view hgext/fsmonitor/pywatchman/encoding.py @ 52182:fa58f4f97337 stable tip

ci: shard the test run on mac os X

This should comes with some benefit:
- spread the load across more runner,
- reduce the real-time CI run,
- reduce the "retry" run when we need them.

We start with the Mac jobs, but that would be tremendously useful for Windows
too.

For linux, we need to reduce the startup overhead for this to be worth it.
Building smaller image and speeding up clone should help with that.

# Copyright 2016-present Facebook, Inc.
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from __future__ import annotations

import sys

from . import compat


"""Module to deal with filename encoding on the local system, as returned by
Watchman."""


if compat.PYTHON3:
    default_local_errors = "surrogateescape"

    def get_local_encoding():
        if sys.platform == "win32":
            # Watchman always returns UTF-8 encoded strings on Windows.
            return "utf-8"
        # On the Python 3 versions we support, sys.getfilesystemencoding never
        # returns None.
        return sys.getfilesystemencoding()

else:
    # Python 2 doesn't support surrogateescape, so use 'strict' by
    # default. Users can register a custom surrogateescape error handler and use
    # that if they so desire.
    default_local_errors = "strict"

    def get_local_encoding():
        if sys.platform == "win32":
            # Watchman always returns UTF-8 encoded strings on Windows.
            return "utf-8"
        fsencoding = sys.getfilesystemencoding()
        if fsencoding is None:
            # This is very unlikely to happen, but if it does, just use UTF-8
            fsencoding = "utf-8"
        return fsencoding


def encode_local(s):
    return s.encode(get_local_encoding(), default_local_errors)


def decode_local(bs):
    return bs.decode(get_local_encoding(), default_local_errors)