hgext/narrow/narrowrepo.py
author Martin von Zweigbergk <martinvonz@google.com>
Thu, 02 Aug 2018 23:50:47 -0700
changeset 38818 e411774a2e0f
parent 38128 1cba497491be
child 38835 a232e6744ba3
permissions -rw-r--r--
narrow: move status-filtering to core and to ctx One of my recent changes from repo.status(ctx1, ctx2) to ctx1.status(ctx2) broke some of our Google-internal tests. The problem turned out to be that the narrow extension was overriding repo.status() to make it filter out paths outside the narrowspec. When I changed to ctx1.status(ctx2), then that filtering obviously got lost. ctx.status() seems like a better method to do the filtering in, so this patch moves the filtering into that method, thereby also moving it out of the extension and into core. Differential Revision: https://phab.mercurial-scm.org/D4068

# narrowrepo.py - repository which supports narrow revlogs, lazy loading
#
# Copyright 2017 Google, Inc.
#
# 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

from mercurial import (
    changegroup,
    hg,
    narrowspec,
)

from . import (
    narrowdirstate,
    narrowrevlog,
)

def wrappostshare(orig, sourcerepo, destrepo, **kwargs):
    orig(sourcerepo, destrepo, **kwargs)
    if changegroup.NARROW_REQUIREMENT in sourcerepo.requirements:
        with destrepo.wlock():
            with destrepo.vfs('shared', 'a') as fp:
                fp.write(narrowspec.FILENAME + '\n')

def unsharenarrowspec(orig, ui, repo, repopath):
    if (changegroup.NARROW_REQUIREMENT in repo.requirements
        and repo.path == repopath and repo.shared()):
        srcrepo = hg.sharedreposource(repo)
        with srcrepo.vfs(narrowspec.FILENAME) as f:
            spec = f.read()
        with repo.vfs(narrowspec.FILENAME, 'w') as f:
            f.write(spec)
    return orig(ui, repo, repopath)

def wraprepo(repo):
    """Enables narrow clone functionality on a single local repository."""

    class narrowrepository(repo.__class__):

        def file(self, f):
            fl = super(narrowrepository, self).file(f)
            narrowrevlog.makenarrowfilelog(fl, self.narrowmatch())
            return fl

        def _makedirstate(self):
            dirstate = super(narrowrepository, self)._makedirstate()
            return narrowdirstate.wrapdirstate(self, dirstate)

    repo.__class__ = narrowrepository