comparison mercurial/__init__.py @ 33502:5d0c0c8d2929

selector2: vendor selector2 library

This library was a backport of the Python 3 "selectors" library. It is
useful to provide a better selector interface for Python2, to address some
issues of the plain old select.select, mentioned in the next patch.

The code [1] was ported using the MIT license, with some minor modifications
to make our test happy:

  1. "# no-check-code" was added since it's foreign code.
  2. "from __future__ import absolute_import" was added.
  3. "from collections import namedtuple, Mapping" changed to avoid direct
     symbol import.

[1]: https://github.com/SethMichaelLarson/selectors2/blob/d27dbd2fdc48331fb76ed431f44b6e6956de7f82/selectors2.py

# no-check-commit

33501:7008f6819002

    class hgpathentryfinder(importlib.abc.MetaPathFinder):
        """A sys.meta_path finder that uses a custom module loader."""
        def find_spec(self, fullname, path, target=None):
            # Only handle Mercurial-related modules.
            if not fullname.startswith(('mercurial.', 'hgext.', 'hgext3rd.')):
                return None
            # zstd is already dual-version clean, don't try and mangle it
            if fullname.startswith('mercurial.zstd'):
                return None
            # pywatchman is already dual-version clean, don't try and mangle it

33502:5d0c0c8d2929

    class hgpathentryfinder(importlib.abc.MetaPathFinder):
        """A sys.meta_path finder that uses a custom module loader."""
        def find_spec(self, fullname, path, target=None):
            # Only handle Mercurial-related modules.
            if not fullname.startswith(('mercurial.', 'hgext.', 'hgext3rd.')):
                return None
            # selectors2 is already dual-version clean, don't try and mangle it
            if fullname.startswith('mercurial.selectors2'):
                return None
            # zstd is already dual-version clean, don't try and mangle it
            if fullname.startswith('mercurial.zstd'):
                return None
            # pywatchman is already dual-version clean, don't try and mangle it