--- a/mercurial/scmutil.py	Thu Sep 13 23:50:45 2012 -0700
+++ b/mercurial/scmutil.py	Tue Oct 09 16:17:55 2012 +0900
@@ -219,6 +219,9 @@
     def mkdir(self, path=None):
         return os.mkdir(self.join(path))
 
+    def readdir(self, path=None, stat=None, skip=None):
+        return osutil.listdir(self.join(path), stat, skip)
+
     def stat(self, path=None):
         return os.stat(self.join(path))