view tests/test-wireproto-exchangev2.t @ 39633:ff2de4f2eb3c

exchangev2: fetch and apply phases data

Now that the server supports emitting phases data, we can request it
and apply it on the client.

Because we may receive phases-only updates from the server, we no
longer conditionally perform the "changesetdata" command depending
on whether there are revisions to fetch. In the previous wire
protocol, this case would result in us falling back to performing
"listkeys" commands to look up phases, bookmarks, etc data. But
since "changesetdata" is smart enough to handle metadata only
fetches, we can keep things consistent.

It's worth noting that because of the unified approach to changeset
data retrieval, phase handling code in wire proto v2 exchange is
drastically simpler. Contrast with all the code in exchange.py
dealing with all the variations for obtaining phases data.

Differential Revision: https://phab.mercurial-scm.org/D4484

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',
      'phase',
      '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=871; 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 (3 drafts)

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 draft
  |
  o  3 e96ae20f4188487b9ae4ef3941c27c81143146e5 draft
  |
  | o  2 cd2534766bece138c7c1afdc6825302f0f62d81f draft
  | |
  | 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',
      'phase',
      '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=353; 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',
      'phase',
      '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=571; 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 (3 drafts)
  (run 'hg update' to get a working copy)

  $ hg log -G -T '{rev} {node} {phase}\n'
  o  4 caa2a465451dd1facda0f5b12312c355584188a1 draft
  |
  o  3 e96ae20f4188487b9ae4ef3941c27c81143146e5 draft
  |
  | o  2 cd2534766bece138c7c1afdc6825302f0f62d81f draft
  | |
  | o  1 4432d83626e8a98655f062ec1f2a43b07f7fbbb0 public
  |/
  o  0 3390ef850073fbc2f0dfff2244342c8e9229013a public
  

Phase-only update works

  $ hg -R ../server-simple phase --public -r caa2a465451dd
  $ 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': [
      '\xcd%4vk\xec\xe18\xc7\xc1\xaf\xdch%0/\x0fb\xd8\x1f',
      '\xca\xa2\xa4eE\x1d\xd1\xfa\xcd\xa0\xf5\xb1#\x12\xc3UXA\x88\xa1'
    ]
  }
  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=3; 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 remote heads known locally
  sending 1 commands
  sending command changesetdata: {
    'fields': set([
      'parents',
      'phase',
      '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'
      ],
      [
        '\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=92; request=1; stream=2; streamflags=; type=command-response; flags=continuation)
  received frame(size=0; request=1; stream=2; streamflags=; type=command-response; flags=eos)
  2 local changesets published
  (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 draft
  | |
  | o  1 4432d83626e8a98655f062ec1f2a43b07f7fbbb0 public
  |/
  o  0 3390ef850073fbc2f0dfff2244342c8e9229013a public
  

  $ cd ..