X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=System%2FDirectory.hs;h=3301ed3d2f93268ad96871703a713afd634100c6;hb=e3a4b0478ada7409027379fdf104419a46e219a7;hp=e5e988fa88222c7f0917c1e66f91b55bec3b0e94;hpb=8588695da8e9dcbfd78e1b3674f1883bf1116c0e;p=haskell-directory.git

diff --git a/System/Directory.hs b/System/Directory.hs
index e5e988f..3301ed3 100644
--- a/System/Directory.hs
+++ b/System/Directory.hs
@@ -39,6 +39,7 @@ module System.Directory
     , copyFile                  -- :: FilePath -> FilePath -> IO ()
     
     , canonicalizePath
+    , makeRelativeToCurrentDirectory
     , findExecutable
 
     -- * Existence tests
@@ -65,24 +66,23 @@ module System.Directory
     , getModificationTime       -- :: FilePath -> IO ClockTime
    ) where
 
-import System.Directory.Internals
 import System.Environment      ( getEnv )
+import System.FilePath
 import System.IO.Error
 import Control.Monad           ( when, unless )
 
 #ifdef __NHC__
 import Directory
-import NHC.FFI
 #endif /* __NHC__ */
 
 #ifdef __HUGS__
 import Hugs.Directory
 #endif /* __HUGS__ */
 
-#if defined(__GLASGOW_HASKELL__) || defined(mingw32_HOST_OS)
 import Foreign
 import Foreign.C
-#endif
+
+{-# CFILES cbits/directory.c #-}
 
 #ifdef __GLASGOW_HASKELL__
 import Prelude
@@ -270,11 +270,12 @@ createDirectoryIfMissing :: Bool     -- ^ Create its parents too?
 		         -> IO ()
 createDirectoryIfMissing parents file = do
   b <- doesDirectoryExist file
-  case (b,parents, file) of 
+  case (b,parents, file) of
     (_,     _, "") -> return ()
     (True,  _,  _) -> return ()
-    (_,  True,  _) -> mapM_ (createDirectoryIfMissing False) (tail (pathParents file))
+    (_,  True,  _) -> mapM_ (createDirectoryIfMissing False) $ mkParents file
     (_, False,  _) -> createDirectory file
+ where mkParents = scanl1 (</>) . splitDirectories . normalise
 
 #if __GLASGOW_HASKELL__
 {- | @'removeDirectory' dir@ removes an existing directory /dir/.  The
@@ -331,7 +332,7 @@ removeDirectory path = do
 removeDirectoryRecursive :: FilePath -> IO ()
 removeDirectoryRecursive startLoc = do
   cont <- getDirectoryContents startLoc
-  sequence_ [rm (startLoc `joinFileName` x) | x <- cont, x /= "." && x /= ".."]
+  sequence_ [rm (startLoc </> x) | x <- cont, x /= "." && x /= ".."]
   removeDirectory startLoc
   where
     rm :: FilePath -> IO ()
@@ -564,7 +565,6 @@ copyFile fromFPath toFPath =
 				copyContents hFrom hTo buffer
 #endif
 
-#ifdef __GLASGOW_HASKELL__
 -- | 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
@@ -597,11 +597,12 @@ foreign import ccall unsafe "realpath"
                               -> CString
                               -> IO CString
 #endif
-#else /* !__GLASGOW_HASKELL__ */
--- dummy implementation
-canonicalizePath :: FilePath -> IO FilePath
-canonicalizePath fpath = return fpath
-#endif /* !__GLASGOW_HASKELL__ */
+
+-- | 'makeRelative' the current directory.
+makeRelativeToCurrentDirectory :: FilePath -> IO FilePath
+makeRelativeToCurrentDirectory x = do
+    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 
@@ -629,23 +630,19 @@ foreign import stdcall unsafe "SearchPathA"
                          -> CString
                          -> Ptr CString
                          -> IO CInt
-# if !defined(__GLASGOW_HASKELL__)
-long_path_size :: Int
-long_path_size = 4096
-# endif
 #else
  do
   path <- getEnv "PATH"
-  search (parseSearchPath path)
+  search (splitSearchPath path)
   where
-    fileName = binary `joinFileExt` exeExtension
+    fileName = binary <.> exeExtension
 
     search :: [FilePath] -> IO (Maybe FilePath)
     search [] = return Nothing
     search (d:ds) = do
-	let path = d `joinFileName` fileName
-	b <- doesFileExist path
-	if b then return (Just path)
+        let path = d </> fileName
+        b <- doesFileExist path
+        if b then return (Just path)
              else search ds
 #endif
 
@@ -864,26 +861,24 @@ isDirectory stat = do
   return (s_isdir mode)
 
 fileNameEndClean :: String -> String
-fileNameEndClean name = 
-  if i > 0 && (ec == '\\' || ec == '/') then 
-     fileNameEndClean (take i name)
-   else
-     name
-  where
-      i  = (length name) - 1
-      ec = name !! i
-
-foreign import ccall unsafe "__hscore_long_path_size"
-  long_path_size :: Int
+fileNameEndClean name = if isDrive name then addTrailingPathSeparator name
+                                        else dropTrailingPathSeparator name
 
-foreign import ccall unsafe "__hscore_R_OK" r_OK :: CMode
-foreign import ccall unsafe "__hscore_W_OK" w_OK :: CMode
-foreign import ccall unsafe "__hscore_X_OK" x_OK :: CMode
+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 "__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
 
+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.
@@ -909,7 +904,7 @@ cannot be found.
 -}
 getHomeDirectory :: IO FilePath
 getHomeDirectory =
-#if __GLASGOW_HASKELL__ && defined(mingw32_HOST_OS)
+#if defined(mingw32_HOST_OS)
   allocaBytes long_path_size $ \pPath -> do
      r <- c_SHGetFolderPath nullPtr csidl_PROFILE nullPtr 0 pPath
      if (r < 0)
@@ -951,7 +946,7 @@ cannot be found.
 -}
 getAppUserDataDirectory :: String -> IO FilePath
 getAppUserDataDirectory appName = do
-#if __GLASGOW_HASKELL__ && defined(mingw32_HOST_OS)
+#if defined(mingw32_HOST_OS)
   allocaBytes long_path_size $ \pPath -> do
      r <- c_SHGetFolderPath nullPtr csidl_APPDATA nullPtr 0 pPath
      when (r<0) (raiseUnsupported "System.Directory.getAppUserDataDirectory")
@@ -985,7 +980,7 @@ cannot be found.
 -}
 getUserDocumentsDirectory :: IO FilePath
 getUserDocumentsDirectory = do
-#if __GLASGOW_HASKELL__ && defined(mingw32_HOST_OS)
+#if defined(mingw32_HOST_OS)
   allocaBytes long_path_size $ \pPath -> do
      r <- c_SHGetFolderPath nullPtr csidl_PERSONAL nullPtr 0 pPath
      when (r<0) (raiseUnsupported "System.Directory.getUserDocumentsDirectory")
@@ -1022,7 +1017,7 @@ The function doesn\'t verify whether the path exists.
 -}
 getTemporaryDirectory :: IO FilePath
 getTemporaryDirectory = do
-#if __GLASGOW_HASKELL__ && defined(mingw32_HOST_OS)
+#if defined(mingw32_HOST_OS)
   allocaBytes long_path_size $ \pPath -> do
      r <- c_GetTempPath (fromIntegral long_path_size) pPath
      peekCString pPath
@@ -1030,7 +1025,7 @@ getTemporaryDirectory = do
   catch (getEnv "TMPDIR") (\ex -> return "/tmp")
 #endif
 
-#if __GLASGOW_HASKELL__ && defined(mingw32_HOST_OS)
+#if defined(mingw32_HOST_OS)
 foreign import ccall unsafe "__hscore_getFolderPath"
             c_SHGetFolderPath :: Ptr () 
                               -> CInt 
@@ -1049,3 +1044,14 @@ raiseUnsupported loc =
    ioException (IOError Nothing UnsupportedOperation loc "unsupported operation" Nothing)
 
 #endif
+
+-- ToDo: This should be determined via autoconf (AC_EXEEXT)
+-- | Extension for executable files
+-- (typically @\"\"@ on Unix and @\"exe\"@ on Windows or OS\/2)
+exeExtension :: String
+#ifdef mingw32_HOST_OS
+exeExtension = "exe"
+#else
+exeExtension = ""
+#endif
+