1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
|
# Copyright (C) 2005, 2006 Canonical Ltd
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
from bzrlib.xml_serializer import SubElement, Element, Serializer
from bzrlib.inventory import ROOT_ID, Inventory, InventoryEntry
import bzrlib.inventory as inventory
from bzrlib.revision import Revision
from bzrlib.errors import BzrError
class Serializer_v5(Serializer):
"""Version 5 serializer
Packs objects into XML and vice versa.
"""
__slots__ = []
def _pack_inventory(self, inv):
"""Convert to XML Element"""
e = Element('inventory',
format='5')
e.text = '\n'
if inv.root.file_id not in (None, ROOT_ID):
e.set('file_id', inv.root.file_id)
if inv.revision_id is not None:
e.set('revision_id', inv.revision_id)
for path, ie in inv.iter_entries():
e.append(self._pack_entry(ie))
return e
def _pack_entry(self, ie):
"""Convert InventoryEntry to XML element"""
# TODO: should just be a plain assertion
if not InventoryEntry.versionable_kind(ie.kind):
raise AssertionError('unsupported entry kind %s' % ie.kind)
e = Element(ie.kind)
e.set('name', ie.name)
e.set('file_id', ie.file_id)
if ie.text_size != None:
e.set('text_size', '%d' % ie.text_size)
for f in ['text_sha1', 'revision', 'symlink_target']:
v = getattr(ie, f)
if v != None:
e.set(f, v)
if ie.executable:
e.set('executable', 'yes')
# to be conservative, we don't externalize the root pointers
# for now, leaving them as null in the xml form. in a future
# version it will be implied by nested elements.
if ie.parent_id != ROOT_ID:
assert isinstance(ie.parent_id, basestring)
e.set('parent_id', ie.parent_id)
e.tail = '\n'
return e
def _pack_revision(self, rev):
"""Revision object -> xml tree"""
root = Element('revision',
committer = rev.committer,
timestamp = '%.9f' % rev.timestamp,
revision_id = rev.revision_id,
inventory_sha1 = rev.inventory_sha1,
format='5',
)
if rev.timezone:
root.set('timezone', str(rev.timezone))
root.text = '\n'
msg = SubElement(root, 'message')
msg.text = rev.message
msg.tail = '\n'
if rev.parent_ids:
pelts = SubElement(root, 'parents')
pelts.tail = pelts.text = '\n'
for parent_id in rev.parent_ids:
assert isinstance(parent_id, basestring)
p = SubElement(pelts, 'revision_ref')
p.tail = '\n'
p.set('revision_id', parent_id)
if rev.properties:
self._pack_revision_properties(rev, root)
return root
def _pack_revision_properties(self, rev, under_element):
top_elt = SubElement(under_element, 'properties')
for prop_name, prop_value in sorted(rev.properties.items()):
assert isinstance(prop_name, basestring)
assert isinstance(prop_value, basestring)
prop_elt = SubElement(top_elt, 'property')
prop_elt.set('name', prop_name)
prop_elt.text = prop_value
prop_elt.tail = '\n'
top_elt.tail = '\n'
def _unpack_inventory(self, elt):
"""Construct from XML Element
"""
assert elt.tag == 'inventory'
root_id = elt.get('file_id') or ROOT_ID
format = elt.get('format')
if format is not None:
if format != '5':
raise BzrError("invalid format version %r on inventory"
% format)
revision_id = elt.get('revision_id')
inv = Inventory(root_id, revision_id=revision_id)
for e in elt:
ie = self._unpack_entry(e)
if ie.parent_id == ROOT_ID:
ie.parent_id = root_id
inv.add(ie)
return inv
def _unpack_entry(self, elt):
kind = elt.tag
if not InventoryEntry.versionable_kind(kind):
raise AssertionError('unsupported entry kind %s' % kind)
parent_id = elt.get('parent_id')
if parent_id == None:
parent_id = ROOT_ID
if kind == 'directory':
ie = inventory.InventoryDirectory(elt.get('file_id'),
elt.get('name'),
parent_id)
elif kind == 'file':
ie = inventory.InventoryFile(elt.get('file_id'),
elt.get('name'),
parent_id)
ie.text_sha1 = elt.get('text_sha1')
if elt.get('executable') == 'yes':
ie.executable = True
v = elt.get('text_size')
ie.text_size = v and int(v)
elif kind == 'symlink':
ie = inventory.InventoryLink(elt.get('file_id'),
elt.get('name'),
parent_id)
ie.symlink_target = elt.get('symlink_target')
else:
raise BzrError("unknown kind %r" % kind)
ie.revision = elt.get('revision')
return ie
def _unpack_revision(self, elt):
"""XML Element -> Revision object"""
assert elt.tag == 'revision'
format = elt.get('format')
if format is not None:
if format != '5':
raise BzrError("invalid format version %r on inventory"
% format)
rev = Revision(committer = elt.get('committer'),
timestamp = float(elt.get('timestamp')),
revision_id = elt.get('revision_id'),
inventory_sha1 = elt.get('inventory_sha1')
)
parents = elt.find('parents') or []
for p in parents:
assert p.tag == 'revision_ref', \
"bad parent node tag %r" % p.tag
rev.parent_ids.append(p.get('revision_id'))
self._unpack_revision_properties(elt, rev)
v = elt.get('timezone')
rev.timezone = v and int(v)
rev.message = elt.findtext('message') # text of <message>
return rev
def _unpack_revision_properties(self, elt, rev):
"""Unpack properties onto a revision."""
props_elt = elt.find('properties')
assert len(rev.properties) == 0
if not props_elt:
return
for prop_elt in props_elt:
assert prop_elt.tag == 'property', \
"bad tag under properties list: %r" % prop_elt.tag
name = prop_elt.get('name')
value = prop_elt.text
# If a property had an empty value ('') cElementTree reads
# that back as None, convert it back to '', so that all
# properties have string values
if value is None:
value = ''
assert name not in rev.properties, \
"repeated property %r" % name
rev.properties[name] = value
serializer_v5 = Serializer_v5()
|