Mercurial > public > mercurial-scm > hg
diff mercurial/debugcommands.py @ 30401:869d660b8669
debugcommands: introduce standalone module for debug commands
commands.py is our largest .py file by nearly 2x. Debug commands live
in a world of their own. So let's extract them to their own module.
We start with "debugancestor."
We currently reuse the commands table with commands.py and have a hack
in dispatch.py for loading debugcommands.py. In the future, we could
potentially use a separate commands table and avoid the import of
debugcommands.py.
| author | Gregory Szorc <gregory.szorc@gmail.com> |
|---|---|
| date | Wed, 17 Aug 2016 21:07:38 -0700 |
| parents | |
| children | 945f8229b30d |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mercurial/debugcommands.py Wed Aug 17 21:07:38 2016 -0700 @@ -0,0 +1,42 @@ +# debugcommands.py - command processing for debug* commands +# +# Copyright 2005-2016 Matt Mackall <mpm@selenic.com> +# +# This software may be used and distributed according to the terms of the +# GNU General Public License version 2 or any later version. + +from __future__ import absolute_import + +import os + +from .i18n import _ +from . import ( + cmdutil, + commands, + error, + revlog, + scmutil, +) + +# We reuse the command table from commands because it is easier than +# teaching dispatch about multiple tables. +command = cmdutil.command(commands.table) + +@command('debugancestor', [], _('[INDEX] REV1 REV2'), optionalrepo=True) +def debugancestor(ui, repo, *args): + """find the ancestor revision of two revisions in a given index""" + if len(args) == 3: + index, rev1, rev2 = args + r = revlog.revlog(scmutil.opener(os.getcwd(), audit=False), index) + lookup = r.lookup + elif len(args) == 2: + if not repo: + raise error.Abort(_('there is no Mercurial repository here ' + '(.hg not found)')) + rev1, rev2 = args + r = repo.changelog + lookup = repo.lookup + else: + raise error.Abort(_('either two or three arguments required')) + a = r.ancestor(lookup(rev1), lookup(rev2)) + ui.write('%d:%s\n' % (r.rev(a), hex(a)))