[commit: ghc] wip/nfs-locking: Fix postProcessPackageData. (bf9edba)

[git at git.haskell.org]

Repository : ssh://git@git.haskell.org/ghc

On branch  : wip/nfs-locking
Link       : http://ghc.haskell.org/trac/ghc/changeset/bf9edba4364ffc59eb13b6501c11560b71b6e620/ghc

>---------------------------------------------------------------

commit bf9edba4364ffc59eb13b6501c11560b71b6e620
Author: Andrey Mokhov <andrey.mokhov at gmail.com>
Date:   Tue Dec 30 17:32:37 2014 +0000

    Fix postProcessPackageData.


>---------------------------------------------------------------

bf9edba4364ffc59eb13b6501c11560b71b6e620
 src/Util.hs | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/Util.hs b/src/Util.hs
index b8a38f4..846f547 100644
--- a/src/Util.hs
+++ b/src/Util.hs
@@ -19,8 +19,12 @@ replaceEq from = replaceIf (== from)
 
 -- Prepare a given 'packaga-data.mk' file for parsing by readConfigFile:
 -- 1) Drop lines containing '$'
--- 2) Replace '/' and '\' with '_'
+-- 2) Replace '/' and '\' with '_' before '='
 postProcessPackageData :: FilePath -> Action ()
 postProcessPackageData file = do
     pkgData <- (filter ('$' `notElem`) . lines) <$> liftIO (readFile file)
-    length pkgData `seq` writeFileLines file $ map (replaceIf isSlash '_') pkgData
+    length pkgData `seq` writeFileLines file $ map processLine pkgData
+      where
+        processLine line = replaceIf isSlash '_' prefix ++ suffix
+          where
+            (prefix, suffix) = break (== '=') line