X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=ghc%2Fcompiler%2Fmain%2FDriverUtil.hs;h=4932b9e48e132012e942c9525c04e57e04694591;hb=70b6c54b3c140d96b69287f8f400f88a0b7e9c18;hp=367ae543e92534d806d6b5eb5038335c725e1c46;hpb=ce9687a5f450014c5596b32de8e8a7b99b6389e8;p=ghc-hetmet.git

diff --git a/ghc/compiler/main/DriverUtil.hs b/ghc/compiler/main/DriverUtil.hs
index 367ae54..4932b9e 100644
--- a/ghc/compiler/main/DriverUtil.hs
+++ b/ghc/compiler/main/DriverUtil.hs
@@ -1,5 +1,5 @@
 -----------------------------------------------------------------------------
--- $Id: DriverUtil.hs,v 1.33 2002/08/29 15:44:15 simonmar Exp $
+-- $Id: DriverUtil.hs,v 1.38 2003/06/04 15:47:59 simonmar Exp $
 --
 -- Utils for the driver
 --
@@ -16,11 +16,12 @@ import Util
 import Panic
 import Config		( cLeadingUnderscore )
 
-import EXCEPTION as Exception
+import EXCEPTION	( Exception(..), finally, throwDyn, catchDyn, throw )
+import qualified EXCEPTION as Exception
 import DYNAMIC
 import DATA_IOREF	( IORef, readIORef, writeIORef )
 
-import Directory	( getDirectoryContents, doesDirectoryExist )
+import Directory
 import IO
 import List
 import Char
@@ -50,7 +51,7 @@ getOptionsFromSource file
 		   | otherwise -> return []
 
 matchOptions s
-  | Just s1 <- my_prefix_match "{-#" s,
+  | Just s1 <- my_prefix_match "{-#" s, -- -}
     Just s2 <- my_prefix_match "OPTIONS" (remove_spaces s1),
     Just s3 <- my_prefix_match "}-#" (reverse s2)
   = Just (reverse s3)
@@ -69,11 +70,20 @@ softGetDirectoryContents d
 	  )
 
 -----------------------------------------------------------------------------
+-- Create a hierarchy of directories
+
+createDirectoryHierarchy :: FilePath -> IO ()
+createDirectoryHierarchy dir = do
+  b <- doesDirectoryExist dir
+  when (not b) $ do
+	createDirectoryHierarchy (directoryOf dir)
+	createDirectory dir
+
+-----------------------------------------------------------------------------
 -- Verify that the 'dirname' portion of a FilePath exists.
 -- 
 doesDirNameExist :: FilePath -> IO Bool
-doesDirNameExist fpath = doesDirectoryExist (getdir fpath)
-
+doesDirNameExist fpath = doesDirectoryExist (directoryOf fpath)
 
 -----------------------------------------------------------------------------
 -- Prefixing underscore to linker-level names
@@ -148,6 +158,14 @@ splitFilename f = split_longest_prefix f (=='.')
 getFileSuffix :: String -> Suffix
 getFileSuffix f = drop_longest_prefix f (=='.')
 
+-- "foo/bar/xyzzy.ext" -> ("foo/bar", "xyzzy.ext")
+splitFilenameDir :: String -> (String,String)
+splitFilenameDir str
+  = let (dir, rest) = split_longest_prefix str isPathSeparator
+  	real_dir | null dir  = "."
+		 | otherwise = dir
+    in  (real_dir, rest)
+
 -- "foo/bar/xyzzy.ext" -> ("foo/bar", "xyzzy", ".ext")
 splitFilename3 :: String -> (String,String,Suffix)
 splitFilename3 str
@@ -187,16 +205,17 @@ split_longest_prefix s pred
 	(_:pre) -> (reverse pre, reverse suf)
   where (suf,pre) = break pred (reverse s)
 
-newsuf :: String -> Suffix -> String
-newsuf suf s = remove_suffix '.' s ++ suf
+replaceFilenameSuffix :: FilePath -> Suffix -> FilePath
+replaceFilenameSuffix s suf = remove_suffix '.' s ++ suf
 
--- getdir strips the filename off the input string, returning the directory.
-getdir :: String -> String
-getdir s = if null dir then "." else init dir
-  where dir = take_longest_prefix s isPathSeparator
+-- directoryOf strips the filename off the input string, returning
+-- the directory.
+directoryOf :: FilePath -> String
+directoryOf = fst . splitFilenameDir
 
-newdir :: String -> String -> String
-newdir dir s = dir ++ '/':drop_longest_prefix s isPathSeparator
+replaceFilenameDirectory :: FilePath -> String -> FilePath
+replaceFilenameDirectory s dir
+ = dir ++ '/':drop_longest_prefix s isPathSeparator
 
 remove_spaces :: String -> String
 remove_spaces = reverse . dropWhile isSpace . reverse . dropWhile isSpace