branchcache: skip entries that are topological heads in the on disk file
In the majority of cases, topological heads are also branch heads. We have
efficient way to get the topological heads and efficient way to retrieve
their branch information. So there is little value in putting them in the branch
cache file explicitly. On the contrary, writing them explicitly tend to create
very large cache file that are inefficient to read and update.
So the branch cache v3 format is no longer including them. This changeset focus
on the format aspect and have no focus on the performance aspect. We will cover
that later.
# admin_commands.py - command processing for admin* commands
#
# Copyright 2022 Mercurial Developers
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
from .i18n import _
from .admin import chainsaw, verify
from . import error, registrar, transaction
table = {}
table.update(chainsaw.command._table)
command = registrar.command(table)
@command(
b'admin::verify',
[
(b'c', b'check', [], _(b'add a check'), _(b'CHECK')),
(b'o', b'option', [], _(b'pass an option to a check'), _(b'OPTION')),
],
helpcategory=command.CATEGORY_MAINTENANCE,
)
def admin_verify(ui, repo, **opts):
"""verify the integrity of the repository
Alternative UI to `hg verify` with a lot more control over the
verification process and better error reporting.
"""
if not repo.url().startswith(b'file:'):
raise error.Abort(_(b"cannot verify bundle or remote repos"))
if transaction.has_abandoned_transaction(repo):
ui.warn(_(b"abandoned transaction found - run hg recover\n"))
checks = opts.get("check", [])
options = opts.get("option", [])
funcs = verify.get_checks(repo, ui, names=checks, options=options)
ui.status(_(b"running %d checks\n") % len(funcs))
# Done in two times so the execution is separated from the resolving step
for name, func in sorted(funcs.items(), key=lambda x: x[0]):
ui.status(_(b"running %s\n") % name)
errors = func()
if errors:
ui.warn(_(b"found %d errors\n") % len(errors))