view tests/test-bundle2-pushback.t @ 42194:0da689a60163

fix: allow fixer tools to return metadata in addition to the file content

With this change, fixer tools can be configured to output a JSON object that
will be parsed and passed to hooks that can be used to print summaries of what
code was formatted or perform other post-fixing work.

The motivation for this change is to allow parallel executions of a
"meta-formatter" tool to report back statistics, which are then aggregated and
processed after all formatting has completed. Providing an extensible mechanism
inside fix.py is far simpler, and more portable, than trying to make a tool
like this communicate through some other channel.

Differential Revision: https://phab.mercurial-scm.org/D6167

#testcases sshv1 sshv2

#if sshv2
  $ cat >> $HGRCPATH << EOF
  > [experimental]
  > sshpeer.advertise-v2 = true
  > sshserver.support-v2 = true
  > EOF
#endif

  $ cat > bundle2.py << EOF
  > """A small extension to test bundle2 pushback parts.
  > Current bundle2 implementation doesn't provide a way to generate those
  > parts, so they must be created by extensions.
  > """
  > from __future__ import absolute_import
  > from mercurial import bundle2, exchange, pushkey, util
  > def _newhandlechangegroup(op, inpart):
  >     """This function wraps the changegroup part handler for getbundle.
  >     It issues an additional pushkey part to send a new
  >     bookmark back to the client"""
  >     result = bundle2.handlechangegroup(op, inpart)
  >     if b'pushback' in op.reply.capabilities:
  >         params = {b'namespace': b'bookmarks',
  >                   b'key': b'new-server-mark',
  >                   b'old': b'',
  >                   b'new': b'tip'}
  >         encodedparams = [(k, pushkey.encode(v))
  >                           for (k, v) in params.items()]
  >         op.reply.newpart(b'pushkey', mandatoryparams=encodedparams)
  >     else:
  >         op.reply.newpart(b'output', data=b'pushback not enabled')
  >     return result
  > _newhandlechangegroup.params = bundle2.handlechangegroup.params
  > bundle2.parthandlermapping[b'changegroup'] = _newhandlechangegroup
  > EOF

  $ cat >> $HGRCPATH <<EOF
  > [ui]
  > ssh = "$PYTHON" "$TESTDIR/dummyssh"
  > username = nobody <[e-mail]>
  > 
  > [alias]
  > tglog = log -G -T "{desc} [{phase}:{node|short}]"
  > EOF

Set up server repository

  $ hg init server
  $ cd server
  $ echo c0 > f0
  $ hg commit -Am 0
  adding f0

Set up client repository

  $ cd ..
  $ hg clone ssh://user@dummy/server client -q
  $ cd client

Enable extension
  $ cat >> $HGRCPATH <<EOF
  > [extensions]
  > bundle2=$TESTTMP/bundle2.py
  > EOF

Without config

  $ cd ../client
  $ echo c1 > f1
  $ hg commit -Am 1
  adding f1
  $ hg push
  pushing to ssh://user@dummy/server
  searching for changes
  remote: adding changesets
  remote: adding manifests
  remote: adding file changes
  remote: added 1 changesets with 1 changes to 1 files
  remote: pushback not enabled
  $ hg bookmark
  no bookmarks set

  $ cd ../server
  $ hg tglog
  o  1 [public:2b9c7234e035]
  |
  @  0 [public:6cee5c8f3e5b]
  



With config

  $ cd ../client
  $ echo '[experimental]' >> .hg/hgrc
  $ echo 'bundle2.pushback = True' >> .hg/hgrc
  $ echo c2 > f2
  $ hg commit -Am 2
  adding f2
  $ hg push
  pushing to ssh://user@dummy/server
  searching for changes
  remote: adding changesets
  remote: adding manifests
  remote: adding file changes
  remote: added 1 changesets with 1 changes to 1 files
  $ hg bookmark
     new-server-mark           2:0a76dfb2e179

  $ cd ../server
  $ hg tglog
  o  2 [public:0a76dfb2e179]
  |
  o  1 [public:2b9c7234e035]
  |
  @  0 [public:6cee5c8f3e5b]