view mercurial/configitems.py @ 47338:f27f2afb15da

dirstate-tree: Skip readdir() in `hg status -mard`

When running the status algorithm in a mode where we don’t list unknown
or ignored files, all we care about are files that are listed in the dirstate.
We can there for skip making expensive calls to readdir() to list the contents
of filesystem directories, and instead only run stat() to get the filesystem
state of files listed in the dirstate. (This state may be an error for files
that don’t exist anymore on the filesystem.)

On 16 CPU threads, this reduces the time spent in the `status()` function for
`hg status -mard` on an old snapshot of mozilla-central from ~70ms to ~50ms.

Differential Revision: https://phab.mercurial-scm.org/D10752

# configitems.py - centralized declaration of configuration option
#
#  Copyright 2017 Pierre-Yves David <[e-mail]>
#
# 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 functools
import re

from . import (
    encoding,
    error,
)


def loadconfigtable(ui, extname, configtable):
    """update config item known to the ui with the extension ones"""
    for section, items in sorted(configtable.items()):
        knownitems = ui._knownconfig.setdefault(section, itemregister())
        knownkeys = set(knownitems)
        newkeys = set(items)
        for key in sorted(knownkeys & newkeys):
            msg = b"extension '%s' overwrite config item '%s.%s'"
            msg %= (extname, section, key)
            ui.develwarn(msg, config=b'warn-config')

        knownitems.update(items)


class configitem(object):
    """represent a known config item

    :section: the official config section where to find this item,
       :name: the official name within the section,
    :default: default value for this item,
    :alias: optional list of tuples as alternatives,
    :generic: this is a generic definition, match name using regular expression.
    """

    def __init__(
        self,
        section,
        name,
        default=None,
        alias=(),
        generic=False,
        priority=0,
        experimental=False,
    ):
        self.section = section
        self.name = name
        self.default = default
        self.alias = list(alias)
        self.generic = generic
        self.priority = priority
        self.experimental = experimental
        self._re = None
        if generic:
            self._re = re.compile(self.name)


class itemregister(dict):
    """A specialized dictionary that can handle wild-card selection"""

    def __init__(self):
        super(itemregister, self).__init__()
        self._generics = set()

    def update(self, other):
        super(itemregister, self).update(other)
        self._generics.update(other._generics)

    def __setitem__(self, key, item):
        super(itemregister, self).__setitem__(key, item)
        if item.generic:
            self._generics.add(item)

    def get(self, key):
        baseitem = super(itemregister, self).get(key)
        if baseitem is not None and not baseitem.generic:
            return baseitem

        # search for a matching generic item
        generics = sorted(self._generics, key=(lambda x: (x.priority, x.name)))
        for item in generics:
            # we use 'match' instead of 'search' to make the matching simpler
            # for people unfamiliar with regular expression. Having the match
            # rooted to the start of the string will produce less surprising
            # result for user writing simple regex for sub-attribute.
            #
            # For example using "color\..*" match produces an unsurprising
            # result, while using search could suddenly match apparently
            # unrelated configuration that happens to contains "color."
            # anywhere. This is a tradeoff where we favor requiring ".*" on
            # some match to avoid the need to prefix most pattern with "^".
            # The "^" seems more error prone.
            if item._re.match(key):
                return item

        return None


coreitems = {}


def _register(configtable, *args, **kwargs):
    item = configitem(*args, **kwargs)
    section = configtable.setdefault(item.section, itemregister())
    if item.name in section:
        msg = b"duplicated config item registration for '%s.%s'"
        raise error.ProgrammingError(msg % (item.section, item.name))
    section[item.name] = item


# special value for case where the default is derived from other values
dynamicdefault = object()

# Registering actual config items


def getitemregister(configtable):
    f = functools.partial(_register, configtable)
    # export pseudo enum as configitem.*
    f.dynamicdefault = dynamicdefault
    return f


coreconfigitem = getitemregister(coreitems)


def _registerdiffopts(section, configprefix=b''):
    coreconfigitem(
        section,
        configprefix + b'nodates',
        default=False,
    )
    coreconfigitem(
        section,
        configprefix + b'showfunc',
        default=False,
    )
    coreconfigitem(
        section,
        configprefix + b'unified',
        default=None,
    )
    coreconfigitem(
        section,
        configprefix + b'git',
        default=False,
    )
    coreconfigitem(
        section,
        configprefix + b'ignorews',
        default=False,
    )
    coreconfigitem(
        section,
        configprefix + b'ignorewsamount',
        default=False,
    )
    coreconfigitem(
        section,
        configprefix + b'ignoreblanklines',
        default=False,
    )
    coreconfigitem(
        section,
        configprefix + b'ignorewseol',
        default=False,
    )
    coreconfigitem(
        section,
        configprefix + b'nobinary',
        default=False,
    )
    coreconfigitem(
        section,
        configprefix + b'noprefix',
        default=False,
    )
    coreconfigitem(
        section,
        configprefix + b'word-diff',
        default=False,
    )


coreconfigitem(
    b'alias',
    b'.*',
    default=dynamicdefault,
    generic=True,
)
coreconfigitem(
    b'auth',
    b'cookiefile',
    default=None,
)
_registerdiffopts(section=b'annotate')
# bookmarks.pushing: internal hack for discovery
coreconfigitem(
    b'bookmarks',
    b'pushing',
    default=list,
)
# bundle.mainreporoot: internal hack for bundlerepo
coreconfigitem(
    b'bundle',
    b'mainreporoot',
    default=b'',
)
coreconfigitem(
    b'censor',
    b'policy',
    default=b'abort',
    experimental=True,
)
coreconfigitem(
    b'chgserver',
    b'idletimeout',
    default=3600,
)
coreconfigitem(
    b'chgserver',
    b'skiphash',
    default=False,
)
coreconfigitem(
    b'cmdserver',
    b'log',
    default=None,
)
coreconfigitem(
    b'cmdserver',
    b'max-log-files',
    default=7,
)
coreconfigitem(
    b'cmdserver',
    b'max-log-size',
    default=b'1 MB',
)
coreconfigitem(
    b'cmdserver',
    b'max-repo-cache',
    default=0,
    experimental=True,
)
coreconfigitem(
    b'cmdserver',
    b'message-encodings',
    default=list,
)
coreconfigitem(
    b'cmdserver',
    b'track-log',
    default=lambda: [b'chgserver', b'cmdserver', b'repocache'],
)
coreconfigitem(
    b'cmdserver',
    b'shutdown-on-interrupt',
    default=True,
)
coreconfigitem(
    b'color',
    b'.*',
    default=None,
    generic=True,
)
coreconfigitem(
    b'color',
    b'mode',
    default=b'auto',
)
coreconfigitem(
    b'color',
    b'pagermode',
    default=dynamicdefault,
)
coreconfigitem(
    b'command-templates',
    b'graphnode',
    default=None,
    alias=[(b'ui', b'graphnodetemplate')],
)
coreconfigitem(
    b'command-templates',
    b'log',
    default=None,
    alias=[(b'ui', b'logtemplate')],
)
coreconfigitem(
    b'command-templates',
    b'mergemarker',
    default=(
        b'{node|short} '
        b'{ifeq(tags, "tip", "", '
        b'ifeq(tags, "", "", "{tags} "))}'
        b'{if(bookmarks, "{bookmarks} ")}'
        b'{ifeq(branch, "default", "", "{branch} ")}'
        b'- {author|user}: {desc|firstline}'
    ),
    alias=[(b'ui', b'mergemarkertemplate')],
)
coreconfigitem(
    b'command-templates',
    b'pre-merge-tool-output',
    default=None,
    alias=[(b'ui', b'pre-merge-tool-output-template')],
)
coreconfigitem(
    b'command-templates',
    b'oneline-summary',
    default=None,
)
coreconfigitem(
    b'command-templates',
    b'oneline-summary.*',
    default=dynamicdefault,
    generic=True,
)
_registerdiffopts(section=b'commands', configprefix=b'commit.interactive.')
coreconfigitem(
    b'commands',
    b'commit.post-status',
    default=False,
)
coreconfigitem(
    b'commands',
    b'grep.all-files',
    default=False,
    experimental=True,
)
coreconfigitem(
    b'commands',
    b'merge.require-rev',
    default=False,
)
coreconfigitem(
    b'commands',
    b'push.require-revs',
    default=False,
)
coreconfigitem(
    b'commands',
    b'resolve.confirm',
    default=False,
)
coreconfigitem(
    b'commands',
    b'resolve.explicit-re-merge',
    default=False,
)
coreconfigitem(
    b'commands',
    b'resolve.mark-check',
    default=b'none',
)
_registerdiffopts(section=b'commands', configprefix=b'revert.interactive.')
coreconfigitem(
    b'commands',
    b'show.aliasprefix',
    default=list,
)
coreconfigitem(
    b'commands',
    b'status.relative',
    default=False,
)
coreconfigitem(
    b'commands',
    b'status.skipstates',
    default=[],
    experimental=True,
)
coreconfigitem(
    b'commands',
    b'status.terse',
    default=b'',
)
coreconfigitem(
    b'commands',
    b'status.verbose',
    default=False,
)
coreconfigitem(
    b'commands',
    b'update.check',
    default=None,
)
coreconfigitem(
    b'commands',
    b'update.requiredest',
    default=False,
)
coreconfigitem(
    b'committemplate',
    b'.*',
    default=None,
    generic=True,
)
coreconfigitem(
    b'convert',
    b'bzr.saverev',
    default=True,
)
coreconfigitem(
    b'convert',
    b'cvsps.cache',
    default=True,
)
coreconfigitem(
    b'convert',
    b'cvsps.fuzz',
    default=60,
)
coreconfigitem(
    b'convert',
    b'cvsps.logencoding',
    default=None,
)
coreconfigitem(
    b'convert',
    b'cvsps.mergefrom',
    default=None,
)
coreconfigitem(
    b'convert',
    b'cvsps.mergeto',
    default=None,
)
coreconfigitem(
    b'convert',
    b'git.committeractions',
    default=lambda: [b'messagedifferent'],
)
coreconfigitem(
    b'convert',
    b'git.extrakeys',
    default=list,
)
coreconfigitem(
    b'convert',
    b'git.findcopiesharder',
    default=False,
)
coreconfigitem(
    b'convert',
    b'git.remoteprefix',
    default=b'remote',
)
coreconfigitem(
    b'convert',
    b'git.renamelimit',
    default=400,
)
coreconfigitem(
    b'convert',
    b'git.saverev',
    default=True,
)
coreconfigitem(
    b'convert',
    b'git.similarity',
    default=50,
)
coreconfigitem(
    b'convert',
    b'git.skipsubmodules',
    default=False,
)
coreconfigitem(
    b'convert',
    b'hg.clonebranches',
    default=False,
)
coreconfigitem(
    b'convert',
    b'hg.ignoreerrors',
    default=False,
)
coreconfigitem(
    b'convert',
    b'hg.preserve-hash',
    default=False,
)
coreconfigitem(
    b'convert',
    b'hg.revs',
    default=None,
)
coreconfigitem(
    b'convert',
    b'hg.saverev',
    default=False,
)
coreconfigitem(
    b'convert',
    b'hg.sourcename',
    default=None,
)
coreconfigitem(
    b'convert',
    b'hg.startrev',
    default=None,
)
coreconfigitem(
    b'convert',
    b'hg.tagsbranch',
    default=b'default',
)
coreconfigitem(
    b'convert',
    b'hg.usebranchnames',
    default=True,
)
coreconfigitem(
    b'convert',
    b'ignoreancestorcheck',
    default=False,
    experimental=True,
)
coreconfigitem(
    b'convert',
    b'localtimezone',
    default=False,
)
coreconfigitem(
    b'convert',
    b'p4.encoding',
    default=dynamicdefault,
)
coreconfigitem(
    b'convert',
    b'p4.startrev',
    default=0,
)
coreconfigitem(
    b'convert',
    b'skiptags',
    default=False,
)
coreconfigitem(
    b'convert',
    b'svn.debugsvnlog',
    default=True,
)
coreconfigitem(
    b'convert',
    b'svn.trunk',
    default=None,
)
coreconfigitem(
    b'convert',
    b'svn.tags',
    default=None,
)
coreconfigitem(
    b'convert',
    b'svn.branches',
    default=None,
)
coreconfigitem(
    b'convert',
    b'svn.startrev',
    default=0,
)
coreconfigitem(
    b'convert',
    b'svn.dangerous-set-commit-dates',
    default=False,
)
coreconfigitem(
    b'debug',
    b'dirstate.delaywrite',
    default=0,
)
coreconfigitem(
    b'debug',
    b'revlog.verifyposition.changelog',
    default=b'',
)
coreconfigitem(
    b'defaults',
    b'.*',
    default=None,
    generic=True,
)
coreconfigitem(
    b'devel',
    b'all-warnings',
    default=False,
)
coreconfigitem(
    b'devel',
    b'bundle2.debug',
    default=False,
)
coreconfigitem(
    b'devel',
    b'bundle.delta',
    default=b'',
)
coreconfigitem(
    b'devel',
    b'cache-vfs',
    default=None,
)
coreconfigitem(
    b'devel',
    b'check-locks',
    default=False,
)
coreconfigitem(
    b'devel',
    b'check-relroot',
    default=False,
)
# Track copy information for all file, not just "added" one (very slow)
coreconfigitem(
    b'devel',
    b'copy-tracing.trace-all-files',
    default=False,
)
coreconfigitem(
    b'devel',
    b'default-date',
    default=None,
)
coreconfigitem(
    b'devel',
    b'deprec-warn',
    default=False,
)
coreconfigitem(
    b'devel',
    b'disableloaddefaultcerts',
    default=False,
)
coreconfigitem(
    b'devel',
    b'warn-empty-changegroup',
    default=False,
)
coreconfigitem(
    b'devel',
    b'legacy.exchange',
    default=list,
)
# When True, revlogs use a special reference version of the nodemap, that is not
# performant but is "known" to behave properly.
coreconfigitem(
    b'devel',
    b'persistent-nodemap',
    default=False,
)
coreconfigitem(
    b'devel',
    b'servercafile',
    default=b'',
)
coreconfigitem(
    b'devel',
    b'serverexactprotocol',
    default=b'',
)
coreconfigitem(
    b'devel',
    b'serverrequirecert',
    default=False,
)
coreconfigitem(
    b'devel',
    b'strip-obsmarkers',
    default=True,
)
coreconfigitem(
    b'devel',
    b'warn-config',
    default=None,
)
coreconfigitem(
    b'devel',
    b'warn-config-default',
    default=None,
)
coreconfigitem(
    b'devel',
    b'user.obsmarker',
    default=None,
)
coreconfigitem(
    b'devel',
    b'warn-config-unknown',
    default=None,
)
coreconfigitem(
    b'devel',
    b'debug.copies',
    default=False,
)
coreconfigitem(
    b'devel',
    b'copy-tracing.multi-thread',
    default=True,
)
coreconfigitem(
    b'devel',
    b'debug.extensions',
    default=False,
)
coreconfigitem(
    b'devel',
    b'debug.repo-filters',
    default=False,
)
coreconfigitem(
    b'devel',
    b'debug.peer-request',
    default=False,
)
# If discovery.exchange-heads is False, the discovery will not start with
# remote head fetching and local head querying.
coreconfigitem(
    b'devel',
    b'discovery.exchange-heads',
    default=True,
)
# If discovery.grow-sample is False, the sample size used in set discovery will
# not be increased through the process
coreconfigitem(
    b'devel',
    b'discovery.grow-sample',
    default=True,
)
# When discovery.grow-sample.dynamic is True, the default, the sample size is
# adapted to the shape of the undecided set (it is set to the max of:
# <target-size>, len(roots(undecided)), len(heads(undecided)
coreconfigitem(
    b'devel',
    b'discovery.grow-sample.dynamic',
    default=True,
)
# discovery.grow-sample.rate control the rate at which the sample grow
coreconfigitem(
    b'devel',
    b'discovery.grow-sample.rate',
    default=1.05,
)
# If discovery.randomize is False, random sampling during discovery are
# deterministic. It is meant for integration tests.
coreconfigitem(
    b'devel',
    b'discovery.randomize',
    default=True,
)
# Control the initial size of the discovery sample
coreconfigitem(
    b'devel',
    b'discovery.sample-size',
    default=200,
)
# Control the initial size of the discovery for initial change
coreconfigitem(
    b'devel',
    b'discovery.sample-size.initial',
    default=100,
)
_registerdiffopts(section=b'diff')
coreconfigitem(
    b'diff',
    b'merge',
    default=False,
    experimental=True,
)
coreconfigitem(
    b'email',
    b'bcc',
    default=None,
)
coreconfigitem(
    b'email',
    b'cc',
    default=None,
)
coreconfigitem(
    b'email',
    b'charsets',
    default=list,
)
coreconfigitem(
    b'email',
    b'from',
    default=None,
)
coreconfigitem(
    b'email',
    b'method',
    default=b'smtp',
)
coreconfigitem(
    b'email',
    b'reply-to',
    default=None,
)
coreconfigitem(
    b'email',
    b'to',
    default=None,
)
coreconfigitem(
    b'experimental',
    b'archivemetatemplate',
    default=dynamicdefault,
)
coreconfigitem(
    b'experimental',
    b'auto-publish',
    default=b'publish',
)
coreconfigitem(
    b'experimental',
    b'bundle-phases',
    default=False,
)
coreconfigitem(
    b'experimental',
    b'bundle2-advertise',
    default=True,
)
coreconfigitem(
    b'experimental',
    b'bundle2-output-capture',
    default=False,
)
coreconfigitem(
    b'experimental',
    b'bundle2.pushback',
    default=False,
)
coreconfigitem(
    b'experimental',
    b'bundle2lazylocking',
    default=False,
)
coreconfigitem(
    b'experimental',
    b'bundlecomplevel',
    default=None,
)
coreconfigitem(
    b'experimental',
    b'bundlecomplevel.bzip2',
    default=None,
)
coreconfigitem(
    b'experimental',
    b'bundlecomplevel.gzip',
    default=None,
)
coreconfigitem(
    b'experimental',
    b'bundlecomplevel.none',
    default=None,
)
coreconfigitem(
    b'experimental',
    b'bundlecomplevel.zstd',
    default=None,
)
coreconfigitem(
    b'experimental',
    b'bundlecompthreads',
    default=None,
)
coreconfigitem(
    b'experimental',
    b'bundlecompthreads.bzip2',
    default=None,
)
coreconfigitem(
    b'experimental',
    b'bundlecompthreads.gzip',
    default=None,
)
coreconfigitem(
    b'experimental',
    b'bundlecompthreads.none',
    default=None,
)
coreconfigitem(
    b'experimental',
    b'bundlecompthreads.zstd',
    default=None,
)
coreconfigitem(
    b'experimental',
    b'changegroup3',
    default=False,
)
coreconfigitem(
    b'experimental',
    b'changegroup4',
    default=False,
)
coreconfigitem(
    b'experimental',
    b'cleanup-as-archived',
    default=False,
)
coreconfigitem(
    b'experimental',
    b'clientcompressionengines',
    default=list,
)
coreconfigitem(
    b'experimental',
    b'copytrace',
    default=b'on',
)
coreconfigitem(
    b'experimental',
    b'copytrace.movecandidateslimit',
    default=100,
)
coreconfigitem(
    b'experimental',
    b'copytrace.sourcecommitlimit',
    default=100,
)
coreconfigitem(
    b'experimental',
    b'copies.read-from',
    default=b"filelog-only",
)
coreconfigitem(
    b'experimental',
    b'copies.write-to',
    default=b'filelog-only',
)
coreconfigitem(
    b'experimental',
    b'crecordtest',
    default=None,
)
coreconfigitem(
    b'experimental',
    b'directaccess',
    default=False,
)
coreconfigitem(
    b'experimental',
    b'directaccess.revnums',
    default=False,
)
coreconfigitem(
    b'experimental',
    b'dirstate-tree.in-memory',
    default=False,
)
coreconfigitem(
    b'experimental',
    b'editortmpinhg',
    default=False,
)
coreconfigitem(
    b'experimental',
    b'evolution',
    default=list,
)
coreconfigitem(
    b'experimental',
    b'evolution.allowdivergence',
    default=False,
    alias=[(b'experimental', b'allowdivergence')],
)
coreconfigitem(
    b'experimental',
    b'evolution.allowunstable',
    default=None,
)
coreconfigitem(
    b'experimental',
    b'evolution.createmarkers',
    default=None,
)
coreconfigitem(
    b'experimental',
    b'evolution.effect-flags',
    default=True,
    alias=[(b'experimental', b'effect-flags')],
)
coreconfigitem(
    b'experimental',
    b'evolution.exchange',
    default=None,
)
coreconfigitem(
    b'experimental',
    b'evolution.bundle-obsmarker',
    default=False,
)
coreconfigitem(
    b'experimental',
    b'evolution.bundle-obsmarker:mandatory',
    default=True,
)
coreconfigitem(
    b'experimental',
    b'log.topo',
    default=False,
)
coreconfigitem(
    b'experimental',
    b'evolution.report-instabilities',
    default=True,
)
coreconfigitem(
    b'experimental',
    b'evolution.track-operation',
    default=True,
)
# repo-level config to exclude a revset visibility
#
# The target use case is to use `share` to expose different subset of the same
# repository, especially server side. See also `server.view`.
coreconfigitem(
    b'experimental',
    b'extra-filter-revs',
    default=None,
)
coreconfigitem(
    b'experimental',
    b'maxdeltachainspan',
    default=-1,
)
# tracks files which were undeleted (merge might delete them but we explicitly
# kept/undeleted them) and creates new filenodes for them
coreconfigitem(
    b'experimental',
    b'merge-track-salvaged',
    default=False,
)
coreconfigitem(
    b'experimental',
    b'mergetempdirprefix',
    default=None,
)
coreconfigitem(
    b'experimental',
    b'mmapindexthreshold',
    default=None,
)
coreconfigitem(
    b'experimental',
    b'narrow',
    default=False,
)
coreconfigitem(
    b'experimental',
    b'nonnormalparanoidcheck',
    default=False,
)
coreconfigitem(
    b'experimental',
    b'exportableenviron',
    default=list,
)
coreconfigitem(
    b'experimental',
    b'extendedheader.index',
    default=None,
)
coreconfigitem(
    b'experimental',
    b'extendedheader.similarity',
    default=False,
)
coreconfigitem(
    b'experimental',
    b'graphshorten',
    default=False,
)
coreconfigitem(
    b'experimental',
    b'graphstyle.parent',
    default=dynamicdefault,
)
coreconfigitem(
    b'experimental',
    b'graphstyle.missing',
    default=dynamicdefault,
)
coreconfigitem(
    b'experimental',
    b'graphstyle.grandparent',
    default=dynamicdefault,
)
coreconfigitem(
    b'experimental',
    b'hook-track-tags',
    default=False,
)
coreconfigitem(
    b'experimental',
    b'httppeer.advertise-v2',
    default=False,
)
coreconfigitem(
    b'experimental',
    b'httppeer.v2-encoder-order',
    default=None,
)
coreconfigitem(
    b'experimental',
    b'httppostargs',
    default=False,
)
coreconfigitem(b'experimental', b'nointerrupt', default=False)
coreconfigitem(b'experimental', b'nointerrupt-interactiveonly', default=True)

coreconfigitem(
    b'experimental',
    b'obsmarkers-exchange-debug',
    default=False,
)
coreconfigitem(
    b'experimental',
    b'remotenames',
    default=False,
)
coreconfigitem(
    b'experimental',
    b'removeemptydirs',
    default=True,
)
coreconfigitem(
    b'experimental',
    b'revert.interactive.select-to-keep',
    default=False,
)
coreconfigitem(
    b'experimental',
    b'revisions.prefixhexnode',
    default=False,
)
# "out of experimental" todo list.
#
# * include management of a persistent nodemap in the main docket
# * enforce a "no-truncate" policy for mmap safety
#      - for censoring operation
#      - for stripping operation
#      - for rollback operation
# * proper streaming (race free) of the docket file
# * track garbage data to evemtually allow rewriting -existing- sidedata.
# * Exchange-wise, we will also need to do something more efficient than
#   keeping references to the affected revlogs, especially memory-wise when
#   rewriting sidedata.
# * sidedata compression
# * introduce a proper solution to reduce the number of filelog related files.
# * Improvement to consider
#   - avoid compression header in chunk using the default compression?
#   - forbid "inline" compression mode entirely?
#   - split the data offset and flag field (the 2 bytes save are mostly trouble)
#   - keep track of uncompressed -chunk- size (to preallocate memory better)
#   - keep track of chain base or size (probably not that useful anymore)
#   - store data and sidedata in different files
coreconfigitem(
    b'experimental',
    b'revlogv2',
    default=None,
)
coreconfigitem(
    b'experimental',
    b'revisions.disambiguatewithin',
    default=None,
)
coreconfigitem(
    b'experimental',
    b'rust.index',
    default=False,
)
coreconfigitem(
    b'experimental',
    b'server.filesdata.recommended-batch-size',
    default=50000,
)
coreconfigitem(
    b'experimental',
    b'server.manifestdata.recommended-batch-size',
    default=100000,
)
coreconfigitem(
    b'experimental',
    b'server.stream-narrow-clones',
    default=False,
)
coreconfigitem(
    b'experimental',
    b'single-head-per-branch',
    default=False,
)
coreconfigitem(
    b'experimental',
    b'single-head-per-branch:account-closed-heads',
    default=False,
)
coreconfigitem(
    b'experimental',
    b'single-head-per-branch:public-changes-only',
    default=False,
)
coreconfigitem(
    b'experimental',
    b'sshserver.support-v2',
    default=False,
)
coreconfigitem(
    b'experimental',
    b'sparse-read',
    default=False,
)
coreconfigitem(
    b'experimental',
    b'sparse-read.density-threshold',
    default=0.50,
)
coreconfigitem(
    b'experimental',
    b'sparse-read.min-gap-size',
    default=b'65K',
)
coreconfigitem(
    b'experimental',
    b'treemanifest',
    default=False,
)
coreconfigitem(
    b'experimental',
    b'update.atomic-file',
    default=False,
)
coreconfigitem(
    b'experimental',
    b'sshpeer.advertise-v2',
    default=False,
)
coreconfigitem(
    b'experimental',
    b'web.apiserver',
    default=False,
)
coreconfigitem(
    b'experimental',
    b'web.api.http-v2',
    default=False,
)
coreconfigitem(
    b'experimental',
    b'web.api.debugreflect',
    default=False,
)
coreconfigitem(
    b'experimental',
    b'worker.wdir-get-thread-safe',
    default=False,
)
coreconfigitem(
    b'experimental',
    b'worker.repository-upgrade',
    default=False,
)
coreconfigitem(
    b'experimental',
    b'xdiff',
    default=False,
)
coreconfigitem(
    b'extensions',
    b'.*',
    default=None,
    generic=True,
)
coreconfigitem(
    b'extdata',
    b'.*',
    default=None,
    generic=True,
)
coreconfigitem(
    b'format',
    b'bookmarks-in-store',
    default=False,
)
coreconfigitem(
    b'format',
    b'chunkcachesize',
    default=None,
    experimental=True,
)
coreconfigitem(
    # Enable this dirstate format *when creating a new repository*.
    # Which format to use for existing repos is controlled by .hg/requires
    b'format',
    b'exp-dirstate-v2',
    default=False,
    experimental=True,
)
coreconfigitem(
    b'format',
    b'dotencode',
    default=True,
)
coreconfigitem(
    b'format',
    b'generaldelta',
    default=False,
    experimental=True,
)
coreconfigitem(
    b'format',
    b'manifestcachesize',
    default=None,
    experimental=True,
)
coreconfigitem(
    b'format',
    b'maxchainlen',
    default=dynamicdefault,
    experimental=True,
)
coreconfigitem(
    b'format',
    b'obsstore-version',
    default=None,
)
coreconfigitem(
    b'format',
    b'sparse-revlog',
    default=True,
)
coreconfigitem(
    b'format',
    b'revlog-compression',
    default=lambda: [b'zstd', b'zlib'],
    alias=[(b'experimental', b'format.compression')],
)
# Experimental TODOs:
#
# * Same as for evlogv2 (but for the reduction of the number of files)
# * Improvement to investigate
#   - storing .hgtags fnode
#   - storing `rank` of changesets
#   - storing branch related identifier

coreconfigitem(
    b'format',
    b'exp-use-changelog-v2',
    default=None,
    experimental=True,
)
coreconfigitem(
    b'format',
    b'usefncache',
    default=True,
)
coreconfigitem(
    b'format',
    b'usegeneraldelta',
    default=True,
)
coreconfigitem(
    b'format',
    b'usestore',
    default=True,
)


def _persistent_nodemap_default():
    """compute `use-persistent-nodemap` default value

    The feature is disabled unless a fast implementation is available.
    """
    from . import policy

    return policy.importrust('revlog') is not None


coreconfigitem(
    b'format',
    b'use-persistent-nodemap',
    default=_persistent_nodemap_default,
)
coreconfigitem(
    b'format',
    b'exp-use-copies-side-data-changeset',
    default=False,
    experimental=True,
)
coreconfigitem(
    b'format',
    b'use-share-safe',
    default=False,
)
coreconfigitem(
    b'format',
    b'internal-phase',
    default=False,
    experimental=True,
)
coreconfigitem(
    b'fsmonitor',
    b'warn_when_unused',
    default=True,
)
coreconfigitem(
    b'fsmonitor',
    b'warn_update_file_count',
    default=50000,
)
coreconfigitem(
    b'fsmonitor',
    b'warn_update_file_count_rust',
    default=400000,
)
coreconfigitem(
    b'help',
    br'hidden-command\..*',
    default=False,
    generic=True,
)
coreconfigitem(
    b'help',
    br'hidden-topic\..*',
    default=False,
    generic=True,
)
coreconfigitem(
    b'hooks',
    b'[^:]*',
    default=dynamicdefault,
    generic=True,
)
coreconfigitem(
    b'hooks',
    b'.*:run-with-plain',
    default=True,
    generic=True,
)
coreconfigitem(
    b'hgweb-paths',
    b'.*',
    default=list,
    generic=True,
)
coreconfigitem(
    b'hostfingerprints',
    b'.*',
    default=list,
    generic=True,
)
coreconfigitem(
    b'hostsecurity',
    b'ciphers',
    default=None,
)
coreconfigitem(
    b'hostsecurity',
    b'minimumprotocol',
    default=dynamicdefault,
)
coreconfigitem(
    b'hostsecurity',
    b'.*:minimumprotocol$',
    default=dynamicdefault,
    generic=True,
)
coreconfigitem(
    b'hostsecurity',
    b'.*:ciphers$',
    default=dynamicdefault,
    generic=True,
)
coreconfigitem(
    b'hostsecurity',
    b'.*:fingerprints$',
    default=list,
    generic=True,
)
coreconfigitem(
    b'hostsecurity',
    b'.*:verifycertsfile$',
    default=None,
    generic=True,
)

coreconfigitem(
    b'http_proxy',
    b'always',
    default=False,
)
coreconfigitem(
    b'http_proxy',
    b'host',
    default=None,
)
coreconfigitem(
    b'http_proxy',
    b'no',
    default=list,
)
coreconfigitem(
    b'http_proxy',
    b'passwd',
    default=None,
)
coreconfigitem(
    b'http_proxy',
    b'user',
    default=None,
)

coreconfigitem(
    b'http',
    b'timeout',
    default=None,
)

coreconfigitem(
    b'logtoprocess',
    b'commandexception',
    default=None,
)
coreconfigitem(
    b'logtoprocess',
    b'commandfinish',
    default=None,
)
coreconfigitem(
    b'logtoprocess',
    b'command',
    default=None,
)
coreconfigitem(
    b'logtoprocess',
    b'develwarn',
    default=None,
)
coreconfigitem(
    b'logtoprocess',
    b'uiblocked',
    default=None,
)
coreconfigitem(
    b'merge',
    b'checkunknown',
    default=b'abort',
)
coreconfigitem(
    b'merge',
    b'checkignored',
    default=b'abort',
)
coreconfigitem(
    b'experimental',
    b'merge.checkpathconflicts',
    default=False,
)
coreconfigitem(
    b'merge',
    b'followcopies',
    default=True,
)
coreconfigitem(
    b'merge',
    b'on-failure',
    default=b'continue',
)
coreconfigitem(
    b'merge',
    b'preferancestor',
    default=lambda: [b'*'],
    experimental=True,
)
coreconfigitem(
    b'merge',
    b'strict-capability-check',
    default=False,
)
coreconfigitem(
    b'merge-tools',
    b'.*',
    default=None,
    generic=True,
)
coreconfigitem(
    b'merge-tools',
    br'.*\.args$',
    default=b"$local $base $other",
    generic=True,
    priority=-1,
)
coreconfigitem(
    b'merge-tools',
    br'.*\.binary$',
    default=False,
    generic=True,
    priority=-1,
)
coreconfigitem(
    b'merge-tools',
    br'.*\.check$',
    default=list,
    generic=True,
    priority=-1,
)
coreconfigitem(
    b'merge-tools',
    br'.*\.checkchanged$',
    default=False,
    generic=True,
    priority=-1,
)
coreconfigitem(
    b'merge-tools',
    br'.*\.executable$',
    default=dynamicdefault,
    generic=True,
    priority=-1,
)
coreconfigitem(
    b'merge-tools',
    br'.*\.fixeol$',
    default=False,
    generic=True,
    priority=-1,
)
coreconfigitem(
    b'merge-tools',
    br'.*\.gui$',
    default=False,
    generic=True,
    priority=-1,
)
coreconfigitem(
    b'merge-tools',
    br'.*\.mergemarkers$',
    default=b'basic',
    generic=True,
    priority=-1,
)
coreconfigitem(
    b'merge-tools',
    br'.*\.mergemarkertemplate$',
    default=dynamicdefault,  # take from command-templates.mergemarker
    generic=True,
    priority=-1,
)
coreconfigitem(
    b'merge-tools',
    br'.*\.priority$',
    default=0,
    generic=True,
    priority=-1,
)
coreconfigitem(
    b'merge-tools',
    br'.*\.premerge$',
    default=dynamicdefault,
    generic=True,
    priority=-1,
)
coreconfigitem(
    b'merge-tools',
    br'.*\.symlink$',
    default=False,
    generic=True,
    priority=-1,
)
coreconfigitem(
    b'pager',
    b'attend-.*',
    default=dynamicdefault,
    generic=True,
)
coreconfigitem(
    b'pager',
    b'ignore',
    default=list,
)
coreconfigitem(
    b'pager',
    b'pager',
    default=dynamicdefault,
)
coreconfigitem(
    b'patch',
    b'eol',
    default=b'strict',
)
coreconfigitem(
    b'patch',
    b'fuzz',
    default=2,
)
coreconfigitem(
    b'paths',
    b'default',
    default=None,
)
coreconfigitem(
    b'paths',
    b'default-push',
    default=None,
)
coreconfigitem(
    b'paths',
    b'.*',
    default=None,
    generic=True,
)
coreconfigitem(
    b'phases',
    b'checksubrepos',
    default=b'follow',
)
coreconfigitem(
    b'phases',
    b'new-commit',
    default=b'draft',
)
coreconfigitem(
    b'phases',
    b'publish',
    default=True,
)
coreconfigitem(
    b'profiling',
    b'enabled',
    default=False,
)
coreconfigitem(
    b'profiling',
    b'format',
    default=b'text',
)
coreconfigitem(
    b'profiling',
    b'freq',
    default=1000,
)
coreconfigitem(
    b'profiling',
    b'limit',
    default=30,
)
coreconfigitem(
    b'profiling',
    b'nested',
    default=0,
)
coreconfigitem(
    b'profiling',
    b'output',
    default=None,
)
coreconfigitem(
    b'profiling',
    b'showmax',
    default=0.999,
)
coreconfigitem(
    b'profiling',
    b'showmin',
    default=dynamicdefault,
)
coreconfigitem(
    b'profiling',
    b'showtime',
    default=True,
)
coreconfigitem(
    b'profiling',
    b'sort',
    default=b'inlinetime',
)
coreconfigitem(
    b'profiling',
    b'statformat',
    default=b'hotpath',
)
coreconfigitem(
    b'profiling',
    b'time-track',
    default=dynamicdefault,
)
coreconfigitem(
    b'profiling',
    b'type',
    default=b'stat',
)
coreconfigitem(
    b'progress',
    b'assume-tty',
    default=False,
)
coreconfigitem(
    b'progress',
    b'changedelay',
    default=1,
)
coreconfigitem(
    b'progress',
    b'clear-complete',
    default=True,
)
coreconfigitem(
    b'progress',
    b'debug',
    default=False,
)
coreconfigitem(
    b'progress',
    b'delay',
    default=3,
)
coreconfigitem(
    b'progress',
    b'disable',
    default=False,
)
coreconfigitem(
    b'progress',
    b'estimateinterval',
    default=60.0,
)
coreconfigitem(
    b'progress',
    b'format',
    default=lambda: [b'topic', b'bar', b'number', b'estimate'],
)
coreconfigitem(
    b'progress',
    b'refresh',
    default=0.1,
)
coreconfigitem(
    b'progress',
    b'width',
    default=dynamicdefault,
)
coreconfigitem(
    b'pull',
    b'confirm',
    default=False,
)
coreconfigitem(
    b'push',
    b'pushvars.server',
    default=False,
)
coreconfigitem(
    b'rewrite',
    b'backup-bundle',
    default=True,
    alias=[(b'ui', b'history-editing-backup')],
)
coreconfigitem(
    b'rewrite',
    b'update-timestamp',
    default=False,
)
coreconfigitem(
    b'rewrite',
    b'empty-successor',
    default=b'skip',
    experimental=True,
)
coreconfigitem(
    b'storage',
    b'new-repo-backend',
    default=b'revlogv1',
    experimental=True,
)
coreconfigitem(
    b'storage',
    b'revlog.optimize-delta-parent-choice',
    default=True,
    alias=[(b'format', b'aggressivemergedeltas')],
)
# experimental as long as rust is experimental (or a C version is implemented)
coreconfigitem(
    b'storage',
    b'revlog.persistent-nodemap.mmap',
    default=True,
)
# experimental as long as format.use-persistent-nodemap is.
coreconfigitem(
    b'storage',
    b'revlog.persistent-nodemap.slow-path',
    default=b"abort",
)

coreconfigitem(
    b'storage',
    b'revlog.reuse-external-delta',
    default=True,
)
coreconfigitem(
    b'storage',
    b'revlog.reuse-external-delta-parent',
    default=None,
)
coreconfigitem(
    b'storage',
    b'revlog.zlib.level',
    default=None,
)
coreconfigitem(
    b'storage',
    b'revlog.zstd.level',
    default=None,
)
coreconfigitem(
    b'server',
    b'bookmarks-pushkey-compat',
    default=True,
)
coreconfigitem(
    b'server',
    b'bundle1',
    default=True,
)
coreconfigitem(
    b'server',
    b'bundle1gd',
    default=None,
)
coreconfigitem(
    b'server',
    b'bundle1.pull',
    default=None,
)
coreconfigitem(
    b'server',
    b'bundle1gd.pull',
    default=None,
)
coreconfigitem(
    b'server',
    b'bundle1.push',
    default=None,
)
coreconfigitem(
    b'server',
    b'bundle1gd.push',
    default=None,
)
coreconfigitem(
    b'server',
    b'bundle2.stream',
    default=True,
    alias=[(b'experimental', b'bundle2.stream')],
)
coreconfigitem(
    b'server',
    b'compressionengines',
    default=list,
)
coreconfigitem(
    b'server',
    b'concurrent-push-mode',
    default=b'check-related',
)
coreconfigitem(
    b'server',
    b'disablefullbundle',
    default=False,
)
coreconfigitem(
    b'server',
    b'maxhttpheaderlen',
    default=1024,
)
coreconfigitem(
    b'server',
    b'pullbundle',
    default=False,
)
coreconfigitem(
    b'server',
    b'preferuncompressed',
    default=False,
)
coreconfigitem(
    b'server',
    b'streamunbundle',
    default=False,
)
coreconfigitem(
    b'server',
    b'uncompressed',
    default=True,
)
coreconfigitem(
    b'server',
    b'uncompressedallowsecret',
    default=False,
)
coreconfigitem(
    b'server',
    b'view',
    default=b'served',
)
coreconfigitem(
    b'server',
    b'validate',
    default=False,
)
coreconfigitem(
    b'server',
    b'zliblevel',
    default=-1,
)
coreconfigitem(
    b'server',
    b'zstdlevel',
    default=3,
)
coreconfigitem(
    b'share',
    b'pool',
    default=None,
)
coreconfigitem(
    b'share',
    b'poolnaming',
    default=b'identity',
)
coreconfigitem(
    b'share',
    b'safe-mismatch.source-not-safe',
    default=b'abort',
)
coreconfigitem(
    b'share',
    b'safe-mismatch.source-safe',
    default=b'abort',
)
coreconfigitem(
    b'share',
    b'safe-mismatch.source-not-safe.warn',
    default=True,
)
coreconfigitem(
    b'share',
    b'safe-mismatch.source-safe.warn',
    default=True,
)
coreconfigitem(
    b'shelve',
    b'maxbackups',
    default=10,
)
coreconfigitem(
    b'smtp',
    b'host',
    default=None,
)
coreconfigitem(
    b'smtp',
    b'local_hostname',
    default=None,
)
coreconfigitem(
    b'smtp',
    b'password',
    default=None,
)
coreconfigitem(
    b'smtp',
    b'port',
    default=dynamicdefault,
)
coreconfigitem(
    b'smtp',
    b'tls',
    default=b'none',
)
coreconfigitem(
    b'smtp',
    b'username',
    default=None,
)
coreconfigitem(
    b'sparse',
    b'missingwarning',
    default=True,
    experimental=True,
)
coreconfigitem(
    b'subrepos',
    b'allowed',
    default=dynamicdefault,  # to make backporting simpler
)
coreconfigitem(
    b'subrepos',
    b'hg:allowed',
    default=dynamicdefault,
)
coreconfigitem(
    b'subrepos',
    b'git:allowed',
    default=dynamicdefault,
)
coreconfigitem(
    b'subrepos',
    b'svn:allowed',
    default=dynamicdefault,
)
coreconfigitem(
    b'templates',
    b'.*',
    default=None,
    generic=True,
)
coreconfigitem(
    b'templateconfig',
    b'.*',
    default=dynamicdefault,
    generic=True,
)
coreconfigitem(
    b'trusted',
    b'groups',
    default=list,
)
coreconfigitem(
    b'trusted',
    b'users',
    default=list,
)
coreconfigitem(
    b'ui',
    b'_usedassubrepo',
    default=False,
)
coreconfigitem(
    b'ui',
    b'allowemptycommit',
    default=False,
)
coreconfigitem(
    b'ui',
    b'archivemeta',
    default=True,
)
coreconfigitem(
    b'ui',
    b'askusername',
    default=False,
)
coreconfigitem(
    b'ui',
    b'available-memory',
    default=None,
)

coreconfigitem(
    b'ui',
    b'clonebundlefallback',
    default=False,
)
coreconfigitem(
    b'ui',
    b'clonebundleprefers',
    default=list,
)
coreconfigitem(
    b'ui',
    b'clonebundles',
    default=True,
)
coreconfigitem(
    b'ui',
    b'color',
    default=b'auto',
)
coreconfigitem(
    b'ui',
    b'commitsubrepos',
    default=False,
)
coreconfigitem(
    b'ui',
    b'debug',
    default=False,
)
coreconfigitem(
    b'ui',
    b'debugger',
    default=None,
)
coreconfigitem(
    b'ui',
    b'editor',
    default=dynamicdefault,
)
coreconfigitem(
    b'ui',
    b'detailed-exit-code',
    default=False,
    experimental=True,
)
coreconfigitem(
    b'ui',
    b'fallbackencoding',
    default=None,
)
coreconfigitem(
    b'ui',
    b'forcecwd',
    default=None,
)
coreconfigitem(
    b'ui',
    b'forcemerge',
    default=None,
)
coreconfigitem(
    b'ui',
    b'formatdebug',
    default=False,
)
coreconfigitem(
    b'ui',
    b'formatjson',
    default=False,
)
coreconfigitem(
    b'ui',
    b'formatted',
    default=None,
)
coreconfigitem(
    b'ui',
    b'interactive',
    default=None,
)
coreconfigitem(
    b'ui',
    b'interface',
    default=None,
)
coreconfigitem(
    b'ui',
    b'interface.chunkselector',
    default=None,
)
coreconfigitem(
    b'ui',
    b'large-file-limit',
    default=10000000,
)
coreconfigitem(
    b'ui',
    b'logblockedtimes',
    default=False,
)
coreconfigitem(
    b'ui',
    b'merge',
    default=None,
)
coreconfigitem(
    b'ui',
    b'mergemarkers',
    default=b'basic',
)
coreconfigitem(
    b'ui',
    b'message-output',
    default=b'stdio',
)
coreconfigitem(
    b'ui',
    b'nontty',
    default=False,
)
coreconfigitem(
    b'ui',
    b'origbackuppath',
    default=None,
)
coreconfigitem(
    b'ui',
    b'paginate',
    default=True,
)
coreconfigitem(
    b'ui',
    b'patch',
    default=None,
)
coreconfigitem(
    b'ui',
    b'portablefilenames',
    default=b'warn',
)
coreconfigitem(
    b'ui',
    b'promptecho',
    default=False,
)
coreconfigitem(
    b'ui',
    b'quiet',
    default=False,
)
coreconfigitem(
    b'ui',
    b'quietbookmarkmove',
    default=False,
)
coreconfigitem(
    b'ui',
    b'relative-paths',
    default=b'legacy',
)
coreconfigitem(
    b'ui',
    b'remotecmd',
    default=b'hg',
)
coreconfigitem(
    b'ui',
    b'report_untrusted',
    default=True,
)
coreconfigitem(
    b'ui',
    b'rollback',
    default=True,
)
coreconfigitem(
    b'ui',
    b'signal-safe-lock',
    default=True,
)
coreconfigitem(
    b'ui',
    b'slash',
    default=False,
)
coreconfigitem(
    b'ui',
    b'ssh',
    default=b'ssh',
)
coreconfigitem(
    b'ui',
    b'ssherrorhint',
    default=None,
)
coreconfigitem(
    b'ui',
    b'statuscopies',
    default=False,
)
coreconfigitem(
    b'ui',
    b'strict',
    default=False,
)
coreconfigitem(
    b'ui',
    b'style',
    default=b'',
)
coreconfigitem(
    b'ui',
    b'supportcontact',
    default=None,
)
coreconfigitem(
    b'ui',
    b'textwidth',
    default=78,
)
coreconfigitem(
    b'ui',
    b'timeout',
    default=b'600',
)
coreconfigitem(
    b'ui',
    b'timeout.warn',
    default=0,
)
coreconfigitem(
    b'ui',
    b'timestamp-output',
    default=False,
)
coreconfigitem(
    b'ui',
    b'traceback',
    default=False,
)
coreconfigitem(
    b'ui',
    b'tweakdefaults',
    default=False,
)
coreconfigitem(b'ui', b'username', alias=[(b'ui', b'user')])
coreconfigitem(
    b'ui',
    b'verbose',
    default=False,
)
coreconfigitem(
    b'verify',
    b'skipflags',
    default=None,
)
coreconfigitem(
    b'web',
    b'allowbz2',
    default=False,
)
coreconfigitem(
    b'web',
    b'allowgz',
    default=False,
)
coreconfigitem(
    b'web',
    b'allow-pull',
    alias=[(b'web', b'allowpull')],
    default=True,
)
coreconfigitem(
    b'web',
    b'allow-push',
    alias=[(b'web', b'allow_push')],
    default=list,
)
coreconfigitem(
    b'web',
    b'allowzip',
    default=False,
)
coreconfigitem(
    b'web',
    b'archivesubrepos',
    default=False,
)
coreconfigitem(
    b'web',
    b'cache',
    default=True,
)
coreconfigitem(
    b'web',
    b'comparisoncontext',
    default=5,
)
coreconfigitem(
    b'web',
    b'contact',
    default=None,
)
coreconfigitem(
    b'web',
    b'deny_push',
    default=list,
)
coreconfigitem(
    b'web',
    b'guessmime',
    default=False,
)
coreconfigitem(
    b'web',
    b'hidden',
    default=False,
)
coreconfigitem(
    b'web',
    b'labels',
    default=list,
)
coreconfigitem(
    b'web',
    b'logoimg',
    default=b'hglogo.png',
)
coreconfigitem(
    b'web',
    b'logourl',
    default=b'https://mercurial-scm.org/',
)
coreconfigitem(
    b'web',
    b'accesslog',
    default=b'-',
)
coreconfigitem(
    b'web',
    b'address',
    default=b'',
)
coreconfigitem(
    b'web',
    b'allow-archive',
    alias=[(b'web', b'allow_archive')],
    default=list,
)
coreconfigitem(
    b'web',
    b'allow_read',
    default=list,
)
coreconfigitem(
    b'web',
    b'baseurl',
    default=None,
)
coreconfigitem(
    b'web',
    b'cacerts',
    default=None,
)
coreconfigitem(
    b'web',
    b'certificate',
    default=None,
)
coreconfigitem(
    b'web',
    b'collapse',
    default=False,
)
coreconfigitem(
    b'web',
    b'csp',
    default=None,
)
coreconfigitem(
    b'web',
    b'deny_read',
    default=list,
)
coreconfigitem(
    b'web',
    b'descend',
    default=True,
)
coreconfigitem(
    b'web',
    b'description',
    default=b"",
)
coreconfigitem(
    b'web',
    b'encoding',
    default=lambda: encoding.encoding,
)
coreconfigitem(
    b'web',
    b'errorlog',
    default=b'-',
)
coreconfigitem(
    b'web',
    b'ipv6',
    default=False,
)
coreconfigitem(
    b'web',
    b'maxchanges',
    default=10,
)
coreconfigitem(
    b'web',
    b'maxfiles',
    default=10,
)
coreconfigitem(
    b'web',
    b'maxshortchanges',
    default=60,
)
coreconfigitem(
    b'web',
    b'motd',
    default=b'',
)
coreconfigitem(
    b'web',
    b'name',
    default=dynamicdefault,
)
coreconfigitem(
    b'web',
    b'port',
    default=8000,
)
coreconfigitem(
    b'web',
    b'prefix',
    default=b'',
)
coreconfigitem(
    b'web',
    b'push_ssl',
    default=True,
)
coreconfigitem(
    b'web',
    b'refreshinterval',
    default=20,
)
coreconfigitem(
    b'web',
    b'server-header',
    default=None,
)
coreconfigitem(
    b'web',
    b'static',
    default=None,
)
coreconfigitem(
    b'web',
    b'staticurl',
    default=None,
)
coreconfigitem(
    b'web',
    b'stripes',
    default=1,
)
coreconfigitem(
    b'web',
    b'style',
    default=b'paper',
)
coreconfigitem(
    b'web',
    b'templates',
    default=None,
)
coreconfigitem(
    b'web',
    b'view',
    default=b'served',
    experimental=True,
)
coreconfigitem(
    b'worker',
    b'backgroundclose',
    default=dynamicdefault,
)
# Windows defaults to a limit of 512 open files. A buffer of 128
# should give us enough headway.
coreconfigitem(
    b'worker',
    b'backgroundclosemaxqueue',
    default=384,
)
coreconfigitem(
    b'worker',
    b'backgroundcloseminfilecount',
    default=2048,
)
coreconfigitem(
    b'worker',
    b'backgroundclosethreadcount',
    default=4,
)
coreconfigitem(
    b'worker',
    b'enabled',
    default=True,
)
coreconfigitem(
    b'worker',
    b'numcpus',
    default=None,
)

# Rebase related configuration moved to core because other extension are doing
# strange things. For example, shelve import the extensions to reuse some bit
# without formally loading it.
coreconfigitem(
    b'commands',
    b'rebase.requiredest',
    default=False,
)
coreconfigitem(
    b'experimental',
    b'rebaseskipobsolete',
    default=True,
)
coreconfigitem(
    b'rebase',
    b'singletransaction',
    default=False,
)
coreconfigitem(
    b'rebase',
    b'experimental.inmemory',
    default=False,
)