# HG changeset patch
# User Matt Mackall <mpm@selenic.com>
# Date 2012-03-16 22:42:21
# Node ID 7887b976650ac839734e0b858650b8f86910d2b1
# Parent  0628290d98dfbbe59d16751486340c0591e7c8d2

convert: deal with empty splicemap path (issue3311)

diff --git a/hgext/convert/common.py b/hgext/convert/common.py
--- a/hgext/convert/common.py
+++ b/hgext/convert/common.py
@@ -418,6 +418,8 @@ class mapfile(dict):
 
 def parsesplicemap(path):
     """Parse a splicemap, return a child/parents dictionary."""
+    if not path:
+        return {}
     m = {}
     try:
         fp = open(path, 'r')