persistent-nodemap: Fix Rust declarations for Revlog_CAPI signatures Use Rust’s `libc::ssize_t` as the closest match to C’s `Py_ssize_t`. See details in test comment. Going forward we should find a way to have such Rust declarations auto-generated from C headers at build time, or auto-checked against them in a test. Differential Revision: https://phab.mercurial-scm.org/D9901

persistent-nodemap: add test case reproducing a Rust panic Thanks to Mitchell Plamann for reporting this bug. The next commit fixes it. Differential Revision: https://phab.mercurial-scm.org/D9900

copies: fix an incorrect comment in graftcopies() from recent D9802 I don't think the bit about creating a merge in the filelog was correct. Or at least I couldn't find a case where it happened. Differential Revision: https://phab.mercurial-scm.org/D9899

narrow: delete a stale TODO about not sending groups the client already has 2c5835b4246b changed the changegroup generation to not send treemanifests for directories the client had before widening. As that commit mentions, we had already stopped before that commit to send the changelog and filelogs for files the client already had. Differential Revision: https://phab.mercurial-scm.org/D9898

copies: add an devel option to trace all files Filelog based copy tracing only trace copy for file that have been added. This is a trade off between skipping some rare copy case in exchange for avoiding atrocious-to-the-point-of-unusable performance. The changeset centric copy tracing does not need this trade off and naturally trace all copy, include the one involving non-new files. In order to ease the comparison from both algorithm, we add a small devel option to trace copy for all files in the target revisions. Differential Revision: https://phab.mercurial-scm.org/D9796

revlog: prepare pure parser for being overloaded The current class uses module-level variables which don't allow for reusing the current logic for a slightly different revlog version. Differential Revision: https://phab.mercurial-scm.org/D9903

revlog: use a less probable revlog version for backwards compatibility This allows us to define a usable v2. Differential Revision: https://phab.mercurial-scm.org/D9902

clang-format: show required version in skip message This will help people to configure their black Differential Revision: https://phab.mercurial-scm.org/D9890

heptapod-ci: indicate which version of clang-format is used for the run This will help understand possible mismatch Differential Revision: https://phab.mercurial-scm.org/D9889

black: show required version in skip message This will help people to configure their black Differential Revision: https://phab.mercurial-scm.org/D9888

heptapod-ci: indicate which version of black is used for the run This will help understand possible mismatch Differential Revision: https://phab.mercurial-scm.org/D9887

heptapod-ci: add a default value for HG_CI_IMAGE_TAG Differential Revision: https://phab.mercurial-scm.org/D9886

convert: option to set date and time for svn commits Converting to subversion repository is not preserving original commit dates as it may break some subversion functionality if commit dates are not monotonically increasing. This patch adds `convert.svn.dangerous-set-commit-dates` configuration option to change this behaviour and enable commit dates convertion for those who want to take risks. Subversion always uses commit dates with UTC timezone, so only timestamps are used. Test `test-convert-svn-sink.t` uses `svnxml.py` script to dump history of svn repositories. Atm the script is not printing `date` field from svn log. This patch changes this to allow checks on correctness of date and time convertion. Documentation is updated. Additional test case is added to test commit dates convertion. Differential Revision: https://phab.mercurial-scm.org/D9721

copies: simplify the conditional for _filter's case 3 The conditional is much simpler and the test are actually happier. This clarification of the conditional will also be necessary to properly support tracing more renames in a coming changeset. Differential Revision: https://phab.mercurial-scm.org/D9795

copies: clarify which case some conditional are handling This make the function a bit clearer. The middle conditional get no label because we about about to remove it. See next changeset for details. Differential Revision: https://phab.mercurial-scm.org/D9794

copies: explicitly filter out existing file in graftcopies The `graftcopies` function does something very strange (maybe even wrong), it calls `_filter` with a pair of changeset that does not match the one used to compute the copies informations. We are about to do some rework of `_filter` to make it closer to its documented intent and fix a couple of bug. This means some of the logic that only make sense for graft need to go somewhere else. We add the extra filtering with proper documentation to `graftcopies`. Differential Revision: https://phab.mercurial-scm.org/D9802

histedit: rip out mysterious catch-all ignore curses.error handler I have no idea why this was here, and ripping it out doesn't obviously break anything for me (tests all pass, I can poke around chistedit UI a bit without issue), so I'm thinking we should rip it out and see if we get bug reports. Differential Revision: https://phab.mercurial-scm.org/D9855

histedit: notice when the main window underflows height and abort If you try to have a 13-line-tall terminal and use curses histedit, it fails by spinning in an infinite loop due to the catch-all ignore of curses errors on line 1682 of histedit.py. We should also fix that catch-all ignore of curses errors (what other demons lurk here, I wonder?) but we can trivially catch this case and guide the user to a happy path. We've seen this mostly in IDE users that have a tendency to have really tiny embedded terminal windows. Differential Revision: https://phab.mercurial-scm.org/D9854

histedit: don't assign to _ for unused values I don't know what this ignored value is, but we need to not clobber the _() function from gettext, or we get mysterious crashes instead of internationalizing some strings in my upcoming patches. Differential Revision: https://phab.mercurial-scm.org/D9853

hghave: list the module needed for the `vcr` check I'm tired of having to look up modules each time I setup a system, and try to distinguish between similar package names to get the right one. Now that the search API has been disabled, it's even harder. There are other python packages here that should be listed like this, but this is the one that came up missing today, so it's a start. Differential Revision: https://phab.mercurial-scm.org/D9879

debugshell: add a simple command for starting an interactive shell This simplifies interactive exploration of the Mercurial APIs. The ui and repo instances are provided as local variables. Differential Revision: https://phab.mercurial-scm.org/D9866

rust: replace an unsafe use of transmute with a safe use of bytes-cast Differential Revision: https://phab.mercurial-scm.org/D9859

rust: use the bytes-cast crate to parse persistent nodemaps This crate casts pointers to custom structs, with compile-time safety checks, for easy and efficient binary data parsing. See https://crates.io/crates/bytes-cast and https://docs.rs/bytes-cast/0.1.0/bytes_cast/ Differential Revision: https://phab.mercurial-scm.org/D9788

cext: restore the ability to build on Windows with py2 This broke in e92ca942ddca. Differential Revision: https://phab.mercurial-scm.org/D9867

command-namespace: use `::` are the command separator This was discussed on the mailing list / phab and `::` got a couple of positive feedback. I dediced to not introduce automatic folding of `::`, I feel like it make sense for `-`, but I like the expliciteness of `::`. So I am adding alias for backward compatibility. Differential Revision: https://phab.mercurial-scm.org/D9872

perf: test the formatting of a command help Since we are about to addd ':' in command name I want this covered. Differential Revision: https://phab.mercurial-scm.org/D9871

help: escape ':' (as '\:') when generating command names We need this before we can use ":" in command names. Differential Revision: https://phab.mercurial-scm.org/D9870

minirst: respect escaping in definition list key If we start adding `:` in command names… we need minirst to not choke on them. Differential Revision: https://phab.mercurial-scm.org/D9869

run-test: avoid byte issue when replacing output file of python test Otherwise we get error like:: FileNotFoundError: [Errno 2] No such file or directory: "b'…/tests/test-minirst.py'.out" Differential Revision: https://phab.mercurial-scm.org/D9868

store: use `endswith` to detect revlog extension Suggested by Gregory Szorc. Differential Revision: https://phab.mercurial-scm.org/D9865