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75 lines
3.1 KiB
Python
75 lines
3.1 KiB
Python
# objects.py
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# Copyright (C) 2008, 2009 Michael Trier (mtrier@gmail.com) and contributors
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#
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# This module is part of GitPython and is released under
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# the BSD License: http://www.opensource.org/licenses/bsd-license.php
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""" Module containing all object based types. """
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from . import base
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from .util import get_object_type_by_name, parse_actor_and_date
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from ..util import hex_to_bin
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from ..compat import defenc
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__all__ = ("TagObject", )
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class TagObject(base.Object):
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"""Non-Lightweight tag carrying additional information about an object we are pointing to."""
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type = "tag"
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__slots__ = ("object", "tag", "tagger", "tagged_date", "tagger_tz_offset", "message")
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def __init__(self, repo, binsha, object=None, tag=None, # @ReservedAssignment
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tagger=None, tagged_date=None, tagger_tz_offset=None, message=None):
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"""Initialize a tag object with additional data
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:param repo: repository this object is located in
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:param binsha: 20 byte SHA1
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:param object: Object instance of object we are pointing to
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:param tag: name of this tag
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:param tagger: Actor identifying the tagger
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:param tagged_date: int_seconds_since_epoch
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is the DateTime of the tag creation - use time.gmtime to convert
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it into a different format
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:param tagged_tz_offset: int_seconds_west_of_utc is the timezone that the
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authored_date is in, in a format similar to time.altzone"""
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super(TagObject, self).__init__(repo, binsha)
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if object is not None:
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self.object = object
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if tag is not None:
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self.tag = tag
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if tagger is not None:
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self.tagger = tagger
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if tagged_date is not None:
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self.tagged_date = tagged_date
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if tagger_tz_offset is not None:
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self.tagger_tz_offset = tagger_tz_offset
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if message is not None:
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self.message = message
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def _set_cache_(self, attr):
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"""Cache all our attributes at once"""
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if attr in TagObject.__slots__:
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ostream = self.repo.odb.stream(self.binsha)
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lines = ostream.read().decode(defenc).splitlines()
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obj, hexsha = lines[0].split(" ") # object <hexsha> @UnusedVariable
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type_token, type_name = lines[1].split(" ") # type <type_name> @UnusedVariable
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self.object = \
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get_object_type_by_name(type_name.encode('ascii'))(self.repo, hex_to_bin(hexsha))
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self.tag = lines[2][4:] # tag <tag name>
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tagger_info = lines[3] # tagger <actor> <date>
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self.tagger, self.tagged_date, self.tagger_tz_offset = parse_actor_and_date(tagger_info)
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# line 4 empty - it could mark the beginning of the next header
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# in case there really is no message, it would not exist. Otherwise
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# a newline separates header from message
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if len(lines) > 5:
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self.message = "\n".join(lines[5:])
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else:
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self.message = ''
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# END check our attributes
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else:
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super(TagObject, self)._set_cache_(attr)
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