stat)) 0)
+#endif
+
+#endif /* !__HUGS__ */
+
+#ifdef mingw32_HOST_OS
withFileStatus :: String -> FilePath -> (Ptr CStat -> IO a) -> IO a
withFileStatus loc name f = do
modifyIOError (`ioeSetFileName` name) $
allocaBytes sizeof_stat $ \p ->
- withCString (fileNameEndClean name) $ \s -> do
+ withFilePath (fileNameEndClean name) $ \s -> do
throwErrnoIfMinus1Retry_ loc (c_stat s p)
f p
withFileOrSymlinkStatus loc name f = do
modifyIOError (`ioeSetFileName` name) $
allocaBytes sizeof_stat $ \p ->
- withCString name $ \s -> do
+ withFilePath name $ \s -> do
throwErrnoIfMinus1Retry_ loc (lstat s p)
f p
fileNameEndClean name = if isDrive name then addTrailingPathSeparator name
else dropTrailingPathSeparator name
-foreign import ccall unsafe "__hscore_R_OK" r_OK :: CInt
-foreign import ccall unsafe "__hscore_W_OK" w_OK :: CInt
-foreign import ccall unsafe "__hscore_X_OK" x_OK :: CInt
+foreign import ccall unsafe "HsDirectory.h __hscore_R_OK" r_OK :: CInt
+foreign import ccall unsafe "HsDirectory.h __hscore_W_OK" w_OK :: CInt
+foreign import ccall unsafe "HsDirectory.h __hscore_X_OK" x_OK :: CInt
+
+foreign import ccall unsafe "HsDirectory.h __hscore_S_IRUSR" s_IRUSR :: CMode
+foreign import ccall unsafe "HsDirectory.h __hscore_S_IWUSR" s_IWUSR :: CMode
+foreign import ccall unsafe "HsDirectory.h __hscore_S_IXUSR" s_IXUSR :: CMode
+foreign import ccall unsafe "__hscore_S_IFDIR" s_IFDIR :: CMode
+#endif
-foreign import ccall unsafe "__hscore_S_IRUSR" s_IRUSR :: CMode
-foreign import ccall unsafe "__hscore_S_IWUSR" s_IWUSR :: CMode
-foreign import ccall unsafe "__hscore_S_IXUSR" s_IXUSR :: CMode
+#ifdef __GLASGOW_HASKELL__
foreign import ccall unsafe "__hscore_long_path_size"
long_path_size :: Int
-
#else
long_path_size :: Int
long_path_size = 2048 -- // guess?
-
#endif /* __GLASGOW_HASKELL__ */
{- | Returns the current user's home directory.
getHomeDirectory =
#if defined(mingw32_HOST_OS)
allocaBytes long_path_size $ \pPath -> do
- r <- c_SHGetFolderPath nullPtr csidl_PROFILE nullPtr 0 pPath
- if (r < 0)
+ r0 <- c_SHGetFolderPath nullPtr csidl_PROFILE nullPtr 0 pPath
+ if (r0 < 0)
then do
- r <- c_SHGetFolderPath nullPtr csidl_WINDOWS nullPtr 0 pPath
- when (r < 0) (raiseUnsupported "System.Directory.getHomeDirectory")
+ r1 <- c_SHGetFolderPath nullPtr csidl_WINDOWS nullPtr 0 pPath
+ when (r1 < 0) (raiseUnsupported "System.Directory.getHomeDirectory")
else return ()
peekCString pPath
#else
getTemporaryDirectory :: IO FilePath
getTemporaryDirectory = do
#if defined(mingw32_HOST_OS)
- allocaBytes long_path_size $ \pPath -> do
- r <- c_GetTempPath (fromIntegral long_path_size) pPath
- peekCString pPath
+ Win32.getTemporaryDirectory
+#else
+ getEnv "TMPDIR"
+#if !__NHC__
+ `Prelude.catch` \e -> if isDoesNotExistError e then return "/tmp"
+ else throw e
#else
- catch (getEnv "TMPDIR") (\ex -> return "/tmp")
+ `Prelude.catch` (\ex -> return "/tmp")
+#endif
#endif
#if defined(mingw32_HOST_OS)
foreign import ccall unsafe "__hscore_CSIDL_WINDOWS" csidl_WINDOWS :: CInt
foreign import ccall unsafe "__hscore_CSIDL_PERSONAL" csidl_PERSONAL :: CInt
-foreign import stdcall unsafe "GetTempPathA" c_GetTempPath :: CInt -> CString -> IO CInt
-
+raiseUnsupported :: String -> IO ()
raiseUnsupported loc =
- ioException (IOError Nothing UnsupportedOperation loc "unsupported operation" Nothing)
+ ioException (ioeSetErrorString (mkIOError UnsupportedOperation loc Nothing Nothing) "unsupported operation")
#endif
#else
exeExtension = ""
#endif
-
projects / haskell-directory.git / blobdiff