1
# Copyright (C) 2005-2010 Canonical Ltd
1
# Copyright (C) 2005, 2006 Canonical Ltd
3
3
# This program is free software; you can redistribute it and/or modify
4
4
# it under the terms of the GNU General Public License as published by
13
13
# You should have received a copy of the GNU General Public License
14
14
# along with this program; if not, write to the Free Software
15
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17
from __future__ import absolute_import
19
from bzrlib.xml_serializer import (
25
from bzrlib.inventory import ROOT_ID, Inventory
15
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17
from bzrlib.xml_serializer import ElementTree, SubElement, Element, Serializer
18
from bzrlib.inventory import ROOT_ID, Inventory, InventoryEntry
26
19
import bzrlib.inventory as inventory
27
20
from bzrlib.revision import Revision
28
21
from bzrlib.errors import BzrError
31
class _Serializer_v4(XMLSerializer):
24
class _Serializer_v4(Serializer):
32
25
"""Version 0.0.4 serializer
34
27
You should use the serializer_v4 singleton.
36
29
v4 serialisation is no longer supported, only deserialisation.
41
34
def _pack_entry(self, ie):
42
35
"""Convert InventoryEntry to XML element"""
43
36
e = Element('entry')
57
50
# for now, leaving them as null in the xml form. in a future
58
51
# version it will be implied by nested elements.
59
52
if ie.parent_id != ROOT_ID:
53
assert isinstance(ie.parent_id, basestring)
60
54
e.set('parent_id', ie.parent_id)
67
def _unpack_inventory(self, elt, revision_id=None, entry_cache=None,
68
return_from_cache=False):
61
def _unpack_inventory(self, elt, revision_id=None):
69
62
"""Construct from XML Element
71
64
:param revision_id: Ignored parameter used by xml5.
66
assert elt.tag == 'inventory'
73
67
root_id = elt.get('file_id') or ROOT_ID
74
68
inv = Inventory(root_id)
76
ie = self._unpack_entry(e, entry_cache=entry_cache,
77
return_from_cache=return_from_cache)
70
ie = self._unpack_entry(e)
78
71
if ie.parent_id == ROOT_ID:
79
72
ie.parent_id = root_id
84
def _unpack_entry(self, elt, entry_cache=None, return_from_cache=False):
77
def _unpack_entry(self, elt):
78
assert elt.tag == 'entry'
85
80
## original format inventories don't have a parent_id for
86
81
## nodes in the root directory, but it's cleaner to use one
138
133
for i, parent_id in enumerate(rev.parents):
139
134
p = SubElement(pelts, 'revision_ref')
141
137
p.set('revision_id', parent_id)
142
138
if i < len(rev.parent_sha1s):
143
139
p.set('revision_sha1', rev.parent_sha1s[i])
147
143
def _unpack_revision(self, elt):
148
144
"""XML Element -> Revision object"""
150
146
# <changeset> is deprecated...
151
147
if elt.tag not in ('revision', 'changeset'):
152
148
raise BzrError("unexpected tag in revision file: %r" % elt)
164
assert p.tag == 'revision_ref', \
165
"bad parent node tag %r" % p.tag
168
166
rev.parent_ids.append(p.get('revision_id'))
169
167
rev.parent_sha1s.append(p.get('revision_sha1'))
171
169
# must be consistent
172
170
prec_parent = rev.parent_ids[0]
171
assert prec_parent == precursor
174
173
# revisions written prior to 0.0.5 have a single precursor
175
174
# give as an attribute