view tests/test-push-cgi.t @ 36534:5faeabb07cf5

debugcommands: support for triggering push protocol

The mechanism for pushing to a remote is a bit more complicated
than other commands. On SSH, we wait for a positive reply from
the server before we start sending the bundle payload.

This commit adds a mechanism to the "command" action in
`hg debugwireproto` to trigger the "push protocol" and to
specify a file whose contents should be submitted as the command
payload.

With this new feature, we implement a handful of tests for the
"unbundle" command. We try to cover various server failures and
hook/output scenarios so protocol behavior is as comprehensively
tested as possible. Even with so much test output, we only cover
bundle1 with Python hooks. There's still a lot of test coverage
that needs to be implemented. But this is certainly a good start.

Because there are so many new tests, we split these tests into their
own test file.

In order to make output deterministic, we need to disable the
doublepipe primitive. We add an option to `hg debugwireproto`
to do that. Because something in the bowels of the peer does a
read of stderr, we still capture read I/O from stderr. So there
is test coverage of what the server emits.

The tests around I/O capture some wonkiness. For example,
interleaved ui.write() and ui.write_err() calls are emitted in
order. However, (presumably due to buffering), print() to
sys.stdout and sys.stderr aren't in order.

We currently only test bundle1 because bundle2 is substantially
harder to test because it is more complicated (the server responds
with a stream containing a bundle2 instead of a frame).

Differential Revision: https://phab.mercurial-scm.org/D2471

#require no-msys # MSYS will translate web paths as if they were file paths

This is a test of the push wire protocol over CGI-based hgweb.

initialize repository

  $ hg init r
  $ cd r
  $ echo a > a
  $ hg ci -A -m "0"
  adding a
  $ echo '[web]' > .hg/hgrc
  $ echo 'allow_push = *' >> .hg/hgrc
  $ echo 'push_ssl = false' >> .hg/hgrc

create hgweb invocation script

  $ cat >hgweb.cgi <<HGWEB
  > import cgitb
  > cgitb.enable()
  > from mercurial import demandimport; demandimport.enable()
  > from mercurial.hgweb import hgweb
  > from mercurial.hgweb import wsgicgi
  > application = hgweb('.', 'test repository')
  > wsgicgi.launch(application)
  > HGWEB
  $ chmod 755 hgweb.cgi

test preparation

  $ . "$TESTDIR/cgienv"
  $ REQUEST_METHOD="POST"; export REQUEST_METHOD
  $ CONTENT_TYPE="application/octet-stream"; export CONTENT_TYPE
  $ hg bundle --type v1 --all bundle.hg
  1 changesets found
  $ CONTENT_LENGTH=279; export CONTENT_LENGTH;

expect failure because heads doesn't match (formerly known as 'unsynced changes')

  $ QUERY_STRING="cmd=unbundle&heads=0000000000000000000000000000000000000000"; export QUERY_STRING
  $ $PYTHON hgweb.cgi <bundle.hg >page1 2>&1
  $ cat page1
  Status: 200 Script output follows\r (esc)
  Content-Type: application/mercurial-0.1\r (esc)
  Content-Length: 64\r (esc)
  \r (esc)
  0
  repository changed while preparing changes - please try again

successful force push

  $ QUERY_STRING="cmd=unbundle&heads=666f726365"; export QUERY_STRING
  $ $PYTHON hgweb.cgi <bundle.hg >page2 2>&1
  $ cat page2
  Status: 200 Script output follows\r (esc)
  Content-Type: application/mercurial-0.1\r (esc)
  Content-Length: 102\r (esc)
  \r (esc)
  1
  adding changesets
  adding manifests
  adding file changes
  added 0 changesets with 0 changes to 1 files

successful push, list of heads

  $ QUERY_STRING="cmd=unbundle&heads=f7b1eb17ad24730a1651fccd46c43826d1bbc2ac"; export QUERY_STRING
  $ $PYTHON hgweb.cgi <bundle.hg >page3 2>&1
  $ cat page3
  Status: 200 Script output follows\r (esc)
  Content-Type: application/mercurial-0.1\r (esc)
  Content-Length: 102\r (esc)
  \r (esc)
  1
  adding changesets
  adding manifests
  adding file changes
  added 0 changesets with 0 changes to 1 files

successful push, SHA1 hash of heads (unbundlehash capability)

  $ QUERY_STRING="cmd=unbundle&heads=686173686564 5a785a5f9e0d433b88ed862b206b011b0c3a9d13"; export QUERY_STRING
  $ $PYTHON hgweb.cgi <bundle.hg >page4 2>&1
  $ cat page4
  Status: 200 Script output follows\r (esc)
  Content-Type: application/mercurial-0.1\r (esc)
  Content-Length: 102\r (esc)
  \r (esc)
  1
  adding changesets
  adding manifests
  adding file changes
  added 0 changesets with 0 changes to 1 files

  $ cd ..