# 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, incorporated herein by reference. '''command to display child changesets''' from mercurial import cmdutilfrom mercurial.commands import templateoptsfrom mercurial.i18n import _  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.    """    rev = opts.get('rev')    if file_:        ctx = repo.filectx(file_, changeid=rev)    else:        ctx = repo[rev]     displayer = cmdutil.show_changeset(ui, repo, opts)    for cctx in ctx.children():        displayer.show(cctx)  cmdtable = {    "children":        (children,         [('r', 'rev', '', _('show children of the specified revision')),         ] + templateopts,         _('hg children [-r REV] [FILE]')),}