heptapod-ci: test with python3 too

heptapod-ci: add a --pure variant for the CI The end goal is to migrate all piece of the evolve CI currently en Jenkins.

heptapod-ci: let the number of CPU to be picked automatically We now have a larger, bigger machine to run the tests. Let's let run-tests.py pick the number of concurrent jobs.

heptapod-ci: point to our own docker images Lets step further into the future.

readme: update contribution guide We move to heptapod !

branching: merge with stable

docs: remove --all from hg evolve, since it's been the default for some time

docs: typo in user-guide.rst

obslog: don't overwrite {rev} keyword from changeset context Now that we have the whole changeset in the formatter context, there's no need to explicitly add {rev}. We should also deprecate the {shortdescription} keyword since it's no longer needed, but I don't know how to do that.

obslog: make changeset available to templater obslog templating currently has very limited support for templating the precursor changeset (when available). The only available keywords are {node}, {rev}, and {shortdescription}. This patch makes the entire changeset available to the templater by passing it to formatter.context(). That function has been available since Mercurial 4.2.

tests: simplify by pruning unwanted changesets a little earlier The pruned commits are not relevant to the test case, so let's clean them up at the end of the previous test case instead of part-way through the next one.

evolve: use more often seen metavariables in command synopsis strings Also use ellipsis when multiple options are acceptable.

topic: add more options to command synopsis string

debian: also build with python3 We build with Python 3 along with Python 2. The binary package will contain the extension for both python version. This is to ease transition until the mercurial package in Debian uses Python 3. The documentation is still built with Python 2 because it needs Mercurial (which is currently Python 2).

debian: update debhelper compat Level before 9 are deprecated says debhelper 12. Upgrade to 10, which is available in Debian oldstable and old Ubuntu releases to be conservative (and since we probably don't need more).

debian: make it possible to by-pass doc build

debian: define extend-diff-ignore for dpkg-source This makes it possible to build the source package from a hg checkout (and a sdist) by having dpkg-source ignore files not distributed in sdist.

debian: use pybuild and dh_sphinxdoc Use pybuild because it's kind of standard nowadays. Use sphinxdoc debhelper to have a Depends: libjs-sphinxdoc and common files (JS/CSS) symlinked.

debian: mark 9.2.1-1 as released

obsexchange: delete dead code for old exchange protocol Dead since 79a926b557f1 (compat: drop support for older exchange protocol, 2017-10-25).

branching: merge with stable

branching: merge the stable branch with the mercurial-5.1 branch This revert all the test changes to match the expected output for mercurial 5.1.

tests: add the new "-r" bit to the usual merge hint CORE-TEST-OUTPUT-UPDATE: 8197b395710e

test-output: reinstalled test change for 5.2 This effectively reinstall: * 8345b852cd4f * e804d5a7c193 * 62b60fc1983d * 2d85de79ead8 This mean backing out the following backout changeset: * 2eab4363fc62 * c1cc5b1f813a * 015cdd3fa469 * 3ba1c9dbf462

test-compat: opening test compatibility branch for mercurial 5.1 5.2 has a release candidate.

py3: encode/decode with going through ui in rst directive mercurial's ui wants bytes, doctutils wants text.

py3: fix setup.py --version Before: $ python3 setup.py --version b'9.3.0.dev' After: $ python3 setup.py --version 9.3.0.dev

rewind: preserve date

metaedit: don't change commit date by default (issue5994) We deliberately unset devel.default-date to allow hg commands to see the real system date, that demonstrates that metaedit doesn't fall back to system date for any of these commands.

tests: simply use testlib/common.sh in test-metaedit.t

tests: turn glog shell function into an alias in test-metaedit.t Mostly because we already have an alias and because creating an alias is the usual way to customize log -G in tests.

tests: clean up test-metaedit.t Mostly just artifacts from the times when it was one big test-evolve.t. All completely unused nowadays.

help: categorizing evolve and topic commands This makes them show up under the right categories in 'hg help'. Differential Revision: https://phab.mercurial-scm.org/D6999

tests: add the new "-r" bit to the usual merge hint CORE-TEST-OUTPUT-UPDATE: 8197b395710e

branching: merge back into default

pick: don't create any successors when there were no changes (issue6093) For example, when a changeset that user is trying to pick was already grafted or rebased (and no obsmarkers were created), pick will naturally say that there's no changes to commit and will not create the new commit. In that case it should not mark any changeset as a successor of the picked changeset, because the actual file changes were already there before picking. Technically, pick could (and did before this patch) mark the wdir commit as a successor of picked changeset (may be useful in the most trivial cases when e.g. wdir is a graft of the required change), but there are cases when the picked change is introduced in an ancestor of wdir, or even in multiple ancestors piece by piece. Pick definitely shouldn't be trying to guess something this complicated, so with this patch it always marks the picked change as pruned if it gave no changes to commit.

packaging: mark as development version This avoid confusion.

Added tag 9.2.1 for changeset d989bab720e5

test-compat: merge mercurial-4.6 into mercurial-4.5

test-compat: merge mercurial-4.7 into mercurial-4.6

test-compat: merge mercurial-4.8 into mercurial-4.7

test-compat: merge mercurial-4.9 into mercurial-4.8

test-compat: merge mercurial-5.0 into mercurial-4.9

test-compat: merge stable into mercurial-5.0

packaging: prepare version 9.2.1

packaging: update changelog

manifest: exclude the gitlab file (oops)

branching: merge with stable

py3: return unicode from setup.py's get_version py3 expects the version number for eggs to be unicode, so despite 9.2.0 being the first evolve release with beta py3 support it isn't currently pip installable since it dies with: File "*/setuptools/command/egg_info.py", line *, in tagged_version return safe_version(version + self.vtags) TypeError: can't concat str to bytes The `setup.py install` test added in a previous commit should cover this since it died in a different but similar way before.

py3: remove smartquotes from README They break running setup.py with py3 but only in tests, because in the test environment `locale.getpreferredencoding()` is ANSI_X3.4-1968, so the file is `open()`ed with that as the encoding. An alternative for fixing this would be to make the `open()` call with `encoding='utf-8'` under py3, which would be safe against any future non-ascii in README.

setup: make runnable from other dirs Currently it fails when run in that way for two reasons: - the description is loaded from the README file but with a path relative to the working directory - module references have the same issue, which is fixed with package_dir.

setup: add a test for running setup.py `python3 -m pip install hg-evolve==9.2.0` currently fails, despite 9.2.0 being the first beta py3 release, because of unicode issues with the version number. `setup.py install` is a proxy test for pip install since it also suffers from similar, however the test currently fails due to running setup.py from a different directory to the one it is in. Also add a test for `hg version -v` with evolve enabled since a naive first solution for the pip issue was to just change `__version__` to a `u''` string, but that busts version display in `version -v`, which isn't currently picked up by tests.

gitlab-ci: be bold and try to run the full test in them This is a basic version that should work reasonably well. The setup is a bit costly and the cleanup is not guaranteed yet.

gitlab-ci: basic test with flake8 Let us step into the future.

branching: merge back with stable version 9.2.0 have been released

branching: preserve test change on stable CORE-TEST-OUTPUT-UPDATE: cdf0e9523de1 CORE-TEST-OUTPUT-UPDATE: d7304434390f CORE-TEST-OUTPUT-UPDATE: 181ee2118a96 CORE-TEST-OUTPUT-UPDATE: 181ee2118a96

packing: mark as development version This avoid confusion when installing from source.

Added tag 9.2.0 for changeset 40795751be1c

test-compat: merge mercurial-4.6 into mercurial-4.5

test-compat: merge mercurial-4.7 into mercurial-4.6

test-compat: merge mercurial-4.8 into mercurial-4.7

test-compat: merge mercurial-4.9 into mercurial-4.8

test-compat: merge mercurial-5.0 into mercurial-4.9

test-compat: merge stable into mercurial-5.0

changelog: update for coming 9.2.0

test: backed out test change applied in 2d85de79ead8

test: backed out test change applied in 62b60fc1983d

test: backed out test change applied in e804d5a7c193

test: backed out test change applied in 8345b852cd4f

branching: merge with stable

stable-doc: note about not storing smaller range

stable-doc: small typo

stable-doc: add more advanced examples

stable-doc: add multiples example for the simple cases

test-output: oops CORE-TEST-OUTPUT-UPDATE: 181ee2118a96

test: update part count in tests An off by one error got fixed upstream. CORE-TEST-OUTPUT-UPDATE: 181ee2118a96

evolve: check that relocating makes sense in _solvedivergent() (issue5958)

tests: demonstrate content divergence causing "relocate node on top of itself"

cmdstate: introduce a "saver" contextmanager and use it in place of save() Previously, the state was only saved in some paths out of these functions. This can be problematic, if the user ctrl-c's (or `kill -9`'s) the process, or we exit out of `relocate` for anything besides the "expected" reason, we won't record that we were in the middle of an evolve. One of our users has discovered that this leaves hg in a weird state; the user did something like this: ``` $ hg evolve <something goes wrong with the merge tool, hits ctrl-c> <deals with the merge conflicts> $ hg evolve --continue abort: no interrupted evolve to continue $ hg evolve abort: uncommitted changes # Note: commands.status.verbose=True is set. $ hg status M foo # The repository is in an unfinished *update* state. # No unresolved merge conflicts # To continue: hg update ``` The user did an `hg update`, but it didn't actually do anything besides take it out of the unfinished update state (the files were still dirty in the working directory).

cmdstate: avoid setting a default argument to a mutable object (`{}`) If there's ever more than one cmdstate for the lifetime of the process, this can cause surprising behavior where the later cmdstates pick up options from the earlier ones. I've not seen any evidence this is actually causing any issues, but it's subtle enough that it should probably be fixed to help save significant debugging time later.

cmdstate: switch to new-style classes This isn't a huge issue and isn't necessary on Python3, but we're still Python2 compatible and we should be consistent (and strongly prefer new-style classes); this is the only class that is not deriving from object that I could find.

branching: merge stable into default

docs: add example for the `prune` command Giving at least one example helps clear up the syntax, especially since most options will follow a very similar pattern.

tests: add some more actions to test-issue-6028, describe what's being done This patch does two things: it explains what's happening in the test file so it's easier to understand, and also it adds checks that make sure something like swapping merge parents is not accidentally breaking anything. The primary reason to touch this test file was that it was broken by a change in core's merge.graft() that erroneously swapped merge parents. Since only evolve uses merge.graft() for merge commits and there aren't any tests in core for it, let's test it here. Plus, this test case is pretty simple and these additional checks don't make it too complicated.

topic: fix some API to make it more robust The new code can deal with changes in upstream mercurial.

rewriteutil: move allowdivergence check to foldcheck() foldcheck() calls precheck() first and then performs more fold-specific checks.

test: change to output around transaction timing CORE-TEST-OUTPUT-UPDATE: d7304434390f

branching: merge with stable There have been multiple fix on stable.

stablerange: add some data from field testing This show that in number of stable range to track stay reasonable.

stablerange: add a debugstablerangecache command The command display get some data about stable range in a repository.

stablerange: add some documentation about the general concept

stablesort: add some field data about stable sort cache

stablesort: introduce a small debugstablesortcache command This give a small insight on the cache content.

stablesort: add some documentation for stablesort This should help people to understand what is going on here.

fold: check allowdivergence before folding obsolete changesets (issue5817)

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