view hgext/amend.py @ 47682:78f7f0d490ee

dirstate-v2: Move fixed-size tree metadata into the docket file

Before this changeset, the dirstate-v2 data file contained not only nodes
and paths that may be reused when appending to an existing file,
but also some fixed-size metadata that applies to the entire tree
and was added at the end of the data file for every append.

This moves that metadata into the docket file, so that repeated "append"
operations without meaningful changes don’t actually need to grow any file.

Differential Revision: https://phab.mercurial-scm.org/D11098

# amend.py - provide the amend command
#
# Copyright 2017 Facebook, Inc.
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
"""provide the amend command (EXPERIMENTAL)

This extension provides an ``amend`` command that is similar to
``commit --amend`` but does not prompt an editor.
"""

from __future__ import absolute_import

from mercurial.i18n import _
from mercurial import (
    cmdutil,
    commands,
    registrar,
)

# 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 = b'ships-with-hg-core'

cmdtable = {}
command = registrar.command(cmdtable)


@command(
    b'amend',
    [
        (
            b'A',
            b'addremove',
            None,
            _(b'mark new/missing files as added/removed before committing'),
        ),
        (b'e', b'edit', None, _(b'invoke editor on commit messages')),
        (b'i', b'interactive', None, _(b'use interactive mode')),
        (
            b'',
            b'close-branch',
            None,
            _(b'mark a branch as closed, hiding it from the branch list'),
        ),
        (b's', b'secret', None, _(b'use the secret phase for committing')),
        (b'n', b'note', b'', _(b'store a note on the amend')),
    ]
    + cmdutil.walkopts
    + cmdutil.commitopts
    + cmdutil.commitopts2
    + cmdutil.commitopts3,
    _(b'[OPTION]... [FILE]...'),
    helpcategory=command.CATEGORY_COMMITTING,
    inferrepo=True,
)
def amend(ui, repo, *pats, **opts):
    """amend the working copy parent with all or specified outstanding changes

    Similar to :hg:`commit --amend`, but reuse the commit message without
    invoking editor, unless ``--edit`` was set.

    See :hg:`help commit` for more details.
    """
    cmdutil.check_note_size(opts)

    with repo.wlock(), repo.lock():
        if not opts.get('logfile'):
            opts['message'] = opts.get('message') or repo[b'.'].description()
        opts['amend'] = True
        return commands._docommit(ui, repo, *pats, **opts)