Martin von Zweigbergk <martinvonz@google.com> [Fri, 19 Apr 2019 10:32:32 -0700] rev 4593
evolve: use context manager for transactions
Martin von Zweigbergk <martinvonz@google.com> [Fri, 19 Apr 2019 10:52:16 -0700] rev 4592
evolve: use consistent message and just re-raise InterventionRequired
Martin von Zweigbergk <martinvonz@google.com> [Fri, 19 Apr 2019 10:47:12 -0700] rev 4591
evolve: use standard InterventionRequired instead of MergeFailure
Martin von Zweigbergk <martinvonz@google.com> [Fri, 19 Apr 2019 10:41:56 -0700] rev 4590
evolve: don't use exception for local flow control
The LocalMergeFailure class was added in 3f91654713dd (obsolete Move
merge failure handling into stabilize code, 2012-08-20). I think the
"if compat.hasconflict(r)" check was added later. Now that we have
that check, we should use that for flow control instead.
Note that this means that any unexpected exception from
_relocatecommit() will now just raise (and roll back the
transaction). I think that's an improvement.