# HG changeset patch
# User Pierre-Yves David <pierre-yves.david@fb.com>
# Date 1408145466 25200
# Node ID 827bce9e24fba5ed39043a35e842a07b8479a83f
# Parent  baecf4e1b7d02f62b368515bf07f5239b10ab9b9
pushbookmark: stop unrolling ancestors

Now that ancestors has the same boolean property as a list, we can stop unrolling
the set of ancestors. This should provide a significant speedup to this step as
ancestor objects are smart and lazy.

diff -r baecf4e1b7d0 -r 827bce9e24fb mercurial/exchange.py
--- a/mercurial/exchange.py	Fri Aug 15 15:57:50 2014 -0700
+++ b/mercurial/exchange.py	Fri Aug 15 16:31:06 2014 -0700
@@ -618,7 +618,7 @@
     remote = pushop.remote
     ui.debug("checking for updated bookmarks\n")
     revnums = map(repo.changelog.rev, pushop.revs or [])
-    ancestors = [a for a in repo.changelog.ancestors(revnums, inclusive=True)]
+    ancestors = repo.changelog.ancestors(revnums, inclusive=True)
     (addsrc, adddst, advsrc, advdst, diverge, differ, invalid
      ) = bookmarks.compare(repo, repo._bookmarks, remote.listkeys('bookmarks'),
                            srchex=hex)