sshserver: flush stream after command dispatch

I am not sure why this is not working as expected, but without this client might
not see some important output. Without this patch moving some output at
transaction closing time makes it disapear for ssh client in various sitaution.

mercurial/wireprotoserver.py

@@ -1,804 +1,806 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 struct
 import sys
 import threading
 
 from .i18n import _
 from . import (
     encoding,
     error,
     pycompat,
     util,
     wireprototypes,
     wireprotov1server,
     wireprotov2server,
 )
 from .interfaces import (
     util as interfaceutil,
 )
 from .utils import (
     cborutil,
     compression,
 )
 
 stringio = util.stringio
 
 urlerr = util.urlerr
 urlreq = util.urlreq
 
 HTTP_OK = 200
 
 HGTYPE = 'application/mercurial-0.1'
 HGTYPE2 = 'application/mercurial-0.2'
 HGERRTYPE = 'application/hg-error'
 
 SSHV1 = wireprototypes.SSHV1
 SSHV2 = wireprototypes.SSHV2
 
 def decodevaluefromheaders(req, headerprefix):
     """Decode a long value from multiple HTTP request headers.
 
     Returns the value as a bytes, not a str.
     """
     chunks = []
     i = 1
     while True:
         v = req.headers.get(b'%s-%d' % (headerprefix, i))
         if v is None:
             break
         chunks.append(pycompat.bytesurl(v))
         i += 1
 
     return ''.join(chunks)
 
 @interfaceutil.implementer(wireprototypes.baseprotocolhandler)
 class httpv1protocolhandler(object):
     def __init__(self, req, ui, checkperm):
         self._req = req
         self._ui = ui
         self._checkperm = checkperm
         self._protocaps = None
 
     @property
     def name(self):
         return 'http-v1'
 
     def getargs(self, args):
         knownargs = self._args()
         data = {}
         keys = args.split()
         for k in keys:
             if k == '*':
                 star = {}
                 for key in knownargs.keys():
                     if key != 'cmd' and key not in keys:
                         star[key] = knownargs[key][0]
                 data['*'] = star
             else:
                 data[k] = knownargs[k][0]
         return [data[k] for k in keys]
 
     def _args(self):
         args = self._req.qsparams.asdictoflists()
         postlen = int(self._req.headers.get(b'X-HgArgs-Post', 0))
         if postlen:
             args.update(urlreq.parseqs(
                 self._req.bodyfh.read(postlen), keep_blank_values=True))
             return args
 
         argvalue = decodevaluefromheaders(self._req, b'X-HgArg')
         args.update(urlreq.parseqs(argvalue, keep_blank_values=True))
         return args
 
     def getprotocaps(self):
         if self._protocaps is None:
             value = decodevaluefromheaders(self._req, b'X-HgProto')
             self._protocaps = set(value.split(' '))
         return self._protocaps
 
     def getpayload(self):
         # Existing clients *always* send Content-Length.
         length = int(self._req.headers[b'Content-Length'])
 
         # If httppostargs is used, we need to read Content-Length
         # minus the amount that was consumed by args.
         length -= int(self._req.headers.get(b'X-HgArgs-Post', 0))
         return util.filechunkiter(self._req.bodyfh, limit=length)
 
     @contextlib.contextmanager
     def mayberedirectstdio(self):
         oldout = self._ui.fout
         olderr = self._ui.ferr
 
         out = util.stringio()
 
         try:
             self._ui.fout = out
             self._ui.ferr = out
             yield out
         finally:
             self._ui.fout = oldout
             self._ui.ferr = olderr
 
     def client(self):
         return 'remote:%s:%s:%s' % (
             self._req.urlscheme,
             urlreq.quote(self._req.remotehost or ''),
             urlreq.quote(self._req.remoteuser or ''))
 
     def addcapabilities(self, repo, caps):
         caps.append(b'batch')
 
         caps.append('httpheader=%d' %
                     repo.ui.configint('server', 'maxhttpheaderlen'))
         if repo.ui.configbool('experimental', 'httppostargs'):
             caps.append('httppostargs')
 
         # FUTURE advertise 0.2rx once support is implemented
         # FUTURE advertise minrx and mintx after consulting config option
         caps.append('httpmediatype=0.1rx,0.1tx,0.2tx')
 
         compengines = wireprototypes.supportedcompengines(repo.ui,
             compression.SERVERROLE)
         if compengines:
             comptypes = ','.join(urlreq.quote(e.wireprotosupport().name)
                                  for e in compengines)
             caps.append('compression=%s' % comptypes)
 
         return caps
 
     def checkperm(self, perm):
         return self._checkperm(perm)
 
 # This method exists mostly so that extensions like remotefilelog can
 # disable a kludgey legacy method only over http. As of early 2018,
 # there are no other known users, so with any luck we can discard this
 # hook if remotefilelog becomes a first-party extension.
 def iscmd(cmd):
     return cmd in wireprotov1server.commands
 
 def handlewsgirequest(rctx, req, res, checkperm):
     """Possibly process a wire protocol request.
 
     If the current request is a wire protocol request, the request is
     processed by this function.
 
     ``req`` is a ``parsedrequest`` instance.
     ``res`` is a ``wsgiresponse`` instance.
 
     Returns a bool indicating if the request was serviced. If set, the caller
     should stop processing the request, as a response has already been issued.
     """
     # Avoid cycle involving hg module.
     from .hgweb import common as hgwebcommon
 
     repo = rctx.repo
 
     # HTTP version 1 wire protocol requests are denoted by a "cmd" query
     # string parameter. If it isn't present, this isn't a wire protocol
     # request.
     if 'cmd' not in req.qsparams:
         return False
 
     cmd = req.qsparams['cmd']
 
     # The "cmd" request parameter is used by both the wire protocol and hgweb.
     # While not all wire protocol commands are available for all transports,
     # if we see a "cmd" value that resembles a known wire protocol command, we
     # route it to a protocol handler. This is better than routing possible
     # wire protocol requests to hgweb because it prevents hgweb from using
     # known wire protocol commands and it is less confusing for machine
     # clients.
     if not iscmd(cmd):
         return False
 
     # The "cmd" query string argument is only valid on the root path of the
     # repo. e.g. ``/?cmd=foo``, ``/repo?cmd=foo``. URL paths within the repo
     # like ``/blah?cmd=foo`` are not allowed. So don't recognize the request
     # in this case. We send an HTTP 404 for backwards compatibility reasons.
     if req.dispatchpath:
         res.status = hgwebcommon.statusmessage(404)
         res.headers['Content-Type'] = HGTYPE
         # TODO This is not a good response to issue for this request. This
         # is mostly for BC for now.
         res.setbodybytes('0\n%s\n' % b'Not Found')
         return True
 
     proto = httpv1protocolhandler(req, repo.ui,
                                   lambda perm: checkperm(rctx, req, perm))
 
     # The permissions checker should be the only thing that can raise an
     # ErrorResponse. It is kind of a layer violation to catch an hgweb
     # exception here. So consider refactoring into a exception type that
     # is associated with the wire protocol.
     try:
         _callhttp(repo, req, res, proto, cmd)
     except hgwebcommon.ErrorResponse as e:
         for k, v in e.headers:
             res.headers[k] = v
         res.status = hgwebcommon.statusmessage(e.code, pycompat.bytestr(e))
         # TODO This response body assumes the failed command was
         # "unbundle." That assumption is not always valid.
         res.setbodybytes('0\n%s\n' % pycompat.bytestr(e))
 
     return True
 
 def _availableapis(repo):
     apis = set()
 
     # Registered APIs are made available via config options of the name of
     # the protocol.
     for k, v in API_HANDLERS.items():
         section, option = v['config']
         if repo.ui.configbool(section, option):
             apis.add(k)
 
     return apis
 
 def handlewsgiapirequest(rctx, req, res, checkperm):
     """Handle requests to /api/*."""
     assert req.dispatchparts[0] == b'api'
 
     repo = rctx.repo
 
     # This whole URL space is experimental for now. But we want to
     # reserve the URL space. So, 404 all URLs if the feature isn't enabled.
     if not repo.ui.configbool('experimental', 'web.apiserver'):
         res.status = b'404 Not Found'
         res.headers[b'Content-Type'] = b'text/plain'
         res.setbodybytes(_('Experimental API server endpoint not enabled'))
         return
 
     # The URL space is /api/<protocol>/*. The structure of URLs under varies
     # by <protocol>.
 
     availableapis = _availableapis(repo)
 
     # Requests to /api/ list available APIs.
     if req.dispatchparts == [b'api']:
         res.status = b'200 OK'
         res.headers[b'Content-Type'] = b'text/plain'
         lines = [_('APIs can be accessed at /api/<name>, where <name> can be '
                    'one of the following:\n')]
         if availableapis:
             lines.extend(sorted(availableapis))
         else:
             lines.append(_('(no available APIs)\n'))
         res.setbodybytes(b'\n'.join(lines))
         return
 
     proto = req.dispatchparts[1]
 
     if proto not in API_HANDLERS:
         res.status = b'404 Not Found'
         res.headers[b'Content-Type'] = b'text/plain'
         res.setbodybytes(_('Unknown API: %s\nKnown APIs: %s') % (
             proto, b', '.join(sorted(availableapis))))
         return
 
     if proto not in availableapis:
         res.status = b'404 Not Found'
         res.headers[b'Content-Type'] = b'text/plain'
         res.setbodybytes(_('API %s not enabled\n') % proto)
         return
 
     API_HANDLERS[proto]['handler'](rctx, req, res, checkperm,
                                    req.dispatchparts[2:])
 
 # Maps API name to metadata so custom API can be registered.
 # Keys are:
 #
 # config
 #    Config option that controls whether service is enabled.
 # handler
 #    Callable receiving (rctx, req, res, checkperm, urlparts) that is called
 #    when a request to this API is received.
 # apidescriptor
 #    Callable receiving (req, repo) that is called to obtain an API
 #    descriptor for this service. The response must be serializable to CBOR.
 API_HANDLERS = {
     wireprotov2server.HTTP_WIREPROTO_V2: {
         'config': ('experimental', 'web.api.http-v2'),
         'handler': wireprotov2server.handlehttpv2request,
         'apidescriptor': wireprotov2server.httpv2apidescriptor,
     },
 }
 
 def _httpresponsetype(ui, proto, prefer_uncompressed):
     """Determine the appropriate response type and compression settings.
 
     Returns a tuple of (mediatype, compengine, engineopts).
     """
     # Determine the response media type and compression engine based
     # on the request parameters.
 
     if '0.2' in proto.getprotocaps():
         # All clients are expected to support uncompressed data.
         if prefer_uncompressed:
             return HGTYPE2, compression._noopengine(), {}
 
         # Now find an agreed upon compression format.
         compformats = wireprotov1server.clientcompressionsupport(proto)
         for engine in wireprototypes.supportedcompengines(ui,
                 compression.SERVERROLE):
             if engine.wireprotosupport().name in compformats:
                 opts = {}
                 level = ui.configint('server', '%slevel' % engine.name())
                 if level is not None:
                     opts['level'] = level
 
                 return HGTYPE2, engine, opts
 
         # No mutually supported compression format. Fall back to the
         # legacy protocol.
 
     # Don't allow untrusted settings because disabling compression or
     # setting a very high compression level could lead to flooding
     # the server's network or CPU.
     opts = {'level': ui.configint('server', 'zliblevel')}
     return HGTYPE, util.compengines['zlib'], opts
 
 def processcapabilitieshandshake(repo, req, res, proto):
     """Called during a ?cmd=capabilities request.
 
     If the client is advertising support for a newer protocol, we send
     a CBOR response with information about available services. If no
     advertised services are available, we don't handle the request.
     """
     # Fall back to old behavior unless the API server is enabled.
     if not repo.ui.configbool('experimental', 'web.apiserver'):
         return False
 
     clientapis = decodevaluefromheaders(req, b'X-HgUpgrade')
     protocaps = decodevaluefromheaders(req, b'X-HgProto')
     if not clientapis or not protocaps:
         return False
 
     # We currently only support CBOR responses.
     protocaps = set(protocaps.split(' '))
     if b'cbor' not in protocaps:
         return False
 
     descriptors = {}
 
     for api in sorted(set(clientapis.split()) & _availableapis(repo)):
         handler = API_HANDLERS[api]
 
         descriptorfn = handler.get('apidescriptor')
         if not descriptorfn:
             continue
 
         descriptors[api] = descriptorfn(req, repo)
 
     v1caps = wireprotov1server.dispatch(repo, proto, 'capabilities')
     assert isinstance(v1caps, wireprototypes.bytesresponse)
 
     m = {
         # TODO allow this to be configurable.
         'apibase': 'api/',
         'apis': descriptors,
         'v1capabilities': v1caps.data,
     }
 
     res.status = b'200 OK'
     res.headers[b'Content-Type'] = b'application/mercurial-cbor'
     res.setbodybytes(b''.join(cborutil.streamencode(m)))
 
     return True
 
 def _callhttp(repo, req, res, proto, cmd):
     # Avoid cycle involving hg module.
     from .hgweb import common as hgwebcommon
 
     def genversion2(gen, engine, engineopts):
         # application/mercurial-0.2 always sends a payload header
         # identifying the compression engine.
         name = engine.wireprotosupport().name
         assert 0 < len(name) < 256
         yield struct.pack('B', len(name))
         yield name
 
         for chunk in gen:
             yield chunk
 
     def setresponse(code, contenttype, bodybytes=None, bodygen=None):
         if code == HTTP_OK:
             res.status = '200 Script output follows'
         else:
             res.status = hgwebcommon.statusmessage(code)
 
         res.headers['Content-Type'] = contenttype
 
         if bodybytes is not None:
             res.setbodybytes(bodybytes)
         if bodygen is not None:
             res.setbodygen(bodygen)
 
     if not wireprotov1server.commands.commandavailable(cmd, proto):
         setresponse(HTTP_OK, HGERRTYPE,
                     _('requested wire protocol command is not available over '
                       'HTTP'))
         return
 
     proto.checkperm(wireprotov1server.commands[cmd].permission)
 
     # Possibly handle a modern client wanting to switch protocols.
     if (cmd == 'capabilities' and
         processcapabilitieshandshake(repo, req, res, proto)):
 
         return
 
     rsp = wireprotov1server.dispatch(repo, proto, cmd)
 
     if isinstance(rsp, bytes):
         setresponse(HTTP_OK, HGTYPE, bodybytes=rsp)
     elif isinstance(rsp, wireprototypes.bytesresponse):
         setresponse(HTTP_OK, HGTYPE, bodybytes=rsp.data)
     elif isinstance(rsp, wireprototypes.streamreslegacy):
         setresponse(HTTP_OK, HGTYPE, bodygen=rsp.gen)
     elif isinstance(rsp, wireprototypes.streamres):
         gen = rsp.gen
 
         # This code for compression should not be streamres specific. It
         # is here because we only compress streamres at the moment.
         mediatype, engine, engineopts = _httpresponsetype(
             repo.ui, proto, rsp.prefer_uncompressed)
         gen = engine.compressstream(gen, engineopts)
 
         if mediatype == HGTYPE2:
             gen = genversion2(gen, engine, engineopts)
 
         setresponse(HTTP_OK, mediatype, bodygen=gen)
     elif isinstance(rsp, wireprototypes.pushres):
         rsp = '%d\n%s' % (rsp.res, rsp.output)
         setresponse(HTTP_OK, HGTYPE, bodybytes=rsp)
     elif isinstance(rsp, wireprototypes.pusherr):
         rsp = '0\n%s\n' % rsp.res
         res.drain = True
         setresponse(HTTP_OK, HGTYPE, bodybytes=rsp)
     elif isinstance(rsp, wireprototypes.ooberror):
         setresponse(HTTP_OK, HGERRTYPE, bodybytes=rsp.message)
     else:
         raise error.ProgrammingError('hgweb.protocol internal failure', rsp)
 
 def _sshv1respondbytes(fout, value):
     """Send a bytes response for protocol version 1."""
     fout.write('%d\n' % len(value))
     fout.write(value)
     fout.flush()
 
 def _sshv1respondstream(fout, source):
     write = fout.write
     for chunk in source.gen:
         write(chunk)
     fout.flush()
 
 def _sshv1respondooberror(fout, ferr, rsp):
     ferr.write(b'%s\n-\n' % rsp)
     ferr.flush()
     fout.write(b'\n')
     fout.flush()
 
 @interfaceutil.implementer(wireprototypes.baseprotocolhandler)
 class sshv1protocolhandler(object):
     """Handler for requests services via version 1 of SSH protocol."""
     def __init__(self, ui, fin, fout):
         self._ui = ui
         self._fin = fin
         self._fout = fout
         self._protocaps = set()
 
     @property
     def name(self):
         return wireprototypes.SSHV1
 
     def getargs(self, args):
         data = {}
         keys = args.split()
         for n in pycompat.xrange(len(keys)):
             argline = self._fin.readline()[:-1]
             arg, l = argline.split()
             if arg not in keys:
                 raise error.Abort(_("unexpected parameter %r") % arg)
             if arg == '*':
                 star = {}
                 for k in pycompat.xrange(int(l)):
                     argline = self._fin.readline()[:-1]
                     arg, l = argline.split()
                     val = self._fin.read(int(l))
                     star[arg] = val
                 data['*'] = star
             else:
                 val = self._fin.read(int(l))
                 data[arg] = val
         return [data[k] for k in keys]
 
     def getprotocaps(self):
         return self._protocaps
 
     def getpayload(self):
         # We initially send an empty response. This tells the client it is
         # OK to start sending data. If a client sees any other response, it
         # interprets it as an error.
         _sshv1respondbytes(self._fout, b'')
 
         # The file is in the form:
         #
         # <chunk size>\n<chunk>
         # ...
         # 0\n
         count = int(self._fin.readline())
         while count:
             yield self._fin.read(count)
             count = int(self._fin.readline())
 
     @contextlib.contextmanager
     def mayberedirectstdio(self):
         yield None
 
     def client(self):
         client = encoding.environ.get('SSH_CLIENT', '').split(' ', 1)[0]
         return 'remote:ssh:' + client
 
     def addcapabilities(self, repo, caps):
         if self.name == wireprototypes.SSHV1:
             caps.append(b'protocaps')
         caps.append(b'batch')
         return caps
 
     def checkperm(self, perm):
         pass
 
 class sshv2protocolhandler(sshv1protocolhandler):
     """Protocol handler for version 2 of the SSH protocol."""
 
     @property
     def name(self):
         return wireprototypes.SSHV2
 
     def addcapabilities(self, repo, caps):
         return caps
 
 def _runsshserver(ui, repo, fin, fout, ev):
     # This function operates like a state machine of sorts. The following
     # states are defined:
     #
     # protov1-serving
     #    Server is in protocol version 1 serving mode. Commands arrive on
     #    new lines. These commands are processed in this state, one command
     #    after the other.
     #
     # protov2-serving
     #    Server is in protocol version 2 serving mode.
     #
     # upgrade-initial
     #    The server is going to process an upgrade request.
     #
     # upgrade-v2-filter-legacy-handshake
     #    The protocol is being upgraded to version 2. The server is expecting
     #    the legacy handshake from version 1.
     #
     # upgrade-v2-finish
     #    The upgrade to version 2 of the protocol is imminent.
     #
     # shutdown
     #    The server is shutting down, possibly in reaction to a client event.
     #
     # And here are their transitions:
     #
     # protov1-serving -> shutdown
     #    When server receives an empty request or encounters another
     #    error.
     #
     # protov1-serving -> upgrade-initial
     #    An upgrade request line was seen.
     #
     # upgrade-initial -> upgrade-v2-filter-legacy-handshake
     #    Upgrade to version 2 in progress. Server is expecting to
     #    process a legacy handshake.
     #
     # upgrade-v2-filter-legacy-handshake -> shutdown
     #    Client did not fulfill upgrade handshake requirements.
     #
     # upgrade-v2-filter-legacy-handshake -> upgrade-v2-finish
     #    Client fulfilled version 2 upgrade requirements. Finishing that
     #    upgrade.
     #
     # upgrade-v2-finish -> protov2-serving
     #    Protocol upgrade to version 2 complete. Server can now speak protocol
     #    version 2.
     #
     # protov2-serving -> protov1-serving
     #    Ths happens by default since protocol version 2 is the same as
     #    version 1 except for the handshake.
 
     state = 'protov1-serving'
     proto = sshv1protocolhandler(ui, fin, fout)
     protoswitched = False
 
     while not ev.is_set():
         if state == 'protov1-serving':
             # Commands are issued on new lines.
             request = fin.readline()[:-1]
 
             # Empty lines signal to terminate the connection.
             if not request:
                 state = 'shutdown'
                 continue
 
             # It looks like a protocol upgrade request. Transition state to
             # handle it.
             if request.startswith(b'upgrade '):
                 if protoswitched:
                     _sshv1respondooberror(fout, ui.ferr,
                                           b'cannot upgrade protocols multiple '
                                           b'times')
                     state = 'shutdown'
                     continue
 
                 state = 'upgrade-initial'
                 continue
 
             available = wireprotov1server.commands.commandavailable(
                 request, proto)
 
             # This command isn't available. Send an empty response and go
             # back to waiting for a new command.
             if not available:
                 _sshv1respondbytes(fout, b'')
                 continue
 
             rsp = wireprotov1server.dispatch(repo, proto, request)
+            repo.ui.fout.flush()
+            repo.ui.ferr.flush()
 
             if isinstance(rsp, bytes):
                 _sshv1respondbytes(fout, rsp)
             elif isinstance(rsp, wireprototypes.bytesresponse):
                 _sshv1respondbytes(fout, rsp.data)
             elif isinstance(rsp, wireprototypes.streamres):
                 _sshv1respondstream(fout, rsp)
             elif isinstance(rsp, wireprototypes.streamreslegacy):
                 _sshv1respondstream(fout, rsp)
             elif isinstance(rsp, wireprototypes.pushres):
                 _sshv1respondbytes(fout, b'')
                 _sshv1respondbytes(fout, b'%d' % rsp.res)
             elif isinstance(rsp, wireprototypes.pusherr):
                 _sshv1respondbytes(fout, rsp.res)
             elif isinstance(rsp, wireprototypes.ooberror):
                 _sshv1respondooberror(fout, ui.ferr, rsp.message)
             else:
                 raise error.ProgrammingError('unhandled response type from '
                                              'wire protocol command: %s' % rsp)
 
         # For now, protocol version 2 serving just goes back to version 1.
         elif state == 'protov2-serving':
             state = 'protov1-serving'
             continue
 
         elif state == 'upgrade-initial':
             # We should never transition into this state if we've switched
             # protocols.
             assert not protoswitched
             assert proto.name == wireprototypes.SSHV1
 
             # Expected: upgrade <token> <capabilities>
             # If we get something else, the request is malformed. It could be
             # from a future client that has altered the upgrade line content.
             # We treat this as an unknown command.
             try:
                 token, caps = request.split(b' ')[1:]
             except ValueError:
                 _sshv1respondbytes(fout, b'')
                 state = 'protov1-serving'
                 continue
 
             # Send empty response if we don't support upgrading protocols.
             if not ui.configbool('experimental', 'sshserver.support-v2'):
                 _sshv1respondbytes(fout, b'')
                 state = 'protov1-serving'
                 continue
 
             try:
                 caps = urlreq.parseqs(caps)
             except ValueError:
                 _sshv1respondbytes(fout, b'')
                 state = 'protov1-serving'
                 continue
 
             # We don't see an upgrade request to protocol version 2. Ignore
             # the upgrade request.
             wantedprotos = caps.get(b'proto', [b''])[0]
             if SSHV2 not in wantedprotos:
                 _sshv1respondbytes(fout, b'')
                 state = 'protov1-serving'
                 continue
 
             # It looks like we can honor this upgrade request to protocol 2.
             # Filter the rest of the handshake protocol request lines.
             state = 'upgrade-v2-filter-legacy-handshake'
             continue
 
         elif state == 'upgrade-v2-filter-legacy-handshake':
             # Client should have sent legacy handshake after an ``upgrade``
             # request. Expected lines:
             #
             #    hello
             #    between
             #    pairs 81
             #    0000...-0000...
 
             ok = True
             for line in (b'hello', b'between', b'pairs 81'):
                 request = fin.readline()[:-1]
 
                 if request != line:
                     _sshv1respondooberror(fout, ui.ferr,
                                           b'malformed handshake protocol: '
                                           b'missing %s' % line)
                     ok = False
                     state = 'shutdown'
                     break
 
             if not ok:
                 continue
 
             request = fin.read(81)
             if request != b'%s-%s' % (b'0' * 40, b'0' * 40):
                 _sshv1respondooberror(fout, ui.ferr,
                                       b'malformed handshake protocol: '
                                       b'missing between argument value')
                 state = 'shutdown'
                 continue
 
             state = 'upgrade-v2-finish'
             continue
 
         elif state == 'upgrade-v2-finish':
             # Send the upgrade response.
             fout.write(b'upgraded %s %s\n' % (token, SSHV2))
             servercaps = wireprotov1server.capabilities(repo, proto)
             rsp = b'capabilities: %s' % servercaps.data
             fout.write(b'%d\n%s\n' % (len(rsp), rsp))
             fout.flush()
 
             proto = sshv2protocolhandler(ui, fin, fout)
             protoswitched = True
 
             state = 'protov2-serving'
             continue
 
         elif state == 'shutdown':
             break
 
         else:
             raise error.ProgrammingError('unhandled ssh server state: %s' %
                                          state)
 
 class sshserver(object):
     def __init__(self, ui, repo, logfh=None):
         self._ui = ui
         self._repo = repo
         self._fin, self._fout = ui.protectfinout()
 
         # Log write I/O to stdout and stderr if configured.
         if logfh:
             self._fout = util.makeloggingfileobject(
                 logfh, self._fout, 'o', logdata=True)
             ui.ferr = util.makeloggingfileobject(
                 logfh, ui.ferr, 'e', logdata=True)
 
     def serve_forever(self):
         self.serveuntil(threading.Event())
         self._ui.restorefinout(self._fin, self._fout)
         sys.exit(0)
 
     def serveuntil(self, ev):
         """Serve until a threading.Event is set."""
         _runsshserver(self._ui, self._repo, self._fin, self._fout, ev)

tests/test-bookmarks-corner-case.t

@@ -1,246 +1,246 b''
 ================================
 Test corner case around bookmark
 ================================
 
 This test file is meant to gather test around bookmark that are specific
  enough to not find a place elsewhere.
 
 Test bookmark/changelog race condition
 ======================================
 
 The data from the bookmark file are filtered to only contains bookmark with
 node known to the changelog. If the cache invalidation between these two bits
 goes wrong, bookmark can be dropped.
 
 global setup
 ------------
 
   $ cat >> $HGRCPATH << EOF
   > [ui]
   > ssh = "$PYTHON" "$TESTDIR/dummyssh"
   > [server]
   > concurrent-push-mode=check-related
   > EOF
 
 Setup
 -----
 
 initial repository setup
 
   $ hg init bookrace-server
   $ cd bookrace-server
   $ echo a > a
   $ hg add a
   $ hg commit -m root
   $ echo a >> a
   $ hg bookmark book-A
   $ hg commit -m A0
   $ hg up 'desc(root)'
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   (leaving bookmark book-A)
   $ echo b > b
   $ hg add b
   $ hg bookmark book-B
   $ hg commit -m B0
   created new head
   $ hg up null
   0 files updated, 0 files merged, 2 files removed, 0 files unresolved
   (leaving bookmark book-B)
   $ hg phase --public --rev 'all()'
   $ hg log -G
   o  changeset:   2:c79985706978
   |  bookmark:    book-B
   |  tag:         tip
   |  parent:      0:6569b5a81c7e
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     B0
   |
   | o  changeset:   1:39c28d785860
   |/   bookmark:    book-A
   |    user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    summary:     A0
   |
   o  changeset:   0:6569b5a81c7e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     root
   
   $ hg book
      book-A                    1:39c28d785860
      book-B                    2:c79985706978
   $ cd ..
 
 Add new changeset on each bookmark in distinct clones
 
   $ hg clone ssh://user@dummy/bookrace-server client-A
   requesting all changes
   adding changesets
   adding manifests
   adding file changes
   added 3 changesets with 3 changes to 2 files (+1 heads)
   new changesets 6569b5a81c7e:c79985706978
   updating to branch default
   2 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg -R client-A update book-A
   1 files updated, 0 files merged, 1 files removed, 0 files unresolved
   (activating bookmark book-A)
   $ echo a >> client-A/a
   $ hg -R client-A commit -m A1
   $ hg clone ssh://user@dummy/bookrace-server client-B
   requesting all changes
   adding changesets
   adding manifests
   adding file changes
   added 3 changesets with 3 changes to 2 files (+1 heads)
   new changesets 6569b5a81c7e:c79985706978
   updating to branch default
   2 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg -R client-B update book-B
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
   (activating bookmark book-B)
   $ echo b >> client-B/b
   $ hg -R client-B commit -m B1
 
 extension to reproduce the race
 -------------------------------
 
 If two process are pushing we want to make sure the following happens:
 
 * process A read changelog
 * process B to its full push
 * process A read bookmarks
 * process A proceed with rest of the push
 
 We build a server side extension for this purpose
 
   $ cat > bookrace.py << EOF
   > import atexit
   > import os
   > import time
   > from mercurial import bookmarks, error, extensions
   > 
   > def wait(repo):
   >     if not os.path.exists('push-A-started'):
   >         assert repo._currentlock(repo._lockref) is None
   >         assert repo._currentlock(repo._wlockref) is None
   >         repo.ui.status(b'setting raced push up\n')
   >         with open('push-A-started', 'w'):
   >             pass
   >     clock = 300
   >     while not os.path.exists('push-B-done'):
   >         clock -= 1
   >         if clock <= 0:
   >             raise error.Abort("race scenario timed out")
   >         time.sleep(0.1)
   > 
   > def reposetup(ui, repo):
   >     class racedrepo(repo.__class__):
   >         @property
   >         def _bookmarks(self):
   >             wait(self)
   >             return super(racedrepo, self)._bookmarks
   >     repo.__class__ = racedrepo
   > 
   > def e():
   >     with open('push-A-done', 'w'):
   >         pass
   > atexit.register(e)
   > EOF
 
 Actual test
 -----------
 
 Start the raced push.
 
   $ cat >> bookrace-server/.hg/hgrc << EOF
   > [extensions]
   > bookrace=$TESTTMP/bookrace.py
   > EOF
   $ hg push -R client-A -r book-A >push-output.txt 2>&1 &
 
 Wait up to 30 seconds for that push to start.
 
   $ clock=30
   $ while [ ! -f push-A-started ] && [ $clock -gt 0 ] ; do
   >    clock=`expr $clock - 1`
   >    sleep 1
   > done
 
 Do the other push.
 
   $ cat >> bookrace-server/.hg/hgrc << EOF
   > [extensions]
   > bookrace=!
   > EOF
 
   $ hg push -R client-B -r book-B
   pushing to ssh://user@dummy/bookrace-server
   searching for changes
   remote: adding changesets
   remote: adding manifests
   remote: adding file changes
   remote: added 1 changesets with 1 changes to 1 files
   updating bookmark book-B
 
 Signal the raced put that we are done (it waits up to 30 seconds).
 
   $ touch push-B-done
 
 Wait for the raced push to finish (with the remaning of the initial 30 seconds).
 
   $ while [ ! -f push-A-done ] && [ $clock -gt 0 ] ; do
   >    clock=`expr $clock - 1`
   >    sleep 1
   > done
 
 Check raced push output.
 
   $ cat push-output.txt
   pushing to ssh://user@dummy/bookrace-server
   searching for changes
+  remote: setting raced push up
   remote has heads on branch 'default' that are not known locally: f26c3b5167d1
-  remote: setting raced push up
   remote: adding changesets
   remote: adding manifests
   remote: adding file changes
   remote: added 1 changesets with 1 changes to 1 files
   updating bookmark book-A
 
 Check result of the push.
 
   $ hg -R bookrace-server log -G
   o  changeset:   4:9ce3b28c16de
   |  bookmark:    book-A
   |  tag:         tip
   |  parent:      1:39c28d785860
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     A1
   |
   | o  changeset:   3:f26c3b5167d1
   | |  bookmark:    book-B
   | |  user:        test
   | |  date:        Thu Jan 01 00:00:00 1970 +0000
   | |  summary:     B1
   | |
   | o  changeset:   2:c79985706978
   | |  parent:      0:6569b5a81c7e
   | |  user:        test
   | |  date:        Thu Jan 01 00:00:00 1970 +0000
   | |  summary:     B0
   | |
   o |  changeset:   1:39c28d785860
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    summary:     A0
   |
   o  changeset:   0:6569b5a81c7e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     root
   
   $ hg -R bookrace-server book
      book-A                    4:9ce3b28c16de
      book-B                    3:f26c3b5167d1

tests/test-ssh-proto.t

@@ -1,2199 +1,2201 b''
 #require no-chg
 
   $ cat > hgrc-sshv2 << EOF
   > %include $HGRCPATH
   > [experimental]
   > sshpeer.advertise-v2 = true
   > sshserver.support-v2 = true
   > EOF
 
 Helper function to run protocol tests against multiple protocol versions.
 This is easier than using #testcases because managing differences between
 protocols with inline conditional output is hard to read.
 
   $ debugwireproto() {
   >   commands=`cat -`
   >   echo 'testing ssh1'
   >   echo "${commands}" | hg --verbose debugwireproto --localssh
   >   echo ""
   >   echo 'testing ssh2'
   >   echo "${commands}" | HGRCPATH=$TESTTMP/hgrc-sshv2 hg --verbose debugwireproto --localssh
   > }
 
   $ cat >> $HGRCPATH << EOF
   > [ui]
   > ssh = "$PYTHON" "$TESTDIR/dummyssh"
   > [devel]
   > debug.peer-request = true
   > [extensions]
   > sshprotoext = $TESTDIR/sshprotoext.py
   > EOF
 
   $ hg init server
   $ cd server
   $ echo 0 > foo
   $ hg -q add foo
   $ hg commit -m initial
 
 A no-op connection performs a handshake
 
   $ hg debugwireproto --localssh << EOF
   > EOF
   creating ssh peer from handshake results
 
 Raw peers don't perform any activity
 
   $ hg debugwireproto --localssh --peer raw << EOF
   > EOF
   using raw connection to peer
   $ hg debugwireproto --localssh --peer ssh1 << EOF
   > EOF
   creating ssh peer for wire protocol version 1
   $ hg debugwireproto --localssh --peer ssh2 << EOF
   > EOF
   creating ssh peer for wire protocol version 2
 
 Test a normal behaving server, for sanity
 
   $ cd ..
 
   $ hg --debug debugpeer ssh://user@dummy/server
   running * "*/tests/dummyssh" 'user@dummy' 'hg -R server serve --stdio' (glob) (no-windows !)
   running * "*\tests/dummyssh" "user@dummy" "hg -R server serve --stdio" (glob) (windows !)
   devel-peer-request: hello+between
   devel-peer-request:   pairs: 81 bytes
   sending hello command
   sending between command
   remote: 440
   remote: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   remote: 1
   devel-peer-request: protocaps
   devel-peer-request:   caps: * bytes (glob)
   sending protocaps command
   url: ssh://user@dummy/server
   local: no
   pushable: yes
 
 Server should answer the "hello" command in isolation
 
   $ hg -R server debugwireproto --localssh --peer raw << EOF
   > raw
   >     hello\n
   > readline
   > readline
   > EOF
   using raw connection to peer
   i> write(6) -> 6:
   i>     hello\n
   o> readline() -> 4:
   o>     440\n
   o> readline() -> 440:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
 
 `hg debugserve --sshstdio` works
 
   $ cd server
   $ hg debugserve --sshstdio << EOF
   > hello
   > EOF
   440
   capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
 
 I/O logging works
 
   $ hg debugserve --sshstdio --logiofd 1 << EOF
   > hello
   > EOF
+  e> flush() -> None
   o> write(4) -> 4:
   o>     440\n
   o> write(440) -> 440:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   440
   capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   o> flush() -> None
 
   $ hg debugserve --sshstdio --logiofile $TESTTMP/io << EOF
   > hello
   > EOF
   440
   capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
 
   $ cat $TESTTMP/io
+  e> flush() -> None
   o> write(4) -> 4:
   o>     440\n
   o> write(440) -> 440:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> flush() -> None
 
   $ cd ..
 
 >=0.9.1 clients send a "hello" + "between" for the null range as part of handshake.
 Server should reply with capabilities and should send "1\n\n" as a successful
 reply with empty response to the "between".
 
   $ hg -R server debugwireproto --localssh --peer raw << EOF
   > raw
   >     hello\n
   > readline
   > readline
   > raw
   >     between\n
   >     pairs 81\n
   >     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   > readline
   > readline
   > EOF
   using raw connection to peer
   i> write(6) -> 6:
   i>     hello\n
   o> readline() -> 4:
   o>     440\n
   o> readline() -> 440:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   i> write(98) -> 98:
   i>     between\n
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   o> readline() -> 2:
   o>     1\n
   o> readline() -> 1:
   o>     \n
 
 SSH banner is not printed by default, ignored by clients
 
   $ SSHSERVERMODE=banner hg debugpeer ssh://user@dummy/server
   url: ssh://user@dummy/server
   local: no
   pushable: yes
 
 --debug will print the banner
 
   $ SSHSERVERMODE=banner hg --debug debugpeer ssh://user@dummy/server
   running * "*/tests/dummyssh" 'user@dummy' 'hg -R server serve --stdio' (glob) (no-windows !)
   running * "*\tests/dummyssh" "user@dummy" "hg -R server serve --stdio" (glob) (windows !)
   devel-peer-request: hello+between
   devel-peer-request:   pairs: 81 bytes
   sending hello command
   sending between command
   remote: banner: line 0
   remote: banner: line 1
   remote: banner: line 2
   remote: banner: line 3
   remote: banner: line 4
   remote: banner: line 5
   remote: banner: line 6
   remote: banner: line 7
   remote: banner: line 8
   remote: banner: line 9
   remote: 440
   remote: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   remote: 1
   devel-peer-request: protocaps
   devel-peer-request:   caps: * bytes (glob)
   sending protocaps command
   url: ssh://user@dummy/server
   local: no
   pushable: yes
 
 And test the banner with the raw protocol
 
   $ SSHSERVERMODE=banner hg -R server debugwireproto --localssh --peer raw << EOF
   > raw
   >     hello\n
   > readline
   > readline
   > readline
   > readline
   > readline
   > readline
   > readline
   > readline
   > readline
   > readline
   > readline
   > readline
   > raw
   >     between\n
   >     pairs 81\n
   >     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   > readline
   > readline
   > EOF
   using raw connection to peer
   i> write(6) -> 6:
   i>     hello\n
   o> readline() -> 15:
   o>     banner: line 0\n
   o> readline() -> 15:
   o>     banner: line 1\n
   o> readline() -> 15:
   o>     banner: line 2\n
   o> readline() -> 15:
   o>     banner: line 3\n
   o> readline() -> 15:
   o>     banner: line 4\n
   o> readline() -> 15:
   o>     banner: line 5\n
   o> readline() -> 15:
   o>     banner: line 6\n
   o> readline() -> 15:
   o>     banner: line 7\n
   o> readline() -> 15:
   o>     banner: line 8\n
   o> readline() -> 15:
   o>     banner: line 9\n
   o> readline() -> 4:
   o>     440\n
   o> readline() -> 440:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   i> write(98) -> 98:
   i>     between\n
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   o> readline() -> 2:
   o>     1\n
   o> readline() -> 1:
   o>     \n
 
 Connecting to a <0.9.1 server that doesn't support the hello command.
 The client should refuse, as we dropped support for connecting to such
 servers.
 
   $ SSHSERVERMODE=no-hello hg --debug debugpeer ssh://user@dummy/server
   running * "*/tests/dummyssh" 'user@dummy' 'hg -R server serve --stdio' (glob) (no-windows !)
   running * "*\tests/dummyssh" "user@dummy" "hg -R server serve --stdio" (glob) (windows !)
   devel-peer-request: hello+between
   devel-peer-request:   pairs: 81 bytes
   sending hello command
   sending between command
   remote: 0
   remote: 1
   abort: no suitable response from remote hg!
   [255]
 
 Sending an unknown command to the server results in an empty response to that command
 
   $ hg -R server debugwireproto --localssh --peer raw << EOF
   > raw
   >     pre-hello\n
   > readline
   > raw
   >     hello\n
   > readline
   > raw
   >     between\n
   >     pairs 81\n
   >     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   > readline
   > readline
   > EOF
   using raw connection to peer
   i> write(10) -> 10:
   i>     pre-hello\n
   o> readline() -> 2:
   o>     0\n
   i> write(6) -> 6:
   i>     hello\n
   o> readline() -> 4:
   o>     440\n
   i> write(98) -> 98:
   i>     between\n
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   o> readline() -> 440:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
 
   $ hg --config sshpeer.mode=extra-handshake-commands --config sshpeer.handshake-mode=pre-no-args --debug debugpeer ssh://user@dummy/server
   running * "*/tests/dummyssh" 'user@dummy' 'hg -R server serve --stdio' (glob) (no-windows !)
   running * "*\tests/dummyssh" "user@dummy" "hg -R server serve --stdio" (glob) (windows !)
   sending no-args command
   devel-peer-request: hello+between
   devel-peer-request:   pairs: 81 bytes
   sending hello command
   sending between command
   remote: 0
   remote: 440
   remote: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   remote: 1
   devel-peer-request: protocaps
   devel-peer-request:   caps: * bytes (glob)
   sending protocaps command
   url: ssh://user@dummy/server
   local: no
   pushable: yes
 
 Send multiple unknown commands before hello
 
   $ hg -R server debugwireproto --localssh --peer raw << EOF
   > raw
   >     unknown1\n
   > readline
   > raw
   >     unknown2\n
   > readline
   > raw
   >     unknown3\n
   > readline
   > raw
   >     hello\n
   > readline
   > readline
   > raw
   >     between\n
   >     pairs 81\n
   >     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   > readline
   > readline
   > EOF
   using raw connection to peer
   i> write(9) -> 9:
   i>     unknown1\n
   o> readline() -> 2:
   o>     0\n
   i> write(9) -> 9:
   i>     unknown2\n
   o> readline() -> 2:
   o>     0\n
   i> write(9) -> 9:
   i>     unknown3\n
   o> readline() -> 2:
   o>     0\n
   i> write(6) -> 6:
   i>     hello\n
   o> readline() -> 4:
   o>     440\n
   o> readline() -> 440:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   i> write(98) -> 98:
   i>     between\n
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   o> readline() -> 2:
   o>     1\n
   o> readline() -> 1:
   o>     \n
 
   $ hg --config sshpeer.mode=extra-handshake-commands --config sshpeer.handshake-mode=pre-multiple-no-args --debug debugpeer ssh://user@dummy/server
   running * "*/tests/dummyssh" 'user@dummy' 'hg -R server serve --stdio' (glob) (no-windows !)
   running * "*\tests/dummyssh" "user@dummy" "hg -R server serve --stdio" (glob) (windows !)
   sending unknown1 command
   sending unknown2 command
   sending unknown3 command
   devel-peer-request: hello+between
   devel-peer-request:   pairs: 81 bytes
   sending hello command
   sending between command
   remote: 0
   remote: 0
   remote: 0
   remote: 440
   remote: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   remote: 1
   devel-peer-request: protocaps
   devel-peer-request:   caps: * bytes (glob)
   sending protocaps command
   url: ssh://user@dummy/server
   local: no
   pushable: yes
 
 Send an unknown command before hello that has arguments
 
   $ cd server
 
   $ hg debugwireproto --localssh --peer raw << EOF
   > raw
   >     with-args\n
   >     foo 13\n
   >     value for foo\n
   >     bar 13\n
   >     value for bar\n
   > readline
   > readline
   > readline
   > readline
   > readline
   > raw
   >     hello\n
   > readline
   > readline
   > raw
   >     between\n
   >     pairs 81\n
   >     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   > readline
   > readline
   > EOF
   using raw connection to peer
   i> write(52) -> 52:
   i>     with-args\n
   i>     foo 13\n
   i>     value for foo\n
   i>     bar 13\n
   i>     value for bar\n
   o> readline() -> 2:
   o>     0\n
   o> readline() -> 2:
   o>     0\n
   o> readline() -> 2:
   o>     0\n
   o> readline() -> 2:
   o>     0\n
   o> readline() -> 2:
   o>     0\n
   i> write(6) -> 6:
   i>     hello\n
   o> readline() -> 4:
   o>     440\n
   o> readline() -> 440:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   i> write(98) -> 98:
   i>     between\n
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   o> readline() -> 2:
   o>     1\n
   o> readline() -> 1:
   o>     \n
 
 Send an unknown command having an argument that looks numeric
 
   $ hg debugwireproto --localssh --peer raw << EOF
   > raw
   >     unknown\n
   >     foo 1\n
   >     0\n
   > readline
   > readline
   > readline
   > raw
   >     hello\n
   > readline
   > readline
   > raw
   >     between\n
   >     pairs 81\n
   >     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   > readline
   > readline
   > EOF
   using raw connection to peer
   i> write(16) -> 16:
   i>     unknown\n
   i>     foo 1\n
   i>     0\n
   o> readline() -> 2:
   o>     0\n
   o> readline() -> 2:
   o>     0\n
   o> readline() -> 2:
   o>     0\n
   i> write(6) -> 6:
   i>     hello\n
   o> readline() -> 4:
   o>     440\n
   o> readline() -> 440:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   i> write(98) -> 98:
   i>     between\n
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   o> readline() -> 2:
   o>     1\n
   o> readline() -> 1:
   o>     \n
 
   $ hg debugwireproto --localssh --peer raw << EOF
   > raw
   >     unknown\n
   >     foo 1\n
   >     1\n
   > readline
   > readline
   > readline
   > raw
   >     hello\n
   > readline
   > readline
   > raw
   >     between\n
   >     pairs 81\n
   >     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   > readline
   > readline
   > EOF
   using raw connection to peer
   i> write(16) -> 16:
   i>     unknown\n
   i>     foo 1\n
   i>     1\n
   o> readline() -> 2:
   o>     0\n
   o> readline() -> 2:
   o>     0\n
   o> readline() -> 2:
   o>     0\n
   i> write(6) -> 6:
   i>     hello\n
   o> readline() -> 4:
   o>     440\n
   o> readline() -> 440:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   i> write(98) -> 98:
   i>     between\n
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   o> readline() -> 2:
   o>     1\n
   o> readline() -> 1:
   o>     \n
 
 When sending a dict argument value, it is serialized to
 "<arg> <item count>" followed by "<key> <len>\n<value>" for each item
 in the dict.
 
 Dictionary value for unknown command
 
   $ hg debugwireproto --localssh --peer raw << EOF
   > raw
   >     unknown\n
   >     dict 3\n
   >     key1 3\n
   >     foo\n
   >     key2 3\n
   >     bar\n
   >     key3 3\n
   >     baz\n
   > readline
   > readline
   > readline
   > readline
   > readline
   > readline
   > readline
   > readline
   > raw
   >     hello\n
   > readline
   > readline
   > EOF
   using raw connection to peer
   i> write(48) -> 48:
   i>     unknown\n
   i>     dict 3\n
   i>     key1 3\n
   i>     foo\n
   i>     key2 3\n
   i>     bar\n
   i>     key3 3\n
   i>     baz\n
   o> readline() -> 2:
   o>     0\n
   o> readline() -> 2:
   o>     0\n
   o> readline() -> 2:
   o>     0\n
   o> readline() -> 2:
   o>     0\n
   o> readline() -> 2:
   o>     0\n
   o> readline() -> 2:
   o>     0\n
   o> readline() -> 2:
   o>     0\n
   o> readline() -> 2:
   o>     0\n
   i> write(6) -> 6:
   i>     hello\n
   o> readline() -> 4:
   o>     440\n
   o> readline() -> 440:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
 
 Incomplete dictionary send
 
   $ hg debugwireproto --localssh --peer raw << EOF
   > raw
   >     unknown\n
   >     dict 3\n
   >     key1 3\n
   >     foo\n
   > readline
   > readline
   > readline
   > readline
   > EOF
   using raw connection to peer
   i> write(26) -> 26:
   i>     unknown\n
   i>     dict 3\n
   i>     key1 3\n
   i>     foo\n
   o> readline() -> 2:
   o>     0\n
   o> readline() -> 2:
   o>     0\n
   o> readline() -> 2:
   o>     0\n
   o> readline() -> 2:
   o>     0\n
 
 Incomplete value send
 
   $ hg debugwireproto --localssh --peer raw << EOF
   > raw
   >     unknown\n
   >     dict 3\n
   >     key1 3\n
   >     fo
   > readline
   > readline
   > readline
   > EOF
   using raw connection to peer
   i> write(24) -> 24:
   i>     unknown\n
   i>     dict 3\n
   i>     key1 3\n
   i>     fo
   o> readline() -> 2:
   o>     0\n
   o> readline() -> 2:
   o>     0\n
   o> readline() -> 2:
   o>     0\n
 
 Send a command line with spaces
 
   $ hg debugwireproto --localssh --peer raw << EOF
   > raw
   >     unknown withspace\n
   > readline
   > raw
   >     hello\n
   > readline
   > readline
   > raw
   >     between\n
   >     pairs 81\n
   >     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   > readline
   > readline
   > EOF
   using raw connection to peer
   i> write(18) -> 18:
   i>     unknown withspace\n
   o> readline() -> 2:
   o>     0\n
   i> write(6) -> 6:
   i>     hello\n
   o> readline() -> 4:
   o>     440\n
   o> readline() -> 440:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   i> write(98) -> 98:
   i>     between\n
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   o> readline() -> 2:
   o>     1\n
   o> readline() -> 1:
   o>     \n
 
   $ hg debugwireproto --localssh --peer raw << EOF
   > raw
   >     unknown with multiple spaces\n
   > readline
   > raw
   >     hello\n
   > readline
   > readline
   > raw
   >     between\n
   >     pairs 81\n
   >     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   > readline
   > EOF
   using raw connection to peer
   i> write(29) -> 29:
   i>     unknown with multiple spaces\n
   o> readline() -> 2:
   o>     0\n
   i> write(6) -> 6:
   i>     hello\n
   o> readline() -> 4:
   o>     440\n
   o> readline() -> 440:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   i> write(98) -> 98:
   i>     between\n
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   o> readline() -> 2:
   o>     1\n
 
   $ hg debugwireproto --localssh --peer raw << EOF
   > raw
   >     unknown with spaces\n
   >     key 10\n
   >     some value\n
   > readline
   > readline
   > readline
   > raw
   >     hello\n
   > readline
   > readline
   > raw
   >     between\n
   >     pairs 81\n
   >     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   > readline
   > readline
   > EOF
   using raw connection to peer
   i> write(38) -> 38:
   i>     unknown with spaces\n
   i>     key 10\n
   i>     some value\n
   o> readline() -> 2:
   o>     0\n
   o> readline() -> 2:
   o>     0\n
   o> readline() -> 2:
   o>     0\n
   i> write(6) -> 6:
   i>     hello\n
   o> readline() -> 4:
   o>     440\n
   o> readline() -> 440:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   i> write(98) -> 98:
   i>     between\n
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   o> readline() -> 2:
   o>     1\n
   o> readline() -> 1:
   o>     \n
 Send an unknown command after the "between"
 
   $ hg debugwireproto --localssh --peer raw << EOF
   > raw
   >     hello\n
   > readline
   > readline
   > raw
   >     between\n
   >     pairs 81\n
   >     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000unknown
   > readline
   > readline
   > EOF
   using raw connection to peer
   i> write(6) -> 6:
   i>     hello\n
   o> readline() -> 4:
   o>     440\n
   o> readline() -> 440:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   i> write(105) -> 105:
   i>     between\n
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000unknown
   o> readline() -> 2:
   o>     1\n
   o> readline() -> 1:
   o>     \n
 
 And one with arguments
 
   $ hg debugwireproto --localssh --peer raw << EOF
   > raw
   >     hello\n
   >     between\n
   >     pairs 81\n
   >     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   > readline
   > readline
   > readline
   > readline
   > raw
   >     unknown\n
   >     foo 5\n
   >     \nvalue\n
   >     bar 3\n
   >     baz\n
   > readline
   > readline
   > readline
   > EOF
   using raw connection to peer
   i> write(104) -> 104:
   i>     hello\n
   i>     between\n
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   o> readline() -> 4:
   o>     440\n
   o> readline() -> 440:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
   o> readline() -> 1:
   o>     \n
   i> write(31) -> 31:
   i>     unknown\n
   i>     foo 5\n
   i>     \n
   i>     value\n
   i>     bar 3\n
   i>     baz\n
   o> readline() -> 2:
   o>     0\n
   o> readline() -> 2:
   o>     0\n
   o> readline() -> 0: 
 
 Send a valid command before the handshake
 
   $ hg debugwireproto --localssh --peer raw << EOF
   > raw
   >     heads\n
   > readline
   > raw
   >     hello\n
   >     between\n
   >     pairs 81\n
   >     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   > readline
   > readline
   > readline
   > readline
   > EOF
   using raw connection to peer
   i> write(6) -> 6:
   i>     heads\n
   o> readline() -> 3:
   o>     41\n
   i> write(104) -> 104:
   i>     hello\n
   i>     between\n
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   o> readline() -> 41:
   o>     68986213bd4485ea51533535e3fc9e78007a711f\n
   o> readline() -> 4:
   o>     440\n
   o> readline() -> 440:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
 
 And a variation that doesn't send the between command
 
   $ hg debugwireproto --localssh --peer raw << EOF
   > raw
   >     heads\n
   > readline
   > raw
   >     hello\n
   > readline
   > readline
   > EOF
   using raw connection to peer
   i> write(6) -> 6:
   i>     heads\n
   o> readline() -> 3:
   o>     41\n
   i> write(6) -> 6:
   i>     hello\n
   o> readline() -> 41:
   o>     68986213bd4485ea51533535e3fc9e78007a711f\n
   o> readline() -> 4:
   o>     440\n
 
 Send an upgrade request to a server that doesn't support that command
 
   $ hg debugwireproto --localssh --peer raw << EOF
   > raw
   >     upgrade 2e82ab3f-9ce3-4b4e-8f8c-6fd1c0e9e23a proto=irrelevant1%2Cirrelevant2\n
   > readline
   > raw
   >     hello\n
   >     between\n
   >     pairs 81\n
   >     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   > readline
   > readline
   > readline
   > readline
   > EOF
   using raw connection to peer
   i> write(77) -> 77:
   i>     upgrade 2e82ab3f-9ce3-4b4e-8f8c-6fd1c0e9e23a proto=irrelevant1%2Cirrelevant2\n
   o> readline() -> 2:
   o>     0\n
   i> write(104) -> 104:
   i>     hello\n
   i>     between\n
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   o> readline() -> 4:
   o>     440\n
   o> readline() -> 440:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
   o> readline() -> 1:
   o>     \n
 
   $ cd ..
 
   $ hg --config experimental.sshpeer.advertise-v2=true --debug debugpeer ssh://user@dummy/server
   running * "*/tests/dummyssh" 'user@dummy' 'hg -R server serve --stdio' (glob) (no-windows !)
   running * "*\tests/dummyssh" "user@dummy" "hg -R server serve --stdio" (glob) (windows !)
   sending upgrade request: * proto=exp-ssh-v2-0003 (glob)
   devel-peer-request: hello+between
   devel-peer-request:   pairs: 81 bytes
   sending hello command
   sending between command
   remote: 0
   remote: 440
   remote: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   remote: 1
   devel-peer-request: protocaps
   devel-peer-request:   caps: * bytes (glob)
   sending protocaps command
   url: ssh://user@dummy/server
   local: no
   pushable: yes
 
 Enable version 2 support on server. We need to do this in hgrc because we can't
 use --config with `hg serve --stdio`.
 
   $ cat >> server/.hg/hgrc << EOF
   > [experimental]
   > sshserver.support-v2 = true
   > EOF
 
 Send an upgrade request to a server that supports upgrade
 
   $ cd server
 
   $ hg debugwireproto --localssh --peer raw << EOF
   > raw
   >     upgrade this-is-some-token proto=exp-ssh-v2-0003\n
   >     hello\n
   >     between\n
   >     pairs 81\n
   >     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   > readline
   > readline
   > readline
   > EOF
   using raw connection to peer
   i> write(153) -> 153:
   i>     upgrade this-is-some-token proto=exp-ssh-v2-0003\n
   i>     hello\n
   i>     between\n
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   o> readline() -> 44:
   o>     upgraded this-is-some-token exp-ssh-v2-0003\n
   o> readline() -> 4:
   o>     439\n
   o> readline() -> 440:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
 
   $ cd ..
 
   $ hg --config experimental.sshpeer.advertise-v2=true --debug debugpeer ssh://user@dummy/server
   running * "*/tests/dummyssh" 'user@dummy' 'hg -R server serve --stdio' (glob) (no-windows !)
   running * "*\tests/dummyssh" "user@dummy" "hg -R server serve --stdio" (glob) (windows !)
   sending upgrade request: * proto=exp-ssh-v2-0003 (glob)
   devel-peer-request: hello+between
   devel-peer-request:   pairs: 81 bytes
   sending hello command
   sending between command
   protocol upgraded to exp-ssh-v2-0003
   remote: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   devel-peer-request: protocaps
   devel-peer-request:   caps: * bytes (glob)
   sending protocaps command
   url: ssh://user@dummy/server
   local: no
   pushable: yes
 
 Verify the peer has capabilities
 
   $ hg --config experimental.sshpeer.advertise-v2=true --debug debugcapabilities ssh://user@dummy/server
   running * "*/tests/dummyssh" 'user@dummy' 'hg -R server serve --stdio' (glob) (no-windows !)
   running * "*\tests/dummyssh" "user@dummy" "hg -R server serve --stdio" (glob) (windows !)
   sending upgrade request: * proto=exp-ssh-v2-0003 (glob)
   devel-peer-request: hello+between
   devel-peer-request:   pairs: 81 bytes
   sending hello command
   sending between command
   protocol upgraded to exp-ssh-v2-0003
   remote: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   devel-peer-request: protocaps
   devel-peer-request:   caps: * bytes (glob)
   sending protocaps command
   Main capabilities:
     batch
     branchmap
     $USUAL_BUNDLE2_CAPS$
     changegroupsubset
     getbundle
     known
     lookup
     protocaps
     pushkey
     streamreqs=generaldelta,revlogv1,sparserevlog
     unbundle=HG10GZ,HG10BZ,HG10UN
     unbundlehash
   Bundle2 capabilities:
     HG20
     bookmarks
     changegroup
       01
       02
     digests
       md5
       sha1
       sha512
     error
       abort
       unsupportedcontent
       pushraced
       pushkey
     hgtagsfnodes
     listkeys
     phases
       heads
     pushkey
     remote-changegroup
       http
       https
     rev-branch-cache
     stream
       v2
 
 Command after upgrade to version 2 is processed
 
   $ cd server
 
   $ hg debugwireproto --localssh --peer raw << EOF
   > raw
   >      upgrade this-is-some-token proto=exp-ssh-v2-0003\n
   >      hello\n
   >      between\n
   >      pairs 81\n
   >      0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   > readline
   > readline
   > readline
   > raw
   >      hello\n
   > readline
   > readline
   > EOF
   using raw connection to peer
   i> write(153) -> 153:
   i>     upgrade this-is-some-token proto=exp-ssh-v2-0003\n
   i>     hello\n
   i>     between\n
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   o> readline() -> 44:
   o>     upgraded this-is-some-token exp-ssh-v2-0003\n
   o> readline() -> 4:
   o>     439\n
   o> readline() -> 440:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   i> write(6) -> 6:
   i>     hello\n
   o> readline() -> 4:
   o>     424\n
   o> readline() -> 424:
   o>     capabilities: branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
 
 Multiple upgrades is not allowed
 
   $ hg debugwireproto --localssh --peer raw << EOF
   > raw
   >     upgrade this-is-some-token proto=exp-ssh-v2-0003\n
   >     hello\n
   >     between\n
   >     pairs 81\n
   >     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   > readline
   > readline
   > readline
   > raw
   >     upgrade another-token proto=irrelevant\n
   >     hello\n
   > readline
   > readavailable
   > EOF
   using raw connection to peer
   i> write(153) -> 153:
   i>     upgrade this-is-some-token proto=exp-ssh-v2-0003\n
   i>     hello\n
   i>     between\n
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   o> readline() -> 44:
   o>     upgraded this-is-some-token exp-ssh-v2-0003\n
   o> readline() -> 4:
   o>     439\n
   o> readline() -> 440:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   i> write(45) -> 45:
   i>     upgrade another-token proto=irrelevant\n
   i>     hello\n
   o> readline() -> 1:
   o>     \n
   e> read(-1) -> 42:
   e>     cannot upgrade protocols multiple times\n
   e>     -\n
 
 Malformed upgrade request line (not exactly 3 space delimited tokens)
 
   $ hg debugwireproto --localssh --peer raw << EOF
   > raw
   >     upgrade\n
   > readline
   > EOF
   using raw connection to peer
   i> write(8) -> 8:
   i>     upgrade\n
   o> readline() -> 2:
   o>     0\n
 
   $ hg debugwireproto --localssh --peer raw << EOF
   > raw
   >     upgrade token\n
   > readline
   > EOF
   using raw connection to peer
   i> write(14) -> 14:
   i>     upgrade token\n
   o> readline() -> 2:
   o>     0\n
 
   $ hg debugwireproto --localssh --peer raw << EOF
   > raw
   >     upgrade token foo=bar extra-token\n
   > readline
   > EOF
   using raw connection to peer
   i> write(34) -> 34:
   i>     upgrade token foo=bar extra-token\n
   o> readline() -> 2:
   o>     0\n
 
 Upgrade request to unsupported protocol is ignored
 
   $ hg debugwireproto --localssh --peer raw << EOF
   > raw
   >     upgrade this-is-some-token proto=unknown1,unknown2\n
   > readline
   > raw
   >     hello\n
   > readline
   > readline
   > raw
   >     between\n
   >     pairs 81\n
   >     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   > readline
   > readline
   > EOF
   using raw connection to peer
   i> write(51) -> 51:
   i>     upgrade this-is-some-token proto=unknown1,unknown2\n
   o> readline() -> 2:
   o>     0\n
   i> write(6) -> 6:
   i>     hello\n
   o> readline() -> 4:
   o>     440\n
   o> readline() -> 440:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   i> write(98) -> 98:
   i>     between\n
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   o> readline() -> 2:
   o>     1\n
   o> readline() -> 1:
   o>     \n
 
 Upgrade request must be followed by hello + between
 
   $ hg debugwireproto --localssh --peer raw << EOF
   > raw
   >     upgrade token proto=exp-ssh-v2-0003\n
   >     invalid\n
   > readline
   > readavailable
   > EOF
   using raw connection to peer
   i> write(44) -> 44:
   i>     upgrade token proto=exp-ssh-v2-0003\n
   i>     invalid\n
   o> readline() -> 1:
   o>     \n
   e> read(-1) -> 46:
   e>     malformed handshake protocol: missing hello\n
   e>     -\n
 
   $ hg debugwireproto --localssh --peer raw << EOF
   > raw
   >     upgrade token proto=exp-ssh-v2-0003\n
   >     hello\n
   >     invalid\n
   > readline
   > readavailable
   > EOF
   using raw connection to peer
   i> write(50) -> 50:
   i>     upgrade token proto=exp-ssh-v2-0003\n
   i>     hello\n
   i>     invalid\n
   o> readline() -> 1:
   o>     \n
   e> read(-1) -> 48:
   e>     malformed handshake protocol: missing between\n
   e>     -\n
 
   $ hg debugwireproto --localssh --peer raw << EOF
   > raw
   >     upgrade token proto=exp-ssh-v2-0003\n
   >     hello\n
   >     between\n
   >     invalid\n
   > readline
   > readavailable
   > EOF
   using raw connection to peer
   i> write(58) -> 58:
   i>     upgrade token proto=exp-ssh-v2-0003\n
   i>     hello\n
   i>     between\n
   i>     invalid\n
   o> readline() -> 1:
   o>     \n
   e> read(-1) -> 49:
   e>     malformed handshake protocol: missing pairs 81\n
   e>     -\n
 
 Legacy commands are not exposed to version 2 of protocol
 
 TODO re-enable these once we're back to actually using v2 commands
 
 $ hg --config experimental.sshpeer.advertise-v2=true debugwireproto --localssh << EOF
 > command branches
 >     nodes 0000000000000000000000000000000000000000
 > EOF
 creating ssh peer from handshake results
 sending branches command
 response:
 
 $ hg --config experimental.sshpeer.advertise-v2=true debugwireproto --localssh << EOF
 > command changegroup
 >     roots 0000000000000000000000000000000000000000
 > EOF
 creating ssh peer from handshake results
 sending changegroup command
 response:
 
 $ hg --config experimental.sshpeer.advertise-v2=true debugwireproto --localssh << EOF
 > command changegroupsubset
 >     bases 0000000000000000000000000000000000000000
 >     heads 0000000000000000000000000000000000000000
 > EOF
 creating ssh peer from handshake results
 sending changegroupsubset command
 response:
 
   $ cd ..
 
 Test listkeys for listing namespaces
 
   $ hg init empty
   $ cd empty
   $ debugwireproto << EOF
   > command listkeys
   >     namespace namespaces
   > EOF
   testing ssh1
   creating ssh peer from handshake results
   i> write(104) -> 104:
   i>     hello\n
   i>     between\n
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
   o>     440\n
   o> readline() -> 440:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
   o> readline() -> 1:
   o>     \n
   sending listkeys command
   i> write(9) -> 9:
   i>     listkeys\n
   i> write(13) -> 13:
   i>     namespace 10\n
   i> write(10) -> 10: namespaces
   i> flush() -> None
   o> bufferedreadline() -> 3:
   o>     30\n
   o> bufferedread(30) -> 30:
   o>     bookmarks\t\n
   o>     namespaces\t\n
   o>     phases\t
   response: {
     b'bookmarks': b'',
     b'namespaces': b'',
     b'phases': b''
   }
   
   testing ssh2
   creating ssh peer from handshake results
   i> write(171) -> 171:
   i>     upgrade * proto=exp-ssh-v2-0003\n (glob)
   i>     hello\n
   i>     between\n
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 62:
   o>     upgraded * exp-ssh-v2-0003\n (glob)
   o> readline() -> 4:
   o>     439\n
   o> read(439) -> 439: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   o> read(1) -> 1:
   o>     \n
   sending listkeys command
   i> write(9) -> 9:
   i>     listkeys\n
   i> write(13) -> 13:
   i>     namespace 10\n
   i> write(10) -> 10: namespaces
   i> flush() -> None
   o> bufferedreadline() -> 3:
   o>     30\n
   o> bufferedread(30) -> 30:
   o>     bookmarks\t\n
   o>     namespaces\t\n
   o>     phases\t
   response: {
     b'bookmarks': b'',
     b'namespaces': b'',
     b'phases': b''
   }
 
   $ cd ..
 
 Test listkeys for bookmarks
 
   $ hg init bookmarkrepo
   $ cd bookmarkrepo
   $ echo 0 > foo
   $ hg add foo
   $ hg -q commit -m initial
   $ echo 1 > foo
   $ hg commit -m second
 
 With no bookmarks set
 
   $ debugwireproto << EOF
   > command listkeys
   >     namespace bookmarks
   > EOF
   testing ssh1
   creating ssh peer from handshake results
   i> write(104) -> 104:
   i>     hello\n
   i>     between\n
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
   o>     440\n
   o> readline() -> 440:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
   o> readline() -> 1:
   o>     \n
   sending listkeys command
   i> write(9) -> 9:
   i>     listkeys\n
   i> write(12) -> 12:
   i>     namespace 9\n
   i> write(9) -> 9: bookmarks
   i> flush() -> None
   o> bufferedreadline() -> 2:
   o>     0\n
   response: {}
   
   testing ssh2
   creating ssh peer from handshake results
   i> write(171) -> 171:
   i>     upgrade * proto=exp-ssh-v2-0003\n (glob)
   i>     hello\n
   i>     between\n
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 62:
   o>     upgraded * exp-ssh-v2-0003\n (glob)
   o> readline() -> 4:
   o>     439\n
   o> read(439) -> 439: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   o> read(1) -> 1:
   o>     \n
   sending listkeys command
   i> write(9) -> 9:
   i>     listkeys\n
   i> write(12) -> 12:
   i>     namespace 9\n
   i> write(9) -> 9: bookmarks
   i> flush() -> None
   o> bufferedreadline() -> 2:
   o>     0\n
   response: {}
 
 With a single bookmark set
 
   $ hg book -r 0 bookA
   $ debugwireproto << EOF
   > command listkeys
   >     namespace bookmarks
   > EOF
   testing ssh1
   creating ssh peer from handshake results
   i> write(104) -> 104:
   i>     hello\n
   i>     between\n
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
   o>     440\n
   o> readline() -> 440:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
   o> readline() -> 1:
   o>     \n
   sending listkeys command
   i> write(9) -> 9:
   i>     listkeys\n
   i> write(12) -> 12:
   i>     namespace 9\n
   i> write(9) -> 9: bookmarks
   i> flush() -> None
   o> bufferedreadline() -> 3:
   o>     46\n
   o> bufferedread(46) -> 46: bookA\t68986213bd4485ea51533535e3fc9e78007a711f
   response: {
     b'bookA': b'68986213bd4485ea51533535e3fc9e78007a711f'
   }
   
   testing ssh2
   creating ssh peer from handshake results
   i> write(171) -> 171:
   i>     upgrade * proto=exp-ssh-v2-0003\n (glob)
   i>     hello\n
   i>     between\n
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 62:
   o>     upgraded * exp-ssh-v2-0003\n (glob)
   o> readline() -> 4:
   o>     439\n
   o> read(439) -> 439: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   o> read(1) -> 1:
   o>     \n
   sending listkeys command
   i> write(9) -> 9:
   i>     listkeys\n
   i> write(12) -> 12:
   i>     namespace 9\n
   i> write(9) -> 9: bookmarks
   i> flush() -> None
   o> bufferedreadline() -> 3:
   o>     46\n
   o> bufferedread(46) -> 46: bookA\t68986213bd4485ea51533535e3fc9e78007a711f
   response: {
     b'bookA': b'68986213bd4485ea51533535e3fc9e78007a711f'
   }
 
 With multiple bookmarks set
 
   $ hg book -r 1 bookB
   $ debugwireproto << EOF
   > command listkeys
   >     namespace bookmarks
   > EOF
   testing ssh1
   creating ssh peer from handshake results
   i> write(104) -> 104:
   i>     hello\n
   i>     between\n
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
   o>     440\n
   o> readline() -> 440:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
   o> readline() -> 1:
   o>     \n
   sending listkeys command
   i> write(9) -> 9:
   i>     listkeys\n
   i> write(12) -> 12:
   i>     namespace 9\n
   i> write(9) -> 9: bookmarks
   i> flush() -> None
   o> bufferedreadline() -> 3:
   o>     93\n
   o> bufferedread(93) -> 93:
   o>     bookA\t68986213bd4485ea51533535e3fc9e78007a711f\n
   o>     bookB\t1880f3755e2e52e3199e0ee5638128b08642f34d
   response: {
     b'bookA': b'68986213bd4485ea51533535e3fc9e78007a711f',
     b'bookB': b'1880f3755e2e52e3199e0ee5638128b08642f34d'
   }
   
   testing ssh2
   creating ssh peer from handshake results
   i> write(171) -> 171:
   i>     upgrade * proto=exp-ssh-v2-0003\n (glob)
   i>     hello\n
   i>     between\n
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 62:
   o>     upgraded * exp-ssh-v2-0003\n (glob)
   o> readline() -> 4:
   o>     439\n
   o> read(439) -> 439: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   o> read(1) -> 1:
   o>     \n
   sending listkeys command
   i> write(9) -> 9:
   i>     listkeys\n
   i> write(12) -> 12:
   i>     namespace 9\n
   i> write(9) -> 9: bookmarks
   i> flush() -> None
   o> bufferedreadline() -> 3:
   o>     93\n
   o> bufferedread(93) -> 93:
   o>     bookA\t68986213bd4485ea51533535e3fc9e78007a711f\n
   o>     bookB\t1880f3755e2e52e3199e0ee5638128b08642f34d
   response: {
     b'bookA': b'68986213bd4485ea51533535e3fc9e78007a711f',
     b'bookB': b'1880f3755e2e52e3199e0ee5638128b08642f34d'
   }
 
 Test pushkey for bookmarks
 
   $ debugwireproto << EOF
   > command pushkey
   >     namespace bookmarks
   >     key remote
   >     old
   >     new 68986213bd4485ea51533535e3fc9e78007a711f
   > EOF
   testing ssh1
   creating ssh peer from handshake results
   i> write(104) -> 104:
   i>     hello\n
   i>     between\n
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
   o>     440\n
   o> readline() -> 440:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
   o> readline() -> 1:
   o>     \n
   sending pushkey command
   i> write(8) -> 8:
   i>     pushkey\n
   i> write(6) -> 6:
   i>     key 6\n
   i> write(6) -> 6: remote
   i> write(12) -> 12:
   i>     namespace 9\n
   i> write(9) -> 9: bookmarks
   i> write(7) -> 7:
   i>     new 40\n
   i> write(40) -> 40: 68986213bd4485ea51533535e3fc9e78007a711f
   i> write(6) -> 6:
   i>     old 0\n
   i> flush() -> None
   o> bufferedreadline() -> 2:
   o>     2\n
   o> bufferedread(2) -> 2:
   o>     1\n
   response: True
   
   testing ssh2
   creating ssh peer from handshake results
   i> write(171) -> 171:
   i>     upgrade * proto=exp-ssh-v2-0003\n (glob)
   i>     hello\n
   i>     between\n
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 62:
   o>     upgraded * exp-ssh-v2-0003\n (glob)
   o> readline() -> 4:
   o>     439\n
   o> read(439) -> 439: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   o> read(1) -> 1:
   o>     \n
   sending pushkey command
   i> write(8) -> 8:
   i>     pushkey\n
   i> write(6) -> 6:
   i>     key 6\n
   i> write(6) -> 6: remote
   i> write(12) -> 12:
   i>     namespace 9\n
   i> write(9) -> 9: bookmarks
   i> write(7) -> 7:
   i>     new 40\n
   i> write(40) -> 40: 68986213bd4485ea51533535e3fc9e78007a711f
   i> write(6) -> 6:
   i>     old 0\n
   i> flush() -> None
   o> bufferedreadline() -> 2:
   o>     2\n
   o> bufferedread(2) -> 2:
   o>     1\n
   response: True
 
   $ hg bookmarks
      bookA                     0:68986213bd44
      bookB                     1:1880f3755e2e
      remote                    0:68986213bd44
 
   $ cd ..
 
 Test listkeys for phases
 
   $ hg init phasesrepo
   $ cd phasesrepo
 
 Phases on empty repo
 
   $ debugwireproto << EOF
   > command listkeys
   >     namespace phases
   > EOF
   testing ssh1
   creating ssh peer from handshake results
   i> write(104) -> 104:
   i>     hello\n
   i>     between\n
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
   o>     440\n
   o> readline() -> 440:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
   o> readline() -> 1:
   o>     \n
   sending listkeys command
   i> write(9) -> 9:
   i>     listkeys\n
   i> write(12) -> 12:
   i>     namespace 6\n
   i> write(6) -> 6: phases
   i> flush() -> None
   o> bufferedreadline() -> 3:
   o>     15\n
   o> bufferedread(15) -> 15: publishing\tTrue
   response: {
     b'publishing': b'True'
   }
   
   testing ssh2
   creating ssh peer from handshake results
   i> write(171) -> 171:
   i>     upgrade * proto=exp-ssh-v2-0003\n (glob)
   i>     hello\n
   i>     between\n
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 62:
   o>     upgraded * exp-ssh-v2-0003\n (glob)
   o> readline() -> 4:
   o>     439\n
   o> read(439) -> 439: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   o> read(1) -> 1:
   o>     \n
   sending listkeys command
   i> write(9) -> 9:
   i>     listkeys\n
   i> write(12) -> 12:
   i>     namespace 6\n
   i> write(6) -> 6: phases
   i> flush() -> None
   o> bufferedreadline() -> 3:
   o>     15\n
   o> bufferedread(15) -> 15: publishing\tTrue
   response: {
     b'publishing': b'True'
   }
 
 Create some commits
 
   $ echo 0 > foo
   $ hg add foo
   $ hg -q commit -m initial
   $ hg phase --public
   $ echo 1 > foo
   $ hg commit -m 'head 1 commit 1'
   $ echo 2 > foo
   $ hg commit -m 'head 1 commit 2'
   $ hg -q up 0
   $ echo 1a > foo
   $ hg commit -m 'head 2 commit 1'
   created new head
   $ echo 2a > foo
   $ hg commit -m 'head 2 commit 2'
 
 Two draft heads
 
   $ debugwireproto << EOF
   > command listkeys
   >     namespace phases
   > EOF
   testing ssh1
   creating ssh peer from handshake results
   i> write(104) -> 104:
   i>     hello\n
   i>     between\n
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
   o>     440\n
   o> readline() -> 440:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
   o> readline() -> 1:
   o>     \n
   sending listkeys command
   i> write(9) -> 9:
   i>     listkeys\n
   i> write(12) -> 12:
   i>     namespace 6\n
   i> write(6) -> 6: phases
   i> flush() -> None
   o> bufferedreadline() -> 4:
   o>     101\n
   o> bufferedread(101) -> 101:
   o>     20b8a89289d80036e6c4e87c2083e3bea1586637\t1\n
   o>     c4750011d906c18ea2f0527419cbc1a544435150\t1\n
   o>     publishing\tTrue
   response: {
     b'20b8a89289d80036e6c4e87c2083e3bea1586637': b'1',
     b'c4750011d906c18ea2f0527419cbc1a544435150': b'1',
     b'publishing': b'True'
   }
   
   testing ssh2
   creating ssh peer from handshake results
   i> write(171) -> 171:
   i>     upgrade * proto=exp-ssh-v2-0003\n (glob)
   i>     hello\n
   i>     between\n
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 62:
   o>     upgraded * exp-ssh-v2-0003\n (glob)
   o> readline() -> 4:
   o>     439\n
   o> read(439) -> 439: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   o> read(1) -> 1:
   o>     \n
   sending listkeys command
   i> write(9) -> 9:
   i>     listkeys\n
   i> write(12) -> 12:
   i>     namespace 6\n
   i> write(6) -> 6: phases
   i> flush() -> None
   o> bufferedreadline() -> 4:
   o>     101\n
   o> bufferedread(101) -> 101:
   o>     20b8a89289d80036e6c4e87c2083e3bea1586637\t1\n
   o>     c4750011d906c18ea2f0527419cbc1a544435150\t1\n
   o>     publishing\tTrue
   response: {
     b'20b8a89289d80036e6c4e87c2083e3bea1586637': b'1',
     b'c4750011d906c18ea2f0527419cbc1a544435150': b'1',
     b'publishing': b'True'
   }
 
 Single draft head
 
   $ hg phase --public -r 2
   $ debugwireproto << EOF
   > command listkeys
   >     namespace phases
   > EOF
   testing ssh1
   creating ssh peer from handshake results
   i> write(104) -> 104:
   i>     hello\n
   i>     between\n
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
   o>     440\n
   o> readline() -> 440:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
   o> readline() -> 1:
   o>     \n
   sending listkeys command
   i> write(9) -> 9:
   i>     listkeys\n
   i> write(12) -> 12:
   i>     namespace 6\n
   i> write(6) -> 6: phases
   i> flush() -> None
   o> bufferedreadline() -> 3:
   o>     58\n
   o> bufferedread(58) -> 58:
   o>     c4750011d906c18ea2f0527419cbc1a544435150\t1\n
   o>     publishing\tTrue
   response: {
     b'c4750011d906c18ea2f0527419cbc1a544435150': b'1',
     b'publishing': b'True'
   }
   
   testing ssh2
   creating ssh peer from handshake results
   i> write(171) -> 171:
   i>     upgrade * proto=exp-ssh-v2-0003\n (glob)
   i>     hello\n
   i>     between\n
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 62:
   o>     upgraded * exp-ssh-v2-0003\n (glob)
   o> readline() -> 4:
   o>     439\n
   o> read(439) -> 439: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   o> read(1) -> 1:
   o>     \n
   sending listkeys command
   i> write(9) -> 9:
   i>     listkeys\n
   i> write(12) -> 12:
   i>     namespace 6\n
   i> write(6) -> 6: phases
   i> flush() -> None
   o> bufferedreadline() -> 3:
   o>     58\n
   o> bufferedread(58) -> 58:
   o>     c4750011d906c18ea2f0527419cbc1a544435150\t1\n
   o>     publishing\tTrue
   response: {
     b'c4750011d906c18ea2f0527419cbc1a544435150': b'1',
     b'publishing': b'True'
   }
 
 All public heads
 
   $ hg phase --public -r 4
   $ debugwireproto << EOF
   > command listkeys
   >     namespace phases
   > EOF
   testing ssh1
   creating ssh peer from handshake results
   i> write(104) -> 104:
   i>     hello\n
   i>     between\n
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
   o>     440\n
   o> readline() -> 440:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
   o> readline() -> 1:
   o>     \n
   sending listkeys command
   i> write(9) -> 9:
   i>     listkeys\n
   i> write(12) -> 12:
   i>     namespace 6\n
   i> write(6) -> 6: phases
   i> flush() -> None
   o> bufferedreadline() -> 3:
   o>     15\n
   o> bufferedread(15) -> 15: publishing\tTrue
   response: {
     b'publishing': b'True'
   }
   
   testing ssh2
   creating ssh peer from handshake results
   i> write(171) -> 171:
   i>     upgrade * proto=exp-ssh-v2-0003\n (glob)
   i>     hello\n
   i>     between\n
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 62:
   o>     upgraded * exp-ssh-v2-0003\n (glob)
   o> readline() -> 4:
   o>     439\n
   o> read(439) -> 439: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   o> read(1) -> 1:
   o>     \n
   sending listkeys command
   i> write(9) -> 9:
   i>     listkeys\n
   i> write(12) -> 12:
   i>     namespace 6\n
   i> write(6) -> 6: phases
   i> flush() -> None
   o> bufferedreadline() -> 3:
   o>     15\n
   o> bufferedread(15) -> 15: publishing\tTrue
   response: {
     b'publishing': b'True'
   }
 
 Setting public phase via pushkey
 
   $ hg phase --draft --force -r .
 
   $ debugwireproto << EOF
   > command pushkey
   >     namespace phases
   >     key 7127240a084fd9dc86fe8d1f98e26229161ec82b
   >     old 1
   >     new 0
   > EOF
   testing ssh1
   creating ssh peer from handshake results
   i> write(104) -> 104:
   i>     hello\n
   i>     between\n
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
   o>     440\n
   o> readline() -> 440:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
   o> readline() -> 1:
   o>     \n
   sending pushkey command
   i> write(8) -> 8:
   i>     pushkey\n
   i> write(7) -> 7:
   i>     key 40\n
   i> write(40) -> 40: 7127240a084fd9dc86fe8d1f98e26229161ec82b
   i> write(12) -> 12:
   i>     namespace 6\n
   i> write(6) -> 6: phases
   i> write(6) -> 6:
   i>     new 1\n
   i> write(1) -> 1: 0
   i> write(6) -> 6:
   i>     old 1\n
   i> write(1) -> 1: 1
   i> flush() -> None
   o> bufferedreadline() -> 2:
   o>     2\n
   o> bufferedread(2) -> 2:
   o>     1\n
   response: True
   
   testing ssh2
   creating ssh peer from handshake results
   i> write(171) -> 171:
   i>     upgrade * proto=exp-ssh-v2-0003\n (glob)
   i>     hello\n
   i>     between\n
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 62:
   o>     upgraded * exp-ssh-v2-0003\n (glob)
   o> readline() -> 4:
   o>     439\n
   o> read(439) -> 439: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   o> read(1) -> 1:
   o>     \n
   sending pushkey command
   i> write(8) -> 8:
   i>     pushkey\n
   i> write(7) -> 7:
   i>     key 40\n
   i> write(40) -> 40: 7127240a084fd9dc86fe8d1f98e26229161ec82b
   i> write(12) -> 12:
   i>     namespace 6\n
   i> write(6) -> 6: phases
   i> write(6) -> 6:
   i>     new 1\n
   i> write(1) -> 1: 0
   i> write(6) -> 6:
   i>     old 1\n
   i> write(1) -> 1: 1
   i> flush() -> None
   o> bufferedreadline() -> 2:
   o>     2\n
   o> bufferedread(2) -> 2:
   o>     1\n
   response: True
 
   $ hg phase .
   4: public
 
   $ cd ..
 
 Test batching of requests
 
   $ hg init batching
   $ cd batching
   $ echo 0 > foo
   $ hg add foo
   $ hg -q commit -m initial
   $ hg phase --public
   $ echo 1 > foo
   $ hg commit -m 'commit 1'
   $ hg -q up 0
   $ echo 2 > foo
   $ hg commit -m 'commit 2'
   created new head
   $ hg book -r 1 bookA
   $ hg book -r 2 bookB
 
   $ debugwireproto << EOF
   > batchbegin
   > command heads
   > command listkeys
   >     namespace bookmarks
   > command listkeys
   >     namespace phases
   > batchsubmit
   > EOF
   testing ssh1
   creating ssh peer from handshake results
   i> write(104) -> 104:
   i>     hello\n
   i>     between\n
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
   o>     440\n
   o> readline() -> 440:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
   o> readline() -> 1:
   o>     \n
   sending batch with 3 sub-commands
   i> write(6) -> 6:
   i>     batch\n
   i> write(4) -> 4:
   i>     * 0\n
   i> write(8) -> 8:
   i>     cmds 61\n
   i> write(61) -> 61: heads ;listkeys namespace=bookmarks;listkeys namespace=phases
   i> flush() -> None
   o> bufferedreadline() -> 4:
   o>     278\n
   o> bufferedread(278) -> 278:
   o>     bfebe6bd38eebc6f8202e419c1171268987ea6a6 4ee3fcef1c800fa2bf23e20af7c83ff111d9c7ab\n
   o>     ;bookA\t4ee3fcef1c800fa2bf23e20af7c83ff111d9c7ab\n
   o>     bookB\tbfebe6bd38eebc6f8202e419c1171268987ea6a6;4ee3fcef1c800fa2bf23e20af7c83ff111d9c7ab\t1\n
   o>     bfebe6bd38eebc6f8202e419c1171268987ea6a6\t1\n
   o>     publishing\tTrue
   response #0: bfebe6bd38eebc6f8202e419c1171268987ea6a6 4ee3fcef1c800fa2bf23e20af7c83ff111d9c7ab\n
   response #1: bookA\t4ee3fcef1c800fa2bf23e20af7c83ff111d9c7ab\nbookB\tbfebe6bd38eebc6f8202e419c1171268987ea6a6
   response #2: 4ee3fcef1c800fa2bf23e20af7c83ff111d9c7ab\t1\nbfebe6bd38eebc6f8202e419c1171268987ea6a6\t1\npublishing\tTrue
   
   testing ssh2
   creating ssh peer from handshake results
   i> write(171) -> 171:
   i>     upgrade * proto=exp-ssh-v2-0003\n (glob)
   i>     hello\n
   i>     between\n
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 62:
   o>     upgraded * exp-ssh-v2-0003\n (glob)
   o> readline() -> 4:
   o>     439\n
   o> read(439) -> 439: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   o> read(1) -> 1:
   o>     \n
   sending batch with 3 sub-commands
   i> write(6) -> 6:
   i>     batch\n
   i> write(4) -> 4:
   i>     * 0\n
   i> write(8) -> 8:
   i>     cmds 61\n
   i> write(61) -> 61: heads ;listkeys namespace=bookmarks;listkeys namespace=phases
   i> flush() -> None
   o> bufferedreadline() -> 4:
   o>     278\n
   o> bufferedread(278) -> 278:
   o>     bfebe6bd38eebc6f8202e419c1171268987ea6a6 4ee3fcef1c800fa2bf23e20af7c83ff111d9c7ab\n
   o>     ;bookA\t4ee3fcef1c800fa2bf23e20af7c83ff111d9c7ab\n
   o>     bookB\tbfebe6bd38eebc6f8202e419c1171268987ea6a6;4ee3fcef1c800fa2bf23e20af7c83ff111d9c7ab\t1\n
   o>     bfebe6bd38eebc6f8202e419c1171268987ea6a6\t1\n
   o>     publishing\tTrue
   response #0: bfebe6bd38eebc6f8202e419c1171268987ea6a6 4ee3fcef1c800fa2bf23e20af7c83ff111d9c7ab\n
   response #1: bookA\t4ee3fcef1c800fa2bf23e20af7c83ff111d9c7ab\nbookB\tbfebe6bd38eebc6f8202e419c1171268987ea6a6
   response #2: 4ee3fcef1c800fa2bf23e20af7c83ff111d9c7ab\t1\nbfebe6bd38eebc6f8202e419c1171268987ea6a6\t1\npublishing\tTrue