vfs: add "open()" for newly added code paths which open files via vfs
This patch replaces "open()" by own "__call__()" defined in derived
classes at the first invocation, for efficiency of succeeding
invocations.
# 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 mercurial import cmdutil, commands
from mercurial.commands import templateopts
from mercurial.i18n import _
testedwith = 'internal'
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)
displayer.close()
cmdtable = {
"children":
(children,
[('r', 'rev', '',
_('show children of the specified revision'), _('REV')),
] + templateopts,
_('hg children [-r REV] [FILE]')),
}
commands.inferrepo += " children"