view tests/test-issue522.t @ 33198:36b3febd739f

phabricator: add a contrib script

The default Phabricator client arcanist is not friendly to send a stack of
changesets. It works better when a feature branch is reviewed as a single
review unit. However, we want multiple revisions per feature branch.

To be able to have an `hg email`-like UX to send and receive a stack of
commits easily, it seems we have to re-invent things. This patch adds
`phabricator.py` speaking Conduit API [1] in `contrib` as the first step.
This may also be an option for people who don't want to run PHP.

Config could be done in `hgrc` (instead of `arcrc` or `arcconfig`):

    [phabricator]
    # API token. Get it from https://phab.mercurial-scm.org/conduit/login/
    token = cli-xxxxxxxxxxxxxxxxxxxxxxxxxxxx
    url = https://phab.mercurial-scm.org/
    # callsign is used by the next patch
    callsign = HG

This patch only adds a single command: `debugcallconduit` to keep the patch
size small. To test it, having the above config, and run:

    $ hg debugcallconduit diffusion.repository.search <<EOF
    > {"constraints": {"callsigns": ["HG"]}}
    > EOF

The result will be printed in prettified JSON format.

[1]: Conduit APIs are listed at https://phab.mercurial-scm.org/conduit/

https://bz.mercurial-scm.org/522

In the merge below, the file "foo" has the same contents in both
parents, but if we look at the file-level history, we'll notice that
the version in p1 is an ancestor of the version in p2. This test makes
sure that we'll use the version from p2 in the manifest of the merge
revision.

  $ hg init

  $ echo foo > foo
  $ hg ci -qAm 'add foo'

  $ echo bar >> foo
  $ hg ci -m 'change foo'

  $ hg backout -r tip -m 'backout changed foo'
  reverting foo
  changeset 2:4d9e78aaceee backs out changeset 1:b515023e500e

  $ hg up -C 0
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ touch bar
  $ hg ci -qAm 'add bar'

  $ hg merge --debug
    searching for copies back to rev 1
    unmatched files in local:
     bar
  resolving manifests
   branchmerge: True, force: False, partial: False
   ancestor: bbd179dfa0a7, local: 71766447bdbb+, remote: 4d9e78aaceee
   foo: remote is newer -> g
  getting foo
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)

  $ hg debugstate | grep foo
  m   0         -2 unset               foo

  $ hg st -A foo
  M foo

  $ hg ci -m 'merge'

  $ hg manifest --debug | grep foo
  c6fc755d7e68f49f880599da29f15add41f42f5a 644   foo

  $ hg debugindex foo
     rev    offset  length  ..... linkrev nodeid       p1           p2 (re)
       0         0       5  .....       0 2ed2a3912a0b 000000000000 000000000000 (re)
       1         5       9  .....       1 6f4310b00b9a 2ed2a3912a0b 000000000000 (re)
       2        14       5  .....       2 c6fc755d7e68 6f4310b00b9a 000000000000 (re)