# HG changeset patch
# User Idan Kamara <idankk86@gmail.com>
# Date 1304091816 -10800
# Node ID 3fc7154396d23426a355e9403890837118d045f6
# Parent  0e6f622f31cad54005fbe08838fc289e65f8310d
bookmarks: further restrict IOError on write

This won't risk losing the undo file when the error
was something other than file not found

diff -r 0e6f622f31ca -r 3fc7154396d2 mercurial/bookmarks.py
--- a/mercurial/bookmarks.py	Fri Apr 29 18:44:56 2011 +0300
+++ b/mercurial/bookmarks.py	Fri Apr 29 18:43:36 2011 +0300
@@ -73,7 +73,9 @@
 
     try:
         bms = repo.opener('bookmarks').read()
-    except IOError:
+    except IOError, inst:
+        if inst.errno != errno.ENOENT:
+            raise
         bms = ''
     repo.opener('undo.bookmarks', 'w').write(bms)