wireprotov2: advertise recommended batch size for requests

Currently, exchangev2 hardcodes the batch size for how many revisions
to fetch per command request. A single value is not appropriate
for every repository because some repositories may have a drastically
different "shape" from other repositories. e.g. a repo with lots of
small files may benefit from larger batch sizes than a repo with lots
of large files. And depending on caching used by the server, the server
may wish to control the number of commands (to e.g. mitigate overhead
of following content redirects).

This commit teaches wireprotov2 commands to declare extra metadata
which is advertised as part of the command descriptor. The manifestdata
command has been taught to advertise a recommended batch size for
requests.

Differential Revision: https://phab.mercurial-scm.org/D4975

mercurial/configitems.py

@@ -1,1421 +1,1424 b''
 # 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 = "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=dynamicdefault,
     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('annotate', 'word-diff',
     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='',
 )
 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', 'grep.all-files',
     default=False,
 )
 coreconfigitem('commands', 'resolve.confirm',
     default=False,
 )
 coreconfigitem('commands', 'resolve.explicit-re-merge',
     default=False,
 )
 coreconfigitem('commands', 'resolve.mark-check',
     default='none',
 )
 coreconfigitem('commands', 'show.aliasprefix',
     default=list,
 )
 coreconfigitem('commands', 'status.relative',
     default=False,
 )
 coreconfigitem('commands', 'status.skipstates',
     default=[],
 )
 coreconfigitem('commands', 'status.terse',
     default='',
 )
 coreconfigitem('commands', 'status.verbose',
     default=False,
 )
 coreconfigitem('commands', 'update.check',
     default=None,
 )
 coreconfigitem('commands', 'update.requiredest',
     default=False,
 )
 coreconfigitem('committemplate', '.*',
     default=None,
     generic=True,
 )
 coreconfigitem('convert', 'bzr.saverev',
     default=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.copies',
     default=False,
 )
 coreconfigitem('devel', 'debug.extensions',
     default=False,
 )
 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('diff', 'word-diff',
     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', 'bundle2lazylocking',
     default=False,
 )
 coreconfigitem('experimental', 'bundlecomplevel',
     default=None,
 )
 coreconfigitem('experimental', 'bundlecomplevel.bzip2',
     default=None,
 )
 coreconfigitem('experimental', 'bundlecomplevel.gzip',
     default=None,
 )
 coreconfigitem('experimental', 'bundlecomplevel.none',
     default=None,
 )
 coreconfigitem('experimental', 'bundlecomplevel.zstd',
     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', 'maxdeltachainspan',
     default=-1,
 )
 coreconfigitem('experimental', 'mergetempdirprefix',
     default=None,
 )
 coreconfigitem('experimental', 'mmapindexthreshold',
     default=None,
 )
 coreconfigitem('experimental', 'narrow',
     default=False,
 )
 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', 'httppeer.advertise-v2',
     default=False,
 )
 coreconfigitem('experimental', 'httppeer.v2-encoder-order',
     default=None,
 )
 coreconfigitem('experimental', 'httppostargs',
     default=False,
 )
 coreconfigitem('experimental', 'mergedriver',
     default=None,
 )
 coreconfigitem('experimental', 'nointerrupt', default=False)
 coreconfigitem('experimental', 'nointerrupt-interactiveonly', default=True)
 
 coreconfigitem('experimental', 'obsmarkers-exchange-debug',
     default=False,
 )
 coreconfigitem('experimental', 'remotenames',
     default=False,
 )
 coreconfigitem('experimental', 'removeemptydirs',
     default=True,
 )
 coreconfigitem('experimental', 'revisions.prefixhexnode',
     default=False,
 )
 coreconfigitem('experimental', 'revlogv2',
     default=None,
 )
 coreconfigitem('experimental', 'revisions.disambiguatewithin',
     default=None,
 )
+coreconfigitem('experimental', 'server.manifestdata.recommended-batch-size',
+    default=100000,
+)
 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=0.50,
 )
 coreconfigitem('experimental', 'sparse-read.min-gap-size',
     default='65K',
 )
 coreconfigitem('experimental', 'treemanifest',
     default=False,
 )
 coreconfigitem('experimental', 'update.atomic-file',
     default=False,
 )
 coreconfigitem('experimental', 'sshpeer.advertise-v2',
     default=False,
 )
 coreconfigitem('experimental', 'web.apiserver',
     default=False,
 )
 coreconfigitem('experimental', 'web.api.http-v2',
     default=False,
 )
 coreconfigitem('experimental', 'web.api.debugreflect',
     default=False,
 )
 coreconfigitem('experimental', 'worker.wdir-get-thread-safe',
     default=False,
 )
 coreconfigitem('experimental', 'xdiff',
     default=False,
 )
 coreconfigitem('extensions', '.*',
     default=None,
     generic=True,
 )
 coreconfigitem('extdata', '.*',
     default=None,
     generic=True,
 )
 coreconfigitem('format', 'chunkcachesize',
     default=None,
 )
 coreconfigitem('format', 'dotencode',
     default=True,
 )
 coreconfigitem('format', 'generaldelta',
     default=False,
 )
 coreconfigitem('format', 'manifestcachesize',
     default=None,
 )
 coreconfigitem('format', 'maxchainlen',
     default=dynamicdefault,
 )
 coreconfigitem('format', 'obsstore-version',
     default=None,
 )
 coreconfigitem('format', 'sparse-revlog',
     default=False,
 )
 coreconfigitem('format', 'usefncache',
     default=True,
 )
 coreconfigitem('format', 'usegeneraldelta',
     default=True,
 )
 coreconfigitem('format', 'usestore',
     default=True,
 )
 coreconfigitem('format', 'internal-phase',
     default=False,
 )
 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('http', 'timeout',
     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', 'strict-capability-check',
     default=False,
 )
 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', 'time-track',
     default='cpu',
 )
 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('storage', 'new-repo-backend',
     default='revlogv1',
 )
 coreconfigitem('storage', 'revlog.optimize-delta-parent-choice',
     default=True,
     alias=[('format', 'aggressivemergedeltas')],
 )
 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', 'bundle2.stream',
     default=True,
     alias=[('experimental', 'bundle2.stream')]
 )
 coreconfigitem('server', 'compressionengines',
     default=list,
 )
 coreconfigitem('server', 'concurrent-push-mode',
     default='strict',
 )
 coreconfigitem('server', 'disablefullbundle',
     default=False,
 )
 coreconfigitem('server', 'maxhttpheaderlen',
     default=1024,
 )
 coreconfigitem('server', 'pullbundle',
     default=False,
 )
 coreconfigitem('server', 'preferuncompressed',
     default=False,
 )
 coreconfigitem('server', 'streamunbundle',
     default=False,
 )
 coreconfigitem('server', 'uncompressed',
     default=True,
 )
 coreconfigitem('server', 'uncompressedallowsecret',
     default=False,
 )
 coreconfigitem('server', 'validate',
     default=False,
 )
 coreconfigitem('server', 'zliblevel',
     default=-1,
 )
 coreconfigitem('server', 'zstdlevel',
     default=3,
 )
 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', 'history-editing-backup',
     default=True,
 )
 coreconfigitem('ui', 'interactive',
     default=None,
 )
 coreconfigitem('ui', 'interface',
     default=None,
 )
 coreconfigitem('ui', 'interface.chunkselector',
     default=None,
 )
 coreconfigitem('ui', 'large-file-limit',
     default=10000000,
 )
 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', 'signal-safe-lock',
     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',
     alias=[('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', 'server-header',
     default=None,
 )
 coreconfigitem('web', 'static',
     default=None,
 )
 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,
 )

mercurial/help/internals/wireprotocolv2.txt

@@ -1,529 +1,542 b''
 **Experimental and under active development**
 
 This section documents the wire protocol commands exposed to transports
 using the frame-based protocol. The set of commands exposed through
 these transports is distinct from the set of commands exposed to legacy
 transports.
 
 The frame-based protocol uses CBOR to encode command execution requests.
 All command arguments must be mapped to a specific or set of CBOR data
 types.
 
 The response to many commands is also CBOR. There is no common response
 format: each command defines its own response format.
 
 TODOs
 =====
 
 * Add "node namespace" support to each command. In order to support
   SHA-1 hash transition, we want servers to be able to expose different
   "node namespaces" for the same data. Every command operating on nodes
   should specify which "node namespace" it is operating on and responses
   should encode the "node namespace" accordingly.
 
 Commands
 ========
 
 The sections below detail all commands available to wire protocol version
 2.
 
 branchmap
 ---------
 
 Obtain heads in named branches.
 
 Receives no arguments.
 
 The response is a map with bytestring keys defining the branch name.
 Values are arrays of bytestring defining raw changeset nodes.
 
 capabilities
 ------------
 
 Obtain the server's capabilities.
 
 Receives no arguments.
 
 This command is typically called only as part of the handshake during
 initial connection establishment.
 
 The response is a map with bytestring keys defining server information.
 
 The defined keys are:
 
 commands
    A map defining available wire protocol commands on this server.
 
    Keys in the map are the names of commands that can be invoked. Values
    are maps defining information about that command. The bytestring keys
    are:
 
       args
          (map) Describes arguments accepted by the command.
 
          Keys are bytestrings denoting the argument name.
 
          Values are maps describing the argument. The map has the following
          bytestring keys:
 
          default
             (varied) The default value for this argument if not specified. Only
             present if ``required`` is not true.
 
          required
             (boolean) Whether the argument must be specified. Failure to send
             required arguments will result in an error executing the command.
 
          type
             (bytestring) The type of the argument. e.g. ``bytes`` or ``bool``.
 
          validvalues
             (set) Values that are recognized for this argument. Some arguments
             only allow a fixed set of values to be specified. These arguments
             may advertise that set in this key. If this set is advertised and
             a value not in this set is specified, the command should result
             in error.
 
       permissions
          An array of permissions required to execute this command.
 
+      *
+         (various) Individual commands may define extra keys that supplement
+         generic command metadata. See the command definition for more.
+
 framingmediatypes
    An array of bytestrings defining the supported framing protocol
    media types. Servers will not accept media types not in this list.
 
 pathfilterprefixes
    (set of bytestring) Matcher prefixes that are recognized when performing
    path filtering. Specifying a path filter whose type/prefix does not
    match one in this set will likely be rejected by the server.
 
 rawrepoformats
    An array of storage formats the repository is using. This set of
    requirements can be used to determine whether a client can read a
    *raw* copy of file data available.
 
 redirect
    A map declaring potential *content redirects* that may be used by this
    server. Contains the following bytestring keys:
 
    targets
       (array of maps) Potential redirect targets. Values are maps describing
       this target in more detail. Each map has the following bytestring keys:
 
       name
          (bytestring) Identifier for this target. The identifier will be used
          by clients to uniquely identify this target.
 
       protocol
          (bytestring) High-level network protocol. Values can be
          ``http``, ```https``, ``ssh``, etc.
 
       uris
           (array of bytestrings) Representative URIs for this target.
 
       snirequired (optional)
           (boolean) Indicates whether Server Name Indication is required
           to use this target. Defaults to False.
 
       tlsversions (optional)
           (array of bytestring) Indicates which TLS versions are supported by
           this target. Values are ``1.1``, ``1.2``, ``1.3``, etc.
 
    hashes
       (array of bytestring) Indicates support for hashing algorithms that are
       used to ensure content integrity. Values include ``sha1``, ``sha256``,
       etc.
 
 changesetdata
 -------------
 
 Obtain various data related to changesets.
 
 The command accepts the following arguments:
 
 noderange
    (array of arrays of bytestrings) An array of 2 elements, each being an
    array of node bytestrings. The first array denotes the changelog revisions
    that are already known to the client. The second array denotes the changelog
    revision DAG heads to fetch. The argument essentially defines a DAG range
    bounded by root and head nodes to fetch.
 
    The roots array may be empty. The heads array must be defined.
 
 nodes
    (array of bytestrings) Changelog revisions to request explicitly.
 
 nodesdepth
    (unsigned integer) Number of ancestor revisions of elements in ``nodes``
    to also fetch. When defined, for each element in ``nodes``, DAG ancestors
    will be walked until at most N total revisions are emitted.
 
 fields
    (set of bytestring) Which data associated with changelog revisions to
    fetch. The following values are recognized:
 
    bookmarks
       Bookmarks associated with a revision.
 
    parents
       Parent revisions.
 
    phase
       The phase state of a revision.
 
    revision
       The raw, revision data for the changelog entry. The hash of this data
       will match the revision's node value.
 
 The server resolves the set of revisions relevant to the request by taking
 the union of the ``noderange`` and ``nodes`` arguments. At least one of these
 arguments must be defined.
 
 The response bytestream starts with a CBOR map describing the data that follows.
 This map has the following bytestring keys:
 
 totalitems
    (unsigned integer) Total number of changelog revisions whose data is being
    transferred. This maps to the set of revisions in the requested node
    range, not the total number of records that follow (see below for why).
 
 Following the map header is a series of 0 or more CBOR values. If values
 are present, the first value will always be a map describing a single changeset
 revision.
 
 If the ``fieldsfollowing`` key is present, the map will immediately be followed
 by N CBOR bytestring values, where N is the number of elements in
 ``fieldsfollowing``. Each bytestring value corresponds to a field denoted
 by ``fieldsfollowing``.
 
 Following the optional bytestring field values is the next revision descriptor
 map, or end of stream.
 
 Each revision descriptor map has the following bytestring keys:
 
 node
    (bytestring) The node value for this revision. This is the SHA-1 hash of
    the raw revision data.
 
 bookmarks (optional)
    (array of bytestrings) Bookmarks attached to this revision. Only present
    if ``bookmarks`` data is being requested and the revision has bookmarks
    attached.
 
 fieldsfollowing (optional)
    (array of 2-array) Denotes what fields immediately follow this map. Each
    value is an array with 2 elements: the bytestring field name and an unsigned
    integer describing the length of the data, in bytes.
 
    If this key isn't present, no special fields will follow this map.
 
    The following fields may be present:
 
    revision
       Raw, revision data for the changelog entry. Contains a serialized form
       of the changeset data, including the author, date, commit message, set
       of changed files, manifest node, and other metadata.
 
       Only present if the ``revision`` field was requested.
 
 parents (optional)
    (array of bytestrings) The nodes representing the parent revisions of this
    revision. Only present if ``parents`` data is being requested.
 
 phase (optional)
    (bytestring) The phase that a revision is in. Recognized values are
    ``secret``, ``draft``, and ``public``. Only present if ``phase`` data
    is being requested.
 
 If nodes are requested via ``noderange``, they will be emitted in DAG order,
 parents always before children.
 
 If nodes are requested via ``nodes``, they will be emitted in requested order.
 
 Nodes from ``nodes`` are emitted before nodes from ``noderange``.
 
 The set of changeset revisions emitted may not match the exact set of
 changesets requested. Furthermore, the set of keys present on each
 map may vary. This is to facilitate emitting changeset updates as well
 as new revisions.
 
 For example, if the request wants ``phase`` and ``revision`` data,
 the response may contain entries for each changeset in the common nodes
 set with the ``phase`` key and without the ``revision`` key in order
 to reflect a phase-only update.
 
 TODO support different revision selection mechanisms (e.g. non-public, specific
 revisions)
 TODO support different hash "namespaces" for revisions (e.g. sha-1 versus other)
 TODO support emitting obsolescence data
 TODO support filtering based on relevant paths (narrow clone)
 TODO support hgtagsfnodes cache / tags data
 TODO support branch heads cache
 TODO consider unify query mechanism. e.g. as an array of "query descriptors"
 rather than a set of top-level arguments that have semantics when combined.
 
 filedata
 --------
 
 Obtain various data related to an individual tracked file.
 
 The command accepts the following arguments:
 
 fields
    (set of bytestring) Which data associated with a file to fetch.
    The following values are recognized:
 
    parents
       Parent nodes for the revision.
 
    revision
       The raw revision data for a file.
 
 haveparents
    (bool) Whether the client has the parent revisions of all requested
    nodes. If set, the server may emit revision data as deltas against
    any parent revision. If not set, the server MUST only emit deltas for
    revisions previously emitted by this command.
 
    False is assumed in the absence of any value.
 
 nodes
    (array of bytestrings) File nodes whose data to retrieve.
 
 path
    (bytestring) Path of the tracked file whose data to retrieve.
 
 TODO allow specifying revisions via alternate means (such as from
 changeset revisions or ranges)
 
 The response bytestream starts with a CBOR map describing the data that
 follows. It has the following bytestream keys:
 
 totalitems
    (unsigned integer) Total number of file revisions whose data is
    being returned.
 
 Following the map header is a series of 0 or more CBOR values. If values
 are present, the first value will always be a map describing a single changeset
 revision.
 
 If the ``fieldsfollowing`` key is present, the map will immediately be followed
 by N CBOR bytestring values, where N is the number of elements in
 ``fieldsfollowing``. Each bytestring value corresponds to a field denoted
 by ``fieldsfollowing``.
 
 Following the optional bytestring field values is the next revision descriptor
 map, or end of stream.
 
 Each revision descriptor map has the following bytestring keys:
 
 Each map has the following bytestring keys:
 
 node
    (bytestring) The node of the file revision whose data is represented.
 
 deltabasenode
    (bytestring) Node of the file revision the following delta is against.
 
    Only present if the ``revision`` field is requested and delta data
    follows this map.
 
 fieldsfollowing
    (array of 2-array) Denotes extra bytestring fields that following this map.
    See the documentation for ``changesetdata`` for semantics.
 
    The following named fields may be present:
 
    ``delta``
       The delta data to use to construct the fulltext revision.
 
       Only present if the ``revision`` field is requested and a delta is
       being emitted. The ``deltabasenode`` top-level key will also be
       present if this field is being emitted.
 
    ``revision``
       The fulltext revision data for this manifest. Only present if the
       ``revision`` field is requested and a fulltext revision is being emitted.
 
 parents
    (array of bytestring) The nodes of the parents of this file revision.
 
    Only present if the ``parents`` field is requested.
 
 When ``revision`` data is requested, the server chooses to emit either fulltext
 revision data or a delta. What the server decides can be inferred by looking
 for the presence of the ``delta`` or ``revision`` keys in the
 ``fieldsfollowing`` array.
 
 heads
 -----
 
 Obtain DAG heads in the repository.
 
 The command accepts the following arguments:
 
 publiconly (optional)
    (boolean) If set, operate on the DAG for public phase changesets only.
    Non-public (i.e. draft) phase DAG heads will not be returned.
 
 The response is a CBOR array of bytestrings defining changeset nodes
 of DAG heads. The array can be empty if the repository is empty or no
 changesets satisfied the request.
 
 TODO consider exposing phase of heads in response
 
 known
 -----
 
 Determine whether a series of changeset nodes is known to the server.
 
 The command accepts the following arguments:
 
 nodes
    (array of bytestrings) List of changeset nodes whose presence to
    query.
 
 The response is a bytestring where each byte contains a 0 or 1 for the
 corresponding requested node at the same index.
 
 TODO use a bit array for even more compact response
 
 listkeys
 --------
 
 List values in a specified ``pushkey`` namespace.
 
 The command receives the following arguments:
 
 namespace
    (bytestring) Pushkey namespace to query.
 
 The response is a map with bytestring keys and values.
 
 TODO consider using binary to represent nodes in certain pushkey namespaces.
 
 lookup
 ------
 
 Try to resolve a value to a changeset revision.
 
 Unlike ``known`` which operates on changeset nodes, lookup operates on
 node fragments and other names that a user may use.
 
 The command receives the following arguments:
 
 key
    (bytestring) Value to try to resolve.
 
 On success, returns a bytestring containing the resolved node.
 
 manifestdata
 ------------
 
 Obtain various data related to manifests (which are lists of files in
 a revision).
 
 The command accepts the following arguments:
 
 fields
    (set of bytestring) Which data associated with manifests to fetch.
    The following values are recognized:
 
    parents
       Parent nodes for the manifest.
 
    revision
       The raw revision data for the manifest.
 
 haveparents
    (bool) Whether the client has the parent revisions of all requested
    nodes. If set, the server may emit revision data as deltas against
    any parent revision. If not set, the server MUST only emit deltas for
    revisions previously emitted by this command.
 
    False is assumed in the absence of any value.
 
 nodes
    (array of bytestring) Manifest nodes whose data to retrieve.
 
 tree
    (bytestring) Path to manifest to retrieve. The empty bytestring represents
    the root manifest. All other values represent directories/trees within
    the repository.
 
 TODO allow specifying revisions via alternate means (such as from changeset
 revisions or ranges)
 TODO consider recursive expansion of manifests (with path filtering for
 narrow use cases)
 
 The response bytestream starts with a CBOR map describing the data that
 follows. It has the following bytestring keys:
 
 totalitems
    (unsigned integer) Total number of manifest revisions whose data is
    being returned.
 
 Following the map header is a series of 0 or more CBOR values. If values
 are present, the first value will always be a map describing a single manifest
 revision.
 
 If the ``fieldsfollowing`` key is present, the map will immediately be followed
 by N CBOR bytestring values, where N is the number of elements in
 ``fieldsfollowing``. Each bytestring value corresponds to a field denoted
 by ``fieldsfollowing``.
 
 Following the optional bytestring field values is the next revision descriptor
 map, or end of stream.
 
 Each revision descriptor map has the following bytestring keys:
 
 node
    (bytestring) The node of the manifest revision whose data is represented.
 
 deltabasenode
    (bytestring) The node that the delta representation of this revision is
    computed against. Only present if the ``revision`` field is requested and
    a delta is being emitted.
 
 fieldsfollowing
    (array of 2-array) Denotes extra bytestring fields that following this map.
    See the documentation for ``changesetdata`` for semantics.
 
    The following named fields may be present:
 
    ``delta``
       The delta data to use to construct the fulltext revision.
 
       Only present if the ``revision`` field is requested and a delta is
       being emitted. The ``deltabasenode`` top-level key will also be
       present if this field is being emitted.
 
    ``revision``
       The fulltext revision data for this manifest. Only present if the
       ``revision`` field is requested and a fulltext revision is being emitted.
 
 parents
    (array of bytestring) The nodes of the parents of this manifest revision.
    Only present if the ``parents`` field is requested.
 
 When ``revision`` data is requested, the server chooses to emit either fulltext
 revision data or a delta. What the server decides can be inferred by looking
 for the presence of ``delta`` or ``revision`` in the ``fieldsfollowing`` array.
 
+Servers MAY advertise the following extra fields in the capabilities
+descriptor for this command:
+
+recommendedbatchsize
+   (unsigned integer) Number of revisions the server recommends as a batch
+   query size. If defined, clients needing to issue multiple ``manifestdata``
+   commands to obtain needed data SHOULD construct their commands to have
+   this many revisions per request.
+
 pushkey
 -------
 
 Set a value using the ``pushkey`` protocol.
 
 The command receives the following arguments:
 
 namespace
    (bytestring) Pushkey namespace to operate on.
 key
    (bytestring) The pushkey key to set.
 old
    (bytestring) Old value for this key.
 new
    (bytestring) New value for this key.
 
 TODO consider using binary to represent nodes is certain pushkey namespaces.
 TODO better define response type and meaning.

mercurial/wireprototypes.py

@@ -1,390 +1,391 b''
 # Copyright 2018 Gregory Szorc <[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
 
 from .node import (
     bin,
     hex,
 )
 from .i18n import _
 from .thirdparty import (
     attr,
 )
 from . import (
     error,
     util,
 )
 from .utils import (
     interfaceutil,
 )
 
 # Names of the SSH protocol implementations.
 SSHV1 = 'ssh-v1'
 # These are advertised over the wire. Increment the counters at the end
 # to reflect BC breakages.
 SSHV2 = 'exp-ssh-v2-0002'
 HTTP_WIREPROTO_V2 = 'exp-http-v2-0002'
 
 NARROWCAP = 'exp-narrow-1'
 ELLIPSESCAP = 'exp-ellipses-1'
 
 # All available wire protocol transports.
 TRANSPORTS = {
     SSHV1: {
         'transport': 'ssh',
         'version': 1,
     },
     SSHV2: {
         'transport': 'ssh',
         # TODO mark as version 2 once all commands are implemented.
         'version': 1,
     },
     'http-v1': {
         'transport': 'http',
         'version': 1,
     },
     HTTP_WIREPROTO_V2: {
         'transport': 'http',
         'version': 2,
     }
 }
 
 class bytesresponse(object):
     """A wire protocol response consisting of raw bytes."""
     def __init__(self, data):
         self.data = data
 
 class ooberror(object):
     """wireproto reply: failure of a batch of operation
 
     Something failed during a batch call. The error message is stored in
     `self.message`.
     """
     def __init__(self, message):
         self.message = message
 
 class pushres(object):
     """wireproto reply: success with simple integer return
 
     The call was successful and returned an integer contained in `self.res`.
     """
     def __init__(self, res, output):
         self.res = res
         self.output = output
 
 class pusherr(object):
     """wireproto reply: failure
 
     The call failed. The `self.res` attribute contains the error message.
     """
     def __init__(self, res, output):
         self.res = res
         self.output = output
 
 class streamres(object):
     """wireproto reply: binary stream
 
     The call was successful and the result is a stream.
 
     Accepts a generator containing chunks of data to be sent to the client.
 
     ``prefer_uncompressed`` indicates that the data is expected to be
     uncompressable and that the stream should therefore use the ``none``
     engine.
     """
     def __init__(self, gen=None, prefer_uncompressed=False):
         self.gen = gen
         self.prefer_uncompressed = prefer_uncompressed
 
 class streamreslegacy(object):
     """wireproto reply: uncompressed binary stream
 
     The call was successful and the result is a stream.
 
     Accepts a generator containing chunks of data to be sent to the client.
 
     Like ``streamres``, but sends an uncompressed data for "version 1" clients
     using the application/mercurial-0.1 media type.
     """
     def __init__(self, gen=None):
         self.gen = gen
 
 # list of nodes encoding / decoding
 def decodelist(l, sep=' '):
     if l:
         return [bin(v) for v in  l.split(sep)]
     return []
 
 def encodelist(l, sep=' '):
     try:
         return sep.join(map(hex, l))
     except TypeError:
         raise
 
 # batched call argument encoding
 
 def escapebatcharg(plain):
     return (plain
             .replace(':', ':c')
             .replace(',', ':o')
             .replace(';', ':s')
             .replace('=', ':e'))
 
 def unescapebatcharg(escaped):
     return (escaped
             .replace(':e', '=')
             .replace(':s', ';')
             .replace(':o', ',')
             .replace(':c', ':'))
 
 # mapping of options accepted by getbundle and their types
 #
 # Meant to be extended by extensions. It is extensions responsibility to ensure
 # such options are properly processed in exchange.getbundle.
 #
 # supported types are:
 #
 # :nodes: list of binary nodes
 # :csv:   list of comma-separated values
 # :scsv:  list of comma-separated values return as set
 # :plain: string with no transformation needed.
 GETBUNDLE_ARGUMENTS = {
     'heads':  'nodes',
     'bookmarks': 'boolean',
     'common': 'nodes',
     'obsmarkers': 'boolean',
     'phases': 'boolean',
     'bundlecaps': 'scsv',
     'listkeys': 'csv',
     'cg': 'boolean',
     'cbattempted': 'boolean',
     'stream': 'boolean',
 }
 
 class baseprotocolhandler(interfaceutil.Interface):
     """Abstract base class for wire protocol handlers.
 
     A wire protocol handler serves as an interface between protocol command
     handlers and the wire protocol transport layer. Protocol handlers provide
     methods to read command arguments, redirect stdio for the duration of
     the request, handle response types, etc.
     """
 
     name = interfaceutil.Attribute(
         """The name of the protocol implementation.
 
         Used for uniquely identifying the transport type.
         """)
 
     def getargs(args):
         """return the value for arguments in <args>
 
         For version 1 transports, returns a list of values in the same
         order they appear in ``args``. For version 2 transports, returns
         a dict mapping argument name to value.
         """
 
     def getprotocaps():
         """Returns the list of protocol-level capabilities of client
 
         Returns a list of capabilities as declared by the client for
         the current request (or connection for stateful protocol handlers)."""
 
     def getpayload():
         """Provide a generator for the raw payload.
 
         The caller is responsible for ensuring that the full payload is
         processed.
         """
 
     def mayberedirectstdio():
         """Context manager to possibly redirect stdio.
 
         The context manager yields a file-object like object that receives
         stdout and stderr output when the context manager is active. Or it
         yields ``None`` if no I/O redirection occurs.
 
         The intent of this context manager is to capture stdio output
         so it may be sent in the response. Some transports support streaming
         stdio to the client in real time. For these transports, stdio output
         won't be captured.
         """
 
     def client():
         """Returns a string representation of this client (as bytes)."""
 
     def addcapabilities(repo, caps):
         """Adds advertised capabilities specific to this protocol.
 
         Receives the list of capabilities collected so far.
 
         Returns a list of capabilities. The passed in argument can be returned.
         """
 
     def checkperm(perm):
         """Validate that the client has permissions to perform a request.
 
         The argument is the permission required to proceed. If the client
         doesn't have that permission, the exception should raise or abort
         in a protocol specific manner.
         """
 
 class commandentry(object):
     """Represents a declared wire protocol command."""
     def __init__(self, func, args='', transports=None,
-                 permission='push', cachekeyfn=None):
+                 permission='push', cachekeyfn=None, extracapabilitiesfn=None):
         self.func = func
         self.args = args
         self.transports = transports or set()
         self.permission = permission
         self.cachekeyfn = cachekeyfn
+        self.extracapabilitiesfn = extracapabilitiesfn
 
     def _merge(self, func, args):
         """Merge this instance with an incoming 2-tuple.
 
         This is called when a caller using the old 2-tuple API attempts
         to replace an instance. The incoming values are merged with
         data not captured by the 2-tuple and a new instance containing
         the union of the two objects is returned.
         """
         return commandentry(func, args=args, transports=set(self.transports),
                             permission=self.permission)
 
     # Old code treats instances as 2-tuples. So expose that interface.
     def __iter__(self):
         yield self.func
         yield self.args
 
     def __getitem__(self, i):
         if i == 0:
             return self.func
         elif i == 1:
             return self.args
         else:
             raise IndexError('can only access elements 0 and 1')
 
 class commanddict(dict):
     """Container for registered wire protocol commands.
 
     It behaves like a dict. But __setitem__ is overwritten to allow silent
     coercion of values from 2-tuples for API compatibility.
     """
     def __setitem__(self, k, v):
         if isinstance(v, commandentry):
             pass
         # Cast 2-tuples to commandentry instances.
         elif isinstance(v, tuple):
             if len(v) != 2:
                 raise ValueError('command tuples must have exactly 2 elements')
 
             # It is common for extensions to wrap wire protocol commands via
             # e.g. ``wireproto.commands[x] = (newfn, args)``. Because callers
             # doing this aren't aware of the new API that uses objects to store
             # command entries, we automatically merge old state with new.
             if k in self:
                 v = self[k]._merge(v[0], v[1])
             else:
                 # Use default values from @wireprotocommand.
                 v = commandentry(v[0], args=v[1],
                                  transports=set(TRANSPORTS),
                                  permission='push')
         else:
             raise ValueError('command entries must be commandentry instances '
                              'or 2-tuples')
 
         return super(commanddict, self).__setitem__(k, v)
 
     def commandavailable(self, command, proto):
         """Determine if a command is available for the requested protocol."""
         assert proto.name in TRANSPORTS
 
         entry = self.get(command)
 
         if not entry:
             return False
 
         if proto.name not in entry.transports:
             return False
 
         return True
 
 def supportedcompengines(ui, role):
     """Obtain the list of supported compression engines for a request."""
     assert role in (util.CLIENTROLE, util.SERVERROLE)
 
     compengines = util.compengines.supportedwireengines(role)
 
     # Allow config to override default list and ordering.
     if role == util.SERVERROLE:
         configengines = ui.configlist('server', 'compressionengines')
         config = 'server.compressionengines'
     else:
         # This is currently implemented mainly to facilitate testing. In most
         # cases, the server should be in charge of choosing a compression engine
         # because a server has the most to lose from a sub-optimal choice. (e.g.
         # CPU DoS due to an expensive engine or a network DoS due to poor
         # compression ratio).
         configengines = ui.configlist('experimental',
                                       'clientcompressionengines')
         config = 'experimental.clientcompressionengines'
 
     # No explicit config. Filter out the ones that aren't supposed to be
     # advertised and return default ordering.
     if not configengines:
         attr = 'serverpriority' if role == util.SERVERROLE else 'clientpriority'
         return [e for e in compengines
                 if getattr(e.wireprotosupport(), attr) > 0]
 
     # If compression engines are listed in the config, assume there is a good
     # reason for it (like server operators wanting to achieve specific
     # performance characteristics). So fail fast if the config references
     # unusable compression engines.
     validnames = set(e.name() for e in compengines)
     invalidnames = set(e for e in configengines if e not in validnames)
     if invalidnames:
         raise error.Abort(_('invalid compression engine defined in %s: %s') %
                           (config, ', '.join(sorted(invalidnames))))
 
     compengines = [e for e in compengines if e.name() in configengines]
     compengines = sorted(compengines,
                          key=lambda e: configengines.index(e.name()))
 
     if not compengines:
         raise error.Abort(_('%s config option does not specify any known '
                             'compression engines') % config,
                           hint=_('usable compression engines: %s') %
                           ', '.sorted(validnames))
 
     return compengines
 
 @attr.s
 class encodedresponse(object):
     """Represents response data that is already content encoded.
 
     Wire protocol version 2 only.
 
     Commands typically emit Python objects that are encoded and sent over the
     wire. If commands emit an object of this type, the encoding step is bypassed
     and the content from this object is used instead.
     """
     data = attr.ib()
 
 @attr.s
 class alternatelocationresponse(object):
     """Represents a response available at an alternate location.
 
     Instances are sent in place of actual response objects when the server
     is sending a "content redirect" response.
 
     Only compatible with wire protocol version 2.
     """
     url = attr.ib()
     mediatype = attr.ib()
     size = attr.ib(default=None)
     fullhashes = attr.ib(default=None)
     fullhashseed = attr.ib(default=None)
     serverdercerts = attr.ib(default=None)
     servercadercerts = attr.ib(default=None)

mercurial/wireprotov2server.py

@@ -1,1192 +1,1212 b''
 # Copyright 21 May 2005 - (c) 2005 Jake Edge <[e-mail]>
 # Copyright 2005-2007 Matt Mackall <[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 contextlib
 import hashlib
 
 from .i18n import _
 from .node import (
     hex,
     nullid,
 )
 from . import (
     discovery,
     encoding,
     error,
     narrowspec,
     pycompat,
     wireprotoframing,
     wireprototypes,
 )
 from .utils import (
     cborutil,
     interfaceutil,
     stringutil,
 )
 
 FRAMINGTYPE = b'application/mercurial-exp-framing-0006'
 
 HTTP_WIREPROTO_V2 = wireprototypes.HTTP_WIREPROTO_V2
 
 COMMANDS = wireprototypes.commanddict()
 
 # Value inserted into cache key computation function. Change the value to
 # force new cache keys for every command request. This should be done when
 # there is a change to how caching works, etc.
 GLOBAL_CACHE_VERSION = 1
 
 def handlehttpv2request(rctx, req, res, checkperm, urlparts):
     from .hgweb import common as hgwebcommon
 
     # URL space looks like: <permissions>/<command>, where <permission> can
     # be ``ro`` or ``rw`` to signal read-only or read-write, respectively.
 
     # Root URL does nothing meaningful... yet.
     if not urlparts:
         res.status = b'200 OK'
         res.headers[b'Content-Type'] = b'text/plain'
         res.setbodybytes(_('HTTP version 2 API handler'))
         return
 
     if len(urlparts) == 1:
         res.status = b'404 Not Found'
         res.headers[b'Content-Type'] = b'text/plain'
         res.setbodybytes(_('do not know how to process %s\n') %
                          req.dispatchpath)
         return
 
     permission, command = urlparts[0:2]
 
     if permission not in (b'ro', b'rw'):
         res.status = b'404 Not Found'
         res.headers[b'Content-Type'] = b'text/plain'
         res.setbodybytes(_('unknown permission: %s') % permission)
         return
 
     if req.method != 'POST':
         res.status = b'405 Method Not Allowed'
         res.headers[b'Allow'] = b'POST'
         res.setbodybytes(_('commands require POST requests'))
         return
 
     # At some point we'll want to use our own API instead of recycling the
     # behavior of version 1 of the wire protocol...
     # TODO return reasonable responses - not responses that overload the
     # HTTP status line message for error reporting.
     try:
         checkperm(rctx, req, 'pull' if permission == b'ro' else 'push')
     except hgwebcommon.ErrorResponse as e:
         res.status = hgwebcommon.statusmessage(e.code, pycompat.bytestr(e))
         for k, v in e.headers:
             res.headers[k] = v
         res.setbodybytes('permission denied')
         return
 
     # We have a special endpoint to reflect the request back at the client.
     if command == b'debugreflect':
         _processhttpv2reflectrequest(rctx.repo.ui, rctx.repo, req, res)
         return
 
     # Extra commands that we handle that aren't really wire protocol
     # commands. Think extra hard before making this hackery available to
     # extension.
     extracommands = {'multirequest'}
 
     if command not in COMMANDS and command not in extracommands:
         res.status = b'404 Not Found'
         res.headers[b'Content-Type'] = b'text/plain'
         res.setbodybytes(_('unknown wire protocol command: %s\n') % command)
         return
 
     repo = rctx.repo
     ui = repo.ui
 
     proto = httpv2protocolhandler(req, ui)
 
     if (not COMMANDS.commandavailable(command, proto)
         and command not in extracommands):
         res.status = b'404 Not Found'
         res.headers[b'Content-Type'] = b'text/plain'
         res.setbodybytes(_('invalid wire protocol command: %s') % command)
         return
 
     # TODO consider cases where proxies may add additional Accept headers.
     if req.headers.get(b'Accept') != FRAMINGTYPE:
         res.status = b'406 Not Acceptable'
         res.headers[b'Content-Type'] = b'text/plain'
         res.setbodybytes(_('client MUST specify Accept header with value: %s\n')
                            % FRAMINGTYPE)
         return
 
     if req.headers.get(b'Content-Type') != FRAMINGTYPE:
         res.status = b'415 Unsupported Media Type'
         # TODO we should send a response with appropriate media type,
         # since client does Accept it.
         res.headers[b'Content-Type'] = b'text/plain'
         res.setbodybytes(_('client MUST send Content-Type header with '
                            'value: %s\n') % FRAMINGTYPE)
         return
 
     _processhttpv2request(ui, repo, req, res, permission, command, proto)
 
 def _processhttpv2reflectrequest(ui, repo, req, res):
     """Reads unified frame protocol request and dumps out state to client.
 
     This special endpoint can be used to help debug the wire protocol.
 
     Instead of routing the request through the normal dispatch mechanism,
     we instead read all frames, decode them, and feed them into our state
     tracker. We then dump the log of all that activity back out to the
     client.
     """
     import json
 
     # Reflection APIs have a history of being abused, accidentally disclosing
     # sensitive data, etc. So we have a config knob.
     if not ui.configbool('experimental', 'web.api.debugreflect'):
         res.status = b'404 Not Found'
         res.headers[b'Content-Type'] = b'text/plain'
         res.setbodybytes(_('debugreflect service not available'))
         return
 
     # We assume we have a unified framing protocol request body.
 
     reactor = wireprotoframing.serverreactor(ui)
     states = []
 
     while True:
         frame = wireprotoframing.readframe(req.bodyfh)
 
         if not frame:
             states.append(b'received: <no frame>')
             break
 
         states.append(b'received: %d %d %d %s' % (frame.typeid, frame.flags,
                                                   frame.requestid,
                                                   frame.payload))
 
         action, meta = reactor.onframerecv(frame)
         states.append(json.dumps((action, meta), sort_keys=True,
                                  separators=(', ', ': ')))
 
     action, meta = reactor.oninputeof()
     meta['action'] = action
     states.append(json.dumps(meta, sort_keys=True, separators=(', ',': ')))
 
     res.status = b'200 OK'
     res.headers[b'Content-Type'] = b'text/plain'
     res.setbodybytes(b'\n'.join(states))
 
 def _processhttpv2request(ui, repo, req, res, authedperm, reqcommand, proto):
     """Post-validation handler for HTTPv2 requests.
 
     Called when the HTTP request contains unified frame-based protocol
     frames for evaluation.
     """
     # TODO Some HTTP clients are full duplex and can receive data before
     # the entire request is transmitted. Figure out a way to indicate support
     # for that so we can opt into full duplex mode.
     reactor = wireprotoframing.serverreactor(ui, deferoutput=True)
     seencommand = False
 
     outstream = None
 
     while True:
         frame = wireprotoframing.readframe(req.bodyfh)
         if not frame:
             break
 
         action, meta = reactor.onframerecv(frame)
 
         if action == 'wantframe':
             # Need more data before we can do anything.
             continue
         elif action == 'runcommand':
             # Defer creating output stream because we need to wait for
             # protocol settings frames so proper encoding can be applied.
             if not outstream:
                 outstream = reactor.makeoutputstream()
 
             sentoutput = _httpv2runcommand(ui, repo, req, res, authedperm,
                                            reqcommand, reactor, outstream,
                                            meta, issubsequent=seencommand)
 
             if sentoutput:
                 return
 
             seencommand = True
 
         elif action == 'error':
             # TODO define proper error mechanism.
             res.status = b'200 OK'
             res.headers[b'Content-Type'] = b'text/plain'
             res.setbodybytes(meta['message'] + b'\n')
             return
         else:
             raise error.ProgrammingError(
                 'unhandled action from frame processor: %s' % action)
 
     action, meta = reactor.oninputeof()
     if action == 'sendframes':
         # We assume we haven't started sending the response yet. If we're
         # wrong, the response type will raise an exception.
         res.status = b'200 OK'
         res.headers[b'Content-Type'] = FRAMINGTYPE
         res.setbodygen(meta['framegen'])
     elif action == 'noop':
         pass
     else:
         raise error.ProgrammingError('unhandled action from frame processor: %s'
                                      % action)
 
 def _httpv2runcommand(ui, repo, req, res, authedperm, reqcommand, reactor,
                       outstream, command, issubsequent):
     """Dispatch a wire protocol command made from HTTPv2 requests.
 
     The authenticated permission (``authedperm``) along with the original
     command from the URL (``reqcommand``) are passed in.
     """
     # We already validated that the session has permissions to perform the
     # actions in ``authedperm``. In the unified frame protocol, the canonical
     # command to run is expressed in a frame. However, the URL also requested
     # to run a specific command. We need to be careful that the command we
     # run doesn't have permissions requirements greater than what was granted
     # by ``authedperm``.
     #
     # Our rule for this is we only allow one command per HTTP request and
     # that command must match the command in the URL. However, we make
     # an exception for the ``multirequest`` URL. This URL is allowed to
     # execute multiple commands. We double check permissions of each command
     # as it is invoked to ensure there is no privilege escalation.
     # TODO consider allowing multiple commands to regular command URLs
     # iff each command is the same.
 
     proto = httpv2protocolhandler(req, ui, args=command['args'])
 
     if reqcommand == b'multirequest':
         if not COMMANDS.commandavailable(command['command'], proto):
             # TODO proper error mechanism
             res.status = b'200 OK'
             res.headers[b'Content-Type'] = b'text/plain'
             res.setbodybytes(_('wire protocol command not available: %s') %
                              command['command'])
             return True
 
         # TODO don't use assert here, since it may be elided by -O.
         assert authedperm in (b'ro', b'rw')
         wirecommand = COMMANDS[command['command']]
         assert wirecommand.permission in ('push', 'pull')
 
         if authedperm == b'ro' and wirecommand.permission != 'pull':
             # TODO proper error mechanism
             res.status = b'403 Forbidden'
             res.headers[b'Content-Type'] = b'text/plain'
             res.setbodybytes(_('insufficient permissions to execute '
                                'command: %s') % command['command'])
             return True
 
         # TODO should we also call checkperm() here? Maybe not if we're going
         # to overhaul that API. The granted scope from the URL check should
         # be good enough.
 
     else:
         # Don't allow multiple commands outside of ``multirequest`` URL.
         if issubsequent:
             # TODO proper error mechanism
             res.status = b'200 OK'
             res.headers[b'Content-Type'] = b'text/plain'
             res.setbodybytes(_('multiple commands cannot be issued to this '
                                'URL'))
             return True
 
         if reqcommand != command['command']:
             # TODO define proper error mechanism
             res.status = b'200 OK'
             res.headers[b'Content-Type'] = b'text/plain'
             res.setbodybytes(_('command in frame must match command in URL'))
             return True
 
     res.status = b'200 OK'
     res.headers[b'Content-Type'] = FRAMINGTYPE
 
     try:
         objs = dispatch(repo, proto, command['command'], command['redirect'])
 
         action, meta = reactor.oncommandresponsereadyobjects(
             outstream, command['requestid'], objs)
 
     except error.WireprotoCommandError as e:
         action, meta = reactor.oncommanderror(
             outstream, command['requestid'], e.message, e.messageargs)
 
     except Exception as e:
         action, meta = reactor.onservererror(
             outstream, command['requestid'],
             _('exception when invoking command: %s') %
             stringutil.forcebytestr(e))
 
     if action == 'sendframes':
         res.setbodygen(meta['framegen'])
         return True
     elif action == 'noop':
         return False
     else:
         raise error.ProgrammingError('unhandled event from reactor: %s' %
                                      action)
 
 def getdispatchrepo(repo, proto, command):
     return repo.filtered('served')
 
 def dispatch(repo, proto, command, redirect):
     """Run a wire protocol command.
 
     Returns an iterable of objects that will be sent to the client.
     """
     repo = getdispatchrepo(repo, proto, command)
 
     entry = COMMANDS[command]
     func = entry.func
     spec = entry.args
 
     args = proto.getargs(spec)
 
     # There is some duplicate boilerplate code here for calling the command and
     # emitting objects. It is either that or a lot of indented code that looks
     # like a pyramid (since there are a lot of code paths that result in not
     # using the cacher).
     callcommand = lambda: func(repo, proto, **pycompat.strkwargs(args))
 
     # Request is not cacheable. Don't bother instantiating a cacher.
     if not entry.cachekeyfn:
         for o in callcommand():
             yield o
         return
 
     if redirect:
         redirecttargets = redirect[b'targets']
         redirecthashes = redirect[b'hashes']
     else:
         redirecttargets = []
         redirecthashes = []
 
     cacher = makeresponsecacher(repo, proto, command, args,
                                 cborutil.streamencode,
                                 redirecttargets=redirecttargets,
                                 redirecthashes=redirecthashes)
 
     # But we have no cacher. Do default handling.
     if not cacher:
         for o in callcommand():
             yield o
         return
 
     with cacher:
         cachekey = entry.cachekeyfn(repo, proto, cacher, **args)
 
         # No cache key or the cacher doesn't like it. Do default handling.
         if cachekey is None or not cacher.setcachekey(cachekey):
             for o in callcommand():
                 yield o
             return
 
         # Serve it from the cache, if possible.
         cached = cacher.lookup()
 
         if cached:
             for o in cached['objs']:
                 yield o
             return
 
         # Else call the command and feed its output into the cacher, allowing
         # the cacher to buffer/mutate objects as it desires.
         for o in callcommand():
             for o in cacher.onobject(o):
                 yield o
 
         for o in cacher.onfinished():
             yield o
 
 @interfaceutil.implementer(wireprototypes.baseprotocolhandler)
 class httpv2protocolhandler(object):
     def __init__(self, req, ui, args=None):
         self._req = req
         self._ui = ui
         self._args = args
 
     @property
     def name(self):
         return HTTP_WIREPROTO_V2
 
     def getargs(self, args):
         # First look for args that were passed but aren't registered on this
         # command.
         extra = set(self._args) - set(args)
         if extra:
             raise error.WireprotoCommandError(
                 'unsupported argument to command: %s' %
                 ', '.join(sorted(extra)))
 
         # And look for required arguments that are missing.
         missing = {a for a in args if args[a]['required']} - set(self._args)
 
         if missing:
             raise error.WireprotoCommandError(
                 'missing required arguments: %s' % ', '.join(sorted(missing)))
 
         # Now derive the arguments to pass to the command, taking into
         # account the arguments specified by the client.
         data = {}
         for k, meta in sorted(args.items()):
             # This argument wasn't passed by the client.
             if k not in self._args:
                 data[k] = meta['default']()
                 continue
 
             v = self._args[k]
 
             # Sets may be expressed as lists. Silently normalize.
             if meta['type'] == 'set' and isinstance(v, list):
                 v = set(v)
 
             # TODO consider more/stronger type validation.
 
             data[k] = v
 
         return data
 
     def getprotocaps(self):
         # Protocol capabilities are currently not implemented for HTTP V2.
         return set()
 
     def getpayload(self):
         raise NotImplementedError
 
     @contextlib.contextmanager
     def mayberedirectstdio(self):
         raise NotImplementedError
 
     def client(self):
         raise NotImplementedError
 
     def addcapabilities(self, repo, caps):
         return caps
 
     def checkperm(self, perm):
         raise NotImplementedError
 
 def httpv2apidescriptor(req, repo):
     proto = httpv2protocolhandler(req, repo.ui)
 
     return _capabilitiesv2(repo, proto)
 
 def _capabilitiesv2(repo, proto):
     """Obtain the set of capabilities for version 2 transports.
 
     These capabilities are distinct from the capabilities for version 1
     transports.
     """
     caps = {
         'commands': {},
         'framingmediatypes': [FRAMINGTYPE],
         'pathfilterprefixes': set(narrowspec.VALID_PREFIXES),
     }
 
     for command, entry in COMMANDS.items():
         args = {}
 
         for arg, meta in entry.args.items():
             args[arg] = {
                 # TODO should this be a normalized type using CBOR's
                 # terminology?
                 b'type': meta['type'],
                 b'required': meta['required'],
             }
 
             if not meta['required']:
                 args[arg][b'default'] = meta['default']()
 
             if meta['validvalues']:
                 args[arg][b'validvalues'] = meta['validvalues']
 
         caps['commands'][command] = {
             'args': args,
             'permissions': [entry.permission],
         }
 
+        if entry.extracapabilitiesfn:
+            extracaps = entry.extracapabilitiesfn(repo, proto)
+            caps['commands'][command].update(extracaps)
+
     caps['rawrepoformats'] = sorted(repo.requirements &
                                     repo.supportedformats)
 
     targets = getadvertisedredirecttargets(repo, proto)
     if targets:
         caps[b'redirect'] = {
             b'targets': [],
             b'hashes': [b'sha256', b'sha1'],
         }
 
         for target in targets:
             entry = {
                 b'name': target['name'],
                 b'protocol': target['protocol'],
                 b'uris': target['uris'],
             }
 
             for key in ('snirequired', 'tlsversions'):
                 if key in target:
                     entry[key] = target[key]
 
             caps[b'redirect'][b'targets'].append(entry)
 
     return proto.addcapabilities(repo, caps)
 
 def getadvertisedredirecttargets(repo, proto):
     """Obtain a list of content redirect targets.
 
     Returns a list containing potential redirect targets that will be
     advertised in capabilities data. Each dict MUST have the following
     keys:
 
     name
        The name of this redirect target. This is the identifier clients use
        to refer to a target. It is transferred as part of every command
        request.
 
     protocol
        Network protocol used by this target. Typically this is the string
        in front of the ``://`` in a URL. e.g. ``https``.
 
     uris
        List of representative URIs for this target. Clients can use the
        URIs to test parsing for compatibility or for ordering preference
        for which target to use.
 
     The following optional keys are recognized:
 
     snirequired
        Bool indicating if Server Name Indication (SNI) is required to
        connect to this target.
 
     tlsversions
        List of bytes indicating which TLS versions are supported by this
        target.
 
     By default, clients reflect the target order advertised by servers
     and servers will use the first client-advertised target when picking
     a redirect target. So targets should be advertised in the order the
     server prefers they be used.
     """
     return []
 
-def wireprotocommand(name, args=None, permission='push', cachekeyfn=None):
+def wireprotocommand(name, args=None, permission='push', cachekeyfn=None,
+                     extracapabilitiesfn=None):
     """Decorator to declare a wire protocol command.
 
     ``name`` is the name of the wire protocol command being provided.
 
     ``args`` is a dict defining arguments accepted by the command. Keys are
     the argument name. Values are dicts with the following keys:
 
        ``type``
           The argument data type. Must be one of the following string
           literals: ``bytes``, ``int``, ``list``, ``dict``, ``set``,
           or ``bool``.
 
        ``default``
           A callable returning the default value for this argument. If not
           specified, ``None`` will be the default value.
 
        ``example``
           An example value for this argument.
 
        ``validvalues``
           Set of recognized values for this argument.
 
     ``permission`` defines the permission type needed to run this command.
     Can be ``push`` or ``pull``. These roughly map to read-write and read-only,
     respectively. Default is to assume command requires ``push`` permissions
     because otherwise commands not declaring their permissions could modify
     a repository that is supposed to be read-only.
 
     ``cachekeyfn`` defines an optional callable that can derive the
     cache key for this request.
 
+    ``extracapabilitiesfn`` defines an optional callable that defines extra
+    command capabilities/parameters that are advertised next to the command
+    in the capabilities data structure describing the server. The callable
+    receives as arguments the repository and protocol objects. It returns
+    a dict of extra fields to add to the command descriptor.
+
     Wire protocol commands are generators of objects to be serialized and
     sent to the client.
 
     If a command raises an uncaught exception, this will be translated into
     a command error.
 
     All commands can opt in to being cacheable by defining a function
     (``cachekeyfn``) that is called to derive a cache key. This function
     receives the same arguments as the command itself plus a ``cacher``
     argument containing the active cacher for the request and returns a bytes
     containing the key in a cache the response to this command may be cached
     under.
     """
     transports = {k for k, v in wireprototypes.TRANSPORTS.items()
                   if v['version'] == 2}
 
     if permission not in ('push', 'pull'):
         raise error.ProgrammingError('invalid wire protocol permission; '
                                      'got %s; expected "push" or "pull"' %
                                      permission)
 
     if args is None:
         args = {}
 
     if not isinstance(args, dict):
         raise error.ProgrammingError('arguments for version 2 commands '
                                      'must be declared as dicts')
 
     for arg, meta in args.items():
         if arg == '*':
             raise error.ProgrammingError('* argument name not allowed on '
                                          'version 2 commands')
 
         if not isinstance(meta, dict):
             raise error.ProgrammingError('arguments for version 2 commands '
                                          'must declare metadata as a dict')
 
         if 'type' not in meta:
             raise error.ProgrammingError('%s argument for command %s does not '
                                          'declare type field' % (arg, name))
 
         if meta['type'] not in ('bytes', 'int', 'list', 'dict', 'set', 'bool'):
             raise error.ProgrammingError('%s argument for command %s has '
                                          'illegal type: %s' % (arg, name,
                                                                meta['type']))
 
         if 'example' not in meta:
             raise error.ProgrammingError('%s argument for command %s does not '
                                          'declare example field' % (arg, name))
 
         meta['required'] = 'default' not in meta
 
         meta.setdefault('default', lambda: None)
         meta.setdefault('validvalues', None)
 
     def register(func):
         if name in COMMANDS:
             raise error.ProgrammingError('%s command already registered '
                                          'for version 2' % name)
 
         COMMANDS[name] = wireprototypes.commandentry(
             func, args=args, transports=transports, permission=permission,
-            cachekeyfn=cachekeyfn)
+            cachekeyfn=cachekeyfn, extracapabilitiesfn=extracapabilitiesfn)
 
         return func
 
     return register
 
 def makecommandcachekeyfn(command, localversion=None, allargs=False):
     """Construct a cache key derivation function with common features.
 
     By default, the cache key is a hash of:
 
     * The command name.
     * A global cache version number.
     * A local cache version number (passed via ``localversion``).
     * All the arguments passed to the command.
     * The media type used.
     * Wire protocol version string.
     * The repository path.
     """
     if not allargs:
         raise error.ProgrammingError('only allargs=True is currently supported')
 
     if localversion is None:
         raise error.ProgrammingError('must set localversion argument value')
 
     def cachekeyfn(repo, proto, cacher, **args):
         spec = COMMANDS[command]
 
         # Commands that mutate the repo can not be cached.
         if spec.permission == 'push':
             return None
 
         # TODO config option to disable caching.
 
         # Our key derivation strategy is to construct a data structure
         # holding everything that could influence cacheability and to hash
         # the CBOR representation of that. Using CBOR seems like it might
         # be overkill. However, simpler hashing mechanisms are prone to
         # duplicate input issues. e.g. if you just concatenate two values,
         # "foo"+"bar" is identical to "fo"+"obar". Using CBOR provides
         # "padding" between values and prevents these problems.
 
         # Seed the hash with various data.
         state = {
             # To invalidate all cache keys.
             b'globalversion': GLOBAL_CACHE_VERSION,
             # More granular cache key invalidation.
             b'localversion': localversion,
             # Cache keys are segmented by command.
             b'command': pycompat.sysbytes(command),
             # Throw in the media type and API version strings so changes
             # to exchange semantics invalid cache.
             b'mediatype': FRAMINGTYPE,
             b'version': HTTP_WIREPROTO_V2,
             # So same requests for different repos don't share cache keys.
             b'repo': repo.root,
         }
 
         # The arguments passed to us will have already been normalized.
         # Default values will be set, etc. This is important because it
         # means that it doesn't matter if clients send an explicit argument
         # or rely on the default value: it will all normalize to the same
         # set of arguments on the server and therefore the same cache key.
         #
         # Arguments by their very nature must support being encoded to CBOR.
         # And the CBOR encoder is deterministic. So we hash the arguments
         # by feeding the CBOR of their representation into the hasher.
         if allargs:
             state[b'args'] = pycompat.byteskwargs(args)
 
         cacher.adjustcachekeystate(state)
 
         hasher = hashlib.sha1()
         for chunk in cborutil.streamencode(state):
             hasher.update(chunk)
 
         return pycompat.sysbytes(hasher.hexdigest())
 
     return cachekeyfn
 
 def makeresponsecacher(repo, proto, command, args, objencoderfn,
                        redirecttargets, redirecthashes):
     """Construct a cacher for a cacheable command.
 
     Returns an ``iwireprotocolcommandcacher`` instance.
 
     Extensions can monkeypatch this function to provide custom caching
     backends.
     """
     return None
 
 @wireprotocommand('branchmap', permission='pull')
 def branchmapv2(repo, proto):
     yield {encoding.fromlocal(k): v
            for k, v in repo.branchmap().iteritems()}
 
 @wireprotocommand('capabilities', permission='pull')
 def capabilitiesv2(repo, proto):
     yield _capabilitiesv2(repo, proto)
 
 @wireprotocommand(
     'changesetdata',
     args={
         'noderange': {
             'type': 'list',
             'default': lambda: None,
             'example': [[b'0123456...'], [b'abcdef...']],
         },
         'nodes': {
             'type': 'list',
             'default': lambda: None,
             'example': [b'0123456...'],
         },
         'nodesdepth': {
             'type': 'int',
             'default': lambda: None,
             'example': 10,
         },
         'fields': {
             'type': 'set',
             'default': set,
             'example': {b'parents', b'revision'},
             'validvalues': {b'bookmarks', b'parents', b'phase', b'revision'},
         },
     },
     permission='pull')
 def changesetdata(repo, proto, noderange, nodes, nodesdepth, fields):
     # TODO look for unknown fields and abort when they can't be serviced.
     # This could probably be validated by dispatcher using validvalues.
 
     if noderange is None and nodes is None:
         raise error.WireprotoCommandError(
             'noderange or nodes must be defined')
 
     if nodesdepth is not None and nodes is None:
         raise error.WireprotoCommandError(
             'nodesdepth requires the nodes argument')
 
     if noderange is not None:
         if len(noderange) != 2:
             raise error.WireprotoCommandError(
                 'noderange must consist of 2 elements')
 
         if not noderange[1]:
             raise error.WireprotoCommandError(
                 'heads in noderange request cannot be empty')
 
     cl = repo.changelog
     hasnode = cl.hasnode
 
     seen = set()
     outgoing = []
 
     if nodes is not None:
         outgoing = [n for n in nodes if hasnode(n)]
 
         if nodesdepth:
             outgoing = [cl.node(r) for r in
                         repo.revs(b'ancestors(%ln, %d)', outgoing,
                                   nodesdepth - 1)]
 
         seen |= set(outgoing)
 
     if noderange is not None:
         if noderange[0]:
             common = [n for n in noderange[0] if hasnode(n)]
         else:
             common = [nullid]
 
         for n in discovery.outgoing(repo, common, noderange[1]).missing:
             if n not in seen:
                 outgoing.append(n)
             # Don't need to add to seen here because this is the final
             # source of nodes and there should be no duplicates in this
             # list.
 
     seen.clear()
     publishing = repo.publishing()
 
     if outgoing:
         repo.hook('preoutgoing', throw=True, source='serve')
 
     yield {
         b'totalitems': len(outgoing),
     }
 
     # The phases of nodes already transferred to the client may have changed
     # since the client last requested data. We send phase-only records
     # for these revisions, if requested.
     if b'phase' in fields and noderange is not None:
         # TODO skip nodes whose phase will be reflected by a node in the
         # outgoing set. This is purely an optimization to reduce data
         # size.
         for node in noderange[0]:
             yield {
                 b'node': node,
                 b'phase': b'public' if publishing else repo[node].phasestr()
             }
 
     nodebookmarks = {}
     for mark, node in repo._bookmarks.items():
         nodebookmarks.setdefault(node, set()).add(mark)
 
     # It is already topologically sorted by revision number.
     for node in outgoing:
         d = {
             b'node': node,
         }
 
         if b'parents' in fields:
             d[b'parents'] = cl.parents(node)
 
         if b'phase' in fields:
             if publishing:
                 d[b'phase'] = b'public'
             else:
                 ctx = repo[node]
                 d[b'phase'] = ctx.phasestr()
 
         if b'bookmarks' in fields and node in nodebookmarks:
             d[b'bookmarks'] = sorted(nodebookmarks[node])
             del nodebookmarks[node]
 
         followingmeta = []
         followingdata = []
 
         if b'revision' in fields:
             revisiondata = cl.revision(node, raw=True)
             followingmeta.append((b'revision', len(revisiondata)))
             followingdata.append(revisiondata)
 
         # TODO make it possible for extensions to wrap a function or register
         # a handler to service custom fields.
 
         if followingmeta:
             d[b'fieldsfollowing'] = followingmeta
 
         yield d
 
         for extra in followingdata:
             yield extra
 
     # If requested, send bookmarks from nodes that didn't have revision
     # data sent so receiver is aware of any bookmark updates.
     if b'bookmarks' in fields:
         for node, marks in sorted(nodebookmarks.iteritems()):
             yield {
                 b'node': node,
                 b'bookmarks': sorted(marks),
             }
 
 class FileAccessError(Exception):
     """Represents an error accessing a specific file."""
 
     def __init__(self, path, msg, args):
         self.path = path
         self.msg = msg
         self.args = args
 
 def getfilestore(repo, proto, path):
     """Obtain a file storage object for use with wire protocol.
 
     Exists as a standalone function so extensions can monkeypatch to add
     access control.
     """
     # This seems to work even if the file doesn't exist. So catch
     # "empty" files and return an error.
     fl = repo.file(path)
 
     if not len(fl):
         raise FileAccessError(path, 'unknown file: %s', (path,))
 
     return fl
 
 @wireprotocommand(
     'filedata',
     args={
         'haveparents': {
             'type': 'bool',
             'default': lambda: False,
             'example': True,
         },
         'nodes': {
             'type': 'list',
             'example': [b'0123456...'],
         },
         'fields': {
             'type': 'set',
             'default': set,
             'example': {b'parents', b'revision'},
             'validvalues': {b'parents', b'revision'},
         },
         'path': {
             'type': 'bytes',
             'example': b'foo.txt',
         }
     },
     permission='pull',
     # TODO censoring a file revision won't invalidate the cache.
     # Figure out a way to take censoring into account when deriving
     # the cache key.
     cachekeyfn=makecommandcachekeyfn('filedata', 1, allargs=True))
 def filedata(repo, proto, haveparents, nodes, fields, path):
     try:
         # Extensions may wish to access the protocol handler.
         store = getfilestore(repo, proto, path)
     except FileAccessError as e:
         raise error.WireprotoCommandError(e.msg, e.args)
 
     # Validate requested nodes.
     for node in nodes:
         try:
             store.rev(node)
         except error.LookupError:
             raise error.WireprotoCommandError('unknown file node: %s',
                                               (hex(node),))
 
     revisions = store.emitrevisions(nodes,
                                     revisiondata=b'revision' in fields,
                                     assumehaveparentrevisions=haveparents)
 
     yield {
         b'totalitems': len(nodes),
     }
 
     for revision in revisions:
         d = {
             b'node': revision.node,
         }
 
         if b'parents' in fields:
             d[b'parents'] = [revision.p1node, revision.p2node]
 
         followingmeta = []
         followingdata = []
 
         if b'revision' in fields:
             if revision.revision is not None:
                 followingmeta.append((b'revision', len(revision.revision)))
                 followingdata.append(revision.revision)
             else:
                 d[b'deltabasenode'] = revision.basenode
                 followingmeta.append((b'delta', len(revision.delta)))
                 followingdata.append(revision.delta)
 
         if followingmeta:
             d[b'fieldsfollowing'] = followingmeta
 
         yield d
 
         for extra in followingdata:
             yield extra
 
 @wireprotocommand(
     'heads',
     args={
         'publiconly': {
             'type': 'bool',
             'default': lambda: False,
             'example': False,
         },
     },
     permission='pull')
 def headsv2(repo, proto, publiconly):
     if publiconly:
         repo = repo.filtered('immutable')
 
     yield repo.heads()
 
 @wireprotocommand(
     'known',
     args={
         'nodes': {
             'type': 'list',
             'default': list,
             'example': [b'deadbeef'],
         },
     },
     permission='pull')
 def knownv2(repo, proto, nodes):
     result = b''.join(b'1' if n else b'0' for n in repo.known(nodes))
     yield result
 
 @wireprotocommand(
     'listkeys',
     args={
         'namespace': {
             'type': 'bytes',
             'example': b'ns',
         },
     },
     permission='pull')
 def listkeysv2(repo, proto, namespace):
     keys = repo.listkeys(encoding.tolocal(namespace))
     keys = {encoding.fromlocal(k): encoding.fromlocal(v)
             for k, v in keys.iteritems()}
 
     yield keys
 
 @wireprotocommand(
     'lookup',
     args={
         'key': {
             'type': 'bytes',
             'example': b'foo',
         },
     },
     permission='pull')
 def lookupv2(repo, proto, key):
     key = encoding.tolocal(key)
 
     # TODO handle exception.
     node = repo.lookup(key)
 
     yield node
 
+def manifestdatacapabilities(repo, proto):
+    batchsize = repo.ui.configint(
+        b'experimental', b'server.manifestdata.recommended-batch-size')
+
+    return {
+        b'recommendedbatchsize': batchsize,
+    }
+
 @wireprotocommand(
     'manifestdata',
     args={
         'nodes': {
             'type': 'list',
             'example': [b'0123456...'],
         },
         'haveparents': {
             'type': 'bool',
             'default': lambda: False,
             'example': True,
         },
         'fields': {
             'type': 'set',
             'default': set,
             'example': {b'parents', b'revision'},
             'validvalues': {b'parents', b'revision'},
         },
         'tree': {
             'type': 'bytes',
             'example': b'',
         },
     },
     permission='pull',
-    cachekeyfn=makecommandcachekeyfn('manifestdata', 1, allargs=True))
+    cachekeyfn=makecommandcachekeyfn('manifestdata', 1, allargs=True),
+    extracapabilitiesfn=manifestdatacapabilities)
 def manifestdata(repo, proto, haveparents, nodes, fields, tree):
     store = repo.manifestlog.getstorage(tree)
 
     # Validate the node is known and abort on unknown revisions.
     for node in nodes:
         try:
             store.rev(node)
         except error.LookupError:
             raise error.WireprotoCommandError(
                 'unknown node: %s', (node,))
 
     revisions = store.emitrevisions(nodes,
                                     revisiondata=b'revision' in fields,
                                     assumehaveparentrevisions=haveparents)
 
     yield {
         b'totalitems': len(nodes),
     }
 
     for revision in revisions:
         d = {
             b'node': revision.node,
         }
 
         if b'parents' in fields:
             d[b'parents'] = [revision.p1node, revision.p2node]
 
         followingmeta = []
         followingdata = []
 
         if b'revision' in fields:
             if revision.revision is not None:
                 followingmeta.append((b'revision', len(revision.revision)))
                 followingdata.append(revision.revision)
             else:
                 d[b'deltabasenode'] = revision.basenode
                 followingmeta.append((b'delta', len(revision.delta)))
                 followingdata.append(revision.delta)
 
         if followingmeta:
             d[b'fieldsfollowing'] = followingmeta
 
         yield d
 
         for extra in followingdata:
             yield extra
 
 @wireprotocommand(
     'pushkey',
     args={
         'namespace': {
             'type': 'bytes',
             'example': b'ns',
         },
         'key': {
             'type': 'bytes',
             'example': b'key',
         },
         'old': {
             'type': 'bytes',
             'example': b'old',
         },
         'new': {
             'type': 'bytes',
             'example': 'new',
         },
     },
     permission='push')
 def pushkeyv2(repo, proto, namespace, key, old, new):
     # TODO handle ui output redirection
     yield repo.pushkey(encoding.tolocal(namespace),
                        encoding.tolocal(key),
                        encoding.tolocal(old),
                        encoding.tolocal(new))

tests/test-http-protocol.t

@@ -1,759 +1,759 b''
 #require no-chg
 
   $ . $TESTDIR/wireprotohelpers.sh
 
   $ cat >> $HGRCPATH << EOF
   > [web]
   > push_ssl = false
   > allow_push = *
   > EOF
 
   $ hg init server
   $ cd server
   $ touch a
   $ hg -q commit -A -m initial
   $ cd ..
 
   $ hg serve -R server -p $HGPORT -d --pid-file hg.pid
   $ cat hg.pid >> $DAEMON_PIDS
 
 compression formats are advertised in compression capability
 
 #if zstd
   $ get-with-headers.py $LOCALIP:$HGPORT '?cmd=capabilities' | tr ' ' '\n' | grep '^compression=zstd,zlib$' > /dev/null
 #else
   $ get-with-headers.py $LOCALIP:$HGPORT '?cmd=capabilities' | tr ' ' '\n' | grep '^compression=zlib$' > /dev/null
 #endif
 
   $ killdaemons.py
 
 server.compressionengines can replace engines list wholesale
 
   $ hg serve --config server.compressionengines=none -R server -p $HGPORT -d --pid-file hg.pid
   $ cat hg.pid > $DAEMON_PIDS
   $ get-with-headers.py $LOCALIP:$HGPORT '?cmd=capabilities' | tr ' ' '\n' | grep '^compression=none$' > /dev/null
 
   $ killdaemons.py
 
 Order of engines can also change
 
   $ hg serve --config server.compressionengines=none,zlib -R server -p $HGPORT -d --pid-file hg.pid
   $ cat hg.pid > $DAEMON_PIDS
   $ get-with-headers.py $LOCALIP:$HGPORT '?cmd=capabilities' | tr ' ' '\n' | grep '^compression=none,zlib$' > /dev/null
 
   $ killdaemons.py
 
 Start a default server again
 
   $ hg serve -R server -p $HGPORT -d --pid-file hg.pid
   $ cat hg.pid > $DAEMON_PIDS
 
 Server should send application/mercurial-0.1 to clients if no Accept is used
 
   $ get-with-headers.py --headeronly $LOCALIP:$HGPORT '?cmd=getbundle&heads=e93700bd72895c5addab234c56d4024b487a362f&common=0000000000000000000000000000000000000000' -
   200 Script output follows
   content-type: application/mercurial-0.1
   date: $HTTP_DATE$
   server: testing stub value
   transfer-encoding: chunked
 
 Server should send application/mercurial-0.1 when client says it wants it
 
   $ get-with-headers.py --hgproto '0.1' --headeronly $LOCALIP:$HGPORT '?cmd=getbundle&heads=e93700bd72895c5addab234c56d4024b487a362f&common=0000000000000000000000000000000000000000' -
   200 Script output follows
   content-type: application/mercurial-0.1
   date: $HTTP_DATE$
   server: testing stub value
   transfer-encoding: chunked
 
 Server should send application/mercurial-0.2 when client says it wants it
 
   $ get-with-headers.py --hgproto '0.2' --headeronly $LOCALIP:$HGPORT '?cmd=getbundle&heads=e93700bd72895c5addab234c56d4024b487a362f&common=0000000000000000000000000000000000000000' -
   200 Script output follows
   content-type: application/mercurial-0.2
   date: $HTTP_DATE$
   server: testing stub value
   transfer-encoding: chunked
 
   $ get-with-headers.py --hgproto '0.1 0.2' --headeronly $LOCALIP:$HGPORT '?cmd=getbundle&heads=e93700bd72895c5addab234c56d4024b487a362f&common=0000000000000000000000000000000000000000' -
   200 Script output follows
   content-type: application/mercurial-0.2
   date: $HTTP_DATE$
   server: testing stub value
   transfer-encoding: chunked
 
 Requesting a compression format that server doesn't support results will fall back to 0.1
 
   $ get-with-headers.py --hgproto '0.2 comp=aa' --headeronly $LOCALIP:$HGPORT '?cmd=getbundle&heads=e93700bd72895c5addab234c56d4024b487a362f&common=0000000000000000000000000000000000000000' -
   200 Script output follows
   content-type: application/mercurial-0.1
   date: $HTTP_DATE$
   server: testing stub value
   transfer-encoding: chunked
 
 #if zstd
 zstd is used if available
 
   $ get-with-headers.py --hgproto '0.2 comp=zstd' $LOCALIP:$HGPORT '?cmd=getbundle&heads=e93700bd72895c5addab234c56d4024b487a362f&common=0000000000000000000000000000000000000000' > resp
   $ f --size --hexdump --bytes 36 --sha1 resp
   resp: size=248, sha1=4d8d8f87fb82bd542ce52881fdc94f850748
   0000: 32 30 30 20 53 63 72 69 70 74 20 6f 75 74 70 75 |200 Script outpu|
   0010: 74 20 66 6f 6c 6c 6f 77 73 0a 0a 04 7a 73 74 64 |t follows...zstd|
   0020: 28 b5 2f fd                                     |(./.|
 
 #endif
 
 application/mercurial-0.2 is not yet used on non-streaming responses
 
   $ get-with-headers.py --hgproto '0.2' $LOCALIP:$HGPORT '?cmd=heads' -
   200 Script output follows
   content-length: 41
   content-type: application/mercurial-0.1
   date: $HTTP_DATE$
   server: testing stub value
   
   e93700bd72895c5addab234c56d4024b487a362f
 
 Now test protocol preference usage
 
   $ killdaemons.py
   $ hg serve --config server.compressionengines=none,zlib -R server -p $HGPORT -d --pid-file hg.pid
   $ cat hg.pid > $DAEMON_PIDS
 
 No Accept will send 0.1+zlib, even though "none" is preferred b/c "none" isn't supported on 0.1
 
   $ get-with-headers.py --headeronly $LOCALIP:$HGPORT '?cmd=getbundle&heads=e93700bd72895c5addab234c56d4024b487a362f&common=0000000000000000000000000000000000000000' Content-Type
   200 Script output follows
   content-type: application/mercurial-0.1
 
   $ get-with-headers.py $LOCALIP:$HGPORT '?cmd=getbundle&heads=e93700bd72895c5addab234c56d4024b487a362f&common=0000000000000000000000000000000000000000'  > resp
   $ f --size --hexdump --bytes 28 --sha1 resp
   resp: size=227, sha1=35a4c074da74f32f5440da3cbf04
   0000: 32 30 30 20 53 63 72 69 70 74 20 6f 75 74 70 75 |200 Script outpu|
   0010: 74 20 66 6f 6c 6c 6f 77 73 0a 0a 78             |t follows..x|
 
 Explicit 0.1 will send zlib because "none" isn't supported on 0.1
 
   $ get-with-headers.py --hgproto '0.1' $LOCALIP:$HGPORT '?cmd=getbundle&heads=e93700bd72895c5addab234c56d4024b487a362f&common=0000000000000000000000000000000000000000'  > resp
   $ f --size --hexdump --bytes 28 --sha1 resp
   resp: size=227, sha1=35a4c074da74f32f5440da3cbf04
   0000: 32 30 30 20 53 63 72 69 70 74 20 6f 75 74 70 75 |200 Script outpu|
   0010: 74 20 66 6f 6c 6c 6f 77 73 0a 0a 78             |t follows..x|
 
 0.2 with no compression will get "none" because that is server's preference
 (spec says ZL and UN are implicitly supported)
 
   $ get-with-headers.py --hgproto '0.2' $LOCALIP:$HGPORT '?cmd=getbundle&heads=e93700bd72895c5addab234c56d4024b487a362f&common=0000000000000000000000000000000000000000'  > resp
   $ f --size --hexdump --bytes 32 --sha1 resp
   resp: size=432, sha1=ac931b412ec185a02e0e5bcff98dac83
   0000: 32 30 30 20 53 63 72 69 70 74 20 6f 75 74 70 75 |200 Script outpu|
   0010: 74 20 66 6f 6c 6c 6f 77 73 0a 0a 04 6e 6f 6e 65 |t follows...none|
 
 Client receives server preference even if local order doesn't match
 
   $ get-with-headers.py --hgproto '0.2 comp=zlib,none' $LOCALIP:$HGPORT '?cmd=getbundle&heads=e93700bd72895c5addab234c56d4024b487a362f&common=0000000000000000000000000000000000000000'  > resp
   $ f --size --hexdump --bytes 32 --sha1 resp
   resp: size=432, sha1=ac931b412ec185a02e0e5bcff98dac83
   0000: 32 30 30 20 53 63 72 69 70 74 20 6f 75 74 70 75 |200 Script outpu|
   0010: 74 20 66 6f 6c 6c 6f 77 73 0a 0a 04 6e 6f 6e 65 |t follows...none|
 
 Client receives only supported format even if not server preferred format
 
   $ get-with-headers.py --hgproto '0.2 comp=zlib' $LOCALIP:$HGPORT '?cmd=getbundle&heads=e93700bd72895c5addab234c56d4024b487a362f&common=0000000000000000000000000000000000000000'  > resp
   $ f --size --hexdump --bytes 33 --sha1 resp
   resp: size=232, sha1=a1c727f0c9693ca15742a75c30419bc36
   0000: 32 30 30 20 53 63 72 69 70 74 20 6f 75 74 70 75 |200 Script outpu|
   0010: 74 20 66 6f 6c 6c 6f 77 73 0a 0a 04 7a 6c 69 62 |t follows...zlib|
   0020: 78                                              |x|
 
   $ killdaemons.py
   $ cd ..
 
 Test listkeys for listing namespaces
 
   $ hg init empty
   $ hg -R empty serve -p $HGPORT -d --pid-file hg.pid
   $ cat hg.pid > $DAEMON_PIDS
 
   $ hg --verbose debugwireproto http://$LOCALIP:$HGPORT << EOF
   > command listkeys
   >     namespace namespaces
   > EOF
   s>     GET /?cmd=capabilities HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     accept: application/mercurial-0.1\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
   s>     user-agent: Mercurial debugwireproto\r\n
   s>     \r\n
   s> makefile('rb', None)
   s>     HTTP/1.1 200 Script output follows\r\n
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     Content-Type: application/mercurial-0.1\r\n
   s>     Content-Length: *\r\n (glob)
   s>     \r\n
   s>     batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   sending listkeys command
   s>     GET /?cmd=listkeys HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     vary: X-HgArg-1,X-HgProto-1\r\n
   s>     x-hgarg-1: namespace=namespaces\r\n
   s>     x-hgproto-1: 0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull\r\n
   s>     accept: application/mercurial-0.1\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
   s>     user-agent: Mercurial debugwireproto\r\n
   s>     \r\n
   s> makefile('rb', None)
   s>     HTTP/1.1 200 Script output follows\r\n
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     Content-Type: application/mercurial-0.1\r\n
   s>     Content-Length: 30\r\n
   s>     \r\n
   s>     bookmarks\t\n
   s>     namespaces\t\n
   s>     phases\t
   response: {
     b'bookmarks': b'',
     b'namespaces': b'',
     b'phases': b''
   }
   (sent 2 HTTP requests and * bytes; received * bytes in responses) (glob)
 
 Same thing, but with "httprequest" command
 
   $ hg --verbose debugwireproto --peer raw http://$LOCALIP:$HGPORT << EOF
   > httprequest GET ?cmd=listkeys
   >     user-agent: test
   >     x-hgarg-1: namespace=namespaces
   > EOF
   using raw connection to peer
   s>     GET /?cmd=listkeys HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     user-agent: test\r\n
   s>     x-hgarg-1: namespace=namespaces\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
   s>     \r\n
   s> makefile('rb', None)
   s>     HTTP/1.1 200 Script output follows\r\n
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     Content-Type: application/mercurial-0.1\r\n
   s>     Content-Length: 30\r\n
   s>     \r\n
   s>     bookmarks\t\n
   s>     namespaces\t\n
   s>     phases\t
 
 Client with HTTPv2 enabled advertises that and gets old capabilities response from old server
 
   $ hg --config experimental.httppeer.advertise-v2=true --verbose debugwireproto http://$LOCALIP:$HGPORT << EOF
   > command heads
   > EOF
   s>     GET /?cmd=capabilities HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     vary: X-HgProto-1,X-HgUpgrade-1\r\n
   s>     x-hgproto-1: cbor\r\n
   s>     x-hgupgrade-1: exp-http-v2-0002\r\n
   s>     accept: application/mercurial-0.1\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
   s>     user-agent: Mercurial debugwireproto\r\n
   s>     \r\n
   s> makefile('rb', None)
   s>     HTTP/1.1 200 Script output follows\r\n
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     Content-Type: application/mercurial-0.1\r\n
   s>     Content-Length: *\r\n (glob)
   s>     \r\n
   s>     batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   sending heads command
   s>     GET /?cmd=heads HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     vary: X-HgProto-1\r\n
   s>     x-hgproto-1: 0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull\r\n
   s>     accept: application/mercurial-0.1\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
   s>     user-agent: Mercurial debugwireproto\r\n
   s>     \r\n
   s> makefile('rb', None)
   s>     HTTP/1.1 200 Script output follows\r\n
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     Content-Type: application/mercurial-0.1\r\n
   s>     Content-Length: 41\r\n
   s>     \r\n
   s>     0000000000000000000000000000000000000000\n
   response: [
     b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
   ]
   (sent 2 HTTP requests and * bytes; received * bytes in responses) (glob)
 
   $ killdaemons.py
   $ enablehttpv2 empty
   $ hg --config server.compressionengines=zlib -R empty serve -p $HGPORT -d --pid-file hg.pid
   $ cat hg.pid > $DAEMON_PIDS
 
 Client with HTTPv2 enabled automatically upgrades if the server supports it
 
   $ hg --config experimental.httppeer.advertise-v2=true --config experimental.httppeer.v2-encoder-order=identity --verbose debugwireproto http://$LOCALIP:$HGPORT << EOF
   > command heads
   > EOF
   s>     GET /?cmd=capabilities HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     vary: X-HgProto-1,X-HgUpgrade-1\r\n
   s>     x-hgproto-1: cbor\r\n
   s>     x-hgupgrade-1: exp-http-v2-0002\r\n
   s>     accept: application/mercurial-0.1\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
   s>     user-agent: Mercurial debugwireproto\r\n
   s>     \r\n
   s> makefile('rb', None)
   s>     HTTP/1.1 200 OK\r\n
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     Content-Type: application/mercurial-cbor\r\n
   s>     Content-Length: *\r\n (glob)
   s>     \r\n
-  s>     \xa3GapibaseDapi/Dapis\xa1Pexp-http-v2-0002\xa4Hcommands\xaaIbranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84IbookmarksGparentsEphaseHrevisionInoderange\xa3Gdefault\xf6Hrequired\xf4DtypeDlistEnodes\xa3Gdefault\xf6Hrequired\xf4DtypeDlistJnodesdepth\xa3Gdefault\xf6Hrequired\xf4DtypeCintKpermissions\x81DpullHfiledata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDpath\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullEheads\xa2Dargs\xa1Jpubliconly\xa3Gdefault\xf4Hrequired\xf4DtypeDboolKpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\xa3Gdefault\x80Hrequired\xf4DtypeDlistKpermissions\x81DpullHlistkeys\xa2Dargs\xa1Inamespace\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullFlookup\xa2Dargs\xa1Ckey\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullLmanifestdata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDtree\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullGpushkey\xa2Dargs\xa4Ckey\xa2Hrequired\xf5DtypeEbytesInamespace\xa2Hrequired\xf5DtypeEbytesCnew\xa2Hrequired\xf5DtypeEbytesCold\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpushQframingmediatypes\x81X&application/mercurial-exp-framing-0006Rpathfilterprefixes\xd9\x01\x02\x82Epath:Lrootfilesin:Nrawrepoformats\x82LgeneraldeltaHrevlogv1Nv1capabilitiesY\x01\xd3batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  s>     \xa3GapibaseDapi/Dapis\xa1Pexp-http-v2-0002\xa4Hcommands\xaaIbranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84IbookmarksGparentsEphaseHrevisionInoderange\xa3Gdefault\xf6Hrequired\xf4DtypeDlistEnodes\xa3Gdefault\xf6Hrequired\xf4DtypeDlistJnodesdepth\xa3Gdefault\xf6Hrequired\xf4DtypeCintKpermissions\x81DpullHfiledata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDpath\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullEheads\xa2Dargs\xa1Jpubliconly\xa3Gdefault\xf4Hrequired\xf4DtypeDboolKpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\xa3Gdefault\x80Hrequired\xf4DtypeDlistKpermissions\x81DpullHlistkeys\xa2Dargs\xa1Inamespace\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullFlookup\xa2Dargs\xa1Ckey\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullLmanifestdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDtree\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullTrecommendedbatchsize\x1a\x00\x01\x86\xa0Gpushkey\xa2Dargs\xa4Ckey\xa2Hrequired\xf5DtypeEbytesInamespace\xa2Hrequired\xf5DtypeEbytesCnew\xa2Hrequired\xf5DtypeEbytesCold\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpushQframingmediatypes\x81X&application/mercurial-exp-framing-0006Rpathfilterprefixes\xd9\x01\x02\x82Epath:Lrootfilesin:Nrawrepoformats\x82LgeneraldeltaHrevlogv1Nv1capabilitiesY\x01\xd3batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   sending heads command
   s>     POST /api/exp-http-v2-0002/ro/heads HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     accept: application/mercurial-exp-framing-0006\r\n
   s>     content-type: application/mercurial-exp-framing-0006\r\n
   s>     content-length: 56\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
   s>     user-agent: Mercurial debugwireproto\r\n
   s>     \r\n
   s>     \x1c\x00\x00\x01\x00\x01\x01\x82\xa1Pcontentencodings\x81Hidentity\x0c\x00\x00\x01\x00\x01\x00\x11\xa1DnameEheads
   s> makefile('rb', None)
   s>     HTTP/1.1 200 OK\r\n
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     Content-Type: application/mercurial-exp-framing-0006\r\n
   s>     Transfer-Encoding: chunked\r\n
   s>     \r\n
   s>     11\r\n
   s>     \t\x00\x00\x01\x00\x02\x01\x92
   s>     Hidentity
   s>     \r\n
   received frame(size=9; request=1; stream=2; streamflags=stream-begin; type=stream-settings; flags=eos)
   s>     13\r\n
   s>     \x0b\x00\x00\x01\x00\x02\x041
   s>     \xa1FstatusBok
   s>     \r\n
   received frame(size=11; request=1; stream=2; streamflags=encoded; type=command-response; flags=continuation)
   s>     1e\r\n
   s>     \x16\x00\x00\x01\x00\x02\x041
   s>     \x81T\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00
   s>     \r\n
   received frame(size=22; request=1; stream=2; streamflags=encoded; type=command-response; flags=continuation)
   s>     8\r\n
   s>     \x00\x00\x00\x01\x00\x02\x002
   s>     \r\n
   s>     0\r\n
   s>     \r\n
   received frame(size=0; request=1; stream=2; streamflags=; type=command-response; flags=eos)
   response: [
     b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
   ]
   (sent 2 HTTP requests and * bytes; received * bytes in responses) (glob)
 
   $ killdaemons.py
 
 HTTP client follows HTTP redirect on handshake to new repo
 
   $ cd $TESTTMP
 
   $ hg init redirector
   $ hg init redirected
   $ cd redirected
   $ touch foo
   $ hg -q commit -A -m initial
   $ cd ..
 
   $ cat > paths.conf << EOF
   > [paths]
   > / = $TESTTMP/*
   > EOF
 
   $ cat > redirectext.py << EOF
   > from mercurial import extensions, wireprotoserver
   > def wrappedcallhttp(orig, repo, req, res, proto, cmd):
   >     path = req.advertisedurl[len(req.advertisedbaseurl):]
   >     if not path.startswith(b'/redirector'):
   >         return orig(repo, req, res, proto, cmd)
   >     relpath = path[len(b'/redirector'):]
   >     res.status = b'301 Redirect'
   >     newurl = b'%s/redirected%s' % (req.baseurl, relpath)
   >     if not repo.ui.configbool('testing', 'redirectqs', True) and b'?' in newurl:
   >         newurl = newurl[0:newurl.index(b'?')]
   >     res.headers[b'Location'] = newurl
   >     res.headers[b'Content-Type'] = b'text/plain'
   >     res.setbodybytes(b'redirected')
   >     return True
   > 
   > extensions.wrapfunction(wireprotoserver, '_callhttp', wrappedcallhttp)
   > EOF
 
   $ hg --config extensions.redirect=$TESTTMP/redirectext.py \
   >    --config server.compressionengines=zlib \
   >     serve --web-conf paths.conf --pid-file hg.pid -p $HGPORT -d
   $ cat hg.pid > $DAEMON_PIDS
 
 Verify our HTTP 301 is served properly
 
   $ hg --verbose debugwireproto --peer raw http://$LOCALIP:$HGPORT << EOF
   > httprequest GET /redirector?cmd=capabilities
   >     user-agent: test
   > EOF
   using raw connection to peer
   s>     GET /redirector?cmd=capabilities HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     user-agent: test\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
   s>     \r\n
   s> makefile('rb', None)
   s>     HTTP/1.1 301 Redirect\r\n
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     Location: http://$LOCALIP:$HGPORT/redirected?cmd=capabilities\r\n (glob)
   s>     Content-Type: text/plain\r\n
   s>     Content-Length: 10\r\n
   s>     \r\n
   s>     redirected
   s>     GET /redirected?cmd=capabilities HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     user-agent: test\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
   s>     \r\n
   s> makefile('rb', None)
   s>     HTTP/1.1 200 Script output follows\r\n
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     Content-Type: application/mercurial-0.1\r\n
   s>     Content-Length: 467\r\n
   s>     \r\n
   s>     batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
 
 Test with the HTTP peer
 
   $ hg --verbose debugwireproto http://$LOCALIP:$HGPORT/redirector << EOF
   > command heads
   > EOF
   s>     GET /redirector?cmd=capabilities HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     accept: application/mercurial-0.1\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
   s>     user-agent: Mercurial debugwireproto\r\n
   s>     \r\n
   s> makefile('rb', None)
   s>     HTTP/1.1 301 Redirect\r\n
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     Location: http://$LOCALIP:$HGPORT/redirected?cmd=capabilities\r\n (glob)
   s>     Content-Type: text/plain\r\n
   s>     Content-Length: 10\r\n
   s>     \r\n
   s>     redirected
   s>     GET /redirected?cmd=capabilities HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     accept: application/mercurial-0.1\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
   s>     user-agent: Mercurial debugwireproto\r\n
   s>     \r\n
   s> makefile('rb', None)
   s>     HTTP/1.1 200 Script output follows\r\n
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     Content-Type: application/mercurial-0.1\r\n
   s>     Content-Length: 467\r\n
   s>     \r\n
   real URL is http://$LOCALIP:$HGPORT/redirected (glob)
   s>     batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   sending heads command
   s>     GET /redirected?cmd=heads HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     vary: X-HgProto-1\r\n
   s>     x-hgproto-1: 0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull\r\n
   s>     accept: application/mercurial-0.1\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
   s>     user-agent: Mercurial debugwireproto\r\n
   s>     \r\n
   s> makefile('rb', None)
   s>     HTTP/1.1 200 Script output follows\r\n
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     Content-Type: application/mercurial-0.1\r\n
   s>     Content-Length: 41\r\n
   s>     \r\n
   s>     96ee1d7354c4ad7372047672c36a1f561e3a6a4c\n
   response: [
     b'\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL'
   ]
   (sent 3 HTTP requests and * bytes; received * bytes in responses) (glob)
 
   $ killdaemons.py
 
 Now test a variation where we strip the query string from the redirect URL.
 (SCM Manager apparently did this and clients would recover from it)
 
   $ hg --config extensions.redirect=$TESTTMP/redirectext.py \
   >    --config server.compressionengines=zlib \
   >    --config testing.redirectqs=false \
   >     serve --web-conf paths.conf --pid-file hg.pid -p $HGPORT -d
   $ cat hg.pid > $DAEMON_PIDS
 
   $ hg --verbose debugwireproto --peer raw http://$LOCALIP:$HGPORT << EOF
   > httprequest GET /redirector?cmd=capabilities
   >     user-agent: test
   > EOF
   using raw connection to peer
   s>     GET /redirector?cmd=capabilities HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     user-agent: test\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
   s>     \r\n
   s> makefile('rb', None)
   s>     HTTP/1.1 301 Redirect\r\n
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     Location: http://$LOCALIP:$HGPORT/redirected\r\n (glob)
   s>     Content-Type: text/plain\r\n
   s>     Content-Length: 10\r\n
   s>     \r\n
   s>     redirected
   s>     GET /redirected HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     user-agent: test\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
   s>     \r\n
   s> makefile('rb', None)
   s>     HTTP/1.1 200 Script output follows\r\n
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     ETag: W/"*"\r\n (glob)
   s>     Content-Type: text/html; charset=ascii\r\n
   s>     Transfer-Encoding: chunked\r\n
   s>     \r\n
   s>     414\r\n
   s>     <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">\n
   s>     <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US">\n
   s>     <head>\n
   s>     <link rel="icon" href="/redirected/static/hgicon.png" type="image/png" />\n
   s>     <meta name="robots" content="index, nofollow" />\n
   s>     <link rel="stylesheet" href="/redirected/static/style-paper.css" type="text/css" />\n
   s>     <script type="text/javascript" src="/redirected/static/mercurial.js"></script>\n
   s>     \n
   s>     <title>redirected: log</title>\n
   s>     <link rel="alternate" type="application/atom+xml"\n
   s>        href="/redirected/atom-log" title="Atom feed for redirected" />\n
   s>     <link rel="alternate" type="application/rss+xml"\n
   s>        href="/redirected/rss-log" title="RSS feed for redirected" />\n
   s>     </head>\n
   s>     <body>\n
   s>     \n
   s>     <div class="container">\n
   s>     <div class="menu">\n
   s>     <div class="logo">\n
   s>     <a href="https://mercurial-scm.org/">\n
   s>     <img src="/redirected/static/hglogo.png" alt="mercurial" /></a>\n
   s>     </div>\n
   s>     <ul>\n
   s>     <li class="active">log</li>\n
   s>     <li><a href="/redirected/graph/tip">graph</a></li>\n
   s>     <li><a href="/redirected/tags">tags</a></li>\n
   s>     <li><a href="
   s>     \r\n
   s>     810\r\n
   s>     /redirected/bookmarks">bookmarks</a></li>\n
   s>     <li><a href="/redirected/branches">branches</a></li>\n
   s>     </ul>\n
   s>     <ul>\n
   s>     <li><a href="/redirected/rev/tip">changeset</a></li>\n
   s>     <li><a href="/redirected/file/tip">browse</a></li>\n
   s>     </ul>\n
   s>     <ul>\n
   s>     \n
   s>     </ul>\n
   s>     <ul>\n
   s>      <li><a href="/redirected/help">help</a></li>\n
   s>     </ul>\n
   s>     <div class="atom-logo">\n
   s>     <a href="/redirected/atom-log" title="subscribe to atom feed">\n
   s>     <img class="atom-logo" src="/redirected/static/feed-icon-14x14.png" alt="atom feed" />\n
   s>     </a>\n
   s>     </div>\n
   s>     </div>\n
   s>     \n
   s>     <div class="main">\n
   s>     <h2 class="breadcrumb"><a href="/">Mercurial</a> &gt; <a href="/redirected">redirected</a> </h2>\n
   s>     <h3>log</h3>\n
   s>     \n
   s>     \n
   s>     <form class="search" action="/redirected/log">\n
   s>     \n
   s>     <p><input name="rev" id="search1" type="text" size="30" value="" /></p>\n
   s>     <div id="hint">Find changesets by keywords (author, files, the commit message), revision\n
   s>     number or hash, or <a href="/redirected/help/revsets">revset expression</a>.</div>\n
   s>     </form>\n
   s>     \n
   s>     <div class="navigate">\n
   s>     <a href="/redirected/shortlog/tip?revcount=30">less</a>\n
   s>     <a href="/redirected/shortlog/tip?revcount=120">more</a>\n
   s>     | rev 0: <a href="/redirected/shortlog/96ee1d7354c4">(0)</a> <a href="/redirected/shortlog/tip">tip</a> \n
   s>     </div>\n
   s>     \n
   s>     <table class="bigtable">\n
   s>     <thead>\n
   s>      <tr>\n
   s>       <th class="age">age</th>\n
   s>       <th class="author">author</th>\n
   s>       <th class="description">description</th>\n
   s>      </tr>\n
   s>     </thead>\n
   s>     <tbody class="stripes2">\n
   s>      <tr>\n
   s>       <td class="age">Thu, 01 Jan 1970 00:00:00 +0000</td>\n
   s>       <td class="author">test</td>\n
   s>       <td class="description">\n
   s>        <a href="/redirected/rev/96ee1d7354c4">initial</a>\n
   s>        <span class="phase">draft</span> <span class="branchhead">default</span> <span class="tag">tip</span> \n
   s>       </td>\n
   s>      </tr>\n
   s>     \n
   s>     </tbody>\n
   s>     </table>\n
   s>     \n
   s>     <div class="navigate">\n
   s>     <a href="/redirected/shortlog/tip?revcount=30">less</a>\n
   s>     <a href="/redirected/shortlog/tip?revcount=120">more</a>\n
   s>     | rev 0: <a href="/redirected/shortlog/96ee1d7354c4">(0)</a> <a href="/redirected/shortlog/tip">tip</a> \n
   s>     </div>\n
   s>     \n
   s>     <script type="text/javascript">\n
   s>         ajaxScrollInit(\n
   s>                 \'/redirected/shortlog/%next%\',\n
   s>                 \'\', <!-- NEXTHASH\n
   s>                 function (htmlText) {
   s>     \r\n
   s>     14a\r\n
   s>     \n
   s>                     var m = htmlText.match(/\'(\\w+)\', <!-- NEXTHASH/);\n
   s>                     return m ? m[1] : null;\n
   s>                 },\n
   s>                 \'.bigtable > tbody\',\n
   s>                 \'<tr class="%class%">\\\n
   s>                 <td colspan="3" style="text-align: center;">%text%</td>\\\n
   s>                 </tr>\'\n
   s>         );\n
   s>     </script>\n
   s>     \n
   s>     </div>\n
   s>     </div>\n
   s>     \n
   s>     \n
   s>     \n
   s>     </body>\n
   s>     </html>\n
   s>     \n
   s>     \r\n
   s>     0\r\n
   s>     \r\n
 
   $ hg --verbose debugwireproto http://$LOCALIP:$HGPORT/redirector << EOF
   > command heads
   > EOF
   s>     GET /redirector?cmd=capabilities HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     accept: application/mercurial-0.1\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
   s>     user-agent: Mercurial debugwireproto\r\n
   s>     \r\n
   s> makefile('rb', None)
   s>     HTTP/1.1 301 Redirect\r\n
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     Location: http://$LOCALIP:$HGPORT/redirected\r\n (glob)
   s>     Content-Type: text/plain\r\n
   s>     Content-Length: 10\r\n
   s>     \r\n
   s>     redirected
   s>     GET /redirected HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     accept: application/mercurial-0.1\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
   s>     user-agent: Mercurial debugwireproto\r\n
   s>     \r\n
   s> makefile('rb', None)
   s>     HTTP/1.1 200 Script output follows\r\n
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     ETag: W/"*"\r\n (glob)
   s>     Content-Type: text/html; charset=ascii\r\n
   s>     Transfer-Encoding: chunked\r\n
   s>     \r\n
   real URL is http://$LOCALIP:$HGPORT/redirected (glob)
   s>     414\r\n
   s>     <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">\n
   s>     <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US">\n
   s>     <head>\n
   s>     <link rel="icon" href="/redirected/static/hgicon.png" type="image/png" />\n
   s>     <meta name="robots" content="index, nofollow" />\n
   s>     <link rel="stylesheet" href="/redirected/static/style-paper.css" type="text/css" />\n
   s>     <script type="text/javascript" src="/redirected/static/mercurial.js"></script>\n
   s>     \n
   s>     <title>redirected: log</title>\n
   s>     <link rel="alternate" type="application/atom+xml"\n
   s>        href="/redirected/atom-log" title="Atom feed for redirected" />\n
   s>     <link rel="alternate" type="application/rss+xml"\n
   s>        href="/redirected/rss-log" title="RSS feed for redirected" />\n
   s>     </head>\n
   s>     <body>\n
   s>     \n
   s>     <div class="container">\n
   s>     <div class="menu">\n
   s>     <div class="logo">\n
   s>     <a href="https://mercurial-scm.org/">\n
   s>     <img src="/redirected/static/hglogo.png" alt="mercurial" /></a>\n
   s>     </div>\n
   s>     <ul>\n
   s>     <li class="active">log</li>\n
   s>     <li><a href="/redirected/graph/tip">graph</a></li>\n
   s>     <li><a href="/redirected/tags">tags</a
   s>     GET /redirected?cmd=capabilities HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     accept: application/mercurial-0.1\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
   s>     user-agent: Mercurial debugwireproto\r\n
   s>     \r\n
   s> makefile('rb', None)
   s>     HTTP/1.1 200 Script output follows\r\n
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     Content-Type: application/mercurial-0.1\r\n
   s>     Content-Length: 467\r\n
   s>     \r\n
   real URL is http://$LOCALIP:$HGPORT/redirected (glob)
   s>     batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   sending heads command
   s>     GET /redirected?cmd=heads HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     vary: X-HgProto-1\r\n
   s>     x-hgproto-1: 0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull\r\n
   s>     accept: application/mercurial-0.1\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
   s>     user-agent: Mercurial debugwireproto\r\n
   s>     \r\n
   s> makefile('rb', None)
   s>     HTTP/1.1 200 Script output follows\r\n
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     Content-Type: application/mercurial-0.1\r\n
   s>     Content-Length: 41\r\n
   s>     \r\n
   s>     96ee1d7354c4ad7372047672c36a1f561e3a6a4c\n
   response: [
     b'\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL'
   ]
   (sent 4 HTTP requests and * bytes; received * bytes in responses) (glob)

tests/test-wireproto-caching.t

@@ -1,422 +1,423 b''
   $ . $TESTDIR/wireprotohelpers.sh
   $ cat >> $HGRCPATH << EOF
   > [extensions]
   > blackbox =
   > [blackbox]
   > track = simplecache
   > EOF
   $ hg init server
   $ enablehttpv2 server
   $ cd server
   $ cat >> .hg/hgrc << EOF
   > [extensions]
   > simplecache = $TESTDIR/wireprotosimplecache.py
   > EOF
 
   $ echo a0 > a
   $ echo b0 > b
   $ hg -q commit -A -m 'commit 0'
   $ echo a1 > a
   $ hg commit -m 'commit 1'
   $ echo b1 > b
   $ hg commit -m 'commit 2'
   $ echo a2 > a
   $ echo b2 > b
   $ hg commit -m 'commit 3'
 
   $ hg log -G -T '{rev}:{node} {desc}'
   @  3:50590a86f3ff5d1e9a1624a7a6957884565cc8e8 commit 3
   |
   o  2:4d01eda50c6ac5f7e89cbe1880143a32f559c302 commit 2
   |
   o  1:4432d83626e8a98655f062ec1f2a43b07f7fbbb0 commit 1
   |
   o  0:3390ef850073fbc2f0dfff2244342c8e9229013a commit 0
   
 
   $ hg --debug debugindex -m
      rev linkrev nodeid                                   p1                                       p2
        0       0 992f4779029a3df8d0666d00bb924f69634e2641 0000000000000000000000000000000000000000 0000000000000000000000000000000000000000
        1       1 a988fb43583e871d1ed5750ee074c6d840bbbfc8 992f4779029a3df8d0666d00bb924f69634e2641 0000000000000000000000000000000000000000
        2       2 a8853dafacfca6fc807055a660d8b835141a3bb4 a988fb43583e871d1ed5750ee074c6d840bbbfc8 0000000000000000000000000000000000000000
        3       3 3fe11dfbb13645782b0addafbe75a87c210ffddc a8853dafacfca6fc807055a660d8b835141a3bb4 0000000000000000000000000000000000000000
 
   $ hg serve -p $HGPORT -d --pid-file hg.pid -E error.log
   $ cat hg.pid > $DAEMON_PIDS
 
 Performing the same request should result in same result, with 2nd response
 coming from cache.
 
   $ sendhttpv2peer << EOF
   > command manifestdata
   >     nodes eval:[b'\x99\x2f\x47\x79\x02\x9a\x3d\xf8\xd0\x66\x6d\x00\xbb\x92\x4f\x69\x63\x4e\x26\x41']
   >     tree eval:b''
   >     fields eval:[b'parents']
   > EOF
   creating http peer for wire protocol version 2
   sending manifestdata command
   response: gen[
     {
       b'totalitems': 1
     },
     {
       b'node': b'\x99/Gy\x02\x9a=\xf8\xd0fm\x00\xbb\x92OicN&A',
       b'parents': [
         b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00',
         b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
       ]
     }
   ]
 
   $ sendhttpv2peer << EOF
   > command manifestdata
   >     nodes eval:[b'\x99\x2f\x47\x79\x02\x9a\x3d\xf8\xd0\x66\x6d\x00\xbb\x92\x4f\x69\x63\x4e\x26\x41']
   >     tree eval:b''
   >     fields eval:[b'parents']
   > EOF
   creating http peer for wire protocol version 2
   sending manifestdata command
   response: gen[
     {
       b'totalitems': 1
     },
     {
       b'node': b'\x99/Gy\x02\x9a=\xf8\xd0fm\x00\xbb\x92OicN&A',
       b'parents': [
         b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00',
         b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
       ]
     }
   ]
 
 Sending different request doesn't yield cache hit.
 
   $ sendhttpv2peer << EOF
   > command manifestdata
   >     nodes eval:[b'\x99\x2f\x47\x79\x02\x9a\x3d\xf8\xd0\x66\x6d\x00\xbb\x92\x4f\x69\x63\x4e\x26\x41', b'\xa9\x88\xfb\x43\x58\x3e\x87\x1d\x1e\xd5\x75\x0e\xe0\x74\xc6\xd8\x40\xbb\xbf\xc8']
   >     tree eval:b''
   >     fields eval:[b'parents']
   > EOF
   creating http peer for wire protocol version 2
   sending manifestdata command
   response: gen[
     {
       b'totalitems': 2
     },
     {
       b'node': b'\x99/Gy\x02\x9a=\xf8\xd0fm\x00\xbb\x92OicN&A',
       b'parents': [
         b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00',
         b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
       ]
     },
     {
       b'node': b'\xa9\x88\xfbCX>\x87\x1d\x1e\xd5u\x0e\xe0t\xc6\xd8@\xbb\xbf\xc8',
       b'parents': [
         b'\x99/Gy\x02\x9a=\xf8\xd0fm\x00\xbb\x92OicN&A',
         b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
       ]
     }
   ]
 
   $ cat .hg/blackbox.log
   *> cacher constructed for manifestdata (glob)
   *> cache miss for 64b3162af49ea3c88e8ce2785e03ed7b88a2d6ca (glob)
   *> storing cache entry for 64b3162af49ea3c88e8ce2785e03ed7b88a2d6ca (glob)
   *> cacher constructed for manifestdata (glob)
   *> cache hit for 64b3162af49ea3c88e8ce2785e03ed7b88a2d6ca (glob)
   *> cacher constructed for manifestdata (glob)
   *> cache miss for 1cf89363ec234c6b92d5961281eaa5713e7493f9 (glob)
   *> storing cache entry for 1cf89363ec234c6b92d5961281eaa5713e7493f9 (glob)
 
   $ cat error.log
 
   $ killdaemons.py
   $ rm .hg/blackbox.log
 
 Try with object caching mode
 
   $ cat >> .hg/hgrc << EOF
   > [simplecache]
   > cacheobjects = true
   > EOF
 
   $ hg serve -p $HGPORT -d --pid-file hg.pid -E error.log
   $ cat hg.pid > $DAEMON_PIDS
 
   $ sendhttpv2peer << EOF
   > command manifestdata
   >     nodes eval:[b'\x99\x2f\x47\x79\x02\x9a\x3d\xf8\xd0\x66\x6d\x00\xbb\x92\x4f\x69\x63\x4e\x26\x41']
   >     tree eval:b''
   >     fields eval:[b'parents']
   > EOF
   creating http peer for wire protocol version 2
   sending manifestdata command
   response: gen[
     {
       b'totalitems': 1
     },
     {
       b'node': b'\x99/Gy\x02\x9a=\xf8\xd0fm\x00\xbb\x92OicN&A',
       b'parents': [
         b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00',
         b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
       ]
     }
   ]
 
   $ sendhttpv2peer << EOF
   > command manifestdata
   >     nodes eval:[b'\x99\x2f\x47\x79\x02\x9a\x3d\xf8\xd0\x66\x6d\x00\xbb\x92\x4f\x69\x63\x4e\x26\x41']
   >     tree eval:b''
   >     fields eval:[b'parents']
   > EOF
   creating http peer for wire protocol version 2
   sending manifestdata command
   response: gen[
     {
       b'totalitems': 1
     },
     {
       b'node': b'\x99/Gy\x02\x9a=\xf8\xd0fm\x00\xbb\x92OicN&A',
       b'parents': [
         b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00',
         b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
       ]
     }
   ]
 
   $ cat .hg/blackbox.log
   *> cacher constructed for manifestdata (glob)
   *> cache miss for 64b3162af49ea3c88e8ce2785e03ed7b88a2d6ca (glob)
   *> storing cache entry for 64b3162af49ea3c88e8ce2785e03ed7b88a2d6ca (glob)
   *> cacher constructed for manifestdata (glob)
   *> cache hit for 64b3162af49ea3c88e8ce2785e03ed7b88a2d6ca (glob)
 
   $ cat error.log
 
   $ killdaemons.py
   $ rm .hg/blackbox.log
 
 A non-cacheable command does not instantiate cacher
 
   $ hg serve -p $HGPORT -d --pid-file hg.pid -E error.log
   $ cat hg.pid > $DAEMON_PIDS
   $ sendhttpv2peer << EOF
   > command capabilities
   > EOF
   creating http peer for wire protocol version 2
   sending capabilities command
   response: gen[
     {
       b'commands': {
         b'branchmap': {
           b'args': {},
           b'permissions': [
             b'pull'
           ]
         },
         b'capabilities': {
           b'args': {},
           b'permissions': [
             b'pull'
           ]
         },
         b'changesetdata': {
           b'args': {
             b'fields': {
               b'default': set([]),
               b'required': False,
               b'type': b'set',
               b'validvalues': set([
                 b'bookmarks',
                 b'parents',
                 b'phase',
                 b'revision'
               ])
             },
             b'noderange': {
               b'default': None,
               b'required': False,
               b'type': b'list'
             },
             b'nodes': {
               b'default': None,
               b'required': False,
               b'type': b'list'
             },
             b'nodesdepth': {
               b'default': None,
               b'required': False,
               b'type': b'int'
             }
           },
           b'permissions': [
             b'pull'
           ]
         },
         b'filedata': {
           b'args': {
             b'fields': {
               b'default': set([]),
               b'required': False,
               b'type': b'set',
               b'validvalues': set([
                 b'parents',
                 b'revision'
               ])
             },
             b'haveparents': {
               b'default': False,
               b'required': False,
               b'type': b'bool'
             },
             b'nodes': {
               b'required': True,
               b'type': b'list'
             },
             b'path': {
               b'required': True,
               b'type': b'bytes'
             }
           },
           b'permissions': [
             b'pull'
           ]
         },
         b'heads': {
           b'args': {
             b'publiconly': {
               b'default': False,
               b'required': False,
               b'type': b'bool'
             }
           },
           b'permissions': [
             b'pull'
           ]
         },
         b'known': {
           b'args': {
             b'nodes': {
               b'default': [],
               b'required': False,
               b'type': b'list'
             }
           },
           b'permissions': [
             b'pull'
           ]
         },
         b'listkeys': {
           b'args': {
             b'namespace': {
               b'required': True,
               b'type': b'bytes'
             }
           },
           b'permissions': [
             b'pull'
           ]
         },
         b'lookup': {
           b'args': {
             b'key': {
               b'required': True,
               b'type': b'bytes'
             }
           },
           b'permissions': [
             b'pull'
           ]
         },
         b'manifestdata': {
           b'args': {
             b'fields': {
               b'default': set([]),
               b'required': False,
               b'type': b'set',
               b'validvalues': set([
                 b'parents',
                 b'revision'
               ])
             },
             b'haveparents': {
               b'default': False,
               b'required': False,
               b'type': b'bool'
             },
             b'nodes': {
               b'required': True,
               b'type': b'list'
             },
             b'tree': {
               b'required': True,
               b'type': b'bytes'
             }
           },
           b'permissions': [
             b'pull'
-          ]
+          ],
+          b'recommendedbatchsize': 100000
         },
         b'pushkey': {
           b'args': {
             b'key': {
               b'required': True,
               b'type': b'bytes'
             },
             b'namespace': {
               b'required': True,
               b'type': b'bytes'
             },
             b'new': {
               b'required': True,
               b'type': b'bytes'
             },
             b'old': {
               b'required': True,
               b'type': b'bytes'
             }
           },
           b'permissions': [
             b'push'
           ]
         }
       },
       b'framingmediatypes': [
         b'application/mercurial-exp-framing-0006'
       ],
       b'pathfilterprefixes': set([
         b'path:',
         b'rootfilesin:'
       ]),
       b'rawrepoformats': [
         b'generaldelta',
         b'revlogv1'
       ]
     }
   ]
 
   $ test -f .hg/blackbox.log
   [1]
 
 An error is not cached
 
   $ sendhttpv2peer << EOF
   > command manifestdata
   >     nodes eval:[b'\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa']
   >     tree eval:b''
   >     fields eval:[b'parents']
   > EOF
   creating http peer for wire protocol version 2
   sending manifestdata command
   abort: unknown node: \xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa! (esc)
   [255]
 
   $ cat .hg/blackbox.log
   *> cacher constructed for manifestdata (glob)
   *> cache miss for 904560928eb95650358f0829d9399b256822eb26 (glob)
   *> cacher exiting due to error (glob)
 
   $ killdaemons.py
   $ rm .hg/blackbox.log

tests/test-wireproto-command-capabilities.t

@@ -1,668 +1,670 b''
 #require no-chg
 
   $ . $TESTDIR/wireprotohelpers.sh
 
   $ hg init server
 
 zstd isn't present in plain builds. Make tests easier by removing
 zstd from the equation.
 
   $ cat >> server/.hg/hgrc << EOF
   > [server]
   > compressionengines = zlib
   > EOF
 
   $ hg -R server serve -p $HGPORT -d --pid-file hg.pid -E error.log
   $ cat hg.pid > $DAEMON_PIDS
 
 A normal capabilities request is serviced for version 1
 
   $ sendhttpraw << EOF
   > httprequest GET ?cmd=capabilities
   >     user-agent: test
   > EOF
   using raw connection to peer
   s>     GET /?cmd=capabilities HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     user-agent: test\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
   s>     \r\n
   s> makefile('rb', None)
   s>     HTTP/1.1 200 Script output follows\r\n
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     Content-Type: application/mercurial-0.1\r\n
   s>     Content-Length: *\r\n (glob)
   s>     \r\n
   s>     batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
 
 A proper request without the API server enabled returns the legacy response
 
   $ sendhttpraw << EOF
   > httprequest GET ?cmd=capabilities
   >    user-agent: test
   >    x-hgupgrade-1: foo
   >    x-hgproto-1: cbor
   > EOF
   using raw connection to peer
   s>     GET /?cmd=capabilities HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     user-agent: test\r\n
   s>     x-hgproto-1: cbor\r\n
   s>     x-hgupgrade-1: foo\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
   s>     \r\n
   s> makefile('rb', None)
   s>     HTTP/1.1 200 Script output follows\r\n
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     Content-Type: application/mercurial-0.1\r\n
   s>     Content-Length: *\r\n (glob)
   s>     \r\n
   s>     batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
 
 Restart with just API server enabled. This enables serving the new format.
 
   $ killdaemons.py
   $ cat error.log
 
   $ cat >> server/.hg/hgrc << EOF
   > [experimental]
   > web.apiserver = true
   > EOF
 
   $ hg -R server serve -p $HGPORT -d --pid-file hg.pid -E error.log
   $ cat hg.pid > $DAEMON_PIDS
 
 X-HgUpgrade-<N> without CBOR advertisement uses legacy response
 
   $ sendhttpraw << EOF
   > httprequest GET ?cmd=capabilities
   >    user-agent: test
   >    x-hgupgrade-1: foo bar
   > EOF
   using raw connection to peer
   s>     GET /?cmd=capabilities HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     user-agent: test\r\n
   s>     x-hgupgrade-1: foo bar\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
   s>     \r\n
   s> makefile('rb', None)
   s>     HTTP/1.1 200 Script output follows\r\n
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     Content-Type: application/mercurial-0.1\r\n
   s>     Content-Length: *\r\n (glob)
   s>     \r\n
   s>     batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
 
 X-HgUpgrade-<N> without known serialization in X-HgProto-<N> uses legacy response
 
   $ sendhttpraw << EOF
   > httprequest GET ?cmd=capabilities
   >    user-agent: test
   >    x-hgupgrade-1: foo bar
   >    x-hgproto-1: some value
   > EOF
   using raw connection to peer
   s>     GET /?cmd=capabilities HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     user-agent: test\r\n
   s>     x-hgproto-1: some value\r\n
   s>     x-hgupgrade-1: foo bar\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
   s>     \r\n
   s> makefile('rb', None)
   s>     HTTP/1.1 200 Script output follows\r\n
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     Content-Type: application/mercurial-0.1\r\n
   s>     Content-Length: *\r\n (glob)
   s>     \r\n
   s>     batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
 
 X-HgUpgrade-<N> + X-HgProto-<N> headers trigger new response format
 
   $ sendhttpraw << EOF
   > httprequest GET ?cmd=capabilities
   >    user-agent: test
   >    x-hgupgrade-1: foo bar
   >    x-hgproto-1: cbor
   > EOF
   using raw connection to peer
   s>     GET /?cmd=capabilities HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     user-agent: test\r\n
   s>     x-hgproto-1: cbor\r\n
   s>     x-hgupgrade-1: foo bar\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
   s>     \r\n
   s> makefile('rb', None)
   s>     HTTP/1.1 200 OK\r\n
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     Content-Type: application/mercurial-cbor\r\n
   s>     Content-Length: *\r\n (glob)
   s>     \r\n
   s>     \xa3GapibaseDapi/Dapis\xa0Nv1capabilitiesY\x01\xd3batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   cbor> [
     {
       b'apibase': b'api/',
       b'apis': {},
       b'v1capabilities': b'batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash'
     }
   ]
 
 Restart server to enable HTTPv2
 
   $ killdaemons.py
   $ enablehttpv2 server
   $ hg -R server serve -p $HGPORT -d --pid-file hg.pid -E error.log
   $ cat hg.pid > $DAEMON_PIDS
 
 Only requested API services are returned
 
   $ sendhttpraw << EOF
   > httprequest GET ?cmd=capabilities
   >    user-agent: test
   >    x-hgupgrade-1: foo bar
   >    x-hgproto-1: cbor
   > EOF
   using raw connection to peer
   s>     GET /?cmd=capabilities HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     user-agent: test\r\n
   s>     x-hgproto-1: cbor\r\n
   s>     x-hgupgrade-1: foo bar\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
   s>     \r\n
   s> makefile('rb', None)
   s>     HTTP/1.1 200 OK\r\n
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     Content-Type: application/mercurial-cbor\r\n
   s>     Content-Length: *\r\n (glob)
   s>     \r\n
   s>     \xa3GapibaseDapi/Dapis\xa0Nv1capabilitiesY\x01\xd3batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   cbor> [
     {
       b'apibase': b'api/',
       b'apis': {},
       b'v1capabilities': b'batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash'
     }
   ]
 
 Request for HTTPv2 service returns information about it
 
   $ sendhttpraw << EOF
   > httprequest GET ?cmd=capabilities
   >    user-agent: test
   >    x-hgupgrade-1: exp-http-v2-0002 foo bar
   >    x-hgproto-1: cbor
   > EOF
   using raw connection to peer
   s>     GET /?cmd=capabilities HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     user-agent: test\r\n
   s>     x-hgproto-1: cbor\r\n
   s>     x-hgupgrade-1: exp-http-v2-0002 foo bar\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
   s>     \r\n
   s> makefile('rb', None)
   s>     HTTP/1.1 200 OK\r\n
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     Content-Type: application/mercurial-cbor\r\n
   s>     Content-Length: *\r\n (glob)
   s>     \r\n
-  s>     \xa3GapibaseDapi/Dapis\xa1Pexp-http-v2-0002\xa4Hcommands\xaaIbranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84IbookmarksGparentsEphaseHrevisionInoderange\xa3Gdefault\xf6Hrequired\xf4DtypeDlistEnodes\xa3Gdefault\xf6Hrequired\xf4DtypeDlistJnodesdepth\xa3Gdefault\xf6Hrequired\xf4DtypeCintKpermissions\x81DpullHfiledata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDpath\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullEheads\xa2Dargs\xa1Jpubliconly\xa3Gdefault\xf4Hrequired\xf4DtypeDboolKpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\xa3Gdefault\x80Hrequired\xf4DtypeDlistKpermissions\x81DpullHlistkeys\xa2Dargs\xa1Inamespace\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullFlookup\xa2Dargs\xa1Ckey\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullLmanifestdata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDtree\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullGpushkey\xa2Dargs\xa4Ckey\xa2Hrequired\xf5DtypeEbytesInamespace\xa2Hrequired\xf5DtypeEbytesCnew\xa2Hrequired\xf5DtypeEbytesCold\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpushQframingmediatypes\x81X&application/mercurial-exp-framing-0006Rpathfilterprefixes\xd9\x01\x02\x82Epath:Lrootfilesin:Nrawrepoformats\x82LgeneraldeltaHrevlogv1Nv1capabilitiesY\x01\xd3batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  s>     \xa3GapibaseDapi/Dapis\xa1Pexp-http-v2-0002\xa4Hcommands\xaaIbranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84IbookmarksGparentsEphaseHrevisionInoderange\xa3Gdefault\xf6Hrequired\xf4DtypeDlistEnodes\xa3Gdefault\xf6Hrequired\xf4DtypeDlistJnodesdepth\xa3Gdefault\xf6Hrequired\xf4DtypeCintKpermissions\x81DpullHfiledata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDpath\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullEheads\xa2Dargs\xa1Jpubliconly\xa3Gdefault\xf4Hrequired\xf4DtypeDboolKpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\xa3Gdefault\x80Hrequired\xf4DtypeDlistKpermissions\x81DpullHlistkeys\xa2Dargs\xa1Inamespace\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullFlookup\xa2Dargs\xa1Ckey\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullLmanifestdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDtree\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullTrecommendedbatchsize\x1a\x00\x01\x86\xa0Gpushkey\xa2Dargs\xa4Ckey\xa2Hrequired\xf5DtypeEbytesInamespace\xa2Hrequired\xf5DtypeEbytesCnew\xa2Hrequired\xf5DtypeEbytesCold\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpushQframingmediatypes\x81X&application/mercurial-exp-framing-0006Rpathfilterprefixes\xd9\x01\x02\x82Epath:Lrootfilesin:Nrawrepoformats\x82LgeneraldeltaHrevlogv1Nv1capabilitiesY\x01\xd3batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   cbor> [
     {
       b'apibase': b'api/',
       b'apis': {
         b'exp-http-v2-0002': {
           b'commands': {
             b'branchmap': {
               b'args': {},
               b'permissions': [
                 b'pull'
               ]
             },
             b'capabilities': {
               b'args': {},
               b'permissions': [
                 b'pull'
               ]
             },
             b'changesetdata': {
               b'args': {
                 b'fields': {
                   b'default': set([]),
                   b'required': False,
                   b'type': b'set',
                   b'validvalues': set([
                     b'bookmarks',
                     b'parents',
                     b'phase',
                     b'revision'
                   ])
                 },
                 b'noderange': {
                   b'default': None,
                   b'required': False,
                   b'type': b'list'
                 },
                 b'nodes': {
                   b'default': None,
                   b'required': False,
                   b'type': b'list'
                 },
                 b'nodesdepth': {
                   b'default': None,
                   b'required': False,
                   b'type': b'int'
                 }
               },
               b'permissions': [
                 b'pull'
               ]
             },
             b'filedata': {
               b'args': {
                 b'fields': {
                   b'default': set([]),
                   b'required': False,
                   b'type': b'set',
                   b'validvalues': set([
                     b'parents',
                     b'revision'
                   ])
                 },
                 b'haveparents': {
                   b'default': False,
                   b'required': False,
                   b'type': b'bool'
                 },
                 b'nodes': {
                   b'required': True,
                   b'type': b'list'
                 },
                 b'path': {
                   b'required': True,
                   b'type': b'bytes'
                 }
               },
               b'permissions': [
                 b'pull'
               ]
             },
             b'heads': {
               b'args': {
                 b'publiconly': {
                   b'default': False,
                   b'required': False,
                   b'type': b'bool'
                 }
               },
               b'permissions': [
                 b'pull'
               ]
             },
             b'known': {
               b'args': {
                 b'nodes': {
                   b'default': [],
                   b'required': False,
                   b'type': b'list'
                 }
               },
               b'permissions': [
                 b'pull'
               ]
             },
             b'listkeys': {
               b'args': {
                 b'namespace': {
                   b'required': True,
                   b'type': b'bytes'
                 }
               },
               b'permissions': [
                 b'pull'
               ]
             },
             b'lookup': {
               b'args': {
                 b'key': {
                   b'required': True,
                   b'type': b'bytes'
                 }
               },
               b'permissions': [
                 b'pull'
               ]
             },
             b'manifestdata': {
               b'args': {
                 b'fields': {
                   b'default': set([]),
                   b'required': False,
                   b'type': b'set',
                   b'validvalues': set([
                     b'parents',
                     b'revision'
                   ])
                 },
                 b'haveparents': {
                   b'default': False,
                   b'required': False,
                   b'type': b'bool'
                 },
                 b'nodes': {
                   b'required': True,
                   b'type': b'list'
                 },
                 b'tree': {
                   b'required': True,
                   b'type': b'bytes'
                 }
               },
               b'permissions': [
                 b'pull'
-              ]
+              ],
+              b'recommendedbatchsize': 100000
             },
             b'pushkey': {
               b'args': {
                 b'key': {
                   b'required': True,
                   b'type': b'bytes'
                 },
                 b'namespace': {
                   b'required': True,
                   b'type': b'bytes'
                 },
                 b'new': {
                   b'required': True,
                   b'type': b'bytes'
                 },
                 b'old': {
                   b'required': True,
                   b'type': b'bytes'
                 }
               },
               b'permissions': [
                 b'push'
               ]
             }
           },
           b'framingmediatypes': [
             b'application/mercurial-exp-framing-0006'
           ],
           b'pathfilterprefixes': set([
             b'path:',
             b'rootfilesin:'
           ]),
           b'rawrepoformats': [
             b'generaldelta',
             b'revlogv1'
           ]
         }
       },
       b'v1capabilities': b'batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash'
     }
   ]
 
 capabilities command returns expected info
 
   $ sendhttpv2peerhandshake << EOF
   > command capabilities
   > EOF
   creating http peer for wire protocol version 2
   s>     GET /?cmd=capabilities HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     vary: X-HgProto-1,X-HgUpgrade-1\r\n
   s>     x-hgproto-1: cbor\r\n
   s>     x-hgupgrade-1: exp-http-v2-0002\r\n
   s>     accept: application/mercurial-0.1\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
   s>     user-agent: Mercurial debugwireproto\r\n
   s>     \r\n
   s> makefile('rb', None)
   s>     HTTP/1.1 200 OK\r\n
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     Content-Type: application/mercurial-cbor\r\n
   s>     Content-Length: *\r\n (glob)
   s>     \r\n
-  s>     \xa3GapibaseDapi/Dapis\xa1Pexp-http-v2-0002\xa4Hcommands\xaaIbranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84IbookmarksGparentsEphaseHrevisionInoderange\xa3Gdefault\xf6Hrequired\xf4DtypeDlistEnodes\xa3Gdefault\xf6Hrequired\xf4DtypeDlistJnodesdepth\xa3Gdefault\xf6Hrequired\xf4DtypeCintKpermissions\x81DpullHfiledata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDpath\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullEheads\xa2Dargs\xa1Jpubliconly\xa3Gdefault\xf4Hrequired\xf4DtypeDboolKpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\xa3Gdefault\x80Hrequired\xf4DtypeDlistKpermissions\x81DpullHlistkeys\xa2Dargs\xa1Inamespace\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullFlookup\xa2Dargs\xa1Ckey\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullLmanifestdata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDtree\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullGpushkey\xa2Dargs\xa4Ckey\xa2Hrequired\xf5DtypeEbytesInamespace\xa2Hrequired\xf5DtypeEbytesCnew\xa2Hrequired\xf5DtypeEbytesCold\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpushQframingmediatypes\x81X&application/mercurial-exp-framing-0006Rpathfilterprefixes\xd9\x01\x02\x82Epath:Lrootfilesin:Nrawrepoformats\x82LgeneraldeltaHrevlogv1Nv1capabilitiesY\x01\xd3batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  s>     \xa3GapibaseDapi/Dapis\xa1Pexp-http-v2-0002\xa4Hcommands\xaaIbranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84IbookmarksGparentsEphaseHrevisionInoderange\xa3Gdefault\xf6Hrequired\xf4DtypeDlistEnodes\xa3Gdefault\xf6Hrequired\xf4DtypeDlistJnodesdepth\xa3Gdefault\xf6Hrequired\xf4DtypeCintKpermissions\x81DpullHfiledata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDpath\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullEheads\xa2Dargs\xa1Jpubliconly\xa3Gdefault\xf4Hrequired\xf4DtypeDboolKpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\xa3Gdefault\x80Hrequired\xf4DtypeDlistKpermissions\x81DpullHlistkeys\xa2Dargs\xa1Inamespace\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullFlookup\xa2Dargs\xa1Ckey\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullLmanifestdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDtree\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullTrecommendedbatchsize\x1a\x00\x01\x86\xa0Gpushkey\xa2Dargs\xa4Ckey\xa2Hrequired\xf5DtypeEbytesInamespace\xa2Hrequired\xf5DtypeEbytesCnew\xa2Hrequired\xf5DtypeEbytesCold\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpushQframingmediatypes\x81X&application/mercurial-exp-framing-0006Rpathfilterprefixes\xd9\x01\x02\x82Epath:Lrootfilesin:Nrawrepoformats\x82LgeneraldeltaHrevlogv1Nv1capabilitiesY\x01\xd3batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   sending capabilities command
   s>     POST /api/exp-http-v2-0002/ro/capabilities HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     accept: application/mercurial-exp-framing-0006\r\n
   s>     content-type: application/mercurial-exp-framing-0006\r\n
   s>     content-length: 63\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
   s>     user-agent: Mercurial debugwireproto\r\n
   s>     \r\n
   s>     \x1c\x00\x00\x01\x00\x01\x01\x82\xa1Pcontentencodings\x81Hidentity\x13\x00\x00\x01\x00\x01\x00\x11\xa1DnameLcapabilities
   s> makefile('rb', None)
   s>     HTTP/1.1 200 OK\r\n
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     Content-Type: application/mercurial-exp-framing-0006\r\n
   s>     Transfer-Encoding: chunked\r\n
   s>     \r\n
   s>     11\r\n
   s>     \t\x00\x00\x01\x00\x02\x01\x92
   s>     Hidentity
   s>     \r\n
   received frame(size=9; request=1; stream=2; streamflags=stream-begin; type=stream-settings; flags=eos)
   s>     13\r\n
   s>     \x0b\x00\x00\x01\x00\x02\x041
   s>     \xa1FstatusBok
   s>     \r\n
   received frame(size=11; request=1; stream=2; streamflags=encoded; type=command-response; flags=continuation)
-  s>     508\r\n
-  s>     \x00\x05\x00\x01\x00\x02\x041
-  s>     \xa4Hcommands\xaaIbranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84IbookmarksGparentsEphaseHrevisionInoderange\xa3Gdefault\xf6Hrequired\xf4DtypeDlistEnodes\xa3Gdefault\xf6Hrequired\xf4DtypeDlistJnodesdepth\xa3Gdefault\xf6Hrequired\xf4DtypeCintKpermissions\x81DpullHfiledata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDpath\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullEheads\xa2Dargs\xa1Jpubliconly\xa3Gdefault\xf4Hrequired\xf4DtypeDboolKpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\xa3Gdefault\x80Hrequired\xf4DtypeDlistKpermissions\x81DpullHlistkeys\xa2Dargs\xa1Inamespace\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullFlookup\xa2Dargs\xa1Ckey\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullLmanifestdata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDtree\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullGpushkey\xa2Dargs\xa4Ckey\xa2Hrequired\xf5DtypeEbytesInamespace\xa2Hrequired\xf5DtypeEbytesCnew\xa2Hrequired\xf5DtypeEbytesCold\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpushQframingmediatypes\x81X&application/mercurial-exp-framing-0006Rpathfilterprefixes\xd9\x01\x02\x82Epath:Lrootfilesin:Nrawrepoformats\x82LgeneraldeltaHrevlogv1
+  s>     522\r\n
+  s>     \x1a\x05\x00\x01\x00\x02\x041
+  s>     \xa4Hcommands\xaaIbranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84IbookmarksGparentsEphaseHrevisionInoderange\xa3Gdefault\xf6Hrequired\xf4DtypeDlistEnodes\xa3Gdefault\xf6Hrequired\xf4DtypeDlistJnodesdepth\xa3Gdefault\xf6Hrequired\xf4DtypeCintKpermissions\x81DpullHfiledata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDpath\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullEheads\xa2Dargs\xa1Jpubliconly\xa3Gdefault\xf4Hrequired\xf4DtypeDboolKpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\xa3Gdefault\x80Hrequired\xf4DtypeDlistKpermissions\x81DpullHlistkeys\xa2Dargs\xa1Inamespace\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullFlookup\xa2Dargs\xa1Ckey\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullLmanifestdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDtree\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullTrecommendedbatchsize\x1a\x00\x01\x86\xa0Gpushkey\xa2Dargs\xa4Ckey\xa2Hrequired\xf5DtypeEbytesInamespace\xa2Hrequired\xf5DtypeEbytesCnew\xa2Hrequired\xf5DtypeEbytesCold\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpushQframingmediatypes\x81X&application/mercurial-exp-framing-0006Rpathfilterprefixes\xd9\x01\x02\x82Epath:Lrootfilesin:Nrawrepoformats\x82LgeneraldeltaHrevlogv1
   s>     \r\n
-  received frame(size=1280; request=1; stream=2; streamflags=encoded; type=command-response; flags=continuation)
+  received frame(size=1306; request=1; stream=2; streamflags=encoded; type=command-response; flags=continuation)
   s>     8\r\n
   s>     \x00\x00\x00\x01\x00\x02\x002
   s>     \r\n
   s>     0\r\n
   s>     \r\n
   received frame(size=0; request=1; stream=2; streamflags=; type=command-response; flags=eos)
   response: gen[
     {
       b'commands': {
         b'branchmap': {
           b'args': {},
           b'permissions': [
             b'pull'
           ]
         },
         b'capabilities': {
           b'args': {},
           b'permissions': [
             b'pull'
           ]
         },
         b'changesetdata': {
           b'args': {
             b'fields': {
               b'default': set([]),
               b'required': False,
               b'type': b'set',
               b'validvalues': set([
                 b'bookmarks',
                 b'parents',
                 b'phase',
                 b'revision'
               ])
             },
             b'noderange': {
               b'default': None,
               b'required': False,
               b'type': b'list'
             },
             b'nodes': {
               b'default': None,
               b'required': False,
               b'type': b'list'
             },
             b'nodesdepth': {
               b'default': None,
               b'required': False,
               b'type': b'int'
             }
           },
           b'permissions': [
             b'pull'
           ]
         },
         b'filedata': {
           b'args': {
             b'fields': {
               b'default': set([]),
               b'required': False,
               b'type': b'set',
               b'validvalues': set([
                 b'parents',
                 b'revision'
               ])
             },
             b'haveparents': {
               b'default': False,
               b'required': False,
               b'type': b'bool'
             },
             b'nodes': {
               b'required': True,
               b'type': b'list'
             },
             b'path': {
               b'required': True,
               b'type': b'bytes'
             }
           },
           b'permissions': [
             b'pull'
           ]
         },
         b'heads': {
           b'args': {
             b'publiconly': {
               b'default': False,
               b'required': False,
               b'type': b'bool'
             }
           },
           b'permissions': [
             b'pull'
           ]
         },
         b'known': {
           b'args': {
             b'nodes': {
               b'default': [],
               b'required': False,
               b'type': b'list'
             }
           },
           b'permissions': [
             b'pull'
           ]
         },
         b'listkeys': {
           b'args': {
             b'namespace': {
               b'required': True,
               b'type': b'bytes'
             }
           },
           b'permissions': [
             b'pull'
           ]
         },
         b'lookup': {
           b'args': {
             b'key': {
               b'required': True,
               b'type': b'bytes'
             }
           },
           b'permissions': [
             b'pull'
           ]
         },
         b'manifestdata': {
           b'args': {
             b'fields': {
               b'default': set([]),
               b'required': False,
               b'type': b'set',
               b'validvalues': set([
                 b'parents',
                 b'revision'
               ])
             },
             b'haveparents': {
               b'default': False,
               b'required': False,
               b'type': b'bool'
             },
             b'nodes': {
               b'required': True,
               b'type': b'list'
             },
             b'tree': {
               b'required': True,
               b'type': b'bytes'
             }
           },
           b'permissions': [
             b'pull'
-          ]
+          ],
+          b'recommendedbatchsize': 100000
         },
         b'pushkey': {
           b'args': {
             b'key': {
               b'required': True,
               b'type': b'bytes'
             },
             b'namespace': {
               b'required': True,
               b'type': b'bytes'
             },
             b'new': {
               b'required': True,
               b'type': b'bytes'
             },
             b'old': {
               b'required': True,
               b'type': b'bytes'
             }
           },
           b'permissions': [
             b'push'
           ]
         }
       },
       b'framingmediatypes': [
         b'application/mercurial-exp-framing-0006'
       ],
       b'pathfilterprefixes': set([
         b'path:',
         b'rootfilesin:'
       ]),
       b'rawrepoformats': [
         b'generaldelta',
         b'revlogv1'
       ]
     }
   ]
   (sent 2 HTTP requests and * bytes; received * bytes in responses) (glob)
 
   $ cat error.log

tests/test-wireproto-content-redirects.t

@@ -1,1310 +1,1314 b''
   $ . $TESTDIR/wireprotohelpers.sh
 
   $ cat >> $HGRCPATH << EOF
   > [extensions]
   > blackbox =
   > [blackbox]
   > track = simplecache
   > EOF
 
   $ hg init server
   $ enablehttpv2 server
   $ cd server
   $ cat >> .hg/hgrc << EOF
   > [server]
   > compressionengines = zlib
   > [extensions]
   > simplecache = $TESTDIR/wireprotosimplecache.py
   > [simplecache]
   > cacheapi = true
   > EOF
 
   $ echo a0 > a
   $ echo b0 > b
   $ hg -q commit -A -m 'commit 0'
   $ echo a1 > a
   $ hg commit -m 'commit 1'
 
   $ hg --debug debugindex -m
      rev linkrev nodeid                                   p1                                       p2
        0       0 992f4779029a3df8d0666d00bb924f69634e2641 0000000000000000000000000000000000000000 0000000000000000000000000000000000000000
        1       1 a988fb43583e871d1ed5750ee074c6d840bbbfc8 992f4779029a3df8d0666d00bb924f69634e2641 0000000000000000000000000000000000000000
 
   $ hg --config simplecache.redirectsfile=redirects.py serve -p $HGPORT -d --pid-file hg.pid -E error.log
   $ cat hg.pid > $DAEMON_PIDS
 
   $ cat > redirects.py << EOF
   > [
   >   {
   >     b'name': b'target-a',
   >     b'protocol': b'http',
   >     b'snirequired': False,
   >     b'tlsversions': [b'1.2', b'1.3'],
   >     b'uris': [b'http://example.com/'],
   >   },
   > ]
   > EOF
 
 Redirect targets advertised when configured
 
   $ sendhttpv2peerhandshake << EOF
   > command capabilities
   > EOF
   creating http peer for wire protocol version 2
   s>     GET /?cmd=capabilities HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     vary: X-HgProto-1,X-HgUpgrade-1\r\n
   s>     x-hgproto-1: cbor\r\n
   s>     x-hgupgrade-1: exp-http-v2-0002\r\n
   s>     accept: application/mercurial-0.1\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
   s>     user-agent: Mercurial debugwireproto\r\n
   s>     \r\n
   s> makefile('rb', None)
   s>     HTTP/1.1 200 OK\r\n
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     Content-Type: application/mercurial-cbor\r\n
-  s>     Content-Length: 1930\r\n
+  s>     Content-Length: 1956\r\n
   s>     \r\n
-  s>     \xa3GapibaseDapi/Dapis\xa1Pexp-http-v2-0002\xa5Hcommands\xaaIbranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84IbookmarksGparentsEphaseHrevisionInoderange\xa3Gdefault\xf6Hrequired\xf4DtypeDlistEnodes\xa3Gdefault\xf6Hrequired\xf4DtypeDlistJnodesdepth\xa3Gdefault\xf6Hrequired\xf4DtypeCintKpermissions\x81DpullHfiledata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDpath\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullEheads\xa2Dargs\xa1Jpubliconly\xa3Gdefault\xf4Hrequired\xf4DtypeDboolKpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\xa3Gdefault\x80Hrequired\xf4DtypeDlistKpermissions\x81DpullHlistkeys\xa2Dargs\xa1Inamespace\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullFlookup\xa2Dargs\xa1Ckey\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullLmanifestdata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDtree\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullGpushkey\xa2Dargs\xa4Ckey\xa2Hrequired\xf5DtypeEbytesInamespace\xa2Hrequired\xf5DtypeEbytesCnew\xa2Hrequired\xf5DtypeEbytesCold\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpushQframingmediatypes\x81X&application/mercurial-exp-framing-0006Rpathfilterprefixes\xd9\x01\x02\x82Epath:Lrootfilesin:Nrawrepoformats\x82LgeneraldeltaHrevlogv1Hredirect\xa2Fhashes\x82Fsha256Dsha1Gtargets\x81\xa5DnameHtarget-aHprotocolDhttpKsnirequired\xf4Ktlsversions\x82C1.2C1.3Duris\x81Shttp://example.com/Nv1capabilitiesY\x01\xd3batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  s>     \xa3GapibaseDapi/Dapis\xa1Pexp-http-v2-0002\xa5Hcommands\xaaIbranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84IbookmarksGparentsEphaseHrevisionInoderange\xa3Gdefault\xf6Hrequired\xf4DtypeDlistEnodes\xa3Gdefault\xf6Hrequired\xf4DtypeDlistJnodesdepth\xa3Gdefault\xf6Hrequired\xf4DtypeCintKpermissions\x81DpullHfiledata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDpath\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullEheads\xa2Dargs\xa1Jpubliconly\xa3Gdefault\xf4Hrequired\xf4DtypeDboolKpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\xa3Gdefault\x80Hrequired\xf4DtypeDlistKpermissions\x81DpullHlistkeys\xa2Dargs\xa1Inamespace\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullFlookup\xa2Dargs\xa1Ckey\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullLmanifestdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDtree\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullTrecommendedbatchsize\x1a\x00\x01\x86\xa0Gpushkey\xa2Dargs\xa4Ckey\xa2Hrequired\xf5DtypeEbytesInamespace\xa2Hrequired\xf5DtypeEbytesCnew\xa2Hrequired\xf5DtypeEbytesCold\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpushQframingmediatypes\x81X&application/mercurial-exp-framing-0006Rpathfilterprefixes\xd9\x01\x02\x82Epath:Lrootfilesin:Nrawrepoformats\x82LgeneraldeltaHrevlogv1Hredirect\xa2Fhashes\x82Fsha256Dsha1Gtargets\x81\xa5DnameHtarget-aHprotocolDhttpKsnirequired\xf4Ktlsversions\x82C1.2C1.3Duris\x81Shttp://example.com/Nv1capabilitiesY\x01\xd3batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   (remote redirect target target-a is compatible)
   sending capabilities command
   s>     POST /api/exp-http-v2-0002/ro/capabilities HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     accept: application/mercurial-exp-framing-0006\r\n
   s>     content-type: application/mercurial-exp-framing-0006\r\n
   s>     content-length: 111\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
   s>     user-agent: Mercurial debugwireproto\r\n
   s>     \r\n
   s>     \x1c\x00\x00\x01\x00\x01\x01\x82\xa1Pcontentencodings\x81HidentityC\x00\x00\x01\x00\x01\x00\x11\xa2DnameLcapabilitiesHredirect\xa2Fhashes\x82Fsha256Dsha1Gtargets\x81Htarget-a
   s> makefile('rb', None)
   s>     HTTP/1.1 200 OK\r\n
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     Content-Type: application/mercurial-exp-framing-0006\r\n
   s>     Transfer-Encoding: chunked\r\n
   s>     \r\n
   s>     11\r\n
   s>     \t\x00\x00\x01\x00\x02\x01\x92
   s>     Hidentity
   s>     \r\n
   received frame(size=9; request=1; stream=2; streamflags=stream-begin; type=stream-settings; flags=eos)
   s>     13\r\n
   s>     \x0b\x00\x00\x01\x00\x02\x041
   s>     \xa1FstatusBok
   s>     \r\n
   received frame(size=11; request=1; stream=2; streamflags=encoded; type=command-response; flags=continuation)
-  s>     588\r\n
-  s>     \x80\x05\x00\x01\x00\x02\x041
-  s>     \xa5Hcommands\xaaIbranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84IbookmarksGparentsEphaseHrevisionInoderange\xa3Gdefault\xf6Hrequired\xf4DtypeDlistEnodes\xa3Gdefault\xf6Hrequired\xf4DtypeDlistJnodesdepth\xa3Gdefault\xf6Hrequired\xf4DtypeCintKpermissions\x81DpullHfiledata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDpath\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullEheads\xa2Dargs\xa1Jpubliconly\xa3Gdefault\xf4Hrequired\xf4DtypeDboolKpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\xa3Gdefault\x80Hrequired\xf4DtypeDlistKpermissions\x81DpullHlistkeys\xa2Dargs\xa1Inamespace\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullFlookup\xa2Dargs\xa1Ckey\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullLmanifestdata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDtree\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullGpushkey\xa2Dargs\xa4Ckey\xa2Hrequired\xf5DtypeEbytesInamespace\xa2Hrequired\xf5DtypeEbytesCnew\xa2Hrequired\xf5DtypeEbytesCold\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpushQframingmediatypes\x81X&application/mercurial-exp-framing-0006Rpathfilterprefixes\xd9\x01\x02\x82Epath:Lrootfilesin:Nrawrepoformats\x82LgeneraldeltaHrevlogv1Hredirect\xa2Fhashes\x82Fsha256Dsha1Gtargets\x81\xa5DnameHtarget-aHprotocolDhttpKsnirequired\xf4Ktlsversions\x82C1.2C1.3Duris\x81Shttp://example.com/
+  s>     5a2\r\n
+  s>     \x9a\x05\x00\x01\x00\x02\x041
+  s>     \xa5Hcommands\xaaIbranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84IbookmarksGparentsEphaseHrevisionInoderange\xa3Gdefault\xf6Hrequired\xf4DtypeDlistEnodes\xa3Gdefault\xf6Hrequired\xf4DtypeDlistJnodesdepth\xa3Gdefault\xf6Hrequired\xf4DtypeCintKpermissions\x81DpullHfiledata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDpath\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullEheads\xa2Dargs\xa1Jpubliconly\xa3Gdefault\xf4Hrequired\xf4DtypeDboolKpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\xa3Gdefault\x80Hrequired\xf4DtypeDlistKpermissions\x81DpullHlistkeys\xa2Dargs\xa1Inamespace\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullFlookup\xa2Dargs\xa1Ckey\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullLmanifestdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDtree\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullTrecommendedbatchsize\x1a\x00\x01\x86\xa0Gpushkey\xa2Dargs\xa4Ckey\xa2Hrequired\xf5DtypeEbytesInamespace\xa2Hrequired\xf5DtypeEbytesCnew\xa2Hrequired\xf5DtypeEbytesCold\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpushQframingmediatypes\x81X&application/mercurial-exp-framing-0006Rpathfilterprefixes\xd9\x01\x02\x82Epath:Lrootfilesin:Nrawrepoformats\x82LgeneraldeltaHrevlogv1Hredirect\xa2Fhashes\x82Fsha256Dsha1Gtargets\x81\xa5DnameHtarget-aHprotocolDhttpKsnirequired\xf4Ktlsversions\x82C1.2C1.3Duris\x81Shttp://example.com/
   s>     \r\n
-  received frame(size=1408; request=1; stream=2; streamflags=encoded; type=command-response; flags=continuation)
+  received frame(size=1434; request=1; stream=2; streamflags=encoded; type=command-response; flags=continuation)
   s>     8\r\n
   s>     \x00\x00\x00\x01\x00\x02\x002
   s>     \r\n
   s>     0\r\n
   s>     \r\n
   received frame(size=0; request=1; stream=2; streamflags=; type=command-response; flags=eos)
   response: gen[
     {
       b'commands': {
         b'branchmap': {
           b'args': {},
           b'permissions': [
             b'pull'
           ]
         },
         b'capabilities': {
           b'args': {},
           b'permissions': [
             b'pull'
           ]
         },
         b'changesetdata': {
           b'args': {
             b'fields': {
               b'default': set([]),
               b'required': False,
               b'type': b'set',
               b'validvalues': set([
                 b'bookmarks',
                 b'parents',
                 b'phase',
                 b'revision'
               ])
             },
             b'noderange': {
               b'default': None,
               b'required': False,
               b'type': b'list'
             },
             b'nodes': {
               b'default': None,
               b'required': False,
               b'type': b'list'
             },
             b'nodesdepth': {
               b'default': None,
               b'required': False,
               b'type': b'int'
             }
           },
           b'permissions': [
             b'pull'
           ]
         },
         b'filedata': {
           b'args': {
             b'fields': {
               b'default': set([]),
               b'required': False,
               b'type': b'set',
               b'validvalues': set([
                 b'parents',
                 b'revision'
               ])
             },
             b'haveparents': {
               b'default': False,
               b'required': False,
               b'type': b'bool'
             },
             b'nodes': {
               b'required': True,
               b'type': b'list'
             },
             b'path': {
               b'required': True,
               b'type': b'bytes'
             }
           },
           b'permissions': [
             b'pull'
           ]
         },
         b'heads': {
           b'args': {
             b'publiconly': {
               b'default': False,
               b'required': False,
               b'type': b'bool'
             }
           },
           b'permissions': [
             b'pull'
           ]
         },
         b'known': {
           b'args': {
             b'nodes': {
               b'default': [],
               b'required': False,
               b'type': b'list'
             }
           },
           b'permissions': [
             b'pull'
           ]
         },
         b'listkeys': {
           b'args': {
             b'namespace': {
               b'required': True,
               b'type': b'bytes'
             }
           },
           b'permissions': [
             b'pull'
           ]
         },
         b'lookup': {
           b'args': {
             b'key': {
               b'required': True,
               b'type': b'bytes'
             }
           },
           b'permissions': [
             b'pull'
           ]
         },
         b'manifestdata': {
           b'args': {
             b'fields': {
               b'default': set([]),
               b'required': False,
               b'type': b'set',
               b'validvalues': set([
                 b'parents',
                 b'revision'
               ])
             },
             b'haveparents': {
               b'default': False,
               b'required': False,
               b'type': b'bool'
             },
             b'nodes': {
               b'required': True,
               b'type': b'list'
             },
             b'tree': {
               b'required': True,
               b'type': b'bytes'
             }
           },
           b'permissions': [
             b'pull'
-          ]
+          ],
+          b'recommendedbatchsize': 100000
         },
         b'pushkey': {
           b'args': {
             b'key': {
               b'required': True,
               b'type': b'bytes'
             },
             b'namespace': {
               b'required': True,
               b'type': b'bytes'
             },
             b'new': {
               b'required': True,
               b'type': b'bytes'
             },
             b'old': {
               b'required': True,
               b'type': b'bytes'
             }
           },
           b'permissions': [
             b'push'
           ]
         }
       },
       b'framingmediatypes': [
         b'application/mercurial-exp-framing-0006'
       ],
       b'pathfilterprefixes': set([
         b'path:',
         b'rootfilesin:'
       ]),
       b'rawrepoformats': [
         b'generaldelta',
         b'revlogv1'
       ],
       b'redirect': {
         b'hashes': [
           b'sha256',
           b'sha1'
         ],
         b'targets': [
           {
             b'name': b'target-a',
             b'protocol': b'http',
             b'snirequired': False,
             b'tlsversions': [
               b'1.2',
               b'1.3'
             ],
             b'uris': [
               b'http://example.com/'
             ]
           }
         ]
       }
     }
   ]
   (sent 2 HTTP requests and * bytes; received * bytes in responses) (glob)
 
 Unknown protocol is filtered from compatible targets
 
   $ cat > redirects.py << EOF
   > [
   >   {
   >     b'name': b'target-a',
   >     b'protocol': b'http',
   >     b'uris': [b'http://example.com/'],
   >   },
   >   {
   >     b'name': b'target-b',
   >     b'protocol': b'unknown',
   >     b'uris': [b'unknown://example.com/'],
   >   },
   > ]
   > EOF
 
   $ sendhttpv2peerhandshake << EOF
   > command capabilities
   > EOF
   creating http peer for wire protocol version 2
   s>     GET /?cmd=capabilities HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     vary: X-HgProto-1,X-HgUpgrade-1\r\n
   s>     x-hgproto-1: cbor\r\n
   s>     x-hgupgrade-1: exp-http-v2-0002\r\n
   s>     accept: application/mercurial-0.1\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
   s>     user-agent: Mercurial debugwireproto\r\n
   s>     \r\n
   s> makefile('rb', None)
   s>     HTTP/1.1 200 OK\r\n
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     Content-Type: application/mercurial-cbor\r\n
-  s>     Content-Length: 1957\r\n
+  s>     Content-Length: 1983\r\n
   s>     \r\n
-  s>     \xa3GapibaseDapi/Dapis\xa1Pexp-http-v2-0002\xa5Hcommands\xaaIbranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84IbookmarksGparentsEphaseHrevisionInoderange\xa3Gdefault\xf6Hrequired\xf4DtypeDlistEnodes\xa3Gdefault\xf6Hrequired\xf4DtypeDlistJnodesdepth\xa3Gdefault\xf6Hrequired\xf4DtypeCintKpermissions\x81DpullHfiledata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDpath\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullEheads\xa2Dargs\xa1Jpubliconly\xa3Gdefault\xf4Hrequired\xf4DtypeDboolKpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\xa3Gdefault\x80Hrequired\xf4DtypeDlistKpermissions\x81DpullHlistkeys\xa2Dargs\xa1Inamespace\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullFlookup\xa2Dargs\xa1Ckey\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullLmanifestdata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDtree\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullGpushkey\xa2Dargs\xa4Ckey\xa2Hrequired\xf5DtypeEbytesInamespace\xa2Hrequired\xf5DtypeEbytesCnew\xa2Hrequired\xf5DtypeEbytesCold\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpushQframingmediatypes\x81X&application/mercurial-exp-framing-0006Rpathfilterprefixes\xd9\x01\x02\x82Epath:Lrootfilesin:Nrawrepoformats\x82LgeneraldeltaHrevlogv1Hredirect\xa2Fhashes\x82Fsha256Dsha1Gtargets\x82\xa3DnameHtarget-aHprotocolDhttpDuris\x81Shttp://example.com/\xa3DnameHtarget-bHprotocolGunknownDuris\x81Vunknown://example.com/Nv1capabilitiesY\x01\xd3batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  s>     \xa3GapibaseDapi/Dapis\xa1Pexp-http-v2-0002\xa5Hcommands\xaaIbranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84IbookmarksGparentsEphaseHrevisionInoderange\xa3Gdefault\xf6Hrequired\xf4DtypeDlistEnodes\xa3Gdefault\xf6Hrequired\xf4DtypeDlistJnodesdepth\xa3Gdefault\xf6Hrequired\xf4DtypeCintKpermissions\x81DpullHfiledata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDpath\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullEheads\xa2Dargs\xa1Jpubliconly\xa3Gdefault\xf4Hrequired\xf4DtypeDboolKpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\xa3Gdefault\x80Hrequired\xf4DtypeDlistKpermissions\x81DpullHlistkeys\xa2Dargs\xa1Inamespace\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullFlookup\xa2Dargs\xa1Ckey\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullLmanifestdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDtree\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullTrecommendedbatchsize\x1a\x00\x01\x86\xa0Gpushkey\xa2Dargs\xa4Ckey\xa2Hrequired\xf5DtypeEbytesInamespace\xa2Hrequired\xf5DtypeEbytesCnew\xa2Hrequired\xf5DtypeEbytesCold\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpushQframingmediatypes\x81X&application/mercurial-exp-framing-0006Rpathfilterprefixes\xd9\x01\x02\x82Epath:Lrootfilesin:Nrawrepoformats\x82LgeneraldeltaHrevlogv1Hredirect\xa2Fhashes\x82Fsha256Dsha1Gtargets\x82\xa3DnameHtarget-aHprotocolDhttpDuris\x81Shttp://example.com/\xa3DnameHtarget-bHprotocolGunknownDuris\x81Vunknown://example.com/Nv1capabilitiesY\x01\xd3batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   (remote redirect target target-a is compatible)
   (remote redirect target target-b uses unsupported protocol: unknown)
   sending capabilities command
   s>     POST /api/exp-http-v2-0002/ro/capabilities HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     accept: application/mercurial-exp-framing-0006\r\n
   s>     content-type: application/mercurial-exp-framing-0006\r\n
   s>     content-length: 111\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
   s>     user-agent: Mercurial debugwireproto\r\n
   s>     \r\n
   s>     \x1c\x00\x00\x01\x00\x01\x01\x82\xa1Pcontentencodings\x81HidentityC\x00\x00\x01\x00\x01\x00\x11\xa2DnameLcapabilitiesHredirect\xa2Fhashes\x82Fsha256Dsha1Gtargets\x81Htarget-a
   s> makefile('rb', None)
   s>     HTTP/1.1 200 OK\r\n
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     Content-Type: application/mercurial-exp-framing-0006\r\n
   s>     Transfer-Encoding: chunked\r\n
   s>     \r\n
   s>     11\r\n
   s>     \t\x00\x00\x01\x00\x02\x01\x92
   s>     Hidentity
   s>     \r\n
   received frame(size=9; request=1; stream=2; streamflags=stream-begin; type=stream-settings; flags=eos)
   s>     13\r\n
   s>     \x0b\x00\x00\x01\x00\x02\x041
   s>     \xa1FstatusBok
   s>     \r\n
   received frame(size=11; request=1; stream=2; streamflags=encoded; type=command-response; flags=continuation)
-  s>     5a3\r\n
-  s>     \x9b\x05\x00\x01\x00\x02\x041
-  s>     \xa5Hcommands\xaaIbranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84IbookmarksGparentsEphaseHrevisionInoderange\xa3Gdefault\xf6Hrequired\xf4DtypeDlistEnodes\xa3Gdefault\xf6Hrequired\xf4DtypeDlistJnodesdepth\xa3Gdefault\xf6Hrequired\xf4DtypeCintKpermissions\x81DpullHfiledata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDpath\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullEheads\xa2Dargs\xa1Jpubliconly\xa3Gdefault\xf4Hrequired\xf4DtypeDboolKpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\xa3Gdefault\x80Hrequired\xf4DtypeDlistKpermissions\x81DpullHlistkeys\xa2Dargs\xa1Inamespace\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullFlookup\xa2Dargs\xa1Ckey\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullLmanifestdata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDtree\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullGpushkey\xa2Dargs\xa4Ckey\xa2Hrequired\xf5DtypeEbytesInamespace\xa2Hrequired\xf5DtypeEbytesCnew\xa2Hrequired\xf5DtypeEbytesCold\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpushQframingmediatypes\x81X&application/mercurial-exp-framing-0006Rpathfilterprefixes\xd9\x01\x02\x82Epath:Lrootfilesin:Nrawrepoformats\x82LgeneraldeltaHrevlogv1Hredirect\xa2Fhashes\x82Fsha256Dsha1Gtargets\x82\xa3DnameHtarget-aHprotocolDhttpDuris\x81Shttp://example.com/\xa3DnameHtarget-bHprotocolGunknownDuris\x81Vunknown://example.com/
+  s>     5bd\r\n
+  s>     \xb5\x05\x00\x01\x00\x02\x041
+  s>     \xa5Hcommands\xaaIbranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84IbookmarksGparentsEphaseHrevisionInoderange\xa3Gdefault\xf6Hrequired\xf4DtypeDlistEnodes\xa3Gdefault\xf6Hrequired\xf4DtypeDlistJnodesdepth\xa3Gdefault\xf6Hrequired\xf4DtypeCintKpermissions\x81DpullHfiledata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDpath\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullEheads\xa2Dargs\xa1Jpubliconly\xa3Gdefault\xf4Hrequired\xf4DtypeDboolKpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\xa3Gdefault\x80Hrequired\xf4DtypeDlistKpermissions\x81DpullHlistkeys\xa2Dargs\xa1Inamespace\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullFlookup\xa2Dargs\xa1Ckey\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullLmanifestdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDtree\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullTrecommendedbatchsize\x1a\x00\x01\x86\xa0Gpushkey\xa2Dargs\xa4Ckey\xa2Hrequired\xf5DtypeEbytesInamespace\xa2Hrequired\xf5DtypeEbytesCnew\xa2Hrequired\xf5DtypeEbytesCold\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpushQframingmediatypes\x81X&application/mercurial-exp-framing-0006Rpathfilterprefixes\xd9\x01\x02\x82Epath:Lrootfilesin:Nrawrepoformats\x82LgeneraldeltaHrevlogv1Hredirect\xa2Fhashes\x82Fsha256Dsha1Gtargets\x82\xa3DnameHtarget-aHprotocolDhttpDuris\x81Shttp://example.com/\xa3DnameHtarget-bHprotocolGunknownDuris\x81Vunknown://example.com/
   s>     \r\n
-  received frame(size=1435; request=1; stream=2; streamflags=encoded; type=command-response; flags=continuation)
+  received frame(size=1461; request=1; stream=2; streamflags=encoded; type=command-response; flags=continuation)
   s>     8\r\n
   s>     \x00\x00\x00\x01\x00\x02\x002
   s>     \r\n
   s>     0\r\n
   s>     \r\n
   received frame(size=0; request=1; stream=2; streamflags=; type=command-response; flags=eos)
   response: gen[
     {
       b'commands': {
         b'branchmap': {
           b'args': {},
           b'permissions': [
             b'pull'
           ]
         },
         b'capabilities': {
           b'args': {},
           b'permissions': [
             b'pull'
           ]
         },
         b'changesetdata': {
           b'args': {
             b'fields': {
               b'default': set([]),
               b'required': False,
               b'type': b'set',
               b'validvalues': set([
                 b'bookmarks',
                 b'parents',
                 b'phase',
                 b'revision'
               ])
             },
             b'noderange': {
               b'default': None,
               b'required': False,
               b'type': b'list'
             },
             b'nodes': {
               b'default': None,
               b'required': False,
               b'type': b'list'
             },
             b'nodesdepth': {
               b'default': None,
               b'required': False,
               b'type': b'int'
             }
           },
           b'permissions': [
             b'pull'
           ]
         },
         b'filedata': {
           b'args': {
             b'fields': {
               b'default': set([]),
               b'required': False,
               b'type': b'set',
               b'validvalues': set([
                 b'parents',
                 b'revision'
               ])
             },
             b'haveparents': {
               b'default': False,
               b'required': False,
               b'type': b'bool'
             },
             b'nodes': {
               b'required': True,
               b'type': b'list'
             },
             b'path': {
               b'required': True,
               b'type': b'bytes'
             }
           },
           b'permissions': [
             b'pull'
           ]
         },
         b'heads': {
           b'args': {
             b'publiconly': {
               b'default': False,
               b'required': False,
               b'type': b'bool'
             }
           },
           b'permissions': [
             b'pull'
           ]
         },
         b'known': {
           b'args': {
             b'nodes': {
               b'default': [],
               b'required': False,
               b'type': b'list'
             }
           },
           b'permissions': [
             b'pull'
           ]
         },
         b'listkeys': {
           b'args': {
             b'namespace': {
               b'required': True,
               b'type': b'bytes'
             }
           },
           b'permissions': [
             b'pull'
           ]
         },
         b'lookup': {
           b'args': {
             b'key': {
               b'required': True,
               b'type': b'bytes'
             }
           },
           b'permissions': [
             b'pull'
           ]
         },
         b'manifestdata': {
           b'args': {
             b'fields': {
               b'default': set([]),
               b'required': False,
               b'type': b'set',
               b'validvalues': set([
                 b'parents',
                 b'revision'
               ])
             },
             b'haveparents': {
               b'default': False,
               b'required': False,
               b'type': b'bool'
             },
             b'nodes': {
               b'required': True,
               b'type': b'list'
             },
             b'tree': {
               b'required': True,
               b'type': b'bytes'
             }
           },
           b'permissions': [
             b'pull'
-          ]
+          ],
+          b'recommendedbatchsize': 100000
         },
         b'pushkey': {
           b'args': {
             b'key': {
               b'required': True,
               b'type': b'bytes'
             },
             b'namespace': {
               b'required': True,
               b'type': b'bytes'
             },
             b'new': {
               b'required': True,
               b'type': b'bytes'
             },
             b'old': {
               b'required': True,
               b'type': b'bytes'
             }
           },
           b'permissions': [
             b'push'
           ]
         }
       },
       b'framingmediatypes': [
         b'application/mercurial-exp-framing-0006'
       ],
       b'pathfilterprefixes': set([
         b'path:',
         b'rootfilesin:'
       ]),
       b'rawrepoformats': [
         b'generaldelta',
         b'revlogv1'
       ],
       b'redirect': {
         b'hashes': [
           b'sha256',
           b'sha1'
         ],
         b'targets': [
           {
             b'name': b'target-a',
             b'protocol': b'http',
             b'uris': [
               b'http://example.com/'
             ]
           },
           {
             b'name': b'target-b',
             b'protocol': b'unknown',
             b'uris': [
               b'unknown://example.com/'
             ]
           }
         ]
       }
     }
   ]
   (sent 2 HTTP requests and * bytes; received * bytes in responses) (glob)
 
 Missing SNI support filters targets that require SNI
 
   $ cat > nosni.py << EOF
   > from mercurial import sslutil
   > sslutil.hassni = False
   > EOF
   $ cat >> $HGRCPATH << EOF
   > [extensions]
   > nosni=`pwd`/nosni.py
   > EOF
 
   $ cat > redirects.py << EOF
   > [
   >   {
   >     b'name': b'target-bad-tls',
   >     b'protocol': b'https',
   >     b'uris': [b'https://example.com/'],
   >     b'snirequired': True,
   >   },
   > ]
   > EOF
 
   $ sendhttpv2peerhandshake << EOF
   > command capabilities
   > EOF
   creating http peer for wire protocol version 2
   s>     GET /?cmd=capabilities HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     vary: X-HgProto-1,X-HgUpgrade-1\r\n
   s>     x-hgproto-1: cbor\r\n
   s>     x-hgupgrade-1: exp-http-v2-0002\r\n
   s>     accept: application/mercurial-0.1\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
   s>     user-agent: Mercurial debugwireproto\r\n
   s>     \r\n
   s> makefile('rb', None)
   s>     HTTP/1.1 200 OK\r\n
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     Content-Type: application/mercurial-cbor\r\n
-  s>     Content-Length: 1917\r\n
+  s>     Content-Length: 1943\r\n
   s>     \r\n
-  s>     \xa3GapibaseDapi/Dapis\xa1Pexp-http-v2-0002\xa5Hcommands\xaaIbranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84IbookmarksGparentsEphaseHrevisionInoderange\xa3Gdefault\xf6Hrequired\xf4DtypeDlistEnodes\xa3Gdefault\xf6Hrequired\xf4DtypeDlistJnodesdepth\xa3Gdefault\xf6Hrequired\xf4DtypeCintKpermissions\x81DpullHfiledata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDpath\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullEheads\xa2Dargs\xa1Jpubliconly\xa3Gdefault\xf4Hrequired\xf4DtypeDboolKpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\xa3Gdefault\x80Hrequired\xf4DtypeDlistKpermissions\x81DpullHlistkeys\xa2Dargs\xa1Inamespace\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullFlookup\xa2Dargs\xa1Ckey\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullLmanifestdata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDtree\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullGpushkey\xa2Dargs\xa4Ckey\xa2Hrequired\xf5DtypeEbytesInamespace\xa2Hrequired\xf5DtypeEbytesCnew\xa2Hrequired\xf5DtypeEbytesCold\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpushQframingmediatypes\x81X&application/mercurial-exp-framing-0006Rpathfilterprefixes\xd9\x01\x02\x82Epath:Lrootfilesin:Nrawrepoformats\x82LgeneraldeltaHrevlogv1Hredirect\xa2Fhashes\x82Fsha256Dsha1Gtargets\x81\xa4DnameNtarget-bad-tlsHprotocolEhttpsKsnirequired\xf5Duris\x81Thttps://example.com/Nv1capabilitiesY\x01\xd3batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  s>     \xa3GapibaseDapi/Dapis\xa1Pexp-http-v2-0002\xa5Hcommands\xaaIbranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84IbookmarksGparentsEphaseHrevisionInoderange\xa3Gdefault\xf6Hrequired\xf4DtypeDlistEnodes\xa3Gdefault\xf6Hrequired\xf4DtypeDlistJnodesdepth\xa3Gdefault\xf6Hrequired\xf4DtypeCintKpermissions\x81DpullHfiledata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDpath\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullEheads\xa2Dargs\xa1Jpubliconly\xa3Gdefault\xf4Hrequired\xf4DtypeDboolKpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\xa3Gdefault\x80Hrequired\xf4DtypeDlistKpermissions\x81DpullHlistkeys\xa2Dargs\xa1Inamespace\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullFlookup\xa2Dargs\xa1Ckey\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullLmanifestdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDtree\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullTrecommendedbatchsize\x1a\x00\x01\x86\xa0Gpushkey\xa2Dargs\xa4Ckey\xa2Hrequired\xf5DtypeEbytesInamespace\xa2Hrequired\xf5DtypeEbytesCnew\xa2Hrequired\xf5DtypeEbytesCold\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpushQframingmediatypes\x81X&application/mercurial-exp-framing-0006Rpathfilterprefixes\xd9\x01\x02\x82Epath:Lrootfilesin:Nrawrepoformats\x82LgeneraldeltaHrevlogv1Hredirect\xa2Fhashes\x82Fsha256Dsha1Gtargets\x81\xa4DnameNtarget-bad-tlsHprotocolEhttpsKsnirequired\xf5Duris\x81Thttps://example.com/Nv1capabilitiesY\x01\xd3batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   (redirect target target-bad-tls requires SNI, which is unsupported)
   sending capabilities command
   s>     POST /api/exp-http-v2-0002/ro/capabilities HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     accept: application/mercurial-exp-framing-0006\r\n
   s>     content-type: application/mercurial-exp-framing-0006\r\n
   s>     content-length: 102\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
   s>     user-agent: Mercurial debugwireproto\r\n
   s>     \r\n
   s>     \x1c\x00\x00\x01\x00\x01\x01\x82\xa1Pcontentencodings\x81Hidentity:\x00\x00\x01\x00\x01\x00\x11\xa2DnameLcapabilitiesHredirect\xa2Fhashes\x82Fsha256Dsha1Gtargets\x80
   s> makefile('rb', None)
   s>     HTTP/1.1 200 OK\r\n
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     Content-Type: application/mercurial-exp-framing-0006\r\n
   s>     Transfer-Encoding: chunked\r\n
   s>     \r\n
   s>     11\r\n
   s>     \t\x00\x00\x01\x00\x02\x01\x92
   s>     Hidentity
   s>     \r\n
   received frame(size=9; request=1; stream=2; streamflags=stream-begin; type=stream-settings; flags=eos)
   s>     13\r\n
   s>     \x0b\x00\x00\x01\x00\x02\x041
   s>     \xa1FstatusBok
   s>     \r\n
   received frame(size=11; request=1; stream=2; streamflags=encoded; type=command-response; flags=continuation)
-  s>     57b\r\n
-  s>     s\x05\x00\x01\x00\x02\x041
-  s>     \xa5Hcommands\xaaIbranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84IbookmarksGparentsEphaseHrevisionInoderange\xa3Gdefault\xf6Hrequired\xf4DtypeDlistEnodes\xa3Gdefault\xf6Hrequired\xf4DtypeDlistJnodesdepth\xa3Gdefault\xf6Hrequired\xf4DtypeCintKpermissions\x81DpullHfiledata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDpath\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullEheads\xa2Dargs\xa1Jpubliconly\xa3Gdefault\xf4Hrequired\xf4DtypeDboolKpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\xa3Gdefault\x80Hrequired\xf4DtypeDlistKpermissions\x81DpullHlistkeys\xa2Dargs\xa1Inamespace\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullFlookup\xa2Dargs\xa1Ckey\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullLmanifestdata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDtree\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullGpushkey\xa2Dargs\xa4Ckey\xa2Hrequired\xf5DtypeEbytesInamespace\xa2Hrequired\xf5DtypeEbytesCnew\xa2Hrequired\xf5DtypeEbytesCold\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpushQframingmediatypes\x81X&application/mercurial-exp-framing-0006Rpathfilterprefixes\xd9\x01\x02\x82Epath:Lrootfilesin:Nrawrepoformats\x82LgeneraldeltaHrevlogv1Hredirect\xa2Fhashes\x82Fsha256Dsha1Gtargets\x81\xa4DnameNtarget-bad-tlsHprotocolEhttpsKsnirequired\xf5Duris\x81Thttps://example.com/
+  s>     595\r\n
+  s>     \x8d\x05\x00\x01\x00\x02\x041
+  s>     \xa5Hcommands\xaaIbranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84IbookmarksGparentsEphaseHrevisionInoderange\xa3Gdefault\xf6Hrequired\xf4DtypeDlistEnodes\xa3Gdefault\xf6Hrequired\xf4DtypeDlistJnodesdepth\xa3Gdefault\xf6Hrequired\xf4DtypeCintKpermissions\x81DpullHfiledata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDpath\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullEheads\xa2Dargs\xa1Jpubliconly\xa3Gdefault\xf4Hrequired\xf4DtypeDboolKpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\xa3Gdefault\x80Hrequired\xf4DtypeDlistKpermissions\x81DpullHlistkeys\xa2Dargs\xa1Inamespace\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullFlookup\xa2Dargs\xa1Ckey\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullLmanifestdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDtree\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullTrecommendedbatchsize\x1a\x00\x01\x86\xa0Gpushkey\xa2Dargs\xa4Ckey\xa2Hrequired\xf5DtypeEbytesInamespace\xa2Hrequired\xf5DtypeEbytesCnew\xa2Hrequired\xf5DtypeEbytesCold\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpushQframingmediatypes\x81X&application/mercurial-exp-framing-0006Rpathfilterprefixes\xd9\x01\x02\x82Epath:Lrootfilesin:Nrawrepoformats\x82LgeneraldeltaHrevlogv1Hredirect\xa2Fhashes\x82Fsha256Dsha1Gtargets\x81\xa4DnameNtarget-bad-tlsHprotocolEhttpsKsnirequired\xf5Duris\x81Thttps://example.com/
   s>     \r\n
-  received frame(size=1395; request=1; stream=2; streamflags=encoded; type=command-response; flags=continuation)
+  received frame(size=1421; request=1; stream=2; streamflags=encoded; type=command-response; flags=continuation)
   s>     8\r\n
   s>     \x00\x00\x00\x01\x00\x02\x002
   s>     \r\n
   s>     0\r\n
   s>     \r\n
   received frame(size=0; request=1; stream=2; streamflags=; type=command-response; flags=eos)
   response: gen[
     {
       b'commands': {
         b'branchmap': {
           b'args': {},
           b'permissions': [
             b'pull'
           ]
         },
         b'capabilities': {
           b'args': {},
           b'permissions': [
             b'pull'
           ]
         },
         b'changesetdata': {
           b'args': {
             b'fields': {
               b'default': set([]),
               b'required': False,
               b'type': b'set',
               b'validvalues': set([
                 b'bookmarks',
                 b'parents',
                 b'phase',
                 b'revision'
               ])
             },
             b'noderange': {
               b'default': None,
               b'required': False,
               b'type': b'list'
             },
             b'nodes': {
               b'default': None,
               b'required': False,
               b'type': b'list'
             },
             b'nodesdepth': {
               b'default': None,
               b'required': False,
               b'type': b'int'
             }
           },
           b'permissions': [
             b'pull'
           ]
         },
         b'filedata': {
           b'args': {
             b'fields': {
               b'default': set([]),
               b'required': False,
               b'type': b'set',
               b'validvalues': set([
                 b'parents',
                 b'revision'
               ])
             },
             b'haveparents': {
               b'default': False,
               b'required': False,
               b'type': b'bool'
             },
             b'nodes': {
               b'required': True,
               b'type': b'list'
             },
             b'path': {
               b'required': True,
               b'type': b'bytes'
             }
           },
           b'permissions': [
             b'pull'
           ]
         },
         b'heads': {
           b'args': {
             b'publiconly': {
               b'default': False,
               b'required': False,
               b'type': b'bool'
             }
           },
           b'permissions': [
             b'pull'
           ]
         },
         b'known': {
           b'args': {
             b'nodes': {
               b'default': [],
               b'required': False,
               b'type': b'list'
             }
           },
           b'permissions': [
             b'pull'
           ]
         },
         b'listkeys': {
           b'args': {
             b'namespace': {
               b'required': True,
               b'type': b'bytes'
             }
           },
           b'permissions': [
             b'pull'
           ]
         },
         b'lookup': {
           b'args': {
             b'key': {
               b'required': True,
               b'type': b'bytes'
             }
           },
           b'permissions': [
             b'pull'
           ]
         },
         b'manifestdata': {
           b'args': {
             b'fields': {
               b'default': set([]),
               b'required': False,
               b'type': b'set',
               b'validvalues': set([
                 b'parents',
                 b'revision'
               ])
             },
             b'haveparents': {
               b'default': False,
               b'required': False,
               b'type': b'bool'
             },
             b'nodes': {
               b'required': True,
               b'type': b'list'
             },
             b'tree': {
               b'required': True,
               b'type': b'bytes'
             }
           },
           b'permissions': [
             b'pull'
-          ]
+          ],
+          b'recommendedbatchsize': 100000
         },
         b'pushkey': {
           b'args': {
             b'key': {
               b'required': True,
               b'type': b'bytes'
             },
             b'namespace': {
               b'required': True,
               b'type': b'bytes'
             },
             b'new': {
               b'required': True,
               b'type': b'bytes'
             },
             b'old': {
               b'required': True,
               b'type': b'bytes'
             }
           },
           b'permissions': [
             b'push'
           ]
         }
       },
       b'framingmediatypes': [
         b'application/mercurial-exp-framing-0006'
       ],
       b'pathfilterprefixes': set([
         b'path:',
         b'rootfilesin:'
       ]),
       b'rawrepoformats': [
         b'generaldelta',
         b'revlogv1'
       ],
       b'redirect': {
         b'hashes': [
           b'sha256',
           b'sha1'
         ],
         b'targets': [
           {
             b'name': b'target-bad-tls',
             b'protocol': b'https',
             b'snirequired': True,
             b'uris': [
               b'https://example.com/'
             ]
           }
         ]
       }
     }
   ]
   (sent 2 HTTP requests and * bytes; received * bytes in responses) (glob)
 
   $ cat >> $HGRCPATH << EOF
   > [extensions]
   > nosni=!
   > EOF
 
 Unknown tls value is filtered from compatible targets
 
   $ cat > redirects.py << EOF
   > [
   >   {
   >     b'name': b'target-bad-tls',
   >     b'protocol': b'https',
   >     b'uris': [b'https://example.com/'],
   >     b'tlsversions': [b'42', b'39'],
   >   },
   > ]
   > EOF
 
   $ sendhttpv2peerhandshake << EOF
   > command capabilities
   > EOF
   creating http peer for wire protocol version 2
   s>     GET /?cmd=capabilities HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     vary: X-HgProto-1,X-HgUpgrade-1\r\n
   s>     x-hgproto-1: cbor\r\n
   s>     x-hgupgrade-1: exp-http-v2-0002\r\n
   s>     accept: application/mercurial-0.1\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
   s>     user-agent: Mercurial debugwireproto\r\n
   s>     \r\n
   s> makefile('rb', None)
   s>     HTTP/1.1 200 OK\r\n
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     Content-Type: application/mercurial-cbor\r\n
-  s>     Content-Length: 1923\r\n
+  s>     Content-Length: 1949\r\n
   s>     \r\n
-  s>     \xa3GapibaseDapi/Dapis\xa1Pexp-http-v2-0002\xa5Hcommands\xaaIbranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84IbookmarksGparentsEphaseHrevisionInoderange\xa3Gdefault\xf6Hrequired\xf4DtypeDlistEnodes\xa3Gdefault\xf6Hrequired\xf4DtypeDlistJnodesdepth\xa3Gdefault\xf6Hrequired\xf4DtypeCintKpermissions\x81DpullHfiledata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDpath\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullEheads\xa2Dargs\xa1Jpubliconly\xa3Gdefault\xf4Hrequired\xf4DtypeDboolKpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\xa3Gdefault\x80Hrequired\xf4DtypeDlistKpermissions\x81DpullHlistkeys\xa2Dargs\xa1Inamespace\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullFlookup\xa2Dargs\xa1Ckey\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullLmanifestdata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDtree\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullGpushkey\xa2Dargs\xa4Ckey\xa2Hrequired\xf5DtypeEbytesInamespace\xa2Hrequired\xf5DtypeEbytesCnew\xa2Hrequired\xf5DtypeEbytesCold\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpushQframingmediatypes\x81X&application/mercurial-exp-framing-0006Rpathfilterprefixes\xd9\x01\x02\x82Epath:Lrootfilesin:Nrawrepoformats\x82LgeneraldeltaHrevlogv1Hredirect\xa2Fhashes\x82Fsha256Dsha1Gtargets\x81\xa4DnameNtarget-bad-tlsHprotocolEhttpsKtlsversions\x82B42B39Duris\x81Thttps://example.com/Nv1capabilitiesY\x01\xd3batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  s>     \xa3GapibaseDapi/Dapis\xa1Pexp-http-v2-0002\xa5Hcommands\xaaIbranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84IbookmarksGparentsEphaseHrevisionInoderange\xa3Gdefault\xf6Hrequired\xf4DtypeDlistEnodes\xa3Gdefault\xf6Hrequired\xf4DtypeDlistJnodesdepth\xa3Gdefault\xf6Hrequired\xf4DtypeCintKpermissions\x81DpullHfiledata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDpath\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullEheads\xa2Dargs\xa1Jpubliconly\xa3Gdefault\xf4Hrequired\xf4DtypeDboolKpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\xa3Gdefault\x80Hrequired\xf4DtypeDlistKpermissions\x81DpullHlistkeys\xa2Dargs\xa1Inamespace\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullFlookup\xa2Dargs\xa1Ckey\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullLmanifestdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDtree\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullTrecommendedbatchsize\x1a\x00\x01\x86\xa0Gpushkey\xa2Dargs\xa4Ckey\xa2Hrequired\xf5DtypeEbytesInamespace\xa2Hrequired\xf5DtypeEbytesCnew\xa2Hrequired\xf5DtypeEbytesCold\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpushQframingmediatypes\x81X&application/mercurial-exp-framing-0006Rpathfilterprefixes\xd9\x01\x02\x82Epath:Lrootfilesin:Nrawrepoformats\x82LgeneraldeltaHrevlogv1Hredirect\xa2Fhashes\x82Fsha256Dsha1Gtargets\x81\xa4DnameNtarget-bad-tlsHprotocolEhttpsKtlsversions\x82B42B39Duris\x81Thttps://example.com/Nv1capabilitiesY\x01\xd3batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   (remote redirect target target-bad-tls requires unsupported TLS versions: 39, 42)
   sending capabilities command
   s>     POST /api/exp-http-v2-0002/ro/capabilities HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     accept: application/mercurial-exp-framing-0006\r\n
   s>     content-type: application/mercurial-exp-framing-0006\r\n
   s>     content-length: 102\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
   s>     user-agent: Mercurial debugwireproto\r\n
   s>     \r\n
   s>     \x1c\x00\x00\x01\x00\x01\x01\x82\xa1Pcontentencodings\x81Hidentity:\x00\x00\x01\x00\x01\x00\x11\xa2DnameLcapabilitiesHredirect\xa2Fhashes\x82Fsha256Dsha1Gtargets\x80
   s> makefile('rb', None)
   s>     HTTP/1.1 200 OK\r\n
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     Content-Type: application/mercurial-exp-framing-0006\r\n
   s>     Transfer-Encoding: chunked\r\n
   s>     \r\n
   s>     11\r\n
   s>     \t\x00\x00\x01\x00\x02\x01\x92
   s>     Hidentity
   s>     \r\n
   received frame(size=9; request=1; stream=2; streamflags=stream-begin; type=stream-settings; flags=eos)
   s>     13\r\n
   s>     \x0b\x00\x00\x01\x00\x02\x041
   s>     \xa1FstatusBok
   s>     \r\n
   received frame(size=11; request=1; stream=2; streamflags=encoded; type=command-response; flags=continuation)
-  s>     581\r\n
-  s>     y\x05\x00\x01\x00\x02\x041
-  s>     \xa5Hcommands\xaaIbranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84IbookmarksGparentsEphaseHrevisionInoderange\xa3Gdefault\xf6Hrequired\xf4DtypeDlistEnodes\xa3Gdefault\xf6Hrequired\xf4DtypeDlistJnodesdepth\xa3Gdefault\xf6Hrequired\xf4DtypeCintKpermissions\x81DpullHfiledata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDpath\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullEheads\xa2Dargs\xa1Jpubliconly\xa3Gdefault\xf4Hrequired\xf4DtypeDboolKpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\xa3Gdefault\x80Hrequired\xf4DtypeDlistKpermissions\x81DpullHlistkeys\xa2Dargs\xa1Inamespace\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullFlookup\xa2Dargs\xa1Ckey\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullLmanifestdata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDtree\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullGpushkey\xa2Dargs\xa4Ckey\xa2Hrequired\xf5DtypeEbytesInamespace\xa2Hrequired\xf5DtypeEbytesCnew\xa2Hrequired\xf5DtypeEbytesCold\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpushQframingmediatypes\x81X&application/mercurial-exp-framing-0006Rpathfilterprefixes\xd9\x01\x02\x82Epath:Lrootfilesin:Nrawrepoformats\x82LgeneraldeltaHrevlogv1Hredirect\xa2Fhashes\x82Fsha256Dsha1Gtargets\x81\xa4DnameNtarget-bad-tlsHprotocolEhttpsKtlsversions\x82B42B39Duris\x81Thttps://example.com/
+  s>     59b\r\n
+  s>     \x93\x05\x00\x01\x00\x02\x041
+  s>     \xa5Hcommands\xaaIbranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84IbookmarksGparentsEphaseHrevisionInoderange\xa3Gdefault\xf6Hrequired\xf4DtypeDlistEnodes\xa3Gdefault\xf6Hrequired\xf4DtypeDlistJnodesdepth\xa3Gdefault\xf6Hrequired\xf4DtypeCintKpermissions\x81DpullHfiledata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDpath\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullEheads\xa2Dargs\xa1Jpubliconly\xa3Gdefault\xf4Hrequired\xf4DtypeDboolKpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\xa3Gdefault\x80Hrequired\xf4DtypeDlistKpermissions\x81DpullHlistkeys\xa2Dargs\xa1Inamespace\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullFlookup\xa2Dargs\xa1Ckey\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullLmanifestdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDtree\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullTrecommendedbatchsize\x1a\x00\x01\x86\xa0Gpushkey\xa2Dargs\xa4Ckey\xa2Hrequired\xf5DtypeEbytesInamespace\xa2Hrequired\xf5DtypeEbytesCnew\xa2Hrequired\xf5DtypeEbytesCold\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpushQframingmediatypes\x81X&application/mercurial-exp-framing-0006Rpathfilterprefixes\xd9\x01\x02\x82Epath:Lrootfilesin:Nrawrepoformats\x82LgeneraldeltaHrevlogv1Hredirect\xa2Fhashes\x82Fsha256Dsha1Gtargets\x81\xa4DnameNtarget-bad-tlsHprotocolEhttpsKtlsversions\x82B42B39Duris\x81Thttps://example.com/
   s>     \r\n
-  received frame(size=1401; request=1; stream=2; streamflags=encoded; type=command-response; flags=continuation)
+  received frame(size=1427; request=1; stream=2; streamflags=encoded; type=command-response; flags=continuation)
   s>     8\r\n
   s>     \x00\x00\x00\x01\x00\x02\x002
   s>     \r\n
   s>     0\r\n
   s>     \r\n
   received frame(size=0; request=1; stream=2; streamflags=; type=command-response; flags=eos)
   response: gen[
     {
       b'commands': {
         b'branchmap': {
           b'args': {},
           b'permissions': [
             b'pull'
           ]
         },
         b'capabilities': {
           b'args': {},
           b'permissions': [
             b'pull'
           ]
         },
         b'changesetdata': {
           b'args': {
             b'fields': {
               b'default': set([]),
               b'required': False,
               b'type': b'set',
               b'validvalues': set([
                 b'bookmarks',
                 b'parents',
                 b'phase',
                 b'revision'
               ])
             },
             b'noderange': {
               b'default': None,
               b'required': False,
               b'type': b'list'
             },
             b'nodes': {
               b'default': None,
               b'required': False,
               b'type': b'list'
             },
             b'nodesdepth': {
               b'default': None,
               b'required': False,
               b'type': b'int'
             }
           },
           b'permissions': [
             b'pull'
           ]
         },
         b'filedata': {
           b'args': {
             b'fields': {
               b'default': set([]),
               b'required': False,
               b'type': b'set',
               b'validvalues': set([
                 b'parents',
                 b'revision'
               ])
             },
             b'haveparents': {
               b'default': False,
               b'required': False,
               b'type': b'bool'
             },
             b'nodes': {
               b'required': True,
               b'type': b'list'
             },
             b'path': {
               b'required': True,
               b'type': b'bytes'
             }
           },
           b'permissions': [
             b'pull'
           ]
         },
         b'heads': {
           b'args': {
             b'publiconly': {
               b'default': False,
               b'required': False,
               b'type': b'bool'
             }
           },
           b'permissions': [
             b'pull'
           ]
         },
         b'known': {
           b'args': {
             b'nodes': {
               b'default': [],
               b'required': False,
               b'type': b'list'
             }
           },
           b'permissions': [
             b'pull'
           ]
         },
         b'listkeys': {
           b'args': {
             b'namespace': {
               b'required': True,
               b'type': b'bytes'
             }
           },
           b'permissions': [
             b'pull'
           ]
         },
         b'lookup': {
           b'args': {
             b'key': {
               b'required': True,
               b'type': b'bytes'
             }
           },
           b'permissions': [
             b'pull'
           ]
         },
         b'manifestdata': {
           b'args': {
             b'fields': {
               b'default': set([]),
               b'required': False,
               b'type': b'set',
               b'validvalues': set([
                 b'parents',
                 b'revision'
               ])
             },
             b'haveparents': {
               b'default': False,
               b'required': False,
               b'type': b'bool'
             },
             b'nodes': {
               b'required': True,
               b'type': b'list'
             },
             b'tree': {
               b'required': True,
               b'type': b'bytes'
             }
           },
           b'permissions': [
             b'pull'
-          ]
+          ],
+          b'recommendedbatchsize': 100000
         },
         b'pushkey': {
           b'args': {
             b'key': {
               b'required': True,
               b'type': b'bytes'
             },
             b'namespace': {
               b'required': True,
               b'type': b'bytes'
             },
             b'new': {
               b'required': True,
               b'type': b'bytes'
             },
             b'old': {
               b'required': True,
               b'type': b'bytes'
             }
           },
           b'permissions': [
             b'push'
           ]
         }
       },
       b'framingmediatypes': [
         b'application/mercurial-exp-framing-0006'
       ],
       b'pathfilterprefixes': set([
         b'path:',
         b'rootfilesin:'
       ]),
       b'rawrepoformats': [
         b'generaldelta',
         b'revlogv1'
       ],
       b'redirect': {
         b'hashes': [
           b'sha256',
           b'sha1'
         ],
         b'targets': [
           {
             b'name': b'target-bad-tls',
             b'protocol': b'https',
             b'tlsversions': [
               b'42',
               b'39'
             ],
             b'uris': [
               b'https://example.com/'
             ]
           }
         ]
       }
     }
   ]
   (sent 2 HTTP requests and * bytes; received * bytes in responses) (glob)
 
 Set up the server to issue content redirects to its built-in API server.
 
   $ cat > redirects.py << EOF
   > [
   >   {
   >     b'name': b'local',
   >     b'protocol': b'http',
   >     b'uris': [b'http://example.com/'],
   >   },
   > ]
   > EOF
 
 Request to eventual cache URL should return 404 (validating the cache server works)
 
   $ sendhttpraw << EOF
   > httprequest GET api/simplecache/missingkey
   >     user-agent: test
   > EOF
   using raw connection to peer
   s>     GET /api/simplecache/missingkey HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     user-agent: test\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
   s>     \r\n
   s> makefile('rb', None)
   s>     HTTP/1.1 404 Not Found\r\n
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     Content-Type: text/plain\r\n
   s>     Content-Length: 22\r\n
   s>     \r\n
   s>     key not found in cache
 
 Send a cacheable request
 
   $ sendhttpv2peer << EOF
   > command manifestdata
   >     nodes eval:[b'\x99\x2f\x47\x79\x02\x9a\x3d\xf8\xd0\x66\x6d\x00\xbb\x92\x4f\x69\x63\x4e\x26\x41']
   >     tree eval:b''
   >     fields eval:[b'parents']
   > EOF
   creating http peer for wire protocol version 2
   sending manifestdata command
   response: gen[
     {
       b'totalitems': 1
     },
     {
       b'node': b'\x99/Gy\x02\x9a=\xf8\xd0fm\x00\xbb\x92OicN&A',
       b'parents': [
         b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00',
         b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
       ]
     }
   ]
 
 Cached entry should be available on server
 
   $ sendhttpraw << EOF
   > httprequest GET api/simplecache/64b3162af49ea3c88e8ce2785e03ed7b88a2d6ca
   >     user-agent: test
   > EOF
   using raw connection to peer
   s>     GET /api/simplecache/64b3162af49ea3c88e8ce2785e03ed7b88a2d6ca HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     user-agent: test\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
   s>     \r\n
   s> makefile('rb', None)
   s>     HTTP/1.1 200 OK\r\n
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     Content-Type: application/mercurial-cbor\r\n
   s>     Content-Length: 91\r\n
   s>     \r\n
   s>     \xa1Jtotalitems\x01\xa2DnodeT\x99/Gy\x02\x9a=\xf8\xd0fm\x00\xbb\x92OicN&AGparents\x82T\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00T\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00
   cbor> [
     {
       b'totalitems': 1
     },
     {
       b'node': b'\x99/Gy\x02\x9a=\xf8\xd0fm\x00\xbb\x92OicN&A',
       b'parents': [
         b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00',
         b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
       ]
     }
   ]
 
 2nd request should result in content redirect response
 
   $ sendhttpv2peer << EOF
   > command manifestdata
   >     nodes eval:[b'\x99\x2f\x47\x79\x02\x9a\x3d\xf8\xd0\x66\x6d\x00\xbb\x92\x4f\x69\x63\x4e\x26\x41']
   >     tree eval:b''
   >     fields eval:[b'parents']
   > EOF
   creating http peer for wire protocol version 2
   sending manifestdata command
   response: gen[
     {
       b'totalitems': 1
     },
     {
       b'node': b'\x99/Gy\x02\x9a=\xf8\xd0fm\x00\xbb\x92OicN&A',
       b'parents': [
         b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00',
         b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
       ]
     }
   ]
 
   $ cat error.log
   $ killdaemons.py
 
   $ cat .hg/blackbox.log
   *> cacher constructed for manifestdata (glob)
   *> cache miss for 64b3162af49ea3c88e8ce2785e03ed7b88a2d6ca (glob)
   *> storing cache entry for 64b3162af49ea3c88e8ce2785e03ed7b88a2d6ca (glob)
   *> cacher constructed for manifestdata (glob)
   *> cache hit for 64b3162af49ea3c88e8ce2785e03ed7b88a2d6ca (glob)
   *> sending content redirect for 64b3162af49ea3c88e8ce2785e03ed7b88a2d6ca to http://*:$HGPORT/api/simplecache/64b3162af49ea3c88e8ce2785e03ed7b88a2d6ca (glob)