tests: demonstrate that fold doesn't care about allowdivergence config option

stack: remove unnecessary copying of rdependencies rdependencies is not modified in any way in this method, so no need to copy it.

stack: make a deep copy of `dependencies` before modifying its items The algorithm later on in this method uses .remove() to remove individual elements from items in dependencies, which before this patch modified the cached property contents. So for further use that dictionary was in the form of {1: set([])}, i.e. all sets were empty. This deep copy block could be way simpler, but the problem is that sometimes we get lists of _succs() from evolvebits.builddependencies(). Note: this happens only in topic's stack version of builddependencies() and it looks like a suboptimal way to handle multiple successors (see evolve's counterpart function). stack.builddependencies method is removed, it has served its purpose (see the previous patch).

stack: demonstrate that not reusing cached property gives different results Instead of using self._dependencies, which is a cached property, let's get fresh deps and rdeps in stack.revs method using a newly introduced stack.builddependencies method (will be removed in the next patch). This makes it easier to explain why the next patch is correct.

branching: merge with stable

changelog: add missing entry for 9af212b8565a

evolve: test that target is not orig in _solveunstable() (issue6097) `newer` is the result of obsutil.successorssets() and can be [[orig.node()]], in which case later on in this function evolve will try to rebase orig onto orig, which is not correct. So let's just check this particular case. This fix doesn't cover cases when successorssets() result contains orig.node() not at [0][0]. Such cases need tests.

tests: demonstrate an orphan changeset cause "relocate node on top of itself" See issue6097.

obslog: only indent the first chunk and chunks just after newlines (issue6175)

tests: demonstrate too many spaces in olog -p output with word-diff

rewind: add --keep flag that "doesn't modify working directory" The actual logic is more complicated than the flag description, but it's sufficiently similar to other --keep flags in action. Unlike strip (or prune), rewind always needs to modify the working directory to commit new revisions that "revive" old ones [1], see _revive_revision() (and rewriteutil.rewrite()). Because of that we don't prevent rewind from modifying wdir, but instead use hg.updaterepo() to update to the old changeset after the "revival" process is complete. Then we rebuild the dirstate based on the commit that rewind would update to without --keep. Since dirstate.rebuild() doesn't restore status of some files (added, removed, also copies and renames), we rely on cmdutil.revert(). It's a fairly crude solution and needs to be removed when implementing the missing copy tracing between oldctx and newctx (which are related only by obsolescence). [1] IOW this means that --keep doesn't allow rewinding if wdir is dirty (unlike e.g. strip).

tests: separate rewinding of merge commits, temporarily drop an error case The error case will come back in the following commit, because it organically fits there without the need of a separate working clone.

python3: add python3 beta support to the CHANGELOG

python3: mention beta Python 3 support in README

python3: add supported python versions to setup.py Mercurial technically can support Python 3.5 (although no lower, see its setup.py), but `evolve` probably won't because it represents more work for an underrepresented Python version. If you happen to *really* need evolve to work on Python 3 and you're reading this message, send an email to the mailing list, or contribute patches.

test: update output for wider cache warming CORE-TEST-OUTPUT-UPDATE: cdf0e9523de1

branching: merge with stable format source worked smoothly :-)

python3: use format-source to run byteify-strings in .py files Using the format-source extension smooth out the pain of merging after auto-formatting. This change makes all of the Evolve test suite pass under python3 and has added benefit of being 100% automated using mercurial's `byteify-strings` script version 1.0 (revision 11498aa91c036c6d70f7ac5ee5af2664a84a1130). How to benefit from the help of format-source is explained in the README.

topic: add a new random attribute (This is mostly an excuse to test the format-source setup)

python3: enforce byte prefix for vfs.open() Changeset ea8da5aa23c6e723d7f0006387a1a20eef58fc9a added raw prefix to open(), but also to vfs.open(). The latter only handles bytestring arguments.

python3: add raw prefix to sqlite isolation level

python3: add ignore block around python 2 compatibility if branch

flake8: silence F633 error

python3: add raw prefix to edge-cases kwargs-like objects

python3: add raw prefix to open()-like functions

python3: add raw prefix to all array.array() calls

python3: add raw prefix to "troubles"-related dicts The `byteify-strings.py` script cannot know that these will be used in a way that requires to use a system string without some pretty hardcore hardcoding.

python3: add raw prefix in cases harder to analyze at the token level The `byteify-strings.py` script would be a lot more complicated if it had to do backtracking and other more advanced static analysis to figure our those cases, so we have to add the raw prefix to those cases manually.

python3: add byte prefix for objects that look like kwargs but aren't The `byteify-strings.py` script has no way of knowing that those aren't acutally kwargs since it works purely at the tokenization level, so we have to add the byte prefix to their keys manually.

python3: mark all SQL queries as raw strings

python3: prefix all regex to work with python 2 and 3

pick: added support for hg abort This patch isolates abort logic for `hg pick --abort` as `abortpick()`. For independent calls via `hg abort` `hgabortpick()` is created and registered to the state detection API. Results are shown as tests.