test-compat: merge mercurial-5.1 into mercurial-5.0

test-compat: merge stable into mercurial-5.1

heptapod-ci: add a script to map evolve branch to mercurial revision for tests map-hg-rev.sh can be tested using this command: ```sh for i in $(hg log -T '{branch}\n' | sort -u); do echo $i $(testlib/map-hg-rev.sh $i) done ```

pytype: ignore abc.ABCMeta metaclasses that don't work on py3 See 70d42e2ad9b4 in hg: We can remove this when we're Python 3-only, but for now it's just too awkward to deal with and it's harmless.

tests: remove extra whitespace before patch in obslog output The indent() template function was fixed in https://phab.mercurial-scm.org/D7432 so now we have less trailing whitespace in obslog output. CORE-TEST-OUTPUT-UPDATE: fa246ada356b

branching: merge with stable

changelog: add a couple of missing entry about the next feature release

changelog: fix entry in the wrong location That change was made on default, not stable.

changelog: add a wheelbarrow of missing entries

heptapod-ci: simpler CI We have a mercurial clone available in the docker image now. This will same some time to avoid a full Mercurial clone for each run.

heptapod-ci: run the test with color This make the result easier to read.

compat: compatibility for cl.nodemap.get vs cl.index.get_rev

compat: compatibility for pathuril.dirs vs util.dirs

obslog: phase divergence fix for 5c41bb482867 I forgot to pull the latest version before publishing the topic :-(

obslog: phase divergence fix for b135591bec1a I forgot to pull the latest version before publishing the topic :-(

obslog: make {descdiff} not be indented and leave that to the template Same idea as the previous patch and same explanation for changes to the test case.

obslog: make {patch} not be indented and leave that to the template This removes some unwanted indentation from the tests. In the first case, it's because indent() doesn't indent a blank line. In the second case, it's because we used templating with {patch} and had not requested indentation (but we still got it before this patch). Note that tests will only pass with a very recent Mercurial (one with https://phab.mercurial-scm.org/D7432 applied).

obslog: make {succnodes} be full hex nodes It should be up to the user to shorten the nodeid as much or as little as they like.

obslog: remove now-unused code for plain styling We now always use a non-plain formatter for the non-local-filtering code paths, so we can remove the code for plain styling. I couldn't figure out how to replace the fm.formatlist() by something less about formatting, so I've only removed the irrelevant arguments from those calls.

obslog: redefine default output as a template, unless -f was given This was easier than I expected to do without affecting any test output at all. `hg obslog -f` is pretty broken with templating. For example, it inserts a single "date" field, but it provides two values for it if the dates are different. That results in a traceback when running e.g. `hg obslog -f -Tfoo` with non-local obsmarkers with different dates. We need to figure out what we want to put in the template for the filtered case. I've just left it out for now.

obslog: add newline after all markers in non-graphlog to match graphlog I'd also be fine with doing the reverse if that's preferred, but I really want them to be the same so they can use the same template.

obslog: make reason for unavailable patch part of template We need the reason to be in the template in order to be able to templatize the whole output.

obslog: make content and description patches available to templater The code was repeatedly calling fm.write() with the same field ("patch" and "descdiff"). I think that led to the value constantly getting replaced, so when it was used in a template (as {patch} or {descdiff}), it would only get the last value, which was always an empty string. This patch fixes it by writing the full patch to a temporary buffer and then assigning the whole patch to the formatter field.

obslog: rename {desc-diff} to {descdiff} since the former is invalid

tests: demonstrate broken {patch} and {desc-diff} template keywords

topic: drop compat.successorssets(), it's not used The only place in topics that uses successorssets function is in evolvebits.py, and it's using that function from obsutil directly.

topic: drop compat.getmarkers() and use obsutil.getmarkers() directly The function in question was moved from obsolete to obsutil in a14e2e7f7d1f (hg 4.3). See also 6aff4bb3970d for hgext3rd/evolve.

cmdrewrite: avoid accessing scmutil.status fields by index Support for indexed access is going away in Mercurial. Accessing the fields by name is clearer anyway.

obslog: avoid using a formatter after calling end() on it I don't know if makes a difference, but it feels wrong to use it after calling end(). We can simply use the parent formatter in this case.

obslog: use plural name "effects" for list of all effects Same reasoning as the previous patch, but here the singular was used for the list instead. This patch also renames the variable that represents the list of effects to plural "effects" to reduce confusion.