Martin von Zweigbergk <martinvonz@google.com> [Fri, 19 Apr 2019 11:12:00 -0700] rev 4609
next: start transaction before calling _solveone()
All other callers do this, and I'm about to make _solveone() not
create a transaction.
Martin von Zweigbergk <martinvonz@google.com> [Fri, 19 Apr 2019 10:22:25 -0700] rev 4608
evolve: use single transaction also when continuing
Martin von Zweigbergk <martinvonz@google.com> [Fri, 19 Apr 2019 09:41:39 -0700] rev 4607
evolve: run in a single transaction
This speeds up `hg evolve --all` of a stack of 24 commits in the hg
repo from 11.5s to 3.7s (3x). As can be seen in the tests, it also
avoid some warnings about transiently unstable commits.
Martin von Zweigbergk <martinvonz@google.com> [Fri, 19 Apr 2019 10:01:32 -0700] rev 4606
evolve: extract function for solving one revision, including merges
Will make the next patch simpler.