histedit: add obsolete support When the obsolete feature is enabled, histedit creates obsolescence marker instead of stripping replaced changesets. For now, we keep stripping temporary nodes created along the way.

histedit: replace various nodes lists with replacement graph (and issue3582) This changeset rewrites the change tracking logic of histedit to record every operation it does. Tracked operations record the full list of "old" node that will eventually be removed to the list of new nodes that replace it. Operations on temporary nodes are tracked too. Dropped changesets are also recorded as an "old" node replacement by nothing. This logic is similar to the obsolescence marker one and will be used for this purpose in later commit. This new logic implies a big amount of change in the histedit code base. histedit action functions now always return a tuple of (new-ctx, [list of rewriting operations]) The old `created`, `replaced` and `tmpnodes` are no longer returned and stored during histedit operation. When such information is necessary it is computed from the replacement graph. This computation is done in the `processreplacement` function. The `replacemap` is also dropped. It is computed at the end of the command from the graph. The `bootstrapcontinue` methods are altered to compute this different kind of information. This new mechanism requires much less information to be written on disk. Note: This changes allows a more accurate bookmark movement. bookmark on dropped changeset are now move of their parent (or replacement of their parent) instead of their children. This fix issue3582

merge with durin42

clone: update to @ bookmark if it exists

templatefilters: avoid traceback caused by bogus date input (issue3344) Wrap datefilters which split date texts with util.parsedate. We do not abort, as the bogus date must have been given by the user.

notify: support revset selection for subscriptions A repo pattern for any notify configuration contains a glob matching the path to the repo. Additionally, it may now contain a revset spec, separated from the glob by '#'. Example: [reposubs] */widgets#branch(release) = qa-team@example.com This sends to ``qa-team@example.com`` whenever a changeset on the ``release`` branch triggers a notification in any repository ending in ``widgets``. This patch was completely done by David Champion <dgc@uchicago.edu> with me making tiny changes to his tests.

revsets: add branchpoint() function The branchpoint() function returns changesets with more than one child. Eventually I would like to be able to see only branch points and merge points in a graphical log to see the topology of the repository.

vfs: use fchmod for _fixfilemode On general principle, we should use fchmod instead of chmod to avoid security pitfalls, although none is likely possible here.

tests: correctly report a test killed by a signal

histedit: update bookmark movement notice New format is: histedit: moving bookmarks <bookmark> from <old> to <new>