tests/test-ssh-proto.t
author Pierre-Yves David <pierre-yves.david@octobus.net>
Mon, 14 Dec 2020 11:32:24 +0100
changeset 46149 294d5aca4ff5
parent 45921 95c4cca641f6
child 46672 7015b0232c5e
permissions -rw-r--r--
copies: iterate over children directly (instead of parents) Before this change we would gather all parent → child edges and iterate on all parent, gathering copy information for children and aggregating them from there. They are not strict requirement for edges to be processed in that specific order. We could also simply iterate over all "children" revision and aggregate data from both parents at the same time. This patch does that. It make various things simpler: * since both parents are processed at the same time, we no longer need to cache data for merge (see next changeset for details), * we no longer need nested loop to process data, * we no longer need to store partial merge data for a rev from distinct loop interaction to another when processing merges, * we no longer need to build a full parent -> children mapping (we only rely on a simpler "parent -> number of children" map (for memory efficiency), * the data access pattern is now simpler (from lower revisions to higher revisions) and entirely predicable. That predictability open the way to prefetching and parallel processing. So that new iterations order requires simpler code and open the way to interesting optimisation. The effect on performance is quite good. In the worse case, we don't see any significant negative impact. And in the best case, the reduction of roundtrip to Python provide us with a significant speed. Some example below: Repo Case Source-Rev Dest-Rev # of revisions old time new time Difference Factor time per rev --------------------------------------------------------------------------------------------------------------------------------------------------------------- mozilla-try x00000_revs_x00000_added_0_copies dc8a3ca7010e d16fde900c9c : 34414 revs, 0.962867 s, 0.502584 s, -0.460283 s, × 0.5220, 14 µs/rev mozilla-try x0000_revs_xx000_added_x_copies 156f6e2674f2 4d0f2c178e66 : 8598 revs, 0.110717 s, 0.076323 s, -0.034394 s, × 0.6894, 8 µs/rev # full comparison between the previous changeset and this one Repo Case Source-Rev Dest-Rev # of revisions old time new time Difference Factor time per rev --------------------------------------------------------------------------------------------------------------------------------------------------------------- mercurial x_revs_x_added_0_copies ad6b123de1c7 39cfcef4f463 : 1 revs, 0.000048 s, 0.000041 s, -0.000007 s, × 0.8542, 41 µs/rev mercurial x_revs_x_added_x_copies 2b1c78674230 0c1d10351869 : 6 revs, 0.000153 s, 0.000102 s, -0.000051 s, × 0.6667, 17 µs/rev mercurial x000_revs_x000_added_x_copies 81f8ff2a9bf2 dd3267698d84 : 1032 revs, 0.004209 s, 0.004254 s, +0.000045 s, × 1.0107, 4 µs/rev pypy x_revs_x_added_0_copies aed021ee8ae8 099ed31b181b : 9 revs, 0.000203 s, 0.000282 s, +0.000079 s, × 1.3892, 31 µs/rev pypy x_revs_x000_added_0_copies 4aa4e1f8e19a 359343b9ac0e : 1 revs, 0.000059 s, 0.000048 s, -0.000011 s, × 0.8136, 48 µs/rev pypy x_revs_x_added_x_copies ac52eb7bbbb0 72e022663155 : 7 revs, 0.000194 s, 0.000211 s, +0.000017 s, × 1.0876, 30 µs/rev pypy x_revs_x00_added_x_copies c3b14617fbd7 ace7255d9a26 : 1 revs, 0.000380 s, 0.000375 s, -0.000005 s, × 0.9868, 375 µs/rev pypy x_revs_x000_added_x000_copies df6f7a526b60 a83dc6a2d56f : 6 revs, 0.010588 s, 0.010574 s, -0.000014 s, × 0.9987, 1762 µs/rev pypy x000_revs_xx00_added_0_copies 89a76aede314 2f22446ff07e : 4785 revs, 0.048961 s, 0.049974 s, +0.001013 s, × 1.0207, 10 µs/rev pypy x000_revs_x000_added_x_copies 8a3b5bfd266e 2c68e87c3efe : 6780 revs, 0.083612 s, 0.084300 s, +0.000688 s, × 1.0082, 12 µs/rev pypy x000_revs_x000_added_x000_copies 89a76aede314 7b3dda341c84 : 5441 revs, 0.058579 s, 0.060128 s, +0.001549 s, × 1.0264, 11 µs/rev pypy x0000_revs_x_added_0_copies d1defd0dc478 c9cb1334cc78 : 43645 revs, 0.736783 s, 0.686542 s, -0.050241 s, × 0.9318, 15 µs/rev pypy x0000_revs_xx000_added_0_copies bf2c629d0071 4ffed77c095c : 2 revs, 0.022050 s, 0.009277 s, -0.012773 s, × 0.4207, 4638 µs/rev pypy x0000_revs_xx000_added_x000_copies 08ea3258278e d9fa043f30c0 : 11316 revs, 0.120800 s, 0.114733 s, -0.006067 s, × 0.9498, 10 µs/rev netbeans x_revs_x_added_0_copies fb0955ffcbcd a01e9239f9e7 : 2 revs, 0.000140 s, 0.000081 s, -0.000059 s, × 0.5786, 40 µs/rev netbeans x_revs_x000_added_0_copies 6f360122949f 20eb231cc7d0 : 2 revs, 0.000114 s, 0.000107 s, -0.000007 s, × 0.9386, 53 µs/rev netbeans x_revs_x_added_x_copies 1ada3faf6fb6 5a39d12eecf4 : 3 revs, 0.000224 s, 0.000173 s, -0.000051 s, × 0.7723, 57 µs/rev netbeans x_revs_x00_added_x_copies 35be93ba1e2c 9eec5e90c05f : 9 revs, 0.000723 s, 0.000698 s, -0.000025 s, × 0.9654, 77 µs/rev netbeans x000_revs_xx00_added_0_copies eac3045b4fdd 51d4ae7f1290 : 1421 revs, 0.009665 s, 0.009248 s, -0.000417 s, × 0.9569, 6 µs/rev netbeans x000_revs_x000_added_x_copies e2063d266acd 6081d72689dc : 1533 revs, 0.014820 s, 0.015446 s, +0.000626 s, × 1.0422, 10 µs/rev netbeans x000_revs_x000_added_x000_copies ff453e9fee32 411350406ec2 : 5750 revs, 0.076049 s, 0.074373 s, -0.001676 s, × 0.9780, 12 µs/rev netbeans x0000_revs_xx000_added_x000_copies 588c2d1ced70 1aad62e59ddd : 66949 revs, 0.683603 s, 0.639870 s, -0.043733 s, × 0.9360, 9 µs/rev mozilla-central x_revs_x_added_0_copies 3697f962bb7b 7015fcdd43a2 : 2 revs, 0.000161 s, 0.000088 s, -0.000073 s, × 0.5466, 44 µs/rev mozilla-central x_revs_x000_added_0_copies dd390860c6c9 40d0c5bed75d : 8 revs, 0.000234 s, 0.000199 s, -0.000035 s, × 0.8504, 24 µs/rev mozilla-central x_revs_x_added_x_copies 8d198483ae3b 14207ffc2b2f : 9 revs, 0.000247 s, 0.000171 s, -0.000076 s, × 0.6923, 19 µs/rev mozilla-central x_revs_x00_added_x_copies 98cbc58cc6bc 446a150332c3 : 7 revs, 0.000630 s, 0.000592 s, -0.000038 s, × 0.9397, 84 µs/rev mozilla-central x_revs_x000_added_x000_copies 3c684b4b8f68 0a5e72d1b479 : 3 revs, 0.003286 s, 0.003151 s, -0.000135 s, × 0.9589, 1050 µs/rev mozilla-central x_revs_x0000_added_x0000_copies effb563bb7e5 c07a39dc4e80 : 6 revs, 0.062441 s, 0.061612 s, -0.000829 s, × 0.9867, 10268 µs/rev mozilla-central x000_revs_xx00_added_0_copies 6100d773079a 04a55431795e : 1593 revs, 0.005423 s, 0.005381 s, -0.000042 s, × 0.9923, 3 µs/rev mozilla-central x000_revs_x000_added_x_copies 9f17a6fc04f9 2d37b966abed : 41 revs, 0.005919 s, 0.003742 s, -0.002177 s, × 0.6322, 91 µs/rev mozilla-central x000_revs_x000_added_x000_copies 7c97034feb78 4407bd0c6330 : 7839 revs, 0.062597 s, 0.061983 s, -0.000614 s, × 0.9902, 7 µs/rev mozilla-central x0000_revs_xx000_added_0_copies 9eec5917337d 67118cc6dcad : 615 revs, 0.043551 s, 0.019861 s, -0.023690 s, × 0.4560, 32 µs/rev mozilla-central x0000_revs_xx000_added_x000_copies f78c615a656c 96a38b690156 : 30263 revs, 0.192475 s, 0.188101 s, -0.004374 s, × 0.9773, 6 µs/rev mozilla-central x00000_revs_x0000_added_x0000_copies 6832ae71433c 4c222a1d9a00 : 153721 revs, 1.955575 s, 1.806696 s, -0.148879 s, × 0.9239, 11 µs/rev mozilla-central x00000_revs_x00000_added_x000_copies 76caed42cf7c 1daa622bbe42 : 204976 revs, 2.886501 s, 2.682987 s, -0.203514 s, × 0.9295, 13 µs/rev mozilla-try x_revs_x_added_0_copies aaf6dde0deb8 9790f499805a : 2 revs, 0.001181 s, 0.000852 s, -0.000329 s, × 0.7214, 426 µs/rev mozilla-try x_revs_x000_added_0_copies d8d0222927b4 5bb8ce8c7450 : 2 revs, 0.001189 s, 0.000859 s, -0.000330 s, × 0.7225, 429 µs/rev mozilla-try x_revs_x_added_x_copies 092fcca11bdb 936255a0384a : 4 revs, 0.000563 s, 0.000150 s, -0.000413 s, × 0.2664, 37 µs/rev mozilla-try x_revs_x00_added_x_copies b53d2fadbdb5 017afae788ec : 2 revs, 0.001548 s, 0.001158 s, -0.000390 s, × 0.7481, 579 µs/rev mozilla-try x_revs_x000_added_x000_copies 20408ad61ce5 6f0ee96e21ad : 1 revs, 0.027782 s, 0.027240 s, -0.000542 s, × 0.9805, 27240 µs/rev mozilla-try x_revs_x0000_added_x0000_copies effb563bb7e5 c07a39dc4e80 : 6 revs, 0.062781 s, 0.062824 s, +0.000043 s, × 1.0007, 10470 µs/rev mozilla-try x000_revs_xx00_added_0_copies 6100d773079a 04a55431795e : 1593 revs, 0.005778 s, 0.005463 s, -0.000315 s, × 0.9455, 3 µs/rev mozilla-try x000_revs_x000_added_x_copies 9f17a6fc04f9 2d37b966abed : 41 revs, 0.006192 s, 0.004238 s, -0.001954 s, × 0.6844, 103 µs/rev mozilla-try x000_revs_x000_added_x000_copies 1346fd0130e4 4c65cbdabc1f : 6657 revs, 0.065391 s, 0.064113 s, -0.001278 s, × 0.9805, 9 µs/rev mozilla-try x0000_revs_x_added_0_copies 63519bfd42ee a36a2a865d92 : 40314 revs, 0.317216 s, 0.294063 s, -0.023153 s, × 0.9270, 7 µs/rev mozilla-try x0000_revs_x_added_x_copies 9fe69ff0762d bcabf2a78927 : 38690 revs, 0.303119 s, 0.281493 s, -0.021626 s, × 0.9287, 7 µs/rev mozilla-try x0000_revs_xx000_added_x_copies 156f6e2674f2 4d0f2c178e66 : 8598 revs, 0.110717 s, 0.076323 s, -0.034394 s, × 0.6894, 8 µs/rev mozilla-try x0000_revs_xx000_added_0_copies 9eec5917337d 67118cc6dcad : 615 revs, 0.045739 s, 0.020390 s, -0.025349 s, × 0.4458, 33 µs/rev mozilla-try x0000_revs_xx000_added_x000_copies 89294cd501d9 7ccb2fc7ccb5 : 97052 revs, 3.098021 s, 3.023879 s, -0.074142 s, × 0.9761, 31 µs/rev mozilla-try x0000_revs_x0000_added_x0000_copies e928c65095ed e951f4ad123a : 52031 revs, 0.771480 s, 0.735549 s, -0.035931 s, × 0.9534, 14 µs/rev mozilla-try x00000_revs_x_added_0_copies 6a320851d377 1ebb79acd503 : 363753 revs, 18.813422 s, 18.568900 s, -0.244522 s, × 0.9870, 51 µs/rev mozilla-try x00000_revs_x00000_added_0_copies dc8a3ca7010e d16fde900c9c : 34414 revs, 0.962867 s, 0.502584 s, -0.460283 s, × 0.5220, 14 µs/rev mozilla-try x00000_revs_x_added_x_copies 5173c4b6f97c 95d83ee7242d : 362229 revs, 18.684923 s, 18.356645 s, -0.328278 s, × 0.9824, 50 µs/rev mozilla-try x00000_revs_x000_added_x_copies 9126823d0e9c ca82787bb23c : 359344 revs, 18.296305 s, 18.250393 s, -0.045912 s, × 0.9975, 50 µs/rev mozilla-try x00000_revs_x0000_added_x0000_copies 8d3fafa80d4b eb884023b810 : 192665 revs, 3.061887 s, 2.792459 s, -0.269428 s, × 0.9120, 14 µs/rev mozilla-try x00000_revs_x00000_added_x0000_copies 1b661134e2ca 1ae03d022d6d : 228985 revs, 103.869641 s, 107.697264 s, +3.827623 s, × 1.0369, 470 µs/rev mozilla-try x00000_revs_x00000_added_x000_copies 9b2a99adc05e 8e29777b48e6 : 382065 revs, 64.262957 s, 63.961040 s, -0.301917 s, × 0.9953, 167 µs/rev Differential Revision: https://phab.mercurial-scm.org/D9422

#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: 463
  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>     463\n
  o> readline() -> 463:
  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
  463
  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>     463\n
  o> write(463) -> 463:
  o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
  463
  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
  463
  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>     463\n
  o> write(463) -> 463:
  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>     463\n
  o> readline() -> 463:
  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: 463
  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>     463\n
  o> readline() -> 463:
  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>     463\n
  i> write(98) -> 98:
  i>     between\n
  i>     pairs 81\n
  i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
  o> readline() -> 463:
  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: 463
  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>     463\n
  o> readline() -> 463:
  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: 463
  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>     463\n
  o> readline() -> 463:
  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>     463\n
  o> readline() -> 463:
  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>     463\n
  o> readline() -> 463:
  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>     463\n
  o> readline() -> 463:
  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>     463\n
  o> readline() -> 463:
  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>     463\n
  o> readline() -> 463:
  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>     463\n
  o> readline() -> 463:
  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>     463\n
  o> readline() -> 463:
  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>     463\n
  o> readline() -> 463:
  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>     463\n
  o> readline() -> 463:
  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>     463\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>     463\n
  o> readline() -> 463:
  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: 463
  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>     462\n
  o> readline() -> 463:
  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
    checkheads
      related
    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>     462\n
  o> readline() -> 463:
  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>     447\n
  o> readline() -> 447:
  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>     462\n
  o> readline() -> 463:
  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>     463\n
  o> readline() -> 463:
  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>     463\n
  o> readline() -> 463:
  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>     462\n
  o> read(462) -> 462: 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>     463\n
  o> readline() -> 463:
  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>     462\n
  o> read(462) -> 462: 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>     463\n
  o> readline() -> 463:
  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>     462\n
  o> read(462) -> 462: 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>     463\n
  o> readline() -> 463:
  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>     462\n
  o> read(462) -> 462: 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>     463\n
  o> readline() -> 463:
  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>     462\n
  o> read(462) -> 462: 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>     463\n
  o> readline() -> 463:
  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>     462\n
  o> read(462) -> 462: 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>     463\n
  o> readline() -> 463:
  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>     462\n
  o> read(462) -> 462: 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>     463\n
  o> readline() -> 463:
  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>     462\n
  o> read(462) -> 462: 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>     463\n
  o> readline() -> 463:
  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>     462\n
  o> read(462) -> 462: 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>     463\n
  o> readline() -> 463:
  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>     462\n
  o> read(462) -> 462: 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>     463\n
  o> readline() -> 463:
  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>     462\n
  o> read(462) -> 462: 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