packaging: prepare release 6.2.1

compat: merge with stable Stable has multiple changeset that solve deprecation warning for the future Mercurial 4.3.

test-compat: merge with mercurial-3.9

test-compat: merge with mercurial-4.0 branch

test-compat: merge with mercurial-4.1 Nothing to report

test-compat: merge with stable Nothing special to report, minor blackbox output update and color extensions was needed for test-prune.t

deprecation: fix dirstate.beginparentchange deprecation warning Replace calls to dirstart.beginparentchange and dirstate.endparentchange to dirstate.parentchange context manager.

deprecation: fix cmdutil.command deprecation warning

obshistory: be more flexible about createmarkers API The API got touched in core.

inhibit: be more flexible on createmarkers API This API got touched in core.

merge with stable

obshashrange: document the experiment This should help people jump in.

obshashrange: add an option to disable local cache warming The cache still a bit too volatile an costly to update. This offer a way for developer working copy to only compute it when used.

obshashrange: re-warm less revision after reset rewarming every single revision get very expensive quickly. Instead we warm few key revision and rely on the fact this will warm enough useful subrange.

effectflag: simplify meta data change testing Let us just do one larger test. G: changed hgext3rd/evolve/obshistory.py

effectflag: add a small comment to suggest improvement The code run but we will likely need something easier to extend.

effectflag: handle invalid data If we get a marker with an invalid input we should not crash the whole process.

effetflag: move the flag back with the test of the creation logic Previous changeset was published by mistake.

obshistory: display informations from the obs marker effect flag Leverage the effect flag to actually show what change for each obsmarker in the obslog command. (first basic version).

test: add (glob) to globed line Ingloriously forgot to amend.

effectflag: add test combining multiple flag We check that multiple changes might be detected a the same time.

effectflag: basic diff change detection We adds some basic diff detection.

effectflag: detect parent change Add the detection of parent changes.

effectflag: detect meta changes Add the detection of known meta field changes. The known meta fields that we check are: - user - date - branch

effect-flag: rework existing test to prepare for mor tests

effectflag: allow to save effect of change in obsmarkers Obsmarkers lack a precious information, what are the changes between the source and the destination. This could be several thing: - The description has changed, with a amend -e for example - The parent has changed, with a rebase for example - The content has changed, with a amend for example - The meta, like the user, has change, with a amend -u for example Or any combination of them. We hijack the createobsmarkers in order to compute the modification and store the effect flag which is basically a bitfield of the changes list above and we store it in the metadata for the moment. The advantage of computing the flag just before creating the obs marker is that all commands will immediately be compatible and we can start working on the UI display of the flag. As a future optimization, the commands will be able to pass the flag directly or data to help computing them, for example amend knows if the description has changed or rebase now if the parent has changed, virtually removing the overhead. To start simple, this patch add the detection and storage of the effect flag when the description has changed. And hide it behind an experimental flag disabled by default 'experimental.evolution.effect-flags'. More flag will follow.

merge back with stable

readme: fix version number