# HG changeset patch
# User Benoît Allard <benoit@aeteurope.nl>
# Date 1327327287 -3600
# Node ID 638009474a3b0ed59f2e74aa518c878c596f9d32
# Parent  78819a1b530ec97408cbf919f537067f6b115f11
api: Don't crash if the diff has no lines (in case of merge for instance)

diff -r 78819a1b530e -r 638009474a3b review/api.py
--- a/review/api.py	Mon Jul 18 13:34:36 2011 -0400
+++ b/review/api.py	Mon Jan 23 15:01:27 2012 +0100
@@ -572,6 +572,10 @@
             diff_opts.git = True
             d = patch.diff(self.target, node1, node2, match=m, opts=diff_opts)
 
+            if not d:
+                # there might be no diff for the current file (merge)
+                continue
+
             # patch.diff will give us back a generator with two items
             # the first is the diff --git header, which we don't care about
             d.next()