delta-find: add a way to control the number of bases tested at the same time See inline comment for details. The feature is currently disabled, but should be enabled by default to mitigate some existing pathological cases. Also see the next changeset for details.

test: adjust test-push-race.t timeout's to overall test timeout The generic `tests/testlib/wait-on-file` mechanism scale its timeout with the value of `HGTEST_TIMEOUT`, the `delaypush.py` in `test-push-race.t` is not doing this, and we have been seeing more and more timeout from loaded CI worker lately. Adding this timeout scaling should help with that.

setup: include vendored 3rd party type stubs While pytype may not support PEP 561, PyCharm does, so having the stubs available means it can determine `foo = attr.ib(type=int)` means `foo` is an int. This only applies when using Mercurial as a library, like with TortoiseHg development- PyCharm is already smart enough to use the *.pyi files in the Mercurial source tree when hacking on Mercurial itself. I left the mercurial.cext stubs out because it seems very low level, that 3rd parties shouldn't be using directly.

ci: bump pytype to 2022.11.18 No particular reason, other than the current build is fairly old. It flagged a few more things (that weren't errors based on the logic around them), but OTOH, some of the pyi stubs it generates are less specific.

ci: run the script to add vendored type stubs to typeshed Since CI runs from docker images, it doesn't matter that this mucks with the typeshed bundled with pytype.

contrib: add a script for adding vendored type stubs to typeshed I really hate this, but pytype doesn't support PEP 561 and doesn't seem to have the equivalent of `MYPYPATH` to point to custom stubs. Ignoring the vendored stubs isn't necessarily harmful, but pytype has been choking on the vendored attr package after pytype 2022.03.29 with errors like this: File "/mnt/c/Users/Matt/hg/mercurial/linelog.py", line 52, in __iter__: Built-in function iter was called with the wrong arguments [wrong-arg-types] Expected: (collection: bytearray) Actually passed: (collection: mercurial.thirdparty.attr._make._CountingAttr) File "/mnt/c/Users/Matt/hg/mercurial/dirstateutils/v2.py", line 143, in pack: Built-in function len was called with the wrong arguments [wrong-arg-types] Expected: (obj: Sized) Actually passed: (obj: mercurial.thirdparty.attr._make._CountingAttr) Attributes of protocol Sized are not implemented on mercurial.thirdparty.attr._make._CountingAttr: __len__ File "/mnt/c/Users/Matt/hg/mercurial/dirstateutils/v2.py", line 144, in pack: No attribute 'rfind' on mercurial.thirdparty.attr._make._CountingAttr [attribute-error] File "/mnt/c/Users/Matt/hg/mercurial/dirstateutils/v2.py", line 146, in pack: Built-in function len was called with the wrong arguments [wrong-arg-types] Expected: (obj: Sized) Actually passed: (obj: mercurial.thirdparty.attr._make._CountingAttr) Attributes of protocol Sized are not implemented on mercurial.thirdparty.attr._make._CountingAttr: __len__ File "/mnt/c/Users/Matt/hg/mercurial/dirstateutils/v2.py", line 152, in pack: No attribute 'v2_data' on mercurial.thirdparty.attr._make._CountingAttr [attribute-error] File "/mnt/c/Users/Matt/hg/mercurial/util.py", line 2817, in go: unsupported operand type(s) for /: 'count: mercurial.thirdparty.attr._make._CountingAttr' and 'float: float' [unsupported-operands] No attribute '__truediv__' on 'count: mercurial.thirdparty.attr._make._CountingAttr' or '__rtruediv__' on 'float: float' Called from (traceback): line 2981, in __bytes__ This is essentially the same hack we've been using in TortoiseHg to add the vendored PyQt5 stubs. What I don't understand is pytype *still* generates *.pyi files under .pytype/pyi/mercurial/thirdparty/attr, even when the package is explicitly ignored in the pytype command line args. But it avoids the errors, which means we aren't stuck on pytype==2022.03.29. https://github.com/google/pytype/issues/151

contrib: update check-pytype.sh to list stubs that caused pytype to crash The same logic is in the TortoiseHg tests for running pytype, and it's useful to know if a new version of pytype is better or worse.

typing: add py.typed to mercurial.cext for PEP 561 support Unfortunately, pytype doesn't support this yet. But it was included with the attr package, so we might as well do it here for consistency. Unlike the attr package, these type hints are only partial, so they are marked as such[1] (but who knows if it matters, given these are C extensions, so no local source code to scan). [1] https://peps.python.org/pep-0561/#partial-stub-packages

typing: add missing signature for mercurial.cext.parsers.parse_index2() Flagged by pytype 2022.11.18 when the cext stubs are made visible to it. There are very likely other signatures that are missing, but this is enough to keep it happy for now.

typing: minor tweaks to allow updating to pytype 2022.11.18