# HG changeset patch
# User Augie Fackler <augie@google.com>
# Date 1470416990 14400
# Node ID ac5f6b11aa9149900e445b2bd7f896e89171bc83
# Parent  0839c8d34d7876c776da0317f3e6882ee3b041a6
bundlerevlog: use for loop over iterator instead of while True

The iter() builtin has a neat pattern where you give it a callable of
no arguments and a sentinel value, and you can then loop over the
function calls like a normal iterator. This cleans up the code a
little.

diff -r 0839c8d34d78 -r ac5f6b11aa91 mercurial/bundlerepo.py
--- a/mercurial/bundlerepo.py	Fri Aug 05 13:09:24 2016 -0400
+++ b/mercurial/bundlerepo.py	Fri Aug 05 13:09:50 2016 -0400
@@ -56,10 +56,8 @@
         self.repotiprev = n - 1
         chain = None
         self.bundlerevs = set() # used by 'bundle()' revset expression
-        while True:
-            chunkdata = bundle.deltachunk(chain)
-            if not chunkdata:
-                break
+        getchunk = lambda: bundle.deltachunk(chain)
+        for chunkdata in iter(getchunk, {}):
             node = chunkdata['node']
             p1 = chunkdata['p1']
             p2 = chunkdata['p2']