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Differential D4481

wireprotov2: define and implement "changesetdata" command
ClosedPublic

Authored by indygreg on Sep 5 2018, 12:20 PM.

Details

Reviewers
durin42
Group Reviewers
hg-reviewers
Commits
rHG9c2c77c73f23: wireprotov2: define and implement "changesetdata" command
Summary

This commit introduces the "changesetdata" wire protocol command.
The role of the command is to expose data associated with changelog
revisions, including the raw revision data itself.

This command is the first piece of a new clone/pull strategy that
is built on top of domain-specific commands for data retrieval.
Instead of a monolithic "getbundle" command that transfers all of the
things, we'll be introducing commands for fetching specific pieces
of data.

Since the changeset is the fundamental unit from which we derive
pointers to other data (manifests, file nodes, etc), it makes sense
to start reimplementing pull with this data.

The command accepts as arguments a set of root and head revisions
defining the changesets that should be fetched as well as an explicit
list of nodes. By default, the command returns only the node values:
the client must explicitly request additional fields be added to the
response. Current supported fields are the list of parent nodes and
the revision fulltext.

My plan is to eventually add support for transferring other data
associated with changesets, including phases, bookmarks, obsolescence
markers, etc. Since the response format is CBOR, we'll be able to add
this data into the response object relatively easily (it should be
as simple as adding a key in a map).

The documentation captures a number of TODO items. Some of these may
require BC breaking changes. That's fine: wire protocol v2 is still
highly experimental.

Diff Detail

Repository
rHG Mercurial
Lint
Automatic diff as part of commit; lint not applicable.
Unit
Automatic diff as part of commit; unit tests not applicable.

Event Timeline

indygreg created this revision.Sep 5 2018, 12:20 PM
durin42 accepted this revision.Sep 12 2018, 11:16 AM
This revision is now accepted and ready to land.Sep 12 2018, 11:16 AM
indygreg updated this revision to Diff 10962.Sep 12 2018, 1:11 PM
Closed by commit rHG9c2c77c73f23: wireprotov2: define and implement "changesetdata" command (authored by indygreg). · Explain WhySep 14 2018, 11:15 PM
This revision was automatically updated to reflect the committed changes.

Revision Contents
Changeset List

Diff 11059

mercurial/exchange.py

msg = _("required features are not" msg = _("required features are not"
" supported in the destination:" " supported in the destination:"
" %s") % (', '.join(sorted(missing))) " %s") % (', '.join(sorted(missing)))
raise error.Abort(msg) raise error.Abort(msg)
pullop.trmanager = transactionmanager(repo, 'pull', remote.url()) pullop.trmanager = transactionmanager(repo, 'pull', remote.url())
with repo.wlock(), repo.lock(), pullop.trmanager: with repo.wlock(), repo.lock(), pullop.trmanager:
# Use the modern wire protocol, if available. # Use the modern wire protocol, if available.
if remote.capable('exchangev2'): if remote.capable('command-changesetdata'):
exchangev2.pull(pullop) exchangev2.pull(pullop)
else: else:
# This should ideally be in _pullbundle2(). However, it needs to run # This should ideally be in _pullbundle2(). However, it needs to run
# before discovery to avoid extra work. # before discovery to avoid extra work.
_maybeapplyclonebundle(pullop) _maybeapplyclonebundle(pullop)
streamclone.maybeperformlegacystreamclone(pullop) streamclone.maybeperformlegacystreamclone(pullop)
_pulldiscovery(pullop) _pulldiscovery(pullop)
if pullop.canusebundle2: if pullop.canusebundle2:

mercurial/help/internals/wireprotocolv2.txt

An array of bytestrings defining the supported framing protocol An array of bytestrings defining the supported framing protocol
media types. Servers will not accept media types not in this list. media types. Servers will not accept media types not in this list.
rawrepoformats rawrepoformats
An array of storage formats the repository is using. This set of An array of storage formats the repository is using. This set of
requirements can be used to determine whether a client can read a requirements can be used to determine whether a client can read a
*raw* copy of file data available. *raw* copy of file data available.
changesetdata
-------------
Obtain various data related to changesets.
The command accepts the following arguments:
noderange
(array of arrays of bytestrings) An array of 2 elements, each being an
array of node bytestrings. The first array denotes the changelog revisions
that are already known to the client. The second array denotes the changelog
revision DAG heads to fetch. The argument essentially defines a DAG range
bounded by root and head nodes to fetch.
The roots array may be empty. The heads array must be defined.
nodes
(array of bytestrings) Changelog revisions to request explicitly.
fields
(set of bytestring) Which data associated with changelog revisions to
fetch. The following values are recognized:
parents
Parent revisions.
revision
The raw, revision data for the changelog entry. The hash of this data
will match the revision's node value.
The server resolves the set of revisions relevant to the request by taking
the union of the ``noderange`` and ``nodes`` arguments. At least one of these
arguments must be defined.
The response bytestream starts with a CBOR map describing the data that follows.
This map has the following bytestring keys:
totalitems
(unsigned integer) Total number of changelog revisions whose data is being
transferred.
Following the map header is a series of 0 or more CBOR values. If values
are present, the first value will always be a map describing a single changeset
revision. If revision data is requested, the raw revision data (encoded as
a CBOR bytestring) will follow the map describing it. Otherwise, another CBOR
map describing the next changeset revision will occur.
Each map has the following bytestring keys:
node
(bytestring) The node value for this revision. This is the SHA-1 hash of
the raw revision data.
parents (optional)
(array of bytestrings) The nodes representing the parent revisions of this
revision. Only present if ``parents`` data is being requested.
revisionsize (optional)
(unsigned integer) Indicates the size of raw revision data that follows this
map. The following data contains a serialized form of the changeset data,
including the author, date, commit message, set of changed files, manifest
node, and other metadata.
Only present if ``revision`` data was requested and the data follows this
map.
If nodes are requested via ``noderange``, they will be emitted in DAG order,
parents always before children.
If nodes are requested via ``nodes``, they will be emitted in requested order.
Nodes from ``nodes`` are emitted before nodes from ``noderange``.
TODO support different revision selection mechanisms (e.g. non-public, specific
revisions)
TODO support different hash "namespaces" for revisions (e.g. sha-1 versus other)
TODO support emitting phases data
TODO support emitting bookmarks data
TODO support emitting obsolescence data
TODO support filtering based on relevant paths (narrow clone)
TODO support depth limiting
TODO support hgtagsfnodes cache / tags data
TODO support branch heads cache
heads heads
----- -----
Obtain DAG heads in the repository. Obtain DAG heads in the repository.
The command accepts the following arguments: The command accepts the following arguments:
publiconly (optional) publiconly (optional)

mercurial/httppeer.py

# advertised from the "capabilities" wire protocol command. However, # advertised from the "capabilities" wire protocol command. However,
# version 2 of that command works differently. # version 2 of that command works differently.
# Maps to commands that are available. # Maps to commands that are available.
if name in ('branchmap', 'getbundle', 'known', 'lookup', 'pushkey'): if name in ('branchmap', 'getbundle', 'known', 'lookup', 'pushkey'):
return True return True
# Other concepts. # Other concepts.
# TODO remove exchangev2 once we have a command implemented. if name in ('bundle2'):
if name in ('bundle2', 'exchangev2'):
return True return True
# Alias command-* to presence of command of that name. # Alias command-* to presence of command of that name.
if name.startswith('command-'): if name.startswith('command-'):
return name[len('command-'):] in self._descriptor['commands'] return name[len('command-'):] in self._descriptor['commands']
return False return False

mercurial/wireprotov2server.py

# Copyright 21 May 2005 - (c) 2005 Jake Edge <jake@edge2.net> # Copyright 21 May 2005 - (c) 2005 Jake Edge <jake@edge2.net>
# Copyright 2005-2007 Matt Mackall <mpm@selenic.com> # Copyright 2005-2007 Matt Mackall <mpm@selenic.com>
# #
# This software may be used and distributed according to the terms of the # This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version. # GNU General Public License version 2 or any later version.
from __future__ import absolute_import from __future__ import absolute_import
import contextlib import contextlib
from .i18n import _ from .i18n import _
from .node import (
nullid,
)
from . import ( from . import (
discovery,
encoding, encoding,
error, error,
pycompat, pycompat,
streamclone, streamclone,
util, util,
wireprotoframing, wireprotoframing,
wireprototypes, wireprototypes,
) )
def branchmapv2(repo, proto): def branchmapv2(repo, proto):
yield {encoding.fromlocal(k): v yield {encoding.fromlocal(k): v
for k, v in repo.branchmap().iteritems()} for k, v in repo.branchmap().iteritems()}
@wireprotocommand('capabilities', permission='pull') @wireprotocommand('capabilities', permission='pull')
def capabilitiesv2(repo, proto): def capabilitiesv2(repo, proto):
yield _capabilitiesv2(repo, proto) yield _capabilitiesv2(repo, proto)
@wireprotocommand('changesetdata',
args={
'noderange': [[b'0123456...'], [b'abcdef...']],
'nodes': [b'0123456...'],
'fields': {b'parents', b'revision'},
},
permission='pull')
def changesetdata(repo, proto, noderange=None, nodes=None, fields=None):
fields = fields or set()
if noderange is None and nodes is None:
raise error.WireprotoCommandError(
'noderange or nodes must be defined')
if noderange is not None:
if len(noderange) != 2:
raise error.WireprotoCommandError(
'noderange must consist of 2 elements')
if not noderange[1]:
raise error.WireprotoCommandError(
'heads in noderange request cannot be empty')
cl = repo.changelog
hasnode = cl.hasnode
seen = set()
outgoing = []
if nodes is not None:
outgoing.extend(n for n in nodes if hasnode(n))
seen |= set(outgoing)
if noderange is not None:
if noderange[0]:
common = [n for n in noderange[0] if hasnode(n)]
else:
common = [nullid]
for n in discovery.outgoing(repo, common, noderange[1]).missing:
if n not in seen:
outgoing.append(n)
# Don't need to add to seen here because this is the final
# source of nodes and there should be no duplicates in this
# list.
seen.clear()
if outgoing:
repo.hook('preoutgoing', throw=True, source='serve')
yield {
b'totalitems': len(outgoing),
}
# It is already topologically sorted by revision number.
for node in outgoing:
d = {
b'node': node,
}
if b'parents' in fields:
d[b'parents'] = cl.parents(node)
revisiondata = None
if b'revision' in fields:
revisiondata = cl.revision(node, raw=True)
d[b'revisionsize'] = len(revisiondata)
yield d
if revisiondata is not None:
yield revisiondata
@wireprotocommand('heads', @wireprotocommand('heads',
args={ args={
'publiconly': False, 'publiconly': False,
}, },
permission='pull') permission='pull')
def headsv2(repo, proto, publiconly=False): def headsv2(repo, proto, publiconly=False):
if publiconly: if publiconly:
repo = repo.filtered('immutable') repo = repo.filtered('immutable')

tests/test-http-protocol.t

s> \r\n s> \r\n
s> makefile('rb', None) s> makefile('rb', None)
s> HTTP/1.1 200 OK\r\n s> HTTP/1.1 200 OK\r\n
s> Server: testing stub value\r\n s> Server: testing stub value\r\n
s> Date: $HTTP_DATE$\r\n s> Date: $HTTP_DATE$\r\n
s> Content-Type: application/mercurial-cbor\r\n s> Content-Type: application/mercurial-cbor\r\n
s> Content-Length: *\r\n (glob) s> Content-Length: *\r\n (glob)
s> \r\n s> \r\n
s> \xa3GapibaseDapi/Dapis\xa1Pexp-http-v2-0001\xa4Hcommands\xa7Ibranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullEheads\xa2Dargs\xa1Jpubliconly\xf4Kpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\x81HdeadbeefKpermissions\x81DpullHlistkeys\xa2Dargs\xa1InamespaceBnsKpermissions\x81DpullFlookup\xa2Dargs\xa1CkeyCfooKpermissions\x81DpullGpushkey\xa2Dargs\xa4CkeyCkeyInamespaceBnsCnewCnewColdColdKpermissions\x81DpushKcompression\x81\xa1DnameDzlibQframingmediatypes\x81X&application/mercurial-exp-framing-0005Nrawrepoformats\x82LgeneraldeltaHrevlogv1Nv1capabilitiesY\x01\xc5batch branchmap $USUAL_BUNDLE2_CAPS_SERVER$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash s> \xa3GapibaseDapi/Dapis\xa1Pexp-http-v2-0001\xa4Hcommands\xa8Ibranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa3Ffields\xd9\x01\x02\x82GparentsHrevisionInoderange\x82\x81J0123456...\x81Iabcdef...Enodes\x81J0123456...Kpermissions\x81DpullEheads\xa2Dargs\xa1Jpubliconly\xf4Kpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\x81HdeadbeefKpermissions\x81DpullHlistkeys\xa2Dargs\xa1InamespaceBnsKpermissions\x81DpullFlookup\xa2Dargs\xa1CkeyCfooKpermissions\x81DpullGpushkey\xa2Dargs\xa4CkeyCkeyInamespaceBnsCnewCnewColdColdKpermissions\x81DpushKcompression\x81\xa1DnameDzlibQframingmediatypes\x81X&application/mercurial-exp-framing-0005Nrawrepoformats\x82LgeneraldeltaHrevlogv1Nv1capabilitiesY\x01\xc5batch branchmap $USUAL_BUNDLE2_CAPS_SERVER$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
sending heads command sending heads command
s> POST /api/exp-http-v2-0001/ro/heads HTTP/1.1\r\n s> POST /api/exp-http-v2-0001/ro/heads HTTP/1.1\r\n
s> Accept-Encoding: identity\r\n s> Accept-Encoding: identity\r\n
s> accept: application/mercurial-exp-framing-0005\r\n s> accept: application/mercurial-exp-framing-0005\r\n
s> content-type: application/mercurial-exp-framing-0005\r\n s> content-type: application/mercurial-exp-framing-0005\r\n
s> content-length: 20\r\n s> content-length: 20\r\n
s> host: $LOCALIP:$HGPORT\r\n (glob) s> host: $LOCALIP:$HGPORT\r\n (glob)
s> user-agent: Mercurial debugwireproto\r\n s> user-agent: Mercurial debugwireproto\r\n

tests/test-wireproto-command-capabilities.t

s> \r\n s> \r\n
s> makefile('rb', None) s> makefile('rb', None)
s> HTTP/1.1 200 OK\r\n s> HTTP/1.1 200 OK\r\n
s> Server: testing stub value\r\n s> Server: testing stub value\r\n
s> Date: $HTTP_DATE$\r\n s> Date: $HTTP_DATE$\r\n
s> Content-Type: application/mercurial-cbor\r\n s> Content-Type: application/mercurial-cbor\r\n
s> Content-Length: *\r\n (glob) s> Content-Length: *\r\n (glob)
s> \r\n s> \r\n
s> \xa3GapibaseDapi/Dapis\xa1Pexp-http-v2-0001\xa4Hcommands\xa7Ibranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullEheads\xa2Dargs\xa1Jpubliconly\xf4Kpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\x81HdeadbeefKpermissions\x81DpullHlistkeys\xa2Dargs\xa1InamespaceBnsKpermissions\x81DpullFlookup\xa2Dargs\xa1CkeyCfooKpermissions\x81DpullGpushkey\xa2Dargs\xa4CkeyCkeyInamespaceBnsCnewCnewColdColdKpermissions\x81DpushKcompression\x81\xa1DnameDzlibQframingmediatypes\x81X&application/mercurial-exp-framing-0005Nrawrepoformats\x82LgeneraldeltaHrevlogv1Nv1capabilitiesY\x01\xc5batch branchmap $USUAL_BUNDLE2_CAPS_SERVER$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash s> \xa3GapibaseDapi/Dapis\xa1Pexp-http-v2-0001\xa4Hcommands\xa8Ibranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa3Ffields\xd9\x01\x02\x82GparentsHrevisionInoderange\x82\x81J0123456...\x81Iabcdef...Enodes\x81J0123456...Kpermissions\x81DpullEheads\xa2Dargs\xa1Jpubliconly\xf4Kpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\x81HdeadbeefKpermissions\x81DpullHlistkeys\xa2Dargs\xa1InamespaceBnsKpermissions\x81DpullFlookup\xa2Dargs\xa1CkeyCfooKpermissions\x81DpullGpushkey\xa2Dargs\xa4CkeyCkeyInamespaceBnsCnewCnewColdColdKpermissions\x81DpushKcompression\x81\xa1DnameDzlibQframingmediatypes\x81X&application/mercurial-exp-framing-0005Nrawrepoformats\x82LgeneraldeltaHrevlogv1Nv1capabilitiesY\x01\xc5batch branchmap $USUAL_BUNDLE2_CAPS_SERVER$ 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> { cbor> {
b'apibase': b'api/', b'apibase': b'api/',
b'apis': { b'apis': {
b'exp-http-v2-0001': { b'exp-http-v2-0001': {
b'commands': { b'commands': {
b'branchmap': { b'branchmap': {
b'args': {}, b'args': {},
b'permissions': [ b'permissions': [
b'pull' b'pull'
] ]
}, },
b'capabilities': { b'capabilities': {
b'args': {}, b'args': {},
b'permissions': [ b'permissions': [
b'pull' b'pull'
] ]
}, },
b'changesetdata': {
b'args': {
b'fields': set([
b'parents',
b'revision'
]),
b'noderange': [
[
b'0123456...'
],
[
b'abcdef...'
]
],
b'nodes': [
b'0123456...'
]
},
b'permissions': [
b'pull'
]
},
b'heads': { b'heads': {
b'args': { b'args': {
b'publiconly': False b'publiconly': False
}, },
b'permissions': [ b'permissions': [
b'pull' b'pull'
] ]
}, },
s> \r\n s> \r\n
s> makefile('rb', None) s> makefile('rb', None)
s> HTTP/1.1 200 OK\r\n s> HTTP/1.1 200 OK\r\n
s> Server: testing stub value\r\n s> Server: testing stub value\r\n
s> Date: $HTTP_DATE$\r\n s> Date: $HTTP_DATE$\r\n
s> Content-Type: application/mercurial-cbor\r\n s> Content-Type: application/mercurial-cbor\r\n
s> Content-Length: *\r\n (glob) s> Content-Length: *\r\n (glob)
s> \r\n s> \r\n
s> \xa3GapibaseDapi/Dapis\xa1Pexp-http-v2-0001\xa4Hcommands\xa7Ibranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullEheads\xa2Dargs\xa1Jpubliconly\xf4Kpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\x81HdeadbeefKpermissions\x81DpullHlistkeys\xa2Dargs\xa1InamespaceBnsKpermissions\x81DpullFlookup\xa2Dargs\xa1CkeyCfooKpermissions\x81DpullGpushkey\xa2Dargs\xa4CkeyCkeyInamespaceBnsCnewCnewColdColdKpermissions\x81DpushKcompression\x81\xa1DnameDzlibQframingmediatypes\x81X&application/mercurial-exp-framing-0005Nrawrepoformats\x82LgeneraldeltaHrevlogv1Nv1capabilitiesY\x01\xc5batch branchmap $USUAL_BUNDLE2_CAPS_SERVER$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash s> \xa3GapibaseDapi/Dapis\xa1Pexp-http-v2-0001\xa4Hcommands\xa8Ibranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa3Ffields\xd9\x01\x02\x82GparentsHrevisionInoderange\x82\x81J0123456...\x81Iabcdef...Enodes\x81J0123456...Kpermissions\x81DpullEheads\xa2Dargs\xa1Jpubliconly\xf4Kpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\x81HdeadbeefKpermissions\x81DpullHlistkeys\xa2Dargs\xa1InamespaceBnsKpermissions\x81DpullFlookup\xa2Dargs\xa1CkeyCfooKpermissions\x81DpullGpushkey\xa2Dargs\xa4CkeyCkeyInamespaceBnsCnewCnewColdColdKpermissions\x81DpushKcompression\x81\xa1DnameDzlibQframingmediatypes\x81X&application/mercurial-exp-framing-0005Nrawrepoformats\x82LgeneraldeltaHrevlogv1Nv1capabilitiesY\x01\xc5batch branchmap $USUAL_BUNDLE2_CAPS_SERVER$ 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 sending capabilities command
s> POST /api/exp-http-v2-0001/ro/capabilities HTTP/1.1\r\n s> POST /api/exp-http-v2-0001/ro/capabilities HTTP/1.1\r\n
s> Accept-Encoding: identity\r\n s> Accept-Encoding: identity\r\n
s> *\r\n (glob) s> accept: application/mercurial-exp-framing-0005\r\n
s> content-type: application/mercurial-exp-framing-0005\r\n s> content-type: application/mercurial-exp-framing-0005\r\n
s> content-length: 27\r\n s> content-length: 27\r\n
s> host: $LOCALIP:$HGPORT\r\n (glob) s> host: $LOCALIP:$HGPORT\r\n (glob)
s> user-agent: Mercurial debugwireproto\r\n s> user-agent: Mercurial debugwireproto\r\n
s> \r\n s> \r\n
s> \x13\x00\x00\x01\x00\x01\x01\x11\xa1DnameLcapabilities s> \x13\x00\x00\x01\x00\x01\x01\x11\xa1DnameLcapabilities
s> makefile('rb', None) s> makefile('rb', None)
s> HTTP/1.1 200 OK\r\n s> HTTP/1.1 200 OK\r\n
s> Server: testing stub value\r\n s> Server: testing stub value\r\n
s> Date: $HTTP_DATE$\r\n s> Date: $HTTP_DATE$\r\n
s> Content-Type: application/mercurial-exp-framing-0005\r\n s> Content-Type: application/mercurial-exp-framing-0005\r\n
s> Transfer-Encoding: chunked\r\n s> Transfer-Encoding: chunked\r\n
s> \r\n s> \r\n
s> 13\r\n s> 13\r\n
s> \x0b\x00\x00\x01\x00\x02\x011 s> \x0b\x00\x00\x01\x00\x02\x011
s> \xa1FstatusBok s> \xa1FstatusBok
s> \r\n s> \r\n
received frame(size=11; request=1; stream=2; streamflags=stream-begin; type=command-response; flags=continuation) received frame(size=11; request=1; stream=2; streamflags=stream-begin; type=command-response; flags=continuation)
s> 1cc\r\n s> 243\r\n
s> \xc4\x01\x00\x01\x00\x02\x001 s> ;\x02\x00\x01\x00\x02\x001
s> \xa4Hcommands\xa7Ibranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullEheads\xa2Dargs\xa1Jpubliconly\xf4Kpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\x81HdeadbeefKpermissions\x81DpullHlistkeys\xa2Dargs\xa1InamespaceBnsKpermissions\x81DpullFlookup\xa2Dargs\xa1CkeyCfooKpermissions\x81DpullGpushkey\xa2Dargs\xa4CkeyCkeyInamespaceBnsCnewCnewColdColdKpermissions\x81DpushKcompression\x81\xa1DnameDzlibQframingmediatypes\x81X&application/mercurial-exp-framing-0005Nrawrepoformats\x82LgeneraldeltaHrevlogv1 s> \xa4Hcommands\xa8Ibranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa3Ffields\xd9\x01\x02\x82GparentsHrevisionInoderange\x82\x81J0123456...\x81Iabcdef...Enodes\x81J0123456...Kpermissions\x81DpullEheads\xa2Dargs\xa1Jpubliconly\xf4Kpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\x81HdeadbeefKpermissions\x81DpullHlistkeys\xa2Dargs\xa1InamespaceBnsKpermissions\x81DpullFlookup\xa2Dargs\xa1CkeyCfooKpermissions\x81DpullGpushkey\xa2Dargs\xa4CkeyCkeyInamespaceBnsCnewCnewColdColdKpermissions\x81DpushKcompression\x81\xa1DnameDzlibQframingmediatypes\x81X&application/mercurial-exp-framing-0005Nrawrepoformats\x82LgeneraldeltaHrevlogv1
s> \r\n s> \r\n
received frame(size=452; request=1; stream=2; streamflags=; type=command-response; flags=continuation) received frame(size=571; request=1; stream=2; streamflags=; type=command-response; flags=continuation)
s> 8\r\n s> 8\r\n
s> \x00\x00\x00\x01\x00\x02\x002 s> \x00\x00\x00\x01\x00\x02\x002
s> \r\n s> \r\n
s> 0\r\n s> 0\r\n
s> \r\n s> \r\n
received frame(size=0; request=1; stream=2; streamflags=; type=command-response; flags=eos) received frame(size=0; request=1; stream=2; streamflags=; type=command-response; flags=eos)
response: gen[ response: gen[
{ {
b'commands': { b'commands': {
b'branchmap': { b'branchmap': {
b'args': {}, b'args': {},
b'permissions': [ b'permissions': [
b'pull' b'pull'
] ]
}, },
b'capabilities': { b'capabilities': {
b'args': {}, b'args': {},
b'permissions': [ b'permissions': [
b'pull' b'pull'
] ]
}, },
b'changesetdata': {
b'args': {
b'fields': set([
b'parents',
b'revision'
]),
b'noderange': [
[
b'0123456...'
],
[
b'abcdef...'
]
],
b'nodes': [
b'0123456...'
]
},
b'permissions': [
b'pull'
]
},
b'heads': { b'heads': {
b'args': { b'args': {
b'publiconly': False b'publiconly': False
}, },
b'permissions': [ b'permissions': [
b'pull' b'pull'
] ]
}, },

tests/test-wireproto-command-changesetdata.t

  • This file was added.
$ . $TESTDIR/wireprotohelpers.sh
$ hg init server
$ enablehttpv2 server
$ cd server
$ echo a0 > a
$ echo b0 > b
$ hg -q commit -A -m 'commit 0'
$ echo a1 > a
$ echo b1 > b
$ hg commit -m 'commit 1'
$ echo b2 > b
$ hg commit -m 'commit 2'
$ hg -q up -r 0
$ echo a2 > a
$ hg commit -m 'commit 3'
created new head
$ hg log -G -T '{rev}:{node} {desc}\n'
@ 3:eae5f82c2e622368d27daecb76b7e393d0f24211 commit 3
|
| o 2:0bb8ad894a15b15380b2a2a5b183e20f2a4b28dd commit 2
| |
| o 1:7592917e1c3e82677cb0a4bc715ca25dd12d28c1 commit 1
|/
o 0:3390ef850073fbc2f0dfff2244342c8e9229013a commit 0
$ hg serve -p $HGPORT -d --pid-file hg.pid -E error.log
$ cat hg.pid > $DAEMON_PIDS
No arguments is an invalid request
$ sendhttpv2peer << EOF
> command changesetdata
> EOF
creating http peer for wire protocol version 2
sending changesetdata command
s> POST /api/exp-http-v2-0001/ro/changesetdata HTTP/1.1\r\n
s> Accept-Encoding: identity\r\n
s> accept: application/mercurial-exp-framing-0005\r\n
s> content-type: application/mercurial-exp-framing-0005\r\n
s> content-length: 28\r\n
s> host: $LOCALIP:$HGPORT\r\n (glob)
s> user-agent: Mercurial debugwireproto\r\n
s> \r\n
s> \x14\x00\x00\x01\x00\x01\x01\x11\xa1DnameMchangesetdata
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-0005\r\n
s> Transfer-Encoding: chunked\r\n
s> \r\n
s> 49\r\n
s> A\x00\x00\x01\x00\x02\x012
s> \xa2Eerror\xa1GmessageX"noderange or nodes must be definedFstatusEerror
s> \r\n
received frame(size=65; request=1; stream=2; streamflags=stream-begin; type=command-response; flags=eos)
s> 0\r\n
s> \r\n
abort: noderange or nodes must be defined!
[255]
Empty noderange heads results in an error
$ sendhttpv2peer << EOF
> command changesetdata
> noderange eval:[[],[]]
> EOF
creating http peer for wire protocol version 2
sending changesetdata command
s> POST /api/exp-http-v2-0001/ro/changesetdata HTTP/1.1\r\n
s> Accept-Encoding: identity\r\n
s> accept: application/mercurial-exp-framing-0005\r\n
s> content-type: application/mercurial-exp-framing-0005\r\n
s> content-length: 47\r\n
s> host: $LOCALIP:$HGPORT\r\n (glob)
s> user-agent: Mercurial debugwireproto\r\n
s> \r\n
s> \'\x00\x00\x01\x00\x01\x01\x11\xa2Dargs\xa1Inoderange\x82\x80\x80DnameMchangesetdata
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-0005\r\n
s> Transfer-Encoding: chunked\r\n
s> \r\n
s> 51\r\n
s> I\x00\x00\x01\x00\x02\x012
s> \xa2Eerror\xa1GmessageX*heads in noderange request cannot be emptyFstatusEerror
s> \r\n
received frame(size=73; request=1; stream=2; streamflags=stream-begin; type=command-response; flags=eos)
s> 0\r\n
s> \r\n
abort: heads in noderange request cannot be empty!
[255]
Sending just noderange heads sends all revisions
$ sendhttpv2peer << EOF
> command changesetdata
> noderange eval:[[], [b'\x0b\xb8\xad\x89\x4a\x15\xb1\x53\x80\xb2\xa2\xa5\xb1\x83\xe2\x0f\x2a\x4b\x28\xdd', b'\xea\xe5\xf8\x2c\x2e\x62\x23\x68\xd2\x7d\xae\xcb\x76\xb7\xe3\x93\xd0\xf2\x42\x11']]
> EOF
creating http peer for wire protocol version 2
sending changesetdata command
s> POST /api/exp-http-v2-0001/ro/changesetdata HTTP/1.1\r\n
s> Accept-Encoding: identity\r\n
s> accept: application/mercurial-exp-framing-0005\r\n
s> content-type: application/mercurial-exp-framing-0005\r\n
s> content-length: 89\r\n
s> host: $LOCALIP:$HGPORT\r\n (glob)
s> user-agent: Mercurial debugwireproto\r\n
s> \r\n
s> Q\x00\x00\x01\x00\x01\x01\x11\xa2Dargs\xa1Inoderange\x82\x80\x82T\x0b\xb8\xad\x89J\x15\xb1S\x80\xb2\xa2\xa5\xb1\x83\xe2\x0f*K(\xddT\xea\xe5\xf8,.b#h\xd2}\xae\xcbv\xb7\xe3\x93\xd0\xf2B\x11DnameMchangesetdata
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-0005\r\n
s> Transfer-Encoding: chunked\r\n
s> \r\n
s> 13\r\n
s> \x0b\x00\x00\x01\x00\x02\x011
s> \xa1FstatusBok
s> \r\n
received frame(size=11; request=1; stream=2; streamflags=stream-begin; type=command-response; flags=continuation)
s> 81\r\n
s> y\x00\x00\x01\x00\x02\x001
s> \xa1Jtotalitems\x04\xa1DnodeT3\x90\xef\x85\x00s\xfb\xc2\xf0\xdf\xff"D4,\x8e\x92)\x01:\xa1DnodeTu\x92\x91~\x1c>\x82g|\xb0\xa4\xbcq\\\xa2]\xd1-(\xc1\xa1DnodeT\x0b\xb8\xad\x89J\x15\xb1S\x80\xb2\xa2\xa5\xb1\x83\xe2\x0f*K(\xdd\xa1DnodeT\xea\xe5\xf8,.b#h\xd2}\xae\xcbv\xb7\xe3\x93\xd0\xf2B\x11
s> \r\n
received frame(size=121; request=1; stream=2; streamflags=; 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'totalitems': 4
},
{
b'node': b'3\x90\xef\x85\x00s\xfb\xc2\xf0\xdf\xff"D4,\x8e\x92)\x01:'
},
{
b'node': b'u\x92\x91~\x1c>\x82g|\xb0\xa4\xbcq\\\xa2]\xd1-(\xc1'
},
{
b'node': b'\x0b\xb8\xad\x89J\x15\xb1S\x80\xb2\xa2\xa5\xb1\x83\xe2\x0f*K(\xdd'
},
{
b'node': b'\xea\xe5\xf8,.b#h\xd2}\xae\xcbv\xb7\xe3\x93\xd0\xf2B\x11'
}
]
Sending root nodes limits what data is sent
$ sendhttpv2peer << EOF
> command changesetdata
> noderange eval:[[b'\x33\x90\xef\x85\x00\x73\xfb\xc2\xf0\xdf\xff\x22\x44\x34\x2c\x8e\x92\x29\x01\x3a'], [b'\x0b\xb8\xad\x89\x4a\x15\xb1\x53\x80\xb2\xa2\xa5\xb1\x83\xe2\x0f\x2a\x4b\x28\xdd']]
> EOF
creating http peer for wire protocol version 2
sending changesetdata command
s> POST /api/exp-http-v2-0001/ro/changesetdata HTTP/1.1\r\n
s> Accept-Encoding: identity\r\n
s> accept: application/mercurial-exp-framing-0005\r\n
s> content-type: application/mercurial-exp-framing-0005\r\n
s> content-length: 89\r\n
s> host: $LOCALIP:$HGPORT\r\n (glob)
s> user-agent: Mercurial debugwireproto\r\n
s> \r\n
s> Q\x00\x00\x01\x00\x01\x01\x11\xa2Dargs\xa1Inoderange\x82\x81T3\x90\xef\x85\x00s\xfb\xc2\xf0\xdf\xff"D4,\x8e\x92)\x01:\x81T\x0b\xb8\xad\x89J\x15\xb1S\x80\xb2\xa2\xa5\xb1\x83\xe2\x0f*K(\xddDnameMchangesetdata
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-0005\r\n
s> Transfer-Encoding: chunked\r\n
s> \r\n
s> 13\r\n
s> \x0b\x00\x00\x01\x00\x02\x011
s> \xa1FstatusBok
s> \r\n
received frame(size=11; request=1; stream=2; streamflags=stream-begin; type=command-response; flags=continuation)
s> 4b\r\n
s> C\x00\x00\x01\x00\x02\x001
s> \xa1Jtotalitems\x02\xa1DnodeTu\x92\x91~\x1c>\x82g|\xb0\xa4\xbcq\\\xa2]\xd1-(\xc1\xa1DnodeT\x0b\xb8\xad\x89J\x15\xb1S\x80\xb2\xa2\xa5\xb1\x83\xe2\x0f*K(\xdd
s> \r\n
received frame(size=67; request=1; stream=2; streamflags=; 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'totalitems': 2
},
{
b'node': b'u\x92\x91~\x1c>\x82g|\xb0\xa4\xbcq\\\xa2]\xd1-(\xc1'
},
{
b'node': b'\x0b\xb8\xad\x89J\x15\xb1S\x80\xb2\xa2\xa5\xb1\x83\xe2\x0f*K(\xdd'
}
]
Requesting data on a single node by node works
$ sendhttpv2peer << EOF
> command changesetdata
> nodes eval:[b'\x33\x90\xef\x85\x00\x73\xfb\xc2\xf0\xdf\xff\x22\x44\x34\x2c\x8e\x92\x29\x01\x3a']
> EOF
creating http peer for wire protocol version 2
sending changesetdata command
s> POST /api/exp-http-v2-0001/ro/changesetdata HTTP/1.1\r\n
s> Accept-Encoding: identity\r\n
s> accept: application/mercurial-exp-framing-0005\r\n
s> content-type: application/mercurial-exp-framing-0005\r\n
s> content-length: 62\r\n
s> host: $LOCALIP:$HGPORT\r\n (glob)
s> user-agent: Mercurial debugwireproto\r\n
s> \r\n
s> 6\x00\x00\x01\x00\x01\x01\x11\xa2Dargs\xa1Enodes\x81T3\x90\xef\x85\x00s\xfb\xc2\xf0\xdf\xff"D4,\x8e\x92)\x01:DnameMchangesetdata
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-0005\r\n
s> Transfer-Encoding: chunked\r\n
s> \r\n
s> 13\r\n
s> \x0b\x00\x00\x01\x00\x02\x011
s> \xa1FstatusBok
s> \r\n
received frame(size=11; request=1; stream=2; streamflags=stream-begin; type=command-response; flags=continuation)
s> 30\r\n
s> (\x00\x00\x01\x00\x02\x001
s> \xa1Jtotalitems\x01\xa1DnodeT3\x90\xef\x85\x00s\xfb\xc2\xf0\xdf\xff"D4,\x8e\x92)\x01:
s> \r\n
received frame(size=40; request=1; stream=2; streamflags=; 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'totalitems': 1
},
{
b'node': b'3\x90\xef\x85\x00s\xfb\xc2\xf0\xdf\xff"D4,\x8e\x92)\x01:'
}
]
Specifying a noderange and nodes takes union
$ sendhttpv2peer << EOF
> command changesetdata
> noderange eval:[[b'\x75\x92\x91\x7e\x1c\x3e\x82\x67\x7c\xb0\xa4\xbc\x71\x5c\xa2\x5d\xd1\x2d\x28\xc1'], [b'\x0b\xb8\xad\x89\x4a\x15\xb1\x53\x80\xb2\xa2\xa5\xb1\x83\xe2\x0f\x2a\x4b\x28\xdd']]
> nodes eval:[b'\xea\xe5\xf8\x2c\x2e\x62\x23\x68\xd2\x7d\xae\xcb\x76\xb7\xe3\x93\xd0\xf2\x42\x11']
> EOF
creating http peer for wire protocol version 2
sending changesetdata command
s> POST /api/exp-http-v2-0001/ro/changesetdata HTTP/1.1\r\n
s> Accept-Encoding: identity\r\n
s> accept: application/mercurial-exp-framing-0005\r\n
s> content-type: application/mercurial-exp-framing-0005\r\n
s> content-length: 117\r\n
s> host: $LOCALIP:$HGPORT\r\n (glob)
s> user-agent: Mercurial debugwireproto\r\n
s> \r\n
s> m\x00\x00\x01\x00\x01\x01\x11\xa2Dargs\xa2Inoderange\x82\x81Tu\x92\x91~\x1c>\x82g|\xb0\xa4\xbcq\\\xa2]\xd1-(\xc1\x81T\x0b\xb8\xad\x89J\x15\xb1S\x80\xb2\xa2\xa5\xb1\x83\xe2\x0f*K(\xddEnodes\x81T\xea\xe5\xf8,.b#h\xd2}\xae\xcbv\xb7\xe3\x93\xd0\xf2B\x11DnameMchangesetdata
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-0005\r\n
s> Transfer-Encoding: chunked\r\n
s> \r\n
s> 13\r\n
s> \x0b\x00\x00\x01\x00\x02\x011
s> \xa1FstatusBok
s> \r\n
received frame(size=11; request=1; stream=2; streamflags=stream-begin; type=command-response; flags=continuation)
s> 4b\r\n
s> C\x00\x00\x01\x00\x02\x001
s> \xa1Jtotalitems\x02\xa1DnodeT\xea\xe5\xf8,.b#h\xd2}\xae\xcbv\xb7\xe3\x93\xd0\xf2B\x11\xa1DnodeT\x0b\xb8\xad\x89J\x15\xb1S\x80\xb2\xa2\xa5\xb1\x83\xe2\x0f*K(\xdd
s> \r\n
received frame(size=67; request=1; stream=2; streamflags=; 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'totalitems': 2
},
{
b'node': b'\xea\xe5\xf8,.b#h\xd2}\xae\xcbv\xb7\xe3\x93\xd0\xf2B\x11'
},
{
b'node': b'\x0b\xb8\xad\x89J\x15\xb1S\x80\xb2\xa2\xa5\xb1\x83\xe2\x0f*K(\xdd'
}
]
Parents data is transferred upon request
$ sendhttpv2peer << EOF
> command changesetdata
> fields eval:[b'parents']
> nodes eval:[b'\xea\xe5\xf8\x2c\x2e\x62\x23\x68\xd2\x7d\xae\xcb\x76\xb7\xe3\x93\xd0\xf2\x42\x11']
> EOF
creating http peer for wire protocol version 2
sending changesetdata command
s> POST /api/exp-http-v2-0001/ro/changesetdata HTTP/1.1\r\n
s> Accept-Encoding: identity\r\n
s> accept: application/mercurial-exp-framing-0005\r\n
s> content-type: application/mercurial-exp-framing-0005\r\n
s> content-length: 78\r\n
s> host: $LOCALIP:$HGPORT\r\n (glob)
s> user-agent: Mercurial debugwireproto\r\n
s> \r\n
s> F\x00\x00\x01\x00\x01\x01\x11\xa2Dargs\xa2Ffields\x81GparentsEnodes\x81T\xea\xe5\xf8,.b#h\xd2}\xae\xcbv\xb7\xe3\x93\xd0\xf2B\x11DnameMchangesetdata
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-0005\r\n
s> Transfer-Encoding: chunked\r\n
s> \r\n
s> 13\r\n
s> \x0b\x00\x00\x01\x00\x02\x011
s> \xa1FstatusBok
s> \r\n
received frame(size=11; request=1; stream=2; streamflags=stream-begin; type=command-response; flags=continuation)
s> 63\r\n
s> [\x00\x00\x01\x00\x02\x001
s> \xa1Jtotalitems\x01\xa2DnodeT\xea\xe5\xf8,.b#h\xd2}\xae\xcbv\xb7\xe3\x93\xd0\xf2B\x11Gparents\x82T3\x90\xef\x85\x00s\xfb\xc2\xf0\xdf\xff"D4,\x8e\x92)\x01:T\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00
s> \r\n
received frame(size=91; request=1; stream=2; streamflags=; 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'totalitems': 1
},
{
b'node': b'\xea\xe5\xf8,.b#h\xd2}\xae\xcbv\xb7\xe3\x93\xd0\xf2B\x11',
b'parents': [
b'3\x90\xef\x85\x00s\xfb\xc2\xf0\xdf\xff"D4,\x8e\x92)\x01:',
b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
]
}
]
Revision data is transferred upon request
$ sendhttpv2peer << EOF
> command changesetdata
> fields eval:[b'revision']
> nodes eval:[b'\xea\xe5\xf8\x2c\x2e\x62\x23\x68\xd2\x7d\xae\xcb\x76\xb7\xe3\x93\xd0\xf2\x42\x11']
> EOF
creating http peer for wire protocol version 2
sending changesetdata command
s> POST /api/exp-http-v2-0001/ro/changesetdata HTTP/1.1\r\n
s> Accept-Encoding: identity\r\n
s> accept: application/mercurial-exp-framing-0005\r\n
s> content-type: application/mercurial-exp-framing-0005\r\n
s> content-length: 79\r\n
s> host: $LOCALIP:$HGPORT\r\n (glob)
s> user-agent: Mercurial debugwireproto\r\n
s> \r\n
s> G\x00\x00\x01\x00\x01\x01\x11\xa2Dargs\xa2Ffields\x81HrevisionEnodes\x81T\xea\xe5\xf8,.b#h\xd2}\xae\xcbv\xb7\xe3\x93\xd0\xf2B\x11DnameMchangesetdata
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-0005\r\n
s> Transfer-Encoding: chunked\r\n
s> \r\n
s> 13\r\n
s> \x0b\x00\x00\x01\x00\x02\x011
s> \xa1FstatusBok
s> \r\n
received frame(size=11; request=1; stream=2; streamflags=stream-begin; type=command-response; flags=continuation)
s> 7e\r\n
s> v\x00\x00\x01\x00\x02\x001
s> \xa1Jtotalitems\x01\xa2DnodeT\xea\xe5\xf8,.b#h\xd2}\xae\xcbv\xb7\xe3\x93\xd0\xf2B\x11Lrevisionsize\x18=X=1b74476799ec8318045db759b1b4bcc9b839d0aa\n
s> test\n
s> 0 0\n
s> a\n
s> \n
s> commit 3
s> \r\n
received frame(size=118; request=1; stream=2; streamflags=; 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'totalitems': 1
},
{
b'node': b'\xea\xe5\xf8,.b#h\xd2}\xae\xcbv\xb7\xe3\x93\xd0\xf2B\x11',
b'revisionsize': 61
},
b'1b74476799ec8318045db759b1b4bcc9b839d0aa\ntest\n0 0\na\n\ncommit 3'
]
Multiple fields can be transferred
$ sendhttpv2peer << EOF
> command changesetdata
> fields eval:[b'parents', b'revision']
> nodes eval:[b'\xea\xe5\xf8\x2c\x2e\x62\x23\x68\xd2\x7d\xae\xcb\x76\xb7\xe3\x93\xd0\xf2\x42\x11']
> EOF
creating http peer for wire protocol version 2
sending changesetdata command
s> POST /api/exp-http-v2-0001/ro/changesetdata HTTP/1.1\r\n
s> Accept-Encoding: identity\r\n
s> accept: application/mercurial-exp-framing-0005\r\n
s> content-type: application/mercurial-exp-framing-0005\r\n
s> content-length: 87\r\n
s> host: $LOCALIP:$HGPORT\r\n (glob)
s> user-agent: Mercurial debugwireproto\r\n
s> \r\n
s> O\x00\x00\x01\x00\x01\x01\x11\xa2Dargs\xa2Ffields\x82GparentsHrevisionEnodes\x81T\xea\xe5\xf8,.b#h\xd2}\xae\xcbv\xb7\xe3\x93\xd0\xf2B\x11DnameMchangesetdata
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-0005\r\n
s> Transfer-Encoding: chunked\r\n
s> \r\n
s> 13\r\n
s> \x0b\x00\x00\x01\x00\x02\x011
s> \xa1FstatusBok
s> \r\n
received frame(size=11; request=1; stream=2; streamflags=stream-begin; type=command-response; flags=continuation)
s> b1\r\n
s> \xa9\x00\x00\x01\x00\x02\x001
s> \xa1Jtotalitems\x01\xa3DnodeT\xea\xe5\xf8,.b#h\xd2}\xae\xcbv\xb7\xe3\x93\xd0\xf2B\x11Gparents\x82T3\x90\xef\x85\x00s\xfb\xc2\xf0\xdf\xff"D4,\x8e\x92)\x01:T\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00Lrevisionsize\x18=X=1b74476799ec8318045db759b1b4bcc9b839d0aa\n
s> test\n
s> 0 0\n
s> a\n
s> \n
s> commit 3
s> \r\n
received frame(size=169; request=1; stream=2; streamflags=; 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'totalitems': 1
},
{
b'node': b'\xea\xe5\xf8,.b#h\xd2}\xae\xcbv\xb7\xe3\x93\xd0\xf2B\x11',
b'parents': [
b'3\x90\xef\x85\x00s\xfb\xc2\xf0\xdf\xff"D4,\x8e\x92)\x01:',
b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
],
b'revisionsize': 61
},
b'1b74476799ec8318045db759b1b4bcc9b839d0aa\ntest\n0 0\na\n\ncommit 3'
]
$ cat error.log