urlutil: make `paths` class old list of `path` We move from a `{name → path}` mapping to a `{name → [path]}` mapping. And update all user code accordingly. For now, all the list contains exactly one element, but we are now in a good place to make the config understand a list of url. Differential Revision: https://phab.mercurial-scm.org/D10447

urlutil: extract `chain_path` in a function This will no longer modify `path` inplace so it does not make much sense as a method. Differential Revision: https://phab.mercurial-scm.org/D10446

urlutil: add a `copy` method to `path This will be useful when inheriting from multiple path at the same time. Differential Revision: https://phab.mercurial-scm.org/D10445

template: add a `paths` field to all entry in peerurls This make it possible to display multiple path per name in the near future. Differential Revision: https://phab.mercurial-scm.org/D10444

cache: avoid warming the fnodetags cache after clone That cache can quite expensive to compute on large repository as not that `hg clone` is warming all cache, this can introduces a significant slowdown for clone time[1]. As a stop gap measure introduce a quick fix for that on stable, skipping the fnodetags cache post-clone. [1] https://www.mercurial-scm.org/pipermail/mercurial/2021-April/052679.html Differential Revision: https://phab.mercurial-scm.org/D10695

run-tests: fix whitelist/blacklist with directories on Windows The file name is resolved with `os.path.relpath()` in the `Test` constructor, which yields `\` on Windows. That doesn't match the `/` separator when using MSYS tools to build the list, and it isn't obvious that this is the problem because directory separators can mostly be used interchangeably. The `--test-list` argument already seems to be properly handled.

run-tests: ignore PermissionError when checking available ports I'm not sure what this is, but I'm getting it occasionally when running in WSL. When it was raised, none of the tests could run.

status: Add some more tests Trying to improve coverage for various non-ovbious scenarios Differential Revision: https://phab.mercurial-scm.org/D10704

run-tests: use the same python version for shebang lines on Windows The latest py3 is used if the minor number isn't specified. After running the script to install all of the build dependencies, that moved the default from 3.8 to 3.9 on the CI system. That in turn caused a bunch of tests to be skipped that were running prior, even when the test runner was invoked with `py -3.8`. While we should almost always use the latest version, we really shouldn't make it hard to test different versions or allow things to randomly break in subtle ways like that. Differential Revision: https://phab.mercurial-scm.org/D10702

vfs: Fix deprecation warning in Python 3.10 (issue6520) Differential Revision: https://phab.mercurial-scm.org/D10710