share: provide a more useful text for hg help Differential Revision: https://phab.mercurial-scm.org/D8651

procutil: make recent fix for zombies compatible with py2 The fix in ed684a82e29b (procutil: always waiting on child processes to prevent zombies with 'hg serve', 2020-05-07) works only on Python 3 because it passes a `daemon` argument to `threading.Thread()`. Python 2 requires you to assign to the `.daemon` property instead. Python 3 also seems to support that, so this patch fixes the code by unconditionally using the old form. Differential Revision: https://phab.mercurial-scm.org/D8657

pycompat: fix crash when default locale is unknown Instead, fall back to the filesystem encoding if the default locale is unknown.

help: document meaning of '%' in graphlog output I added the feature in 14d0e89520a2 (graphlog: use '%' for other context in merge conflict, 2020-01-28), but I didn't think to look for documentation until today (because an internal user asked about it). Differential Revision: https://phab.mercurial-scm.org/D8649

py3: fix broken man page generation, it was generating `(default: NUL*)` `bytes(default)` was producing things like `(default: \x00)` when handed non-bytes values such as `1`, `10`, or `True`. The man page generation would apparently ignore these bytes and produce man pages that had the string `(default: )`. Test Plan: - Ran `cd doc; python3 gendoc.py "hg.1.gendoc"` and grepped for bad output - Ran `make deb`, extracted the deb, manually inspected `hg.1` file. Differential Revision: https://phab.mercurial-scm.org/D8639

hg-core: add Operation interface for high-level hg operations A distinction is made between operations and commands. An operation is a high-level function of mercurial whereas a command is what is exposed by the cli. A single command can use several operations to achieve its goal. Differential Revision: https://phab.mercurial-scm.org/D8608

rust: do a clippy pass This is the result of running `cargo clippy` on hg-core/hg-cpython and fixing the lints that do not require too much code churn (and would warrant a separate commit/complete refactor) and only come from our code (a lot of warnings in hg-cpython come from `rust-cpython`). Most of those were good lints, two of them was the linter not being smart enough (or compiler to get up to `clippy`'s level depending on how you see it). Maybe in the future we could have `clippy` be part of the CI. Differential Revision: https://phab.mercurial-scm.org/D8635