run-tests: allow automatic test discovery when providing folder as argument Currently `run-tests.py` automatically discovers test only in the current directory if no argument is provided. This patch makes it possible to pass a number of tests and folders as arguments.

revert: do not reverse hunks in interactive when REV is not parent (issue5096) And introduce a new "apply" operation verb for this case as suggested in issue5096. This replaces the no longer used "revert" operation. In interactive revert, when reverting to something else that the parent revision, display an "apply this change" message with a diff that is not reversed. The rationale is that `hg revert -i -r REV` will show hunks of the diff from the working directory to REV and prompt the user to select them for applying (to working directory). This contradicts dcc56e10c23b in which it was decided to have the "direction" of prompted hunks reversed. Later on [1], there was a broad consensus (but no decision) towards the "as to be applied direction". Now that --interactive is no longer experimental (5910db5d1913), it's time to switch and thus we drop no longer used "experimental.revertalternateinteractivemode" configuration option. [1]: https://www.mercurial-scm.org/pipermail/mercurial-devel/2016-November/090142.html .. feature:: When interactive revert is run against a revision other than the working directory parent, the diff shown is the diff to *apply* to the working directory, rather than the diff to *discard* from the working copy. This is in line with related user experiences with `git` and appears to be less confusing with `ui.interface=curses`.

merge with stable

run-tests: endswith takes bytes as argument in python3, not str

patch: improve heuristics to not take the word "diff" as header (issue1879) The word "diff" is likely to appear in a commit message. Let's make it less likely by requiring "diff -" for "diff -r" or "diff --git".

rebase: drop --style option It existed from the very start, but I don't think the rebase command does support log-like templates.

run-tests: $TESTDIR can be something else than $PWD $TESTDIR is expected to be the directory were the test lives, and is often used to reference helper functions. However, it is now set to $PWD at test invocation time, so if `run-tests.py` is called from another folder, the test will fail. The solution is to force $TESTDIR to be the base directory of the test itself, irrespective of where the runner is called from.

obsolete: activate effect-flag by default Let's activate effect-flag by default as Evolve is experimental and in order to gather feedback from users.

debug: print parsed bundle2 capabilities with debugcapabilities The bundle2 capabilities are hard to read in their encoded form. We parse and print them in a human friendly way.

debug: add a debugcapabilities commands This new debugcommand prints the capabilities of any remote in a human friendly way. Improved bundle2 capabilities support will be introduced in the next changesets.

revert: no longer mark --interactive as experimental We seem to have settled down on behavior changes here (nothing matching revset `keyword(revert) and keyword(interactive)` since 4.2 was released), so let's go ahead and advertise this excellent feature. .. feature:: revert --interactive The revert command now accepts the flag --interactive to allow reverting only some of the changes to the specified files.

ui: add configlist doctest to document a bit more of the whitespace behavior I'm surprised this wasn't explicitly tested, so I added a test.

merge stable into default

test-run-tests: stabilize the test (issue5735) Previously there is a race condition because things happen in this order: 1. Check shouldStop 2. If shouldStop is false, print the diff 3. Call fail() -> set shouldStop The check and set should really happen in a same critical section. This patch adds a lock to address the issue. Test Plan: Run `run-tests.py -l test-run-tests.t` 20 times on gcc112 and the race condition does not reproduce. Differential Revision: https://phab.mercurial-scm.org/D1830

run-tests: avoid set PYTHONUSERBASE environment variable to None According to python documentation, get_config_var can return None and it was during running mercurial tests under a virtual environment with the local built mercurial installed as a python package with `pip install -e .`. On the other hand, if mercurial is installed in the user library folders with `pip install --local -e .` the issue doesn't reproduce. The fallback is that it will just set an empty string and everything should work as before, according to https://www.python.org/dev/peps/pep-0370/: The path to the user base directory can be overwritten with the environment variable PYTHONUSERBASE. The default location is used when PYTHONUSERBASE is not set or empty.

templatefilters: fix doc of basename() os.path.basename() does NOT strip trailing slashes. > Note that the result of this function is different from the Unix basename > program; where basename for '/foo/bar/' returns 'bar', the basename() > function returns an empty string (''). https://docs.python.org/2.7/library/os.path.html#os.path.basename

identify: document -r. explicitly how to disable wdir scanning (issue5622)

diff: disable diff.noprefix option for diffstat (issue5759) We could use patch.diffhunks() instead of patch.diff() to get filenames without parsing patch content, but that isn't always possible because we sometimes feed raw patch data to patch.diffstat().

hgweb: disable diff.noprefix option for diffstat Copied from cf1e15f91c90.

debugssl: convert port number to int (issue5757) It doesn't use util.getport(), which may resolve service name to port number.

histedit: preserve active branch while histediting The branch information was properly preserved in the changeset, but the "active" branch of the working copy could be lost (the branch of the base being used). Histedit used to behave properly in this regard but the case was not tested and regressed 4 years ago in ab2362e1672e.

templater: fix "one arguments"

tests: write and use a custom helper script to avoid find's -printf -printf on find is a GNU-ism and will be banned in an upcoming check-code change. Differential Revision: https://phab.mercurial-scm.org/D1597

convert: restore the ability to use bzr < 2.6.0 (issue5733) This effectively conditionalizes a234b32b744a. Some Linux distributions (like CentOS 7) use really old versions, and the change referenced was causing exceptions to be thrown. Even though the deprecation warning says 'since 2.5.0', it wasn't marked as such in 2.5.1, but is by 2.6.0. This was tested with 2.4.2 and 2.6.0 with PYTHONWARNINGS=::DeprecationWarning, and both paths were exercized.

Added signature for changeset a92b9f8e11ba

Added tag 4.4.2 for changeset a92b9f8e11ba

merge: check created file dirs for path conflicts only once (issue5716) In large repositories, updates involving the creation of many files check the same directories repeatedly in the wctx manifest. Move these checks out to a separate loop to avoid repeated checks hitting the manifest. Differential Revision: https://phab.mercurial-scm.org/D1226

merge: cache unknown dir checks (issue5716) As mentioned in D1222, the recent pathconflicts change regresses update performance in large repositories when many files are being updated. To mitigate this, we introduce two caches of directories that have already found to be either: - unknown directories, but which are not aliased by files and so don't need to be checked if they are files again; and - missing directores, which cannot cause path conflicts, and cannot contain a file that causes a path conflict. When checking the paths of a file, testing against this caches means we can skip tests that involve touching the filesystem. Differential Revision: https://phab.mercurial-scm.org/D1224