topic: add tests to demonstrate topic confuses the branchhead checking logic While topics are in play, we store the branchheads (which has a topic) in "branchname:topicname" format. After digging into it I found that even in the case when we should have branch heads for "bname:tname" we get heads for "bname". The tests output reflect the confusion in branch head checking logic. Next patch will be fixing the problem.

evolve: fix the inconsistent behaviour of prune (issue6137) Let's not update to any revision when working directory parent is not related to the revision being pruned. Changes in test file demonstrate the fixed behaviour.

prune: add tests to demonstrate issue6137 Here we can see that prune updates off to the parent revision even when the pruned revision wasn't related with the working directory parent. A follow-up patch will fix this.

compat: fix `setupevolveunfinished` for upstream

prune: update to the successor of wdir also with --pair/--biject (issue6142) When prune is used with --pair flag, we can also update to the successor of working directory parent. No need to check len(sucs) or len(precs) here because there's a check for that earlier in the code (it's a requirement of biject). The tests are now demonstrate the correct behavior: when rev 14 was pruned with 12 as its successor, the bookmark that was on 14 was moved to 12. That bookmark was also activated (even before this patch).

tests: demonstrate prune --pair not moving bookmark correctly After `mkcommit n2` line the bookmark is on the correct changeset, but when we prune --pair the two newly created changesets (revs 13 and 14), the bookmark gets moved to their ancestor (rev 0). Instead, it should've moved to the last of their successors (rev 12).

oops: backed out changeset 7ac40b4ea24c Anton requested some changes on it.

compat: fix `setupevolveunfinished` for upstream

evolve: fix the code flow pattern of solving obswdir par and troubled revs Now we will go to _handlenotrouble() (which prints messages about no revs to solve) only when there is no troubled revs and working dir parent is not obsolete. This change also saves us from an issue which was about looking into the revset (smartset contains troubled revs to solve) when a rev from the revset gets hidden. This happens in the case when our wdir parent is obsolete. After resolving obswdir parent we were looking into the revset to check if there is any troubled revs to solve but we should have performed this check before performing the obswdir resolution. Changes in test file reflect this fixed behaviour.

evolve: refactor for consistent behavior of evolve when wdp is obsolete This patch make sure that when working directory parent is obsolete `hg evolve` and `hg evolve --all` don't behave differently.

evolve: backout 3027005c42c3 to reintroduce a bug for right fix This patch backout 3027005c42c3 as it was accepted by mistake while it was being "in-discussion" state.

pick: register pickstate as an unfinished state This way pickstate file will indicate that unfinished pick command needs to be dealt with (--continue or --abort) before modifying the repo. Otherwise it would be e.g. possible to commit during an interrupted pick and that's not expected.

pick: rename variable for unfinishedstates

pick: actually delete pickstate if --abort is given Makes pick to be, uh, actually aborted.

evolve: orphans that evolve into nothing don't need successors (issue5967) When continuing to solve an orphan that created no changes (i.e. clean wdir), _completeorphan() used to create an obsmarker that said that the result of that orphan evolution is the currently checked out changeset. That's not a correct obsmarker, because all of the orphan's changes were dropped and so it had no effect on the currently checked out changeset. This is an issue that has only existed when --continu'ing evolve, that's why the fix touches _completeorphan(), but not _solveunstable(). This fix is adapted from a similar "if node is None" block in _finalizerelocate().