annotate mercurial/configitems.py @ 50316:87f0155d68aa stable

revlog: improve the robustness of the splitting process

The previous "in-place" splitting, preserving the splitting on transaction
failure had a couple of issue in case of transaction rollback:
- a race windows that could still lead to a crash and data loss
- it corrupted the `fncache`.

So instead, we use a new approach that we summarized as "we do a backup of the
inline revlog pre-split, and we restore this in case of failure".
To make readers live easier, we don't overwrite the inline index file until
transaction finalization. (once the transaction get into its finalization phase,
it is not expected to rollback, unless some crash happens).

To do so, we write the index of the split index in a temporary file that we use
until transaction finalization. We also keep a backup of the initial inline file
to be able to rollback the split if needed.

As a result, transaction rollback cancel the split and no longer corrupt
fncache. We also no longer have a small inconsistency windows where the
transaction could be unrecoverable.

# 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.


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:
    """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'debug',
    b'revlog.debug-delta',
    default=False,
)
# display extra information about the bundling process
coreconfigitem(
    b'debug',
    b'bundling-stats',
    default=False,
)
# display extra information about the unbundling process
coreconfigitem(
    b'debug',
    b'unbundling-stats',
    default=False,
)
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,
)
# possible values:
# - auto (the default)
# - force-append
# - force-new
coreconfigitem(
    b'devel',
    b'dirstate.v2.data_update_mode',
    default="auto",
)
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,
)
# Makes the status algorithm wait for the existence of this file
# (or until a timeout of `devel.sync.status.pre-dirstate-write-file-timeout`
# seconds) before taking the lock and writing the dirstate.
# Status signals that it's ready to wait by creating a file
# with the same name + `.waiting`.
# Useful when testing race conditions.
coreconfigitem(
    b'devel',
    b'sync.status.pre-dirstate-write-file',
    default=None,
)
coreconfigitem(
    b'devel',
    b'sync.status.pre-dirstate-write-file-timeout',
    default=2,
)
coreconfigitem(
    b'devel',
    b'sync.dirstate.post-docket-read-file',
    default=None,
)
coreconfigitem(
    b'devel',
    b'sync.dirstate.post-docket-read-file-timeout',
    default=2,
)
coreconfigitem(
    b'devel',
    b'sync.dirstate.pre-read-file',
    default=None,
)
coreconfigitem(
    b'devel',
    b'sync.dirstate.pre-read-file-timeout',
    default=2,
)
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 devel.debug.abort-update is True, then any merge with the working copy,
# e.g. [hg update], will be aborted after figuring out what needs to be done,
# but before spawning the parallel worker
coreconfigitem(
    b'devel',
    b'debug.abort-update',
    default=False,
)
# 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,
)

# might remove rank configuration once the computation has no impact
coreconfigitem(
    b'experimental',
    b'changelog-v2.compute-rank',
    default=True,
)
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'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'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'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.
# * introduce a proper solution to reduce the number of filelog related files.
# * use caching for reading sidedata (similar to what we do for data).
# * no longer set offset=0 if sidedata_size=0 (simplify cutoff computation).
# * 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)
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'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'web.full-garbage-collection-rate',
    default=1,  # still forcing a full collection on each request
)
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'extensions',
    b'[^:]*:required',
    default=False,
    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'use-dirstate-v2',
    default=False,
    experimental=True,
    alias=[(b'format', b'exp-rc-dirstate-v2')],
)
coreconfigitem(
    b'format',
    b'use-dirstate-v2.automatic-upgrade-of-mismatching-repositories',
    default=False,
    experimental=True,
)
coreconfigitem(
    b'format',
    b'use-dirstate-v2.automatic-upgrade-of-mismatching-repositories:quiet',
    default=False,
    experimental=True,
)
coreconfigitem(
    b'format',
    b'use-dirstate-tracked-hint',
    default=False,
    experimental=True,
)
coreconfigitem(
    b'format',
    b'use-dirstate-tracked-hint.version',
    default=1,
    experimental=True,
)
coreconfigitem(
    b'format',
    b'use-dirstate-tracked-hint.automatic-upgrade-of-mismatching-repositories',
    default=False,
    experimental=True,
)
coreconfigitem(
    b'format',
    b'use-dirstate-tracked-hint.automatic-upgrade-of-mismatching-repositories:quiet',
    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 revlogv2 (but for the reduction of the number of files)
# * Actually computing the rank of changesets
# * Improvement to investigate
#   - storing .hgtags fnode
#   - 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=True,
)
coreconfigitem(
    b'format',
    b'use-share-safe.automatic-upgrade-of-mismatching-repositories',
    default=False,
    experimental=True,
)
coreconfigitem(
    b'format',
    b'use-share-safe.automatic-upgrade-of-mismatching-repositories:quiet',
    default=False,
    experimental=True,
)

# Moving this on by default means we are confident about the scaling of phases.
# This is not garanteed to be the case at the time this message is written.
coreconfigitem(
    b'format',
    b'use-internal-phase',
    default=False,
    experimental=True,
)
# The interaction between the archived phase and obsolescence markers needs to
# be sorted out before wider usage of this are to be considered.
#
# At the time this message is written, behavior when archiving obsolete
# changeset differ significantly from stripping. As part of stripping, we also
# remove the obsolescence marker associated to the stripped changesets,
# revealing the precedecessors changesets when applicable. When archiving, we
# don't touch the obsolescence markers, keeping everything hidden. This can
# result in quite confusing situation for people combining exchanging draft
# with the archived phases. As some markers needed by others may be skipped
# during exchange.
coreconfigitem(
    b'format',
    b'exp-archived-phase',
    default=False,
    experimental=True,
)
coreconfigitem(
    b'shelve',
    b'store',
    default=b'internal',
    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',
    b'disable-partial-tools',
    default=False,
    experimental=True,
)
coreconfigitem(
    b'partial-merge-tools',
    b'.*',
    default=None,
    generic=True,
    experimental=True,
)
coreconfigitem(
    b'partial-merge-tools',
    br'.*\.patterns',
    default=dynamicdefault,
    generic=True,
    priority=-1,
    experimental=True,
)
coreconfigitem(
    b'partial-merge-tools',
    br'.*\.executable$',
    default=dynamicdefault,
    generic=True,
    priority=-1,
    experimental=True,
)
coreconfigitem(
    b'partial-merge-tools',
    br'.*\.order',
    default=0,
    generic=True,
    priority=-1,
    experimental=True,
)
coreconfigitem(
    b'partial-merge-tools',
    br'.*\.args',
    default=b"$local $base $other",
    generic=True,
    priority=-1,
    experimental=True,
)
coreconfigitem(
    b'partial-merge-tools',
    br'.*\.disable',
    default=False,
    generic=True,
    priority=-1,
    experimental=True,
)
coreconfigitem(
    b'merge-tools',
    b'.*',
    default=None,
    generic=True,
)
coreconfigitem(
    b'merge-tools',
    br'.*\.args$',
    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$',
    default=dynamicdefault,
    generic=True,
    priority=-1,
)
coreconfigitem(
    b'merge-tools',
    br'.*\.regappend$',
    default=b"",
    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'paths',
    b'.*:bookmarks.mode',
    default='default',
    generic=True,
)
coreconfigitem(
    b'paths',
    b'.*:multi-urls',
    default=False,
    generic=True,
)
coreconfigitem(
    b'paths',
    b'.*:pushrev',
    default=None,
    generic=True,
)
coreconfigitem(
    b'paths',
    b'.*:pushurl',
    default=None,
    generic=True,
)
coreconfigitem(
    b'paths',
    b'.*:pulled-delta-reuse-policy',
    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,
)
# experimental as long as format.use-dirstate-v2 is.
coreconfigitem(
    b'storage',
    b'dirstate-v2.slow-path',
    default=b"abort",
    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')],
)
coreconfigitem(
    b'storage',
    b'revlog.delta-parent-search.candidate-group-chunk-size',
    default=20,
)
coreconfigitem(
    b'storage',
    b'revlog.issue6528.fix-incoming',
    default=True,
)
# 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,
)
# This option is True unless `format.generaldelta` is set.
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=True,
)
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'share',
    b'safe-mismatch.source-not-safe:verbose-upgrade',
    default=True,
)
coreconfigitem(
    b'share',
    b'safe-mismatch.source-safe:verbose-upgrade',
    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=10 * (2 ** 20),
)
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=0,
)
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,
)

# This setting controls creation of a rebase_source extra field
# during rebase. When False, no such field is created. This is
# useful eg for incrementally converting changesets and then
# rebasing them onto an existing repo.
# WARNING: this is an advanced setting reserved for people who know
# exactly what they are doing. Misuse of this setting can easily
# result in obsmarker cycles and a vivid headache.
coreconfigitem(
    b'rebase',
    b'store-source',
    default=True,
    experimental=True,
)