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135 lines (106 loc) · 4.26 KB
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# Copyright (C) 2008, 2009 Michael Trier (mtrier@gmail.com) and contributors
#
# This module is part of GitPython and is released under the
# 3-Clause BSD License: https://opensource.org/license/bsd-3-clause/
"""Provides an :class:`~git.objects.base.Object`-based type for annotated tags.
This defines the :class:`TagObject` class, which represents annotated tags.
For lightweight tags, see the :mod:`git.refs.tag` module.
"""
__all__ = ["TagObject"]
from git.compat import defenc
from git.util import Actor, hex_to_bin
from . import base
from .util import get_object_type_by_name, parse_actor_and_date
# typing ----------------------------------------------
from typing import List, Literal, TYPE_CHECKING, Union
from git.types import AnyGitObject
if TYPE_CHECKING:
from git.repo import Repo
from .blob import Blob
from .commit import Commit
from .tree import Tree
# ---------------------------------------------------
class TagObject(base.Object):
"""Annotated (i.e. non-lightweight) tag carrying additional information about an
object we are pointing to.
See :manpage:`gitglossary(7)` on "tag object":
https://git-scm.com/docs/gitglossary#def_tag_object
"""
type: Literal["tag"] = "tag"
__slots__ = (
"object",
"tag",
"tagger",
"tagged_date",
"tagger_tz_offset",
"message",
)
def __init__(
self,
repo: "Repo",
binsha: bytes,
object: Union[None, AnyGitObject] = None,
tag: Union[None, str] = None,
tagger: Union[None, Actor] = None,
tagged_date: Union[int, None] = None,
tagger_tz_offset: Union[int, None] = None,
message: Union[str, None] = None,
) -> None: # @ReservedAssignment
"""Initialize a tag object with additional data.
:param repo:
Repository this object is located in.
:param binsha:
20 byte SHA1.
:param object:
:class:`~git.objects.base.Object` instance of object we are pointing to.
:param tag:
Name of this tag.
:param tagger:
:class:`~git.util.Actor` identifying the tagger.
:param tagged_date: int_seconds_since_epoch
The DateTime of the tag creation.
Use :func:`time.gmtime` to convert it into a different format.
:param tagger_tz_offset: int_seconds_west_of_utc
The timezone that the `tagged_date` is in, in a format similar to
:attr:`time.altzone`.
"""
super().__init__(repo, binsha)
if object is not None:
self.object: Union["Commit", "Blob", "Tree", "TagObject"] = object
if tag is not None:
self.tag = tag
if tagger is not None:
self.tagger = tagger
if tagged_date is not None:
self.tagged_date = tagged_date
if tagger_tz_offset is not None:
self.tagger_tz_offset = tagger_tz_offset
if message is not None:
self.message = message
def _set_cache_(self, attr: str) -> None:
"""Cache all our attributes at once."""
if attr in TagObject.__slots__:
ostream = self.repo.odb.stream(self.binsha)
lines: List[str] = ostream.read().decode(defenc, "replace").splitlines()
_obj, hexsha = lines[0].split(" ")
_type_token, type_name = lines[1].split(" ")
object_type = get_object_type_by_name(type_name.encode("ascii"))
self.object = object_type(self.repo, hex_to_bin(hexsha))
self.tag = lines[2][4:] # tag <tag name>
if len(lines) > 3:
tagger_info = lines[3] # tagger <actor> <date>
(
self.tagger,
self.tagged_date,
self.tagger_tz_offset,
) = parse_actor_and_date(tagger_info)
# Line 4 empty - it could mark the beginning of the next header.
# In case there really is no message, it would not exist.
# Otherwise a newline separates header from message.
if len(lines) > 5:
self.message = "\n".join(lines[5:])
else:
self.message = ""
# END check our attributes
else:
super()._set_cache_(attr)