1
# Copyright (C) 2005, 2006, 2007 Canonical Ltd
3
# This program is free software; you can redistribute it and/or modify
4
# it under the terms of the GNU General Public License as published by
5
# the Free Software Foundation; either version 2 of the License, or
6
# (at your option) any later version.
8
# This program is distributed in the hope that it will be useful,
9
# but WITHOUT ANY WARRANTY; without even the implied warranty of
10
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11
# GNU General Public License for more details.
13
# You should have received a copy of the GNU General Public License
14
# along with this program; if not, write to the Free Software
15
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17
from bzrlib import cache_utf8, inventory, errors, xml5
20
class Serializer_v6(xml5.Serializer_v5):
21
"""This serialiser adds rich roots."""
26
def _append_inventory_root(self, append, inv):
27
"""Append the inventory root to output."""
28
if inv.revision_id is not None:
29
revid1 = ' revision_id="'
30
revid2 = xml5._encode_and_escape(inv.revision_id)
34
append('<inventory format="%s"%s%s>\n' % (
35
self.format_num, revid1, revid2))
36
append('<directory file_id="%s name="%s revision="%s />\n' % (
37
xml5._encode_and_escape(inv.root.file_id),
38
xml5._encode_and_escape(inv.root.name),
39
xml5._encode_and_escape(inv.root.revision)))
41
def _check_revisions(self, inv):
42
"""Extension point for subclasses to check during serialisation.
44
By default no checking is done.
46
:param inv: An inventory about to be serialised, to be checked.
47
:raises: AssertionError if an error has occured.
49
assert inv.revision_id is not None
50
assert inv.root.revision is not None
52
def _unpack_inventory(self, elt, revision_id=None):
53
"""Construct from XML Element"""
54
if elt.tag != 'inventory':
55
raise errors.UnexpectedInventoryFormat('Root tag is %r' % elt.tag)
56
format = elt.get('format')
57
if format != self.format_num:
58
raise errors.UnexpectedInventoryFormat('Invalid format version %r'
60
revision_id = elt.get('revision_id')
61
if revision_id is not None:
62
revision_id = cache_utf8.encode(revision_id)
63
inv = inventory.Inventory(root_id=None, revision_id=revision_id)
65
ie = self._unpack_entry(e)
67
assert inv.root.revision is not None
71
serializer_v6 = Serializer_v6()