Martin von Zweigbergk <martinvonz@google.com> [Mon, 09 Dec 2019 11:09:11 -0800] rev 5343
evolve: handle relocation during divergence resolution producing no changes
When resolving divergence and the two divergent commits have different
parents, we start by rebasing one of them to have the same parent as
the other. That step can result in no changes to commit. When it does,
we would crash with a TypeError before this patch.
This patch fixes it by instead creating an empty commit in that
scenario. The existing code then continues to attempt to merge it,
which produces no changes, and no commit is created on top. The other
side of the divergence is marked as successor as usual, so orphans
from the side that became empty will be evolved to the right place
(see test).
Martin von Zweigbergk <martinvonz@google.com> [Mon, 09 Dec 2019 10:05:24 -0800] rev 5342
tests: show crash from divergence resolution resulting in empty commit
When relocating a commit results in an empty commit (because the
changes are already in the destination), we get a TypeError from
evolve.
Martin von Zweigbergk <martinvonz@google.com> [Thu, 30 Apr 2020 10:05:14 -0700] rev 5341
evolve: always create commit when resolving divergence
When resolving content-divergence, the final commit we create may end
up empty (which means that Mercurial won't even create it). We've had
code for handling that in evolve ever since 41bf6c27a122 (evolve:
stabilize now handle conflicting changeset, 2012-08-23). However, that
resolved the issue by marking on the divergent commits as
successor. As Pierre-Yves has pointed out (in other code reviews), we
should instead be creating a new successor. So that's what this patch
does. It does that by setting `ui.allowemptycommit` while creating the
final commit. However, that is not enough, because we may end up
creating the same nodeid as already existed (we'd then end up trying
to mark the "new" commit a successor of itself). To solve that, we add
some salt to the commit extras. That salt affects lots of tests.
Anton Shestakov <av6@dwimlabs.net> [Tue, 05 May 2020 16:29:52 +0800] rev 5340
tests: replace an X+X revset with something meaningful
The change in aab2afc2bd82 seem to have been make too hastily.