##// END OF EJS Templates
interfaces: add a Protocol class for `scmutil.status`...
interfaces: add a Protocol class for `scmutil.status` I initially tried moving this to the `interfaces` package, both to have more cleanly defined interfaces (interfaces shouldn't have to reach into implementation files for their type info), and because importing `mercurial.ui` either directly or indirectly into `interfaces.repository` causes a situation where pytype stops inferring the type for `revlogutils.constants` that are imported by `revlog`. (Likely this is caused by a cycle. The `dirstate` interface already imports `scmutil`, which in turn imports `ui`, so the `repository` interface module importing the `dirstate` interface module as part of converting those classes to Protocol classes will trigger the issue.) I gave up on moving the class because `scmutil.status` depends on `stringutil`, which has a surprisingly long tail of dependencies. In any event, a standalone Protocol class might help with the Rust code.

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__init__.py
91 lines | 2.4 KiB | text/x-python | PythonLexer
# mercurial.revlogutils -- basic utilities for revlog
#
# Copyright 2019 Pierre-Yves David <pierre-yves.david@octobus.net>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
from __future__ import annotations
import typing
from ..thirdparty import attr
# Force pytype to use the non-vendored package
if typing.TYPE_CHECKING:
# noinspection PyPackageRequirements
import attr
from ..interfaces import repository
# See mercurial.revlogutils.constants for doc
COMP_MODE_INLINE = 2
RANK_UNKNOWN = -1
def offset_type(offset, type):
if (type & ~repository.REVISION_FLAGS_KNOWN) != 0:
raise ValueError(b'unknown revlog index flags: %d' % type)
return int(int(offset) << 16 | type)
def entry(
data_offset,
data_compressed_length,
data_delta_base,
link_rev,
parent_rev_1,
parent_rev_2,
node_id,
flags=0,
data_uncompressed_length=-1,
data_compression_mode=COMP_MODE_INLINE,
sidedata_offset=0,
sidedata_compressed_length=0,
sidedata_compression_mode=COMP_MODE_INLINE,
rank=RANK_UNKNOWN,
):
"""Build one entry from symbolic name
This is useful to abstract the actual detail of how we build the entry
tuple for caller who don't care about it.
This should always be called using keyword arguments. Some arguments have
default value, this match the value used by index version that does not store such data.
"""
return (
offset_type(data_offset, flags),
data_compressed_length,
data_uncompressed_length,
data_delta_base,
link_rev,
parent_rev_1,
parent_rev_2,
node_id,
sidedata_offset,
sidedata_compressed_length,
data_compression_mode,
sidedata_compression_mode,
rank,
)
@attr.s(slots=True, frozen=True)
class revisioninfo:
"""Information about a revision that allows building its fulltext
node: expected hash of the revision
p1, p2: parent revs of the revision (as node)
btext: built text cache consisting of a one-element list
cachedelta: (baserev, uncompressed_delta, usage_mode) or None
flags: flags associated to the revision storage
One of btext[0] or cachedelta must be set.
"""
node = attr.ib()
p1 = attr.ib()
p2 = attr.ib()
btext = attr.ib()
textlen = attr.ib()
cachedelta = attr.ib()
flags = attr.ib()