tests/test-wireproto-command-capabilities.t

wireprotov2: implement command for retrieving raw store files

Implementing shallow clone of the changelog is hard. We want the 4.8
release to have a fast implementation of partial clone in wireprotov2. In
order to achieve fast, we can't use deltas for transferring changelog and
manifestlog data.

Per discussions at the 4.8 sprint, this commit implements a somwwhat hacky
and likely-to-be-changed-drastically-or-dropped command in wireprotov2 that
facilitates access to raw store files, namely the changelog and manifestlog.
Using this command, clients can perform a "stream clone" of sorts for just
the changelog and manifestlog. This will allow clients to fetch the changelog
and manifest revlogs, stream them to disk (which should be fast), then follow
up filesdata requests for files revision data for a particular changeset.

Differential Revision: https://phab.mercurial-scm.org/D5134

#require no-chg

  $ . $TESTDIR/wireprotohelpers.sh

  $ hg init server

zstd isn't present in plain builds. Make tests easier by removing
zstd from the equation.

  $ cat >> server/.hg/hgrc << EOF
  > [server]
  > compressionengines = zlib
  > EOF

  $ hg -R server serve -p $HGPORT -d --pid-file hg.pid -E error.log
  $ cat hg.pid > $DAEMON_PIDS

A normal capabilities request is serviced for version 1

  $ sendhttpraw << EOF
  > httprequest GET ?cmd=capabilities
  >     user-agent: test
  > EOF
  using raw connection to peer
  s>     GET /?cmd=capabilities HTTP/1.1\r\n
  s>     Accept-Encoding: identity\r\n
  s>     user-agent: test\r\n
  s>     host: $LOCALIP:$HGPORT\r\n (glob)
  s>     \r\n
  s> makefile('rb', None)
  s>     HTTP/1.1 200 Script output follows\r\n
  s>     Server: testing stub value\r\n
  s>     Date: $HTTP_DATE$\r\n
  s>     Content-Type: application/mercurial-0.1\r\n
  s>     Content-Length: *\r\n (glob)
  s>     \r\n
  s>     batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash

A proper request without the API server enabled returns the legacy response

  $ sendhttpraw << EOF
  > httprequest GET ?cmd=capabilities
  >    user-agent: test
  >    x-hgupgrade-1: foo
  >    x-hgproto-1: cbor
  > EOF
  using raw connection to peer
  s>     GET /?cmd=capabilities HTTP/1.1\r\n
  s>     Accept-Encoding: identity\r\n
  s>     user-agent: test\r\n
  s>     x-hgproto-1: cbor\r\n
  s>     x-hgupgrade-1: foo\r\n
  s>     host: $LOCALIP:$HGPORT\r\n (glob)
  s>     \r\n
  s> makefile('rb', None)
  s>     HTTP/1.1 200 Script output follows\r\n
  s>     Server: testing stub value\r\n
  s>     Date: $HTTP_DATE$\r\n
  s>     Content-Type: application/mercurial-0.1\r\n
  s>     Content-Length: *\r\n (glob)
  s>     \r\n
  s>     batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash

Restart with just API server enabled. This enables serving the new format.

  $ killdaemons.py
  $ cat error.log

  $ cat >> server/.hg/hgrc << EOF
  > [experimental]
  > web.apiserver = true
  > EOF

  $ hg -R server serve -p $HGPORT -d --pid-file hg.pid -E error.log
  $ cat hg.pid > $DAEMON_PIDS

X-HgUpgrade-<N> without CBOR advertisement uses legacy response

  $ sendhttpraw << EOF
  > httprequest GET ?cmd=capabilities
  >    user-agent: test
  >    x-hgupgrade-1: foo bar
  > EOF
  using raw connection to peer
  s>     GET /?cmd=capabilities HTTP/1.1\r\n
  s>     Accept-Encoding: identity\r\n
  s>     user-agent: test\r\n
  s>     x-hgupgrade-1: foo bar\r\n
  s>     host: $LOCALIP:$HGPORT\r\n (glob)
  s>     \r\n
  s> makefile('rb', None)
  s>     HTTP/1.1 200 Script output follows\r\n
  s>     Server: testing stub value\r\n
  s>     Date: $HTTP_DATE$\r\n
  s>     Content-Type: application/mercurial-0.1\r\n
  s>     Content-Length: *\r\n (glob)
  s>     \r\n
  s>     batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash

X-HgUpgrade-<N> without known serialization in X-HgProto-<N> uses legacy response

  $ sendhttpraw << EOF
  > httprequest GET ?cmd=capabilities
  >    user-agent: test
  >    x-hgupgrade-1: foo bar
  >    x-hgproto-1: some value
  > EOF
  using raw connection to peer
  s>     GET /?cmd=capabilities HTTP/1.1\r\n
  s>     Accept-Encoding: identity\r\n
  s>     user-agent: test\r\n
  s>     x-hgproto-1: some value\r\n
  s>     x-hgupgrade-1: foo bar\r\n
  s>     host: $LOCALIP:$HGPORT\r\n (glob)
  s>     \r\n
  s> makefile('rb', None)
  s>     HTTP/1.1 200 Script output follows\r\n
  s>     Server: testing stub value\r\n
  s>     Date: $HTTP_DATE$\r\n
  s>     Content-Type: application/mercurial-0.1\r\n
  s>     Content-Length: *\r\n (glob)
  s>     \r\n
  s>     batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash

X-HgUpgrade-<N> + X-HgProto-<N> headers trigger new response format

  $ sendhttpraw << EOF
  > httprequest GET ?cmd=capabilities
  >    user-agent: test
  >    x-hgupgrade-1: foo bar
  >    x-hgproto-1: cbor
  > EOF
  using raw connection to peer
  s>     GET /?cmd=capabilities HTTP/1.1\r\n
  s>     Accept-Encoding: identity\r\n
  s>     user-agent: test\r\n
  s>     x-hgproto-1: cbor\r\n
  s>     x-hgupgrade-1: foo bar\r\n
  s>     host: $LOCALIP:$HGPORT\r\n (glob)
  s>     \r\n
  s> makefile('rb', None)
  s>     HTTP/1.1 200 OK\r\n
  s>     Server: testing stub value\r\n
  s>     Date: $HTTP_DATE$\r\n
  s>     Content-Type: application/mercurial-cbor\r\n
  s>     Content-Length: *\r\n (glob)
  s>     \r\n
  s>     \xa3GapibaseDapi/Dapis\xa0Nv1capabilitiesY\x01\xd3batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
  cbor> [
    {
      b'apibase': b'api/',
      b'apis': {},
      b'v1capabilities': b'batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash'
    }
  ]

Restart server to enable HTTPv2

  $ killdaemons.py
  $ enablehttpv2 server
  $ hg -R server serve -p $HGPORT -d --pid-file hg.pid -E error.log
  $ cat hg.pid > $DAEMON_PIDS

Only requested API services are returned

  $ sendhttpraw << EOF
  > httprequest GET ?cmd=capabilities
  >    user-agent: test
  >    x-hgupgrade-1: foo bar
  >    x-hgproto-1: cbor
  > EOF
  using raw connection to peer
  s>     GET /?cmd=capabilities HTTP/1.1\r\n
  s>     Accept-Encoding: identity\r\n
  s>     user-agent: test\r\n
  s>     x-hgproto-1: cbor\r\n
  s>     x-hgupgrade-1: foo bar\r\n
  s>     host: $LOCALIP:$HGPORT\r\n (glob)
  s>     \r\n
  s> makefile('rb', None)
  s>     HTTP/1.1 200 OK\r\n
  s>     Server: testing stub value\r\n
  s>     Date: $HTTP_DATE$\r\n
  s>     Content-Type: application/mercurial-cbor\r\n
  s>     Content-Length: *\r\n (glob)
  s>     \r\n
  s>     \xa3GapibaseDapi/Dapis\xa0Nv1capabilitiesY\x01\xd3batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
  cbor> [
    {
      b'apibase': b'api/',
      b'apis': {},
      b'v1capabilities': b'batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash'
    }
  ]

Request for HTTPv2 service returns information about it

  $ sendhttpraw << EOF
  > httprequest GET ?cmd=capabilities
  >    user-agent: test
  >    x-hgupgrade-1: exp-http-v2-0003 foo bar
  >    x-hgproto-1: cbor
  > EOF
  using raw connection to peer
  s>     GET /?cmd=capabilities HTTP/1.1\r\n
  s>     Accept-Encoding: identity\r\n
  s>     user-agent: test\r\n
  s>     x-hgproto-1: cbor\r\n
  s>     x-hgupgrade-1: exp-http-v2-0003 foo bar\r\n
  s>     host: $LOCALIP:$HGPORT\r\n (glob)
  s>     \r\n
  s> makefile('rb', None)
  s>     HTTP/1.1 200 OK\r\n
  s>     Server: testing stub value\r\n
  s>     Date: $HTTP_DATE$\r\n
  s>     Content-Type: application/mercurial-cbor\r\n
  s>     Content-Length: *\r\n (glob)
  s>     \r\n
  s>     \xa3GapibaseDapi/Dapis\xa1Pexp-http-v2-0003\xa4Hcommands\xacIbranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa2Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84IbookmarksGparentsEphaseHrevisionIrevisions\xa2Hrequired\xf5DtypeDlistKpermissions\x81DpullHfiledata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDpath\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullIfilesdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x83NfirstchangesetGparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolJpathfilter\xa3Gdefault\xf6Hrequired\xf4DtypeDdictIrevisions\xa2Hrequired\xf5DtypeDlistKpermissions\x81DpullTrecommendedbatchsize\x19\xc3PEheads\xa2Dargs\xa1Jpubliconly\xa3Gdefault\xf4Hrequired\xf4DtypeDboolKpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\xa3Gdefault\x80Hrequired\xf4DtypeDlistKpermissions\x81DpullHlistkeys\xa2Dargs\xa1Inamespace\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullFlookup\xa2Dargs\xa1Ckey\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullLmanifestdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDtree\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullTrecommendedbatchsize\x1a\x00\x01\x86\xa0Gpushkey\xa2Dargs\xa4Ckey\xa2Hrequired\xf5DtypeEbytesInamespace\xa2Hrequired\xf5DtypeEbytesCnew\xa2Hrequired\xf5DtypeEbytesCold\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpushPrawstorefiledata\xa2Dargs\xa2Efiles\xa2Hrequired\xf5DtypeDlistJpathfilter\xa3Gdefault\xf6Hrequired\xf4DtypeDlistKpermissions\x81DpullQframingmediatypes\x81X&application/mercurial-exp-framing-0006Rpathfilterprefixes\xd9\x01\x02\x82Epath:Lrootfilesin:Nrawrepoformats\x82LgeneraldeltaHrevlogv1Nv1capabilitiesY\x01\xd3batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
  cbor> [
    {
      b'apibase': b'api/',
      b'apis': {
        b'exp-http-v2-0003': {
          b'commands': {
            b'branchmap': {
              b'args': {},
              b'permissions': [
                b'pull'
              ]
            },
            b'capabilities': {
              b'args': {},
              b'permissions': [
                b'pull'
              ]
            },
            b'changesetdata': {
              b'args': {
                b'fields': {
                  b'default': set([]),
                  b'required': False,
                  b'type': b'set',
                  b'validvalues': set([
                    b'bookmarks',
                    b'parents',
                    b'phase',
                    b'revision'
                  ])
                },
                b'revisions': {
                  b'required': True,
                  b'type': b'list'
                }
              },
              b'permissions': [
                b'pull'
              ]
            },
            b'filedata': {
              b'args': {
                b'fields': {
                  b'default': set([]),
                  b'required': False,
                  b'type': b'set',
                  b'validvalues': set([
                    b'parents',
                    b'revision'
                  ])
                },
                b'haveparents': {
                  b'default': False,
                  b'required': False,
                  b'type': b'bool'
                },
                b'nodes': {
                  b'required': True,
                  b'type': b'list'
                },
                b'path': {
                  b'required': True,
                  b'type': b'bytes'
                }
              },
              b'permissions': [
                b'pull'
              ]
            },
            b'filesdata': {
              b'args': {
                b'fields': {
                  b'default': set([]),
                  b'required': False,
                  b'type': b'set',
                  b'validvalues': set([
                    b'firstchangeset',
                    b'parents',
                    b'revision'
                  ])
                },
                b'haveparents': {
                  b'default': False,
                  b'required': False,
                  b'type': b'bool'
                },
                b'pathfilter': {
                  b'default': None,
                  b'required': False,
                  b'type': b'dict'
                },
                b'revisions': {
                  b'required': True,
                  b'type': b'list'
                }
              },
              b'permissions': [
                b'pull'
              ],
              b'recommendedbatchsize': 50000
            },
            b'heads': {
              b'args': {
                b'publiconly': {
                  b'default': False,
                  b'required': False,
                  b'type': b'bool'
                }
              },
              b'permissions': [
                b'pull'
              ]
            },
            b'known': {
              b'args': {
                b'nodes': {
                  b'default': [],
                  b'required': False,
                  b'type': b'list'
                }
              },
              b'permissions': [
                b'pull'
              ]
            },
            b'listkeys': {
              b'args': {
                b'namespace': {
                  b'required': True,
                  b'type': b'bytes'
                }
              },
              b'permissions': [
                b'pull'
              ]
            },
            b'lookup': {
              b'args': {
                b'key': {
                  b'required': True,
                  b'type': b'bytes'
                }
              },
              b'permissions': [
                b'pull'
              ]
            },
            b'manifestdata': {
              b'args': {
                b'fields': {
                  b'default': set([]),
                  b'required': False,
                  b'type': b'set',
                  b'validvalues': set([
                    b'parents',
                    b'revision'
                  ])
                },
                b'haveparents': {
                  b'default': False,
                  b'required': False,
                  b'type': b'bool'
                },
                b'nodes': {
                  b'required': True,
                  b'type': b'list'
                },
                b'tree': {
                  b'required': True,
                  b'type': b'bytes'
                }
              },
              b'permissions': [
                b'pull'
              ],
              b'recommendedbatchsize': 100000
            },
            b'pushkey': {
              b'args': {
                b'key': {
                  b'required': True,
                  b'type': b'bytes'
                },
                b'namespace': {
                  b'required': True,
                  b'type': b'bytes'
                },
                b'new': {
                  b'required': True,
                  b'type': b'bytes'
                },
                b'old': {
                  b'required': True,
                  b'type': b'bytes'
                }
              },
              b'permissions': [
                b'push'
              ]
            },
            b'rawstorefiledata': {
              b'args': {
                b'files': {
                  b'required': True,
                  b'type': b'list'
                },
                b'pathfilter': {
                  b'default': None,
                  b'required': False,
                  b'type': b'list'
                }
              },
              b'permissions': [
                b'pull'
              ]
            }
          },
          b'framingmediatypes': [
            b'application/mercurial-exp-framing-0006'
          ],
          b'pathfilterprefixes': set([
            b'path:',
            b'rootfilesin:'
          ]),
          b'rawrepoformats': [
            b'generaldelta',
            b'revlogv1'
          ]
        }
      },
      b'v1capabilities': b'batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash'
    }
  ]

capabilities command returns expected info

  $ sendhttpv2peerhandshake << EOF
  > command capabilities
  > EOF
  creating http peer for wire protocol version 2
  s>     GET /?cmd=capabilities HTTP/1.1\r\n
  s>     Accept-Encoding: identity\r\n
  s>     vary: X-HgProto-1,X-HgUpgrade-1\r\n
  s>     x-hgproto-1: cbor\r\n
  s>     x-hgupgrade-1: exp-http-v2-0003\r\n
  s>     accept: application/mercurial-0.1\r\n
  s>     host: $LOCALIP:$HGPORT\r\n (glob)
  s>     user-agent: Mercurial debugwireproto\r\n
  s>     \r\n
  s> makefile('rb', None)
  s>     HTTP/1.1 200 OK\r\n
  s>     Server: testing stub value\r\n
  s>     Date: $HTTP_DATE$\r\n
  s>     Content-Type: application/mercurial-cbor\r\n
  s>     Content-Length: *\r\n (glob)
  s>     \r\n
  s>     \xa3GapibaseDapi/Dapis\xa1Pexp-http-v2-0003\xa4Hcommands\xacIbranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa2Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84IbookmarksGparentsEphaseHrevisionIrevisions\xa2Hrequired\xf5DtypeDlistKpermissions\x81DpullHfiledata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDpath\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullIfilesdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x83NfirstchangesetGparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolJpathfilter\xa3Gdefault\xf6Hrequired\xf4DtypeDdictIrevisions\xa2Hrequired\xf5DtypeDlistKpermissions\x81DpullTrecommendedbatchsize\x19\xc3PEheads\xa2Dargs\xa1Jpubliconly\xa3Gdefault\xf4Hrequired\xf4DtypeDboolKpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\xa3Gdefault\x80Hrequired\xf4DtypeDlistKpermissions\x81DpullHlistkeys\xa2Dargs\xa1Inamespace\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullFlookup\xa2Dargs\xa1Ckey\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullLmanifestdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDtree\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullTrecommendedbatchsize\x1a\x00\x01\x86\xa0Gpushkey\xa2Dargs\xa4Ckey\xa2Hrequired\xf5DtypeEbytesInamespace\xa2Hrequired\xf5DtypeEbytesCnew\xa2Hrequired\xf5DtypeEbytesCold\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpushPrawstorefiledata\xa2Dargs\xa2Efiles\xa2Hrequired\xf5DtypeDlistJpathfilter\xa3Gdefault\xf6Hrequired\xf4DtypeDlistKpermissions\x81DpullQframingmediatypes\x81X&application/mercurial-exp-framing-0006Rpathfilterprefixes\xd9\x01\x02\x82Epath:Lrootfilesin:Nrawrepoformats\x82LgeneraldeltaHrevlogv1Nv1capabilitiesY\x01\xd3batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
  sending capabilities command
  s>     POST /api/exp-http-v2-0003/ro/capabilities HTTP/1.1\r\n
  s>     Accept-Encoding: identity\r\n
  s>     accept: application/mercurial-exp-framing-0006\r\n
  s>     content-type: application/mercurial-exp-framing-0006\r\n
  s>     content-length: 63\r\n
  s>     host: $LOCALIP:$HGPORT\r\n (glob)
  s>     user-agent: Mercurial debugwireproto\r\n
  s>     \r\n
  s>     \x1c\x00\x00\x01\x00\x01\x01\x82\xa1Pcontentencodings\x81Hidentity\x13\x00\x00\x01\x00\x01\x00\x11\xa1DnameLcapabilities
  s> makefile('rb', None)
  s>     HTTP/1.1 200 OK\r\n
  s>     Server: testing stub value\r\n
  s>     Date: $HTTP_DATE$\r\n
  s>     Content-Type: application/mercurial-exp-framing-0006\r\n
  s>     Transfer-Encoding: chunked\r\n
  s>     \r\n
  s>     11\r\n
  s>     \t\x00\x00\x01\x00\x02\x01\x92
  s>     Hidentity
  s>     \r\n
  received frame(size=9; request=1; stream=2; streamflags=stream-begin; type=stream-settings; flags=eos)
  s>     13\r\n
  s>     \x0b\x00\x00\x01\x00\x02\x041
  s>     \xa1FstatusBok
  s>     \r\n
  received frame(size=11; request=1; stream=2; streamflags=encoded; type=command-response; flags=continuation)
  s>     63f\r\n
  s>     7\x06\x00\x01\x00\x02\x041
  s>     \xa4Hcommands\xacIbranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa2Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84IbookmarksGparentsEphaseHrevisionIrevisions\xa2Hrequired\xf5DtypeDlistKpermissions\x81DpullHfiledata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDpath\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullIfilesdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x83NfirstchangesetGparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolJpathfilter\xa3Gdefault\xf6Hrequired\xf4DtypeDdictIrevisions\xa2Hrequired\xf5DtypeDlistKpermissions\x81DpullTrecommendedbatchsize\x19\xc3PEheads\xa2Dargs\xa1Jpubliconly\xa3Gdefault\xf4Hrequired\xf4DtypeDboolKpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\xa3Gdefault\x80Hrequired\xf4DtypeDlistKpermissions\x81DpullHlistkeys\xa2Dargs\xa1Inamespace\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullFlookup\xa2Dargs\xa1Ckey\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullLmanifestdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDtree\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullTrecommendedbatchsize\x1a\x00\x01\x86\xa0Gpushkey\xa2Dargs\xa4Ckey\xa2Hrequired\xf5DtypeEbytesInamespace\xa2Hrequired\xf5DtypeEbytesCnew\xa2Hrequired\xf5DtypeEbytesCold\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpushPrawstorefiledata\xa2Dargs\xa2Efiles\xa2Hrequired\xf5DtypeDlistJpathfilter\xa3Gdefault\xf6Hrequired\xf4DtypeDlistKpermissions\x81DpullQframingmediatypes\x81X&application/mercurial-exp-framing-0006Rpathfilterprefixes\xd9\x01\x02\x82Epath:Lrootfilesin:Nrawrepoformats\x82LgeneraldeltaHrevlogv1
  s>     \r\n
  received frame(size=1591; request=1; stream=2; streamflags=encoded; type=command-response; flags=continuation)
  s>     8\r\n
  s>     \x00\x00\x00\x01\x00\x02\x002
  s>     \r\n
  s>     0\r\n
  s>     \r\n
  received frame(size=0; request=1; stream=2; streamflags=; type=command-response; flags=eos)
  response: gen[
    {
      b'commands': {
        b'branchmap': {
          b'args': {},
          b'permissions': [
            b'pull'
          ]
        },
        b'capabilities': {
          b'args': {},
          b'permissions': [
            b'pull'
          ]
        },
        b'changesetdata': {
          b'args': {
            b'fields': {
              b'default': set([]),
              b'required': False,
              b'type': b'set',
              b'validvalues': set([
                b'bookmarks',
                b'parents',
                b'phase',
                b'revision'
              ])
            },
            b'revisions': {
              b'required': True,
              b'type': b'list'
            }
          },
          b'permissions': [
            b'pull'
          ]
        },
        b'filedata': {
          b'args': {
            b'fields': {
              b'default': set([]),
              b'required': False,
              b'type': b'set',
              b'validvalues': set([
                b'parents',
                b'revision'
              ])
            },
            b'haveparents': {
              b'default': False,
              b'required': False,
              b'type': b'bool'
            },
            b'nodes': {
              b'required': True,
              b'type': b'list'
            },
            b'path': {
              b'required': True,
              b'type': b'bytes'
            }
          },
          b'permissions': [
            b'pull'
          ]
        },
        b'filesdata': {
          b'args': {
            b'fields': {
              b'default': set([]),
              b'required': False,
              b'type': b'set',
              b'validvalues': set([
                b'firstchangeset',
                b'parents',
                b'revision'
              ])
            },
            b'haveparents': {
              b'default': False,
              b'required': False,
              b'type': b'bool'
            },
            b'pathfilter': {
              b'default': None,
              b'required': False,
              b'type': b'dict'
            },
            b'revisions': {
              b'required': True,
              b'type': b'list'
            }
          },
          b'permissions': [
            b'pull'
          ],
          b'recommendedbatchsize': 50000
        },
        b'heads': {
          b'args': {
            b'publiconly': {
              b'default': False,
              b'required': False,
              b'type': b'bool'
            }
          },
          b'permissions': [
            b'pull'
          ]
        },
        b'known': {
          b'args': {
            b'nodes': {
              b'default': [],
              b'required': False,
              b'type': b'list'
            }
          },
          b'permissions': [
            b'pull'
          ]
        },
        b'listkeys': {
          b'args': {
            b'namespace': {
              b'required': True,
              b'type': b'bytes'
            }
          },
          b'permissions': [
            b'pull'
          ]
        },
        b'lookup': {
          b'args': {
            b'key': {
              b'required': True,
              b'type': b'bytes'
            }
          },
          b'permissions': [
            b'pull'
          ]
        },
        b'manifestdata': {
          b'args': {
            b'fields': {
              b'default': set([]),
              b'required': False,
              b'type': b'set',
              b'validvalues': set([
                b'parents',
                b'revision'
              ])
            },
            b'haveparents': {
              b'default': False,
              b'required': False,
              b'type': b'bool'
            },
            b'nodes': {
              b'required': True,
              b'type': b'list'
            },
            b'tree': {
              b'required': True,
              b'type': b'bytes'
            }
          },
          b'permissions': [
            b'pull'
          ],
          b'recommendedbatchsize': 100000
        },
        b'pushkey': {
          b'args': {
            b'key': {
              b'required': True,
              b'type': b'bytes'
            },
            b'namespace': {
              b'required': True,
              b'type': b'bytes'
            },
            b'new': {
              b'required': True,
              b'type': b'bytes'
            },
            b'old': {
              b'required': True,
              b'type': b'bytes'
            }
          },
          b'permissions': [
            b'push'
          ]
        },
        b'rawstorefiledata': {
          b'args': {
            b'files': {
              b'required': True,
              b'type': b'list'
            },
            b'pathfilter': {
              b'default': None,
              b'required': False,
              b'type': b'list'
            }
          },
          b'permissions': [
            b'pull'
          ]
        }
      },
      b'framingmediatypes': [
        b'application/mercurial-exp-framing-0006'
      ],
      b'pathfilterprefixes': set([
        b'path:',
        b'rootfilesin:'
      ]),
      b'rawrepoformats': [
        b'generaldelta',
        b'revlogv1'
      ]
    }
  ]
  (sent 2 HTTP requests and * bytes; received * bytes in responses) (glob)

  $ cat error.log