comparison tests/test-patchbomb.t @ 29593:953839de96ab

bundle2: store changeset count when creating file bundles

The bundle2 changegroup part has an advisory param saying how many
changesets are in the part. Before this patch, we were setting
this part when generating bundle2 parts via the wire protocol but
not when generating local bundle2 files.

A side effect of not setting the changeset count part is that progress
bars don't work when applying changesets. As the tests show, this
impacted clone bundles, shelve, backup bundles, `hg unbundle`, and
anything touching bundle2 files.

This patch adds a backdoor to allow us to pass state from
changegroup generation into the unbundler. We store the number
of changesets in the changegroup in this state and use it to
populate the aforementioned advisory part parameter when generating
the bundle2 bundle.

I concede that I'm not thrilled by how state is being passed in
changegroup.py (it feels a bit hacky). I would love to overhaul the
rather confusing set of functions in changegroup.py with something that
passes rich objects around instead of e.g. low-level generators.
However, given the code freeze for 3.9 is imminent, I'd rather not
undertake this endeavor right now. This feels like the easiest way
to get the parameter added to the changegroup part.

29592:37cccad55410

  Content-Type: application/x-mercurial-bundle
  MIME-Version: 1.0
  Content-Disposition: attachment; filename="bundle.hg"
  Content-Transfer-Encoding: base64
  
  SEcyMAAAAA5Db21wcmVzc2lvbj1CWkJaaDkxQVkmU1lCZFwPAAAKf//7nFYSWD1/4H7R09C/I70I
  Ak0E4peoSIYIgQCgGUQOcLABGY2hqoAAAaBMTTAAAahgTCZoAAAAAMQaqn5GmapojQ00DEGI/VGJ
  kDAJoGTDUAAyM0QaAEqalPTUaMhoyDIDR6IxAGEGmgAehMRhDRsoyB6TYTC8JyLN+jTGqitRAgRJ
  b3SRlhd8/+VxlAUqAilLoKPEEyxFQkaEGo+DzItFeNiFAo8NMMweVtvXJFIMhjoKC18DeYwjLKBz
  wrMcs86qJrctDNJorwBMuLcqvTVWHh1IlsIaaaYSUIP2IZsogT1+pSSZS+bSTJrgfKsO9go/f0HF
  uW4Yr2vXpxDreOgSIAdK/xC8Yay48SLpxIuqc/BZ6rVZCgG21rr0zhCaEgXOTqNaYEvANvg0B0Qo
  dgtqAs1FDcZgzYitwJh6ZAG0C4mA7FPrp9b7h0h/A44Xgd+0it1gvF0mFE/CCPwymXS+OisOOCAF
  mDUDAC1pBvsXckU4UJBCZFwP
  --===============*==-- (glob)

with a specific bundle type
(binary part must be different)

29593:953839de96ab

  Content-Type: application/x-mercurial-bundle
  MIME-Version: 1.0
  Content-Disposition: attachment; filename="bundle.hg"
  Content-Transfer-Encoding: base64
  
  SEcyMAAAAA5Db21wcmVzc2lvbj1CWkJaaDkxQVkmU1kIqE7KAAAKf//7vFYQWD1/4H7R09C/470I
  Ak0E4peoSIYIgQCgGUQOcLABGY2hqoTTCYaBqaYAAACaaMAATIwAA1MIYDaQaqn6p+jRop+oJkA2
  oNqD1PU0PUBoxqaMmjMUepoBoDT1GmQNBKmlTT1GTCNMEAYTQ0NNDI0BoMQHpAZAA8o2pkyNJHfX
  RRbXoyxKRUlAg41B3lpmMOnr77dEpFKAvEUGEkWuC4wioiMjC2Y2a84EXhsNCFIrbXUGId07PJnS
  ELAOIpL/gE8R8CUeXuw2NKMtkFoLPkcTSomXtgHSg1IKaCNlWwVU3CpmMYqh5gkFYJKOD4UhVVQ6
  SiF1DpE8ghWvF1ih+fYgagfYHI96w/QsrRATpYiP7VRbINFrQy2c21mZ7M4pXXrPBypoXAIhtum7
  aKDJCpUqMDF5dfiDChMfgH9nQ4B60Uvgb4AK9dsbSYc+O3tEyNq9g9gZeA5Je2T82GzjC4DbY4F2
  0kdrTBwslErFshCgDzeEBwICg13oQaQawQA1WWd3F3JFOFCQCKhOyg==
  --===============*==-- (glob)

with a specific bundle type
(binary part must be different)