view tests/test-evolve-content-divergent-case-A1.t @ 6655:81fe0a498447 stable

topic: internal config option to fix hg pick behavior (issue6406)

After some consideration, hg pick was made to always use current topic (and
topic namespace), even if it's not set, in which case the resulting changeset
will not have any topic.

Previously the intended behavior was to only update topic if there was an
active topic, and not touch commit extras at all otherwise. That wasn't ideal,
since pick doesn't change active topic, and amending the just-picked commit
would unset its topic without clear user's intent to do so and to their
surprise.

===============================================
Testing content-divergence resolution: Case A.1
===============================================

Independent rewrites of same changeset can lead to content-divergence. In most
common cases, it can occur when multiple users rewrite the same changeset
independently and push it.

This test belongs to a series of tests checking the resolution of content-divergent
changesets.

Category A: no parents are obsolete
Testcase 1: no conflict: independent metadata changes only

A.1 No content changes on any side
==================================

.. (Divergence reason):
..    local: changed the description of changeset
..    other: changed the date of changeset
.. Where we show that since there is no content change in divergent changesets
.. we should only merge the metadata of changesets in a 3-way merge
..
.. (local):
..
..   A ø⇠○ A'
..     |/
..     ● O
..
.. (other):
..
..   A ø⇠○ A''
..     |/
..     ● O
..
.. (Resolution):
..
..     ○ A'''
..     |
..     ● O
..

Setup
-----
  $ . $TESTDIR/testlib/content-divergence-util.sh
  $ setuprepos A.1
  creating test repo for test case A.1
  - upstream
  - local
  - other
  cd into `local` and proceed with env setup

initial

  $ cd local
  $ mkcommit A0
  $ hg push -q
  $ hg amend -m "A1"
  $ hg log -G --hidden
  @  2:0d8c87cec5fc (draft): A1
  |
  | x  1:28b51eb45704 (draft): A0
  |/
  o  0:a9bdc8b26820 (public): O
  
  $ cd ../other
  $ hg pull -uq
  $ hg amend -d '0 1'
  $ hg push -q

  $ cd ../local
  $ hg pull -q
  2 new content-divergent changesets

Actual test of resolution
-------------------------
  $ hg evolve -l
  0d8c87cec5fc: A1
    content-divergent: ece7459c388a (draft) (precursor 28b51eb45704)
  
  ece7459c388a: A0
    content-divergent: 0d8c87cec5fc (draft) (precursor 28b51eb45704)
  
  $ hg log -G --hidden
  *  3:ece7459c388a (draft): A0 [content-divergent]
  |
  | @  2:0d8c87cec5fc (draft): A1 [content-divergent]
  |/
  | x  1:28b51eb45704 (draft): A0
  |/
  o  0:a9bdc8b26820 (public): O
  

  $ hg evolve --content-divergent
  merge:[2] A1
  with: [3] A0
  base: [1] A0
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  working directory is now at 36c6c1f70ad9

  $ hg log -G
  @  4:36c6c1f70ad9 (draft): A1
  |
  o  0:a9bdc8b26820 (public): O
  
  $ hg evolve -l