manifest: introduce a `read_delta_parents` method
This new method have a clearer semantic and can be used by code that need this
semantic. This should avoid bugs, allow for more targeted optimisation, and
provide a clearer API. Users will be updated in subsequent changesets.
This is also part of the wider effort to clarify and fix this API. one more
method coming.
# typelib.py - type hint aliases and support
#
# Copyright 2022 Matt Harbison <matt_harbison@yahoo.com>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
import typing
from typing import (
Callable,
)
# Note: this is slightly different from pycompat.TYPE_CHECKING, as using
# pycompat causes the BinaryIO_Proxy type to be resolved to ``object`` when
# used as the base class during a pytype run.
TYPE_CHECKING = typing.TYPE_CHECKING
# The BinaryIO class provides empty methods, which at runtime means that
# ``__getattr__`` on the proxy classes won't get called for the methods that
# should delegate to the internal object. So to avoid runtime changes because
# of the required typing inheritance, just use BinaryIO when typechecking, and
# ``object`` otherwise.
if TYPE_CHECKING:
from typing import (
BinaryIO,
Union,
)
from . import (
node,
posix,
windows,
)
BinaryIO_Proxy = BinaryIO
CacheStat = Union[posix.cachestat, windows.cachestat]
NodeConstants = node.sha1nodeconstants
else:
from typing import Any
BinaryIO_Proxy = object
CacheStat = Any
NodeConstants = Any
# scmutil.getuipathfn() related callback.
UiPathFn = Callable[[bytes], bytes]