typing: add a few trivial type hints to `mercurial/templater.py` Since hg 3dbc7b1ecaba, pytype started inferring that the second value in the tuple is `BinaryIO`, but still hasn't been able to figure out the rest of `open_template()`. We can be more precise.

typing: add a few type hints to `mercurial/revlog.py` Somewhere between hg 3dbc7b1ecaba and hg 8e3f6b5bf720, pytype stopped being able to infer the type for `_docket_file` and `compress()`. Lock those types in before they get lost.

typing: add a trivial type hint to `mercurial/posix.py` to avoid an @overload Since hg 3dbc7b1ecaba, pytype added an `@overload` for this function, without a type on the parameter. That's wrong, and undermines the hints on the non-trivial functions.

typing: add some trivial type hints to `mercurial/match.py` These were new methods since hg 3dbc7b1ecaba, but surprisingly pytype couldn't figure them out.

typing: add a type hint to `mercurial/hg.py` Somewhere between hg 3dbc7b1ecaba and hg 8e3f6b5bf720, the first value of the tuple changed from bytes to str. Let's lock this in, so that pytype flags it if someone mistakenly adds a tuple with bytes somewhere.

typing: restore `encoding.encoding` and `encoding.encodingmode` to bytes Somewhere between hg 3dbc7b1ecaba and hg 8e3f6b5bf720, pytype determined the signature of these fields changed from `bytes` to `Any`. Not sure why- the type of `environ` then and now is: `Union[WindowsEnviron, Dict[bytes, bytes], os._Environ[bytes]]` That said, PyCharm wasn't able to figure out the type of `environ`, and the `WindowsEnviron` class extends `MutableMapping` without specifying bytes for the key and value types in py3.9. But that's not changed in my setup, so I can't explain it.

typing: add some trivial type hints to `mercurial/bundlecaches.py` The function is meant for extensions, but it wasn't obvious what was expected without looking through the code. Also, pytype couldn't figure it out either.

typing: add some type hints for bundle2 capabilities Somewhere between hg 3dbc7b1ecaba and hg 8e3f6b5bf720, pytype determined the signature of `bundle20.capabilities` changed from `Dict[bytes, Tuple[bytes]]` to `Dict[bytes, Union[List[bytes], Tuple[bytes]]]`. First, I did try to simply be explicit about the previously inferred type, but it does seem to mix and match list/tuple now (e.g. in `writenewbundle()`). I tried changing the new list usage to tuple, but a couple of things complained, (and I think lists of one item are a little more clear to read anyway). So then I typed the dict value as `Sequence[bytes]`, which worked fine. But there's also a module level `capabilities` field, and when that's typed, pytype complains about `Sequence[bytes]` lacking `__add__`[1]. So I gave up, and just assigned it the type it wanted, with an alias. If somebody feels motivated to make the type consistent, it's simple enough to change the alias. The mutable default value to the constructor was removed to appease PyCharm's type checking on the field. (I didn't bother running the code through pytype prior to changing it, because we've previously made an effort to remove this pattern anyway.) I'm not sure why `getrepocaps()` has a default value for `role` that apparently raises an exception. It's just flagged for now so this series can land without risking additional problems. [1] https://foss.heptapod.net/mercurial/mercurial-devel/-/jobs/2466903

typing: add a few type hints to `mercurial/utils/urlutil.py` Somewhere between hg 3dbc7b1ecaba and hg 8e3f6b5bf720, `_pathsuboptions` changed from `Dict[bytes, Tuple[bytes, Any]]` to `Dict[bytes, Tuple[str, Any]]`, and it caught my attention from diffing the local *.pyi files. The change is correct based on the assertion, so let's get pytype to check for this instead of relying on the assertion alone.

typing: add type hints to `mercurial/utils/resourceutil.py` The `except` path requires byte args (because of the byte based manipulation in `_package_path()`), while the `else` case tolerates `AnyStr`. Pytype was unable to figure this out, and we should make sure the interface is the same for all environments.

copyright: update to 2024

branching: merge stable into default for 6.9 cycle

Added signature for changeset 11f41248595b

Added tag 6.8 for changeset 11f41248595b

relnotes: add 6.8

test-check: don't report distutils as a local import On python 3.12 this is wrongly reported as a local import. So we adjust the checker to avoid it.

Backed out changeset f28c52a9f7b4 This backout and the previous are due to a large performance regression detected in repositories with a lot of obsmarkers when performing a clone. A better fix will come along at the start of the next cycle.

Backed out changeset ff523675cd69

rust: use `cpython` 0.7.2 crate to add support for Python 3.12 This will give us more headroom until we can migrate to PyO3 some day.

revbranchcache: disable mmap access by default The revbranchcache can be truncated (if some part of it is detected as invalid). Using mmap on file we truncate is not an option at access to truncated part would result in a SIGBUS signal. So we disable the mmap by default until we fix this issue.

portability: fix build on Solaris-derived systemd Current Illumos and older Solaris require _XOPEN_SOURCE for msg_control. O_DIRECTORY doesn't exist on older systems either, so fallback to O_RDONLY. It's good enough as a repository will require both R and X permission anyway.

mmap: only use mmap to read revlog persistent nodemap if it is safe Cf `is_mmap_safe` docstring.

mmap: fix another instance of reverse mmap logic in persistent nodemap This fix the same kind of issue as 85d96517e650

mmap: only use mmap to read rev-branch-cache data if it is safe Cf `is_mmap_safe` docstring.