exchangev2: fetch changeset revisions
All Mercurial repository data is derived from changesets:
you can't do anything unless you have changesets. Therefore,
it makes sense for changesets to be the first piece of data
that we transfer as part of pull.
To do this, we call our new "changesetdata" command, requesting
parents and revision data. This gives us all the data that a
changegroup delta group would give us. We simply normalize
this data into what addgroup() expects and call that API on
the changelog to bulk insert revisions into the changelog.
Code in this commit is heavily borrowed from
changegroup.cg1unpacker.apply().
Differential Revision: https://phab.mercurial-scm.org/D4482
Tests for wire protocol version 2 exchange.
Tests in this file should be folded into existing tests once protocol
v2 has enough features that it can be enabled via #testcase in existing
tests.
$ . $TESTDIR/wireprotohelpers.sh
$ enablehttpv2client
$ hg init server-simple
$ enablehttpv2 server-simple
$ cd server-simple
$ cat >> .hg/hgrc << EOF
> [phases]
> publish = false
> EOF
$ echo a0 > a
$ echo b0 > b
$ hg -q commit -A -m 'commit 0'
$ echo a1 > a
$ hg commit -m 'commit 1'
$ hg phase --public -r .
$ echo a2 > a
$ hg commit -m 'commit 2'
$ hg -q up -r 0
$ echo b1 > b
$ hg -q commit -m 'head 2 commit 1'
$ echo b2 > b
$ hg -q commit -m 'head 2 commit 2'
$ hg serve -p $HGPORT -d --pid-file hg.pid -E error.log
$ cat hg.pid > $DAEMON_PIDS
$ cd ..
Test basic clone
$ hg --debug clone -U http://localhost:$HGPORT client-simple
using http://localhost:$HGPORT/
sending capabilities command
query 1; heads
sending 2 commands
sending command heads: {}
sending command known: {
'nodes': []
}
received frame(size=11; request=1; stream=2; streamflags=stream-begin; type=command-response; flags=continuation)
received frame(size=43; request=1; stream=2; streamflags=; type=command-response; flags=continuation)
received frame(size=0; request=1; stream=2; streamflags=; type=command-response; flags=eos)
received frame(size=11; request=3; stream=2; streamflags=; type=command-response; flags=continuation)
received frame(size=1; request=3; stream=2; streamflags=; type=command-response; flags=continuation)
received frame(size=0; request=3; stream=2; streamflags=; type=command-response; flags=eos)
sending 1 commands
sending command changesetdata: {
'fields': set([
'parents',
'revision'
]),
'noderange': [
[],
[
'\xca\xa2\xa4eE\x1d\xd1\xfa\xcd\xa0\xf5\xb1#\x12\xc3UXA\x88\xa1',
'\xcd%4vk\xec\xe18\xc7\xc1\xaf\xdch%0/\x0fb\xd8\x1f'
]
]
}
received frame(size=11; request=1; stream=2; streamflags=stream-begin; type=command-response; flags=continuation)
received frame(size=809; request=1; stream=2; streamflags=; type=command-response; flags=continuation)
received frame(size=0; request=1; stream=2; streamflags=; type=command-response; flags=eos)
add changeset 3390ef850073
add changeset 4432d83626e8
add changeset cd2534766bec
add changeset e96ae20f4188
add changeset caa2a465451d
updating the branch cache
new changesets 3390ef850073:caa2a465451d
All changesets should have been transferred
$ hg -R client-simple debugindex -c
rev linkrev nodeid p1 p2
0 0 3390ef850073 000000000000 000000000000
1 1 4432d83626e8 3390ef850073 000000000000
2 2 cd2534766bec 4432d83626e8 000000000000
3 3 e96ae20f4188 3390ef850073 000000000000
4 4 caa2a465451d e96ae20f4188 000000000000
$ hg -R client-simple log -G -T '{rev} {node} {phase}\n'
o 4 caa2a465451dd1facda0f5b12312c355584188a1 public
|
o 3 e96ae20f4188487b9ae4ef3941c27c81143146e5 public
|
| o 2 cd2534766bece138c7c1afdc6825302f0f62d81f public
| |
| o 1 4432d83626e8a98655f062ec1f2a43b07f7fbbb0 public
|/
o 0 3390ef850073fbc2f0dfff2244342c8e9229013a public
Cloning only a specific revision works
$ hg --debug clone -U -r 4432d83626e8 http://localhost:$HGPORT client-singlehead
using http://localhost:$HGPORT/
sending capabilities command
sending 1 commands
sending command lookup: {
'key': '4432d83626e8'
}
received frame(size=11; request=1; stream=2; streamflags=stream-begin; type=command-response; flags=continuation)
received frame(size=21; request=1; stream=2; streamflags=; type=command-response; flags=continuation)
received frame(size=0; request=1; stream=2; streamflags=; type=command-response; flags=eos)
query 1; heads
sending 2 commands
sending command heads: {}
sending command known: {
'nodes': []
}
received frame(size=11; request=1; stream=2; streamflags=stream-begin; type=command-response; flags=continuation)
received frame(size=43; request=1; stream=2; streamflags=; type=command-response; flags=continuation)
received frame(size=0; request=1; stream=2; streamflags=; type=command-response; flags=eos)
received frame(size=11; request=3; stream=2; streamflags=; type=command-response; flags=continuation)
received frame(size=1; request=3; stream=2; streamflags=; type=command-response; flags=continuation)
received frame(size=0; request=3; stream=2; streamflags=; type=command-response; flags=eos)
sending 1 commands
sending command changesetdata: {
'fields': set([
'parents',
'revision'
]),
'noderange': [
[],
[
'D2\xd86&\xe8\xa9\x86U\xf0b\xec\x1f*C\xb0\x7f\x7f\xbb\xb0'
]
]
}
received frame(size=11; request=1; stream=2; streamflags=stream-begin; type=command-response; flags=continuation)
received frame(size=327; request=1; stream=2; streamflags=; type=command-response; flags=continuation)
received frame(size=0; request=1; stream=2; streamflags=; type=command-response; flags=eos)
add changeset 3390ef850073
add changeset 4432d83626e8
updating the branch cache
new changesets 3390ef850073:4432d83626e8
$ cd client-singlehead
$ hg log -G -T '{rev} {node} {phase}\n'
o 1 4432d83626e8a98655f062ec1f2a43b07f7fbbb0 public
|
o 0 3390ef850073fbc2f0dfff2244342c8e9229013a public
Incremental pull works
$ hg --debug pull
pulling from http://localhost:$HGPORT/
using http://localhost:$HGPORT/
sending capabilities command
query 1; heads
sending 2 commands
sending command heads: {}
sending command known: {
'nodes': [
'D2\xd86&\xe8\xa9\x86U\xf0b\xec\x1f*C\xb0\x7f\x7f\xbb\xb0'
]
}
received frame(size=11; request=1; stream=2; streamflags=stream-begin; type=command-response; flags=continuation)
received frame(size=43; request=1; stream=2; streamflags=; type=command-response; flags=continuation)
received frame(size=0; request=1; stream=2; streamflags=; type=command-response; flags=eos)
received frame(size=11; request=3; stream=2; streamflags=; type=command-response; flags=continuation)
received frame(size=2; request=3; stream=2; streamflags=; type=command-response; flags=continuation)
received frame(size=0; request=3; stream=2; streamflags=; type=command-response; flags=eos)
searching for changes
all local heads known remotely
sending 1 commands
sending command changesetdata: {
'fields': set([
'parents',
'revision'
]),
'noderange': [
[
'D2\xd86&\xe8\xa9\x86U\xf0b\xec\x1f*C\xb0\x7f\x7f\xbb\xb0'
],
[
'\xca\xa2\xa4eE\x1d\xd1\xfa\xcd\xa0\xf5\xb1#\x12\xc3UXA\x88\xa1',
'\xcd%4vk\xec\xe18\xc7\xc1\xaf\xdch%0/\x0fb\xd8\x1f'
]
]
}
received frame(size=11; request=1; stream=2; streamflags=stream-begin; type=command-response; flags=continuation)
received frame(size=495; request=1; stream=2; streamflags=; type=command-response; flags=continuation)
received frame(size=0; request=1; stream=2; streamflags=; type=command-response; flags=eos)
add changeset cd2534766bec
add changeset e96ae20f4188
add changeset caa2a465451d
updating the branch cache
new changesets cd2534766bec:caa2a465451d
(run 'hg update' to get a working copy)
$ hg log -G -T '{rev} {node} {phase}\n'
o 4 caa2a465451dd1facda0f5b12312c355584188a1 public
|
o 3 e96ae20f4188487b9ae4ef3941c27c81143146e5 public
|
| o 2 cd2534766bece138c7c1afdc6825302f0f62d81f public
| |
| o 1 4432d83626e8a98655f062ec1f2a43b07f7fbbb0 public
|/
o 0 3390ef850073fbc2f0dfff2244342c8e9229013a public
$ cd ..