# HG changeset patch
# User Lucas Moscovicz <lmoscovicz@fb.com>
# Date 2014-03-06 02:49:47
# Node ID 623ed0ed793e57723de6bb2f5351cfb3e2133ef5
# Parent  e07b1fd308057aee6c10bd164a78bd693ac7c8a7

cmdutil: changed walkchangerevs to use spanset instead of baseset

Using a spanset takes almost no memory at all. A baseset builds the entire
list in memory and is much slower for methods like __contains__.

diff --git a/mercurial/cmdutil.py b/mercurial/cmdutil.py
--- a/mercurial/cmdutil.py
+++ b/mercurial/cmdutil.py
@@ -1296,7 +1296,7 @@ def walkchangerevs(repo, match, opts, pr
     elif follow:
         revs = repo.revs('reverse(:.)')
     else:
-        revs = revset.baseset(repo)
+        revs = revset.spanset(repo)
         revs.reverse()
     if not revs:
         return []