view mercurial/configitems.py @ 36426:23d12524a202

http: drop custom http client logic Eight and a half years ago, as my starter bug on code.google.com, I investigated a mysterious "broken pipe" error from seemingly random clients[0]. That investigation revealed a tragic story: the Python standard library's httplib was (and remains) barely functional. During large POSTs, if a server responds early with an error (even a permission denied error!) the client only notices that the server closed the connection and everything breaks. Such server behavior is implicitly legal under RFC 2616 (the latest HTTP RFC as of when I was last working on this), and my understanding is that later RFCs have made it explicitly legal to respond early with any status code outside the 2xx range. I embarked, probably foolishly, on a journey to write a new http library with better overall behavior. The http library appears to work well in most cases, but it can get confused in the presence of proxies, and it depends on select(2) which limits its utility if a lot of file descriptors are open. I haven't touched the http library in almost two years, and in the interim the Python community has discovered a better way[1] of writing network code. In theory some day urllib3 will have its own home-grown http library built on h11[2], or we could do that. Either way, it's time to declare our current confusingly-named "http2" client logic and move on. I do hope to revisit this some day: it's still garbage that we can't even respond with a 401 or 403 without reading the entire POST body from the client, but the goalposts on writing a new http client library have moved substantially. We're almost certainly better off just switching to requests and eventually picking up their http fixes than trying to live with something that realistically only we'll ever use. Another approach would be to write an adapter so that Mercurial can use pycurl if it's installed. Neither of those approaches seem like they should be investigated prior to a release of Mercurial that works on Python 3: that's where the mindshare is going to be for any improvements to the state of the http client art. 0: http://web.archive.org/web/20130501031801/http://code.google.com/p/support/issues/detail?id=2716 1: http://sans-io.readthedocs.io/ 2: https://github.com/njsmith/h11 Differential Revision: https://phab.mercurial-scm.org/D2444
author Augie Fackler <augie@google.com>
date Sun, 25 Feb 2018 23:51:32 -0500
parents 0147a4730420
children c6a61298ac32
line wrap: on
line source

# configitems.py - centralized declaration of configuration option
#
#  Copyright 2017 Pierre-Yves David <pierre-yves.david@octobus.net>
#
# 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 = "extension '%s' overwrite config item '%s.%s'"
            msg %= (extname, section, key)
            ui.develwarn(msg, config='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):
        self.section = section
        self.name = name
        self.default = default
        self.alias = list(alias)
        self.generic = generic
        self.priority = priority
        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 = "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)

coreconfigitem('alias', '.*',
    default=None,
    generic=True,
)
coreconfigitem('annotate', 'nodates',
    default=False,
)
coreconfigitem('annotate', 'showfunc',
    default=False,
)
coreconfigitem('annotate', 'unified',
    default=None,
)
coreconfigitem('annotate', 'git',
    default=False,
)
coreconfigitem('annotate', 'ignorews',
    default=False,
)
coreconfigitem('annotate', 'ignorewsamount',
    default=False,
)
coreconfigitem('annotate', 'ignoreblanklines',
    default=False,
)
coreconfigitem('annotate', 'ignorewseol',
    default=False,
)
coreconfigitem('annotate', 'nobinary',
    default=False,
)
coreconfigitem('annotate', 'noprefix',
    default=False,
)
coreconfigitem('auth', 'cookiefile',
    default=None,
)
# bookmarks.pushing: internal hack for discovery
coreconfigitem('bookmarks', 'pushing',
    default=list,
)
# bundle.mainreporoot: internal hack for bundlerepo
coreconfigitem('bundle', 'mainreporoot',
    default='',
)
# bundle.reorder: experimental config
coreconfigitem('bundle', 'reorder',
    default='auto',
)
coreconfigitem('censor', 'policy',
    default='abort',
)
coreconfigitem('chgserver', 'idletimeout',
    default=3600,
)
coreconfigitem('chgserver', 'skiphash',
    default=False,
)
coreconfigitem('cmdserver', 'log',
    default=None,
)
coreconfigitem('color', '.*',
    default=None,
    generic=True,
)
coreconfigitem('color', 'mode',
    default='auto',
)
coreconfigitem('color', 'pagermode',
    default=dynamicdefault,
)
coreconfigitem('commands', 'show.aliasprefix',
    default=list,
)
coreconfigitem('commands', 'status.relative',
    default=False,
)
coreconfigitem('commands', 'status.skipstates',
    default=[],
)
coreconfigitem('commands', 'status.verbose',
    default=False,
)
coreconfigitem('commands', 'update.check',
    default=None,
    # Deprecated, remove after 4.4 release
    alias=[('experimental', 'updatecheck')]
)
coreconfigitem('commands', 'update.requiredest',
    default=False,
)
coreconfigitem('committemplate', '.*',
    default=None,
    generic=True,
)
coreconfigitem('convert', 'cvsps.cache',
    default=True,
)
coreconfigitem('convert', 'cvsps.fuzz',
    default=60,
)
coreconfigitem('convert', 'cvsps.logencoding',
    default=None,
)
coreconfigitem('convert', 'cvsps.mergefrom',
    default=None,
)
coreconfigitem('convert', 'cvsps.mergeto',
    default=None,
)
coreconfigitem('convert', 'git.committeractions',
    default=lambda: ['messagedifferent'],
)
coreconfigitem('convert', 'git.extrakeys',
    default=list,
)
coreconfigitem('convert', 'git.findcopiesharder',
    default=False,
)
coreconfigitem('convert', 'git.remoteprefix',
    default='remote',
)
coreconfigitem('convert', 'git.renamelimit',
    default=400,
)
coreconfigitem('convert', 'git.saverev',
    default=True,
)
coreconfigitem('convert', 'git.similarity',
    default=50,
)
coreconfigitem('convert', 'git.skipsubmodules',
    default=False,
)
coreconfigitem('convert', 'hg.clonebranches',
    default=False,
)
coreconfigitem('convert', 'hg.ignoreerrors',
    default=False,
)
coreconfigitem('convert', 'hg.revs',
    default=None,
)
coreconfigitem('convert', 'hg.saverev',
    default=False,
)
coreconfigitem('convert', 'hg.sourcename',
    default=None,
)
coreconfigitem('convert', 'hg.startrev',
    default=None,
)
coreconfigitem('convert', 'hg.tagsbranch',
    default='default',
)
coreconfigitem('convert', 'hg.usebranchnames',
    default=True,
)
coreconfigitem('convert', 'ignoreancestorcheck',
    default=False,
)
coreconfigitem('convert', 'localtimezone',
    default=False,
)
coreconfigitem('convert', 'p4.encoding',
    default=dynamicdefault,
)
coreconfigitem('convert', 'p4.startrev',
    default=0,
)
coreconfigitem('convert', 'skiptags',
    default=False,
)
coreconfigitem('convert', 'svn.debugsvnlog',
    default=True,
)
coreconfigitem('convert', 'svn.trunk',
    default=None,
)
coreconfigitem('convert', 'svn.tags',
    default=None,
)
coreconfigitem('convert', 'svn.branches',
    default=None,
)
coreconfigitem('convert', 'svn.startrev',
    default=0,
)
coreconfigitem('debug', 'dirstate.delaywrite',
    default=0,
)
coreconfigitem('defaults', '.*',
    default=None,
    generic=True,
)
coreconfigitem('devel', 'all-warnings',
    default=False,
)
coreconfigitem('devel', 'bundle2.debug',
    default=False,
)
coreconfigitem('devel', 'cache-vfs',
    default=None,
)
coreconfigitem('devel', 'check-locks',
    default=False,
)
coreconfigitem('devel', 'check-relroot',
    default=False,
)
coreconfigitem('devel', 'default-date',
    default=None,
)
coreconfigitem('devel', 'deprec-warn',
    default=False,
)
coreconfigitem('devel', 'disableloaddefaultcerts',
    default=False,
)
coreconfigitem('devel', 'warn-empty-changegroup',
    default=False,
)
coreconfigitem('devel', 'legacy.exchange',
    default=list,
)
coreconfigitem('devel', 'servercafile',
    default='',
)
coreconfigitem('devel', 'serverexactprotocol',
    default='',
)
coreconfigitem('devel', 'serverrequirecert',
    default=False,
)
coreconfigitem('devel', 'strip-obsmarkers',
    default=True,
)
coreconfigitem('devel', 'warn-config',
    default=None,
)
coreconfigitem('devel', 'warn-config-default',
    default=None,
)
coreconfigitem('devel', 'user.obsmarker',
    default=None,
)
coreconfigitem('devel', 'warn-config-unknown',
    default=None,
)
coreconfigitem('devel', 'debug.peer-request',
    default=False,
)
coreconfigitem('diff', 'nodates',
    default=False,
)
coreconfigitem('diff', 'showfunc',
    default=False,
)
coreconfigitem('diff', 'unified',
    default=None,
)
coreconfigitem('diff', 'git',
    default=False,
)
coreconfigitem('diff', 'ignorews',
    default=False,
)
coreconfigitem('diff', 'ignorewsamount',
    default=False,
)
coreconfigitem('diff', 'ignoreblanklines',
    default=False,
)
coreconfigitem('diff', 'ignorewseol',
    default=False,
)
coreconfigitem('diff', 'nobinary',
    default=False,
)
coreconfigitem('diff', 'noprefix',
    default=False,
)
coreconfigitem('email', 'bcc',
    default=None,
)
coreconfigitem('email', 'cc',
    default=None,
)
coreconfigitem('email', 'charsets',
    default=list,
)
coreconfigitem('email', 'from',
    default=None,
)
coreconfigitem('email', 'method',
    default='smtp',
)
coreconfigitem('email', 'reply-to',
    default=None,
)
coreconfigitem('email', 'to',
    default=None,
)
coreconfigitem('experimental', 'archivemetatemplate',
    default=dynamicdefault,
)
coreconfigitem('experimental', 'bundle-phases',
    default=False,
)
coreconfigitem('experimental', 'bundle2-advertise',
    default=True,
)
coreconfigitem('experimental', 'bundle2-output-capture',
    default=False,
)
coreconfigitem('experimental', 'bundle2.pushback',
    default=False,
)
coreconfigitem('experimental', 'bundle2.stream',
    default=False,
)
coreconfigitem('experimental', 'bundle2lazylocking',
    default=False,
)
coreconfigitem('experimental', 'bundlecomplevel',
    default=None,
)
coreconfigitem('experimental', 'changegroup3',
    default=False,
)
coreconfigitem('experimental', 'clientcompressionengines',
    default=list,
)
coreconfigitem('experimental', 'copytrace',
    default='on',
)
coreconfigitem('experimental', 'copytrace.movecandidateslimit',
    default=100,
)
coreconfigitem('experimental', 'copytrace.sourcecommitlimit',
    default=100,
)
coreconfigitem('experimental', 'crecordtest',
    default=None,
)
coreconfigitem('experimental', 'directaccess',
    default=False,
)
coreconfigitem('experimental', 'directaccess.revnums',
    default=False,
)
coreconfigitem('experimental', 'editortmpinhg',
    default=False,
)
coreconfigitem('experimental', 'evolution',
    default=list,
)
coreconfigitem('experimental', 'evolution.allowdivergence',
    default=False,
    alias=[('experimental', 'allowdivergence')]
)
coreconfigitem('experimental', 'evolution.allowunstable',
    default=None,
)
coreconfigitem('experimental', 'evolution.createmarkers',
    default=None,
)
coreconfigitem('experimental', 'evolution.effect-flags',
    default=True,
    alias=[('experimental', 'effect-flags')]
)
coreconfigitem('experimental', 'evolution.exchange',
    default=None,
)
coreconfigitem('experimental', 'evolution.bundle-obsmarker',
    default=False,
)
coreconfigitem('experimental', 'evolution.report-instabilities',
    default=True,
)
coreconfigitem('experimental', 'evolution.track-operation',
    default=True,
)
coreconfigitem('experimental', 'worddiff',
    default=False,
)
coreconfigitem('experimental', 'maxdeltachainspan',
    default=-1,
)
coreconfigitem('experimental', 'mmapindexthreshold',
    default=None,
)
coreconfigitem('experimental', 'nonnormalparanoidcheck',
    default=False,
)
coreconfigitem('experimental', 'exportableenviron',
    default=list,
)
coreconfigitem('experimental', 'extendedheader.index',
    default=None,
)
coreconfigitem('experimental', 'extendedheader.similarity',
    default=False,
)
coreconfigitem('experimental', 'format.compression',
    default='zlib',
)
coreconfigitem('experimental', 'graphshorten',
    default=False,
)
coreconfigitem('experimental', 'graphstyle.parent',
    default=dynamicdefault,
)
coreconfigitem('experimental', 'graphstyle.missing',
    default=dynamicdefault,
)
coreconfigitem('experimental', 'graphstyle.grandparent',
    default=dynamicdefault,
)
coreconfigitem('experimental', 'hook-track-tags',
    default=False,
)
coreconfigitem('experimental', 'httppostargs',
    default=False,
)
coreconfigitem('experimental', 'mergedriver',
    default=None,
)
coreconfigitem('experimental', 'obsmarkers-exchange-debug',
    default=False,
)
coreconfigitem('experimental', 'remotenames',
    default=False,
)
coreconfigitem('experimental', 'revlogv2',
    default=None,
)
coreconfigitem('experimental', 'single-head-per-branch',
    default=False,
)
coreconfigitem('experimental', 'sshserver.support-v2',
    default=False,
)
coreconfigitem('experimental', 'spacemovesdown',
    default=False,
)
coreconfigitem('experimental', 'sparse-read',
    default=False,
)
coreconfigitem('experimental', 'sparse-read.density-threshold',
    default=0.25,
)
coreconfigitem('experimental', 'sparse-read.min-gap-size',
    default='256K',
)
coreconfigitem('experimental', 'treemanifest',
    default=False,
)
coreconfigitem('experimental', 'update.atomic-file',
    default=False,
)
coreconfigitem('experimental', 'sshpeer.advertise-v2',
    default=False,
)
coreconfigitem('extensions', '.*',
    default=None,
    generic=True,
)
coreconfigitem('extdata', '.*',
    default=None,
    generic=True,
)
coreconfigitem('format', 'aggressivemergedeltas',
    default=False,
)
coreconfigitem('format', 'chunkcachesize',
    default=None,
)
coreconfigitem('format', 'dotencode',
    default=True,
)
coreconfigitem('format', 'generaldelta',
    default=False,
)
coreconfigitem('format', 'manifestcachesize',
    default=None,
)
coreconfigitem('format', 'maxchainlen',
    default=None,
)
coreconfigitem('format', 'obsstore-version',
    default=None,
)
coreconfigitem('format', 'usefncache',
    default=True,
)
coreconfigitem('format', 'usegeneraldelta',
    default=True,
)
coreconfigitem('format', 'usestore',
    default=True,
)
coreconfigitem('fsmonitor', 'warn_when_unused',
    default=True,
)
coreconfigitem('fsmonitor', 'warn_update_file_count',
    default=50000,
)
coreconfigitem('hooks', '.*',
    default=dynamicdefault,
    generic=True,
)
coreconfigitem('hgweb-paths', '.*',
    default=list,
    generic=True,
)
coreconfigitem('hostfingerprints', '.*',
    default=list,
    generic=True,
)
coreconfigitem('hostsecurity', 'ciphers',
    default=None,
)
coreconfigitem('hostsecurity', 'disabletls10warning',
    default=False,
)
coreconfigitem('hostsecurity', 'minimumprotocol',
    default=dynamicdefault,
)
coreconfigitem('hostsecurity', '.*:minimumprotocol$',
    default=dynamicdefault,
    generic=True,
)
coreconfigitem('hostsecurity', '.*:ciphers$',
    default=dynamicdefault,
    generic=True,
)
coreconfigitem('hostsecurity', '.*:fingerprints$',
    default=list,
    generic=True,
)
coreconfigitem('hostsecurity', '.*:verifycertsfile$',
    default=None,
    generic=True,
)

coreconfigitem('http_proxy', 'always',
    default=False,
)
coreconfigitem('http_proxy', 'host',
    default=None,
)
coreconfigitem('http_proxy', 'no',
    default=list,
)
coreconfigitem('http_proxy', 'passwd',
    default=None,
)
coreconfigitem('http_proxy', 'user',
    default=None,
)
coreconfigitem('logtoprocess', 'commandexception',
    default=None,
)
coreconfigitem('logtoprocess', 'commandfinish',
    default=None,
)
coreconfigitem('logtoprocess', 'command',
    default=None,
)
coreconfigitem('logtoprocess', 'develwarn',
    default=None,
)
coreconfigitem('logtoprocess', 'uiblocked',
    default=None,
)
coreconfigitem('merge', 'checkunknown',
    default='abort',
)
coreconfigitem('merge', 'checkignored',
    default='abort',
)
coreconfigitem('experimental', 'merge.checkpathconflicts',
    default=False,
)
coreconfigitem('merge', 'followcopies',
    default=True,
)
coreconfigitem('merge', 'on-failure',
    default='continue',
)
coreconfigitem('merge', 'preferancestor',
        default=lambda: ['*'],
)
coreconfigitem('merge-tools', '.*',
    default=None,
    generic=True,
)
coreconfigitem('merge-tools', br'.*\.args$',
    default="$local $base $other",
    generic=True,
    priority=-1,
)
coreconfigitem('merge-tools', br'.*\.binary$',
    default=False,
    generic=True,
    priority=-1,
)
coreconfigitem('merge-tools', br'.*\.check$',
    default=list,
    generic=True,
    priority=-1,
)
coreconfigitem('merge-tools', br'.*\.checkchanged$',
    default=False,
    generic=True,
    priority=-1,
)
coreconfigitem('merge-tools', br'.*\.executable$',
    default=dynamicdefault,
    generic=True,
    priority=-1,
)
coreconfigitem('merge-tools', br'.*\.fixeol$',
    default=False,
    generic=True,
    priority=-1,
)
coreconfigitem('merge-tools', br'.*\.gui$',
    default=False,
    generic=True,
    priority=-1,
)
coreconfigitem('merge-tools', br'.*\.mergemarkers$',
    default='basic',
    generic=True,
    priority=-1,
)
coreconfigitem('merge-tools', br'.*\.mergemarkertemplate$',
    default=dynamicdefault,  # take from ui.mergemarkertemplate
    generic=True,
    priority=-1,
)
coreconfigitem('merge-tools', br'.*\.priority$',
    default=0,
    generic=True,
    priority=-1,
)
coreconfigitem('merge-tools', br'.*\.premerge$',
    default=dynamicdefault,
    generic=True,
    priority=-1,
)
coreconfigitem('merge-tools', br'.*\.symlink$',
    default=False,
    generic=True,
    priority=-1,
)
coreconfigitem('pager', 'attend-.*',
    default=dynamicdefault,
    generic=True,
)
coreconfigitem('pager', 'ignore',
    default=list,
)
coreconfigitem('pager', 'pager',
    default=dynamicdefault,
)
coreconfigitem('patch', 'eol',
    default='strict',
)
coreconfigitem('patch', 'fuzz',
    default=2,
)
coreconfigitem('paths', 'default',
    default=None,
)
coreconfigitem('paths', 'default-push',
    default=None,
)
coreconfigitem('paths', '.*',
    default=None,
    generic=True,
)
coreconfigitem('phases', 'checksubrepos',
    default='follow',
)
coreconfigitem('phases', 'new-commit',
    default='draft',
)
coreconfigitem('phases', 'publish',
    default=True,
)
coreconfigitem('profiling', 'enabled',
    default=False,
)
coreconfigitem('profiling', 'format',
    default='text',
)
coreconfigitem('profiling', 'freq',
    default=1000,
)
coreconfigitem('profiling', 'limit',
    default=30,
)
coreconfigitem('profiling', 'nested',
    default=0,
)
coreconfigitem('profiling', 'output',
    default=None,
)
coreconfigitem('profiling', 'showmax',
    default=0.999,
)
coreconfigitem('profiling', 'showmin',
    default=dynamicdefault,
)
coreconfigitem('profiling', 'sort',
    default='inlinetime',
)
coreconfigitem('profiling', 'statformat',
    default='hotpath',
)
coreconfigitem('profiling', 'type',
    default='stat',
)
coreconfigitem('progress', 'assume-tty',
    default=False,
)
coreconfigitem('progress', 'changedelay',
    default=1,
)
coreconfigitem('progress', 'clear-complete',
    default=True,
)
coreconfigitem('progress', 'debug',
    default=False,
)
coreconfigitem('progress', 'delay',
    default=3,
)
coreconfigitem('progress', 'disable',
    default=False,
)
coreconfigitem('progress', 'estimateinterval',
    default=60.0,
)
coreconfigitem('progress', 'format',
    default=lambda: ['topic', 'bar', 'number', 'estimate'],
)
coreconfigitem('progress', 'refresh',
    default=0.1,
)
coreconfigitem('progress', 'width',
    default=dynamicdefault,
)
coreconfigitem('push', 'pushvars.server',
    default=False,
)
coreconfigitem('server', 'bookmarks-pushkey-compat',
    default=True,
)
coreconfigitem('server', 'bundle1',
    default=True,
)
coreconfigitem('server', 'bundle1gd',
    default=None,
)
coreconfigitem('server', 'bundle1.pull',
    default=None,
)
coreconfigitem('server', 'bundle1gd.pull',
    default=None,
)
coreconfigitem('server', 'bundle1.push',
    default=None,
)
coreconfigitem('server', 'bundle1gd.push',
    default=None,
)
coreconfigitem('server', 'compressionengines',
    default=list,
)
coreconfigitem('server', 'concurrent-push-mode',
    default='strict',
)
coreconfigitem('server', 'disablefullbundle',
    default=False,
)
coreconfigitem('server', 'maxhttpheaderlen',
    default=1024,
)
coreconfigitem('server', 'preferuncompressed',
    default=False,
)
coreconfigitem('server', 'uncompressed',
    default=True,
)
coreconfigitem('server', 'uncompressedallowsecret',
    default=False,
)
coreconfigitem('server', 'validate',
    default=False,
)
coreconfigitem('server', 'zliblevel',
    default=-1,
)
coreconfigitem('share', 'pool',
    default=None,
)
coreconfigitem('share', 'poolnaming',
    default='identity',
)
coreconfigitem('smtp', 'host',
    default=None,
)
coreconfigitem('smtp', 'local_hostname',
    default=None,
)
coreconfigitem('smtp', 'password',
    default=None,
)
coreconfigitem('smtp', 'port',
    default=dynamicdefault,
)
coreconfigitem('smtp', 'tls',
    default='none',
)
coreconfigitem('smtp', 'username',
    default=None,
)
coreconfigitem('sparse', 'missingwarning',
    default=True,
)
coreconfigitem('subrepos', 'allowed',
    default=dynamicdefault,  # to make backporting simpler
)
coreconfigitem('subrepos', 'hg:allowed',
    default=dynamicdefault,
)
coreconfigitem('subrepos', 'git:allowed',
    default=dynamicdefault,
)
coreconfigitem('subrepos', 'svn:allowed',
    default=dynamicdefault,
)
coreconfigitem('templates', '.*',
    default=None,
    generic=True,
)
coreconfigitem('trusted', 'groups',
    default=list,
)
coreconfigitem('trusted', 'users',
    default=list,
)
coreconfigitem('ui', '_usedassubrepo',
    default=False,
)
coreconfigitem('ui', 'allowemptycommit',
    default=False,
)
coreconfigitem('ui', 'archivemeta',
    default=True,
)
coreconfigitem('ui', 'askusername',
    default=False,
)
coreconfigitem('ui', 'clonebundlefallback',
    default=False,
)
coreconfigitem('ui', 'clonebundleprefers',
    default=list,
)
coreconfigitem('ui', 'clonebundles',
    default=True,
)
coreconfigitem('ui', 'color',
    default='auto',
)
coreconfigitem('ui', 'commitsubrepos',
    default=False,
)
coreconfigitem('ui', 'debug',
    default=False,
)
coreconfigitem('ui', 'debugger',
    default=None,
)
coreconfigitem('ui', 'editor',
    default=dynamicdefault,
)
coreconfigitem('ui', 'fallbackencoding',
    default=None,
)
coreconfigitem('ui', 'forcecwd',
    default=None,
)
coreconfigitem('ui', 'forcemerge',
    default=None,
)
coreconfigitem('ui', 'formatdebug',
    default=False,
)
coreconfigitem('ui', 'formatjson',
    default=False,
)
coreconfigitem('ui', 'formatted',
    default=None,
)
coreconfigitem('ui', 'graphnodetemplate',
    default=None,
)
coreconfigitem('ui', 'interactive',
    default=None,
)
coreconfigitem('ui', 'interface',
    default=None,
)
coreconfigitem('ui', 'interface.chunkselector',
    default=None,
)
coreconfigitem('ui', 'logblockedtimes',
    default=False,
)
coreconfigitem('ui', 'logtemplate',
    default=None,
)
coreconfigitem('ui', 'merge',
    default=None,
)
coreconfigitem('ui', 'mergemarkers',
    default='basic',
)
coreconfigitem('ui', 'mergemarkertemplate',
    default=('{node|short} '
            '{ifeq(tags, "tip", "", '
            'ifeq(tags, "", "", "{tags} "))}'
            '{if(bookmarks, "{bookmarks} ")}'
            '{ifeq(branch, "default", "", "{branch} ")}'
            '- {author|user}: {desc|firstline}')
)
coreconfigitem('ui', 'nontty',
    default=False,
)
coreconfigitem('ui', 'origbackuppath',
    default=None,
)
coreconfigitem('ui', 'paginate',
    default=True,
)
coreconfigitem('ui', 'patch',
    default=None,
)
coreconfigitem('ui', 'portablefilenames',
    default='warn',
)
coreconfigitem('ui', 'promptecho',
    default=False,
)
coreconfigitem('ui', 'quiet',
    default=False,
)
coreconfigitem('ui', 'quietbookmarkmove',
    default=False,
)
coreconfigitem('ui', 'remotecmd',
    default='hg',
)
coreconfigitem('ui', 'report_untrusted',
    default=True,
)
coreconfigitem('ui', 'rollback',
    default=True,
)
coreconfigitem('ui', 'slash',
    default=False,
)
coreconfigitem('ui', 'ssh',
    default='ssh',
)
coreconfigitem('ui', 'ssherrorhint',
    default=None,
)
coreconfigitem('ui', 'statuscopies',
    default=False,
)
coreconfigitem('ui', 'strict',
    default=False,
)
coreconfigitem('ui', 'style',
    default='',
)
coreconfigitem('ui', 'supportcontact',
    default=None,
)
coreconfigitem('ui', 'textwidth',
    default=78,
)
coreconfigitem('ui', 'timeout',
    default='600',
)
coreconfigitem('ui', 'timeout.warn',
    default=0,
)
coreconfigitem('ui', 'traceback',
    default=False,
)
coreconfigitem('ui', 'tweakdefaults',
    default=False,
)
coreconfigitem('ui', 'username',
    alias=[('ui', 'user')]
)
coreconfigitem('ui', 'verbose',
    default=False,
)
coreconfigitem('verify', 'skipflags',
    default=None,
)
coreconfigitem('web', 'allowbz2',
    default=False,
)
coreconfigitem('web', 'allowgz',
    default=False,
)
coreconfigitem('web', 'allow-pull',
    alias=[('web', 'allowpull')],
    default=True,
)
coreconfigitem('web', 'allow-push',
    alias=[('web', 'allow_push')],
    default=list,
)
coreconfigitem('web', 'allowzip',
    default=False,
)
coreconfigitem('web', 'archivesubrepos',
    default=False,
)
coreconfigitem('web', 'cache',
    default=True,
)
coreconfigitem('web', 'contact',
    default=None,
)
coreconfigitem('web', 'deny_push',
    default=list,
)
coreconfigitem('web', 'guessmime',
    default=False,
)
coreconfigitem('web', 'hidden',
    default=False,
)
coreconfigitem('web', 'labels',
    default=list,
)
coreconfigitem('web', 'logoimg',
    default='hglogo.png',
)
coreconfigitem('web', 'logourl',
    default='https://mercurial-scm.org/',
)
coreconfigitem('web', 'accesslog',
    default='-',
)
coreconfigitem('web', 'address',
    default='',
)
coreconfigitem('web', 'allow_archive',
    default=list,
)
coreconfigitem('web', 'allow_read',
    default=list,
)
coreconfigitem('web', 'baseurl',
    default=None,
)
coreconfigitem('web', 'cacerts',
    default=None,
)
coreconfigitem('web', 'certificate',
    default=None,
)
coreconfigitem('web', 'collapse',
    default=False,
)
coreconfigitem('web', 'csp',
    default=None,
)
coreconfigitem('web', 'deny_read',
    default=list,
)
coreconfigitem('web', 'descend',
    default=True,
)
coreconfigitem('web', 'description',
    default="",
)
coreconfigitem('web', 'encoding',
    default=lambda: encoding.encoding,
)
coreconfigitem('web', 'errorlog',
    default='-',
)
coreconfigitem('web', 'ipv6',
    default=False,
)
coreconfigitem('web', 'maxchanges',
    default=10,
)
coreconfigitem('web', 'maxfiles',
    default=10,
)
coreconfigitem('web', 'maxshortchanges',
    default=60,
)
coreconfigitem('web', 'motd',
    default='',
)
coreconfigitem('web', 'name',
    default=dynamicdefault,
)
coreconfigitem('web', 'port',
    default=8000,
)
coreconfigitem('web', 'prefix',
    default='',
)
coreconfigitem('web', 'push_ssl',
    default=True,
)
coreconfigitem('web', 'refreshinterval',
    default=20,
)
coreconfigitem('web', 'staticurl',
    default=None,
)
coreconfigitem('web', 'stripes',
    default=1,
)
coreconfigitem('web', 'style',
    default='paper',
)
coreconfigitem('web', 'templates',
    default=None,
)
coreconfigitem('web', 'view',
    default='served',
)
coreconfigitem('worker', 'backgroundclose',
    default=dynamicdefault,
)
# Windows defaults to a limit of 512 open files. A buffer of 128
# should give us enough headway.
coreconfigitem('worker', 'backgroundclosemaxqueue',
    default=384,
)
coreconfigitem('worker', 'backgroundcloseminfilecount',
    default=2048,
)
coreconfigitem('worker', 'backgroundclosethreadcount',
    default=4,
)
coreconfigitem('worker', 'enabled',
    default=True,
)
coreconfigitem('worker', '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('commands', 'rebase.requiredest',
            default=False,
)
coreconfigitem('experimental', 'rebaseskipobsolete',
    default=True,
)
coreconfigitem('rebase', 'singletransaction',
    default=False,
)
coreconfigitem('rebase', 'experimental.inmemory',
    default=False,
)