Mercurial > hg
view hgext/children.py @ 40298:9cadb0f5f227
rust: hooking into Python code
We introduce a new class called 'rustlazyancestors'
in the ancestors module, which is used only if
parsers.rustlazyancestors does exist.
The implementation of __contains__ stays unchanged,
but is now backed by the Rust iterator. It would
probably be a good candidate for further development,
though, as it is mostly looping, and duplicates the
'seen' set.
The Rust code could be further optimized, however it already
gives rise to performance improvements:
median timing from hg perfancestors:
- on pypy:
before: 0.077566s
after: 0.016676s -79%
- on mozilla central:
before: 0.190037s
after: 0.082225s -58%
- on a private repository (about one million revisions):
before: 0.567085s
after: 0.108816s -80%
- on another private repository (about 400 000 revisions):
before: 1.440918s
after: 0.290116s -80%
median timing for hg perfbranchmap base
- on pypy:
before: 1.383413s
after: 0.507993s -63%
- on mozilla central:
before: 2.821940s
after: 1.258902s -55%
- on a private repository (about one million revisions):
before: 77.065076s
after: 16.158475s -80%
- on another private repository (about 401 000 revisions):
before: 7.835503s
after: 3.545331s -54%
author | Georges Racinet <gracinet@anybox.fr> |
---|---|
date | Thu, 27 Sep 2018 16:55:44 +0200 |
parents | c303d65d2e34 |
children | 2372284d9457 |
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# Mercurial extension to provide the 'hg children' command # # Copyright 2007 by Intevation GmbH <intevation@intevation.de> # # Author(s): # Thomas Arendsen Hein <thomas@intevation.de> # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. '''command to display child changesets (DEPRECATED) This extension is deprecated. You should use :hg:`log -r "children(REV)"` instead. ''' from __future__ import absolute_import from mercurial.i18n import _ from mercurial import ( cmdutil, logcmdutil, pycompat, registrar, scmutil, ) templateopts = cmdutil.templateopts cmdtable = {} command = registrar.command(cmdtable) # Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for # extensions which SHIP WITH MERCURIAL. Non-mainline extensions should # be specifying the version(s) of Mercurial they are tested with, or # leave the attribute unspecified. testedwith = 'ships-with-hg-core' @command('children', [('r', 'rev', '.', _('show children of the specified revision'), _('REV')), ] + templateopts, _('hg children [-r REV] [FILE]'), helpcategory=command.CATEGORY_CHANGE_NAVIGATION, inferrepo=True) def children(ui, repo, file_=None, **opts): """show the children of the given or working directory revision Print the children of the working directory's revisions. If a revision is given via -r/--rev, the children of that revision will be printed. If a file argument is given, revision in which the file was last changed (after the working directory revision or the argument to --rev if given) is printed. Please use :hg:`log` instead:: hg children => hg log -r "children(.)" hg children -r REV => hg log -r "children(REV)" See :hg:`help log` and :hg:`help revsets.children`. """ opts = pycompat.byteskwargs(opts) rev = opts.get('rev') ctx = scmutil.revsingle(repo, rev) if file_: fctx = repo.filectx(file_, changeid=ctx.rev()) childctxs = [fcctx.changectx() for fcctx in fctx.children()] else: childctxs = ctx.children() displayer = logcmdutil.changesetdisplayer(ui, repo, opts) for cctx in childctxs: displayer.show(cctx) displayer.close()