Mercurial > hg
changeset 20454:47fd57f650e5
revset: added lazyset implementation to merge revset
Performance benchmarking:
$ time hg log -qr "first(merge())"
102:58039eddbdda
real 0m0.276s
user 0m0.208s
sys 0m0.047s
$ time ./hg log -qr "first(merge())"
102:58039eddbdda
real 0m0.192s
user 0m0.154s
sys 0m0.027s
| author | Lucas Moscovicz <lmoscovicz@fb.com> |
|---|---|
| date | Thu, 30 Jan 2014 16:47:29 -0800 |
| parents | 6aa7dcae6bd8 |
| children | a2c08adbb86e |
| files | mercurial/revset.py |
| diffstat | 1 files changed, 1 insertions(+), 1 deletions(-) [+] |
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--- a/mercurial/revset.py Thu Jan 30 16:03:18 2014 -0800 +++ b/mercurial/revset.py Thu Jan 30 16:47:29 2014 -0800 @@ -992,7 +992,7 @@ # i18n: "merge" is a keyword getargs(x, 0, 0, _("merge takes no arguments")) cl = repo.changelog - return baseset([r for r in subset if cl.parentrevs(r)[1] != -1]) + return lazyset(subset, lambda r: cl.parentrevs(r)[1] != -1) def branchpoint(repo, subset, x): """``branchpoint()``