/brz/remove-bazaar

To get this branch, use:
bzr branch http://gegoxaren.bato24.eu/bzr/brz/remove-bazaar

« back to all changes in this revision

Viewing changes to breezy/plugins/weave_fmt/xml4.py

  • Committer: Jelmer Vernooij
  • Date: 2020-05-24 00:39:50 UTC
  • mto: This revision was merged to the branch mainline in revision 7504.
  • Revision ID: jelmer@jelmer.uk-20200524003950-bbc545r76vc5yajg
Add github action.

Show diffs side-by-side

added added

removed removed

Lines of Context:
breezy/plugins/weave_fmt/xml4.py
 
1
# Copyright (C) 2005-2010 Canonical Ltd
 
2
#
 
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.
 
7
#
 
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.
 
12
#
 
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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 
16
 
 
17
from ...bzr.xml_serializer import (
 
18
    Element,
 
19
    SubElement,
 
20
    XMLSerializer,
 
21
    escape_invalid_chars,
 
22
    )
 
23
from ...bzr.inventory import ROOT_ID, Inventory
 
24
from ...bzr import inventory
 
25
from ...revision import Revision
 
26
from ...errors import BzrError
 
27
 
 
28
 
 
29
class _Serializer_v4(XMLSerializer):
 
30
    """Version 0.0.4 serializer
 
31
 
 
32
    You should use the serializer_v4 singleton.
 
33
 
 
34
    v4 serialisation is no longer supported, only deserialisation.
 
35
    """
 
36
 
 
37
    __slots__ = []
 
38
 
 
39
    def _pack_entry(self, ie):
 
40
        """Convert InventoryEntry to XML element"""
 
41
        e = Element('entry')
 
42
        e.set('name', ie.name)
 
43
        e.set('file_id', ie.file_id.decode('ascii'))
 
44
        e.set('kind', ie.kind)
 
45
 
 
46
        if ie.text_size is not None:
 
47
            e.set('text_size', '%d' % ie.text_size)
 
48
 
 
49
        for f in ['text_id', 'text_sha1', 'symlink_target']:
 
50
            v = getattr(ie, f)
 
51
            if v is not None:
 
52
                e.set(f, v)
 
53
 
 
54
        # to be conservative, we don't externalize the root pointers
 
55
        # for now, leaving them as null in the xml form.  in a future
 
56
        # version it will be implied by nested elements.
 
57
        if ie.parent_id != ROOT_ID:
 
58
            e.set('parent_id', ie.parent_id)
 
59
 
 
60
        e.tail = '\n'
 
61
 
 
62
        return e
 
63
 
 
64
    def _unpack_inventory(self, elt, revision_id=None, entry_cache=None,
 
65
                          return_from_cache=False):
 
66
        """Construct from XML Element
 
67
 
 
68
        :param revision_id: Ignored parameter used by xml5.
 
69
        """
 
70
        root_id = elt.get('file_id')
 
71
        root_id = (root_id.encode('ascii') if root_id else ROOT_ID)
 
72
        inv = Inventory(root_id)
 
73
        for e in elt:
 
74
            ie = self._unpack_entry(e, entry_cache=entry_cache,
 
75
                                    return_from_cache=return_from_cache)
 
76
            if ie.parent_id == ROOT_ID:
 
77
                ie.parent_id = root_id
 
78
            inv.add(ie)
 
79
        return inv
 
80
 
 
81
    def _unpack_entry(self, elt, entry_cache=None, return_from_cache=False):
 
82
        # original format inventories don't have a parent_id for
 
83
        # nodes in the root directory, but it's cleaner to use one
 
84
        # internally.
 
85
        parent_id = elt.get('parent_id')
 
86
        parent_id = (parent_id.encode('ascii') if parent_id else ROOT_ID)
 
87
 
 
88
        file_id = elt.get('file_id').encode('ascii')
 
89
        kind = elt.get('kind')
 
90
        if kind == 'directory':
 
91
            ie = inventory.InventoryDirectory(file_id,
 
92
                                              elt.get('name'),
 
93
                                              parent_id)
 
94
        elif kind == 'file':
 
95
            ie = inventory.InventoryFile(file_id,
 
96
                                         elt.get('name'),
 
97
                                         parent_id)
 
98
            ie.text_id = elt.get('text_id')
 
99
            if ie.text_id is not None:
 
100
                ie.text_id = ie.text_id.encode('utf-8')
 
101
            ie.text_sha1 = elt.get('text_sha1')
 
102
            if ie.text_sha1 is not None:
 
103
                ie.text_sha1 = ie.text_sha1.encode('ascii')
 
104
            v = elt.get('text_size')
 
105
            ie.text_size = v and int(v)
 
106
        elif kind == 'symlink':
 
107
            ie = inventory.InventoryLink(file_id,
 
108
                                         elt.get('name'),
 
109
                                         parent_id)
 
110
            ie.symlink_target = elt.get('symlink_target')
 
111
        else:
 
112
            raise BzrError("unknown kind %r" % kind)
 
113
 
 
114
        ## mutter("read inventoryentry: %r", elt.attrib)
 
115
 
 
116
        return ie
 
117
 
 
118
    def _pack_revision(self, rev):
 
119
        """Revision object -> xml tree"""
 
120
        root = Element('revision',
 
121
                       committer=rev.committer,
 
122
                       timestamp='%.9f' % rev.timestamp,
 
123
                       revision_id=rev.revision_id,
 
124
                       inventory_id=rev.inventory_id,
 
125
                       inventory_sha1=rev.inventory_sha1,
 
126
                       )
 
127
        if rev.timezone:
 
128
            root.set('timezone', str(rev.timezone))
 
129
        root.text = '\n'
 
130
 
 
131
        msg = SubElement(root, 'message')
 
132
        msg.text = escape_invalid_chars(rev.message)[0]
 
133
        msg.tail = '\n'
 
134
 
 
135
        if rev.parents:
 
136
            pelts = SubElement(root, 'parents')
 
137
            pelts.tail = pelts.text = '\n'
 
138
            for i, parent_id in enumerate(rev.parents):
 
139
                p = SubElement(pelts, 'revision_ref')
 
140
                p.tail = '\n'
 
141
                p.set('revision_id', parent_id)
 
142
                if i < len(rev.parent_sha1s):
 
143
                    p.set('revision_sha1', rev.parent_sha1s[i])
 
144
        return root
 
145
 
 
146
    def write_revision_to_string(self, rev):
 
147
        return tostring(self._pack_revision(rev)) + b'\n'
 
148
 
 
149
    def _write_element(self, elt, f):
 
150
        ElementTree(elt).write(f, 'utf-8')
 
151
        f.write(b'\n')
 
152
 
 
153
    def _unpack_revision(self, elt):
 
154
        """XML Element -> Revision object"""
 
155
 
 
156
        # <changeset> is deprecated...
 
157
        if elt.tag not in ('revision', 'changeset'):
 
158
            raise BzrError("unexpected tag in revision file: %r" % elt)
 
159
 
 
160
        rev = Revision(committer=elt.get('committer'),
 
161
                       timestamp=float(elt.get('timestamp')),
 
162
                       revision_id=elt.get('revision_id'),
 
163
                       inventory_id=elt.get('inventory_id'),
 
164
                       inventory_sha1=elt.get('inventory_sha1')
 
165
                       )
 
166
 
 
167
        precursor = elt.get('precursor')
 
168
        precursor_sha1 = elt.get('precursor_sha1')
 
169
 
 
170
        pelts = elt.find('parents')
 
171
 
 
172
        if pelts:
 
173
            for p in pelts:
 
174
                rev.parent_ids.append(p.get('revision_id'))
 
175
                rev.parent_sha1s.append(p.get('revision_sha1'))
 
176
            if precursor:
 
177
                # must be consistent
 
178
                prec_parent = rev.parent_ids[0]
 
179
        elif precursor:
 
180
            # revisions written prior to 0.0.5 have a single precursor
 
181
            # give as an attribute
 
182
            rev.parent_ids.append(precursor)
 
183
            rev.parent_sha1s.append(precursor_sha1)
 
184
 
 
185
        v = elt.get('timezone')
 
186
        rev.timezone = v and int(v)
 
187
 
 
188
        rev.message = elt.findtext('message')  # text of <message>
 
189
        return rev
 
190
 
 
191
 
 
192
"""singleton instance"""
 
193
serializer_v4 = _Serializer_v4()