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return self.read_revision_from_string(f.read())
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class CHKSerializerSubtree(BEncodeRevisionSerializer1, xml7.Serializer_v7):
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"""A CHKInventory based serializer that supports tree references"""
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class CHKSerializer(serializer.Serializer):
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"""A CHKInventory based serializer with 'plain' behaviour."""
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revision_format_num = None
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support_altered_by_hack = False
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supported_kinds = set(['file', 'directory', 'symlink', 'tree-reference'])
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revision_format_num = None
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support_altered_by_hack = False
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def _unpack_entry(self, elt, entry_cache=None, return_from_cache=False):
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if not kind in self.supported_kinds:
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raise AssertionError('unsupported entry kind %s' % kind)
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if kind == 'tree-reference':
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file_id = elt.attrib['file_id']
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name = elt.attrib['name']
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parent_id = elt.attrib['parent_id']
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revision = elt.get('revision')
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reference_revision = elt.get('reference_revision')
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return inventory.TreeReference(file_id, name, parent_id, revision,
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def __init__(self, node_size, search_key_name):
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self.maximum_size = node_size
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self.search_key_name = search_key_name
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def _unpack_inventory(self, elt, revision_id=None, entry_cache=None,
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return_from_cache=False):
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"""Construct from XML Element"""
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inv = xml_serializer.unpack_inventory_flat(elt, self.format_num,
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xml_serializer.unpack_inventory_entry, entry_cache,
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def read_inventory_from_string(self, xml_string, revision_id=None,
165
entry_cache=None, return_from_cache=False):
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"""Read xml_string into an inventory object.
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:param xml_string: The xml to read.
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:param revision_id: If not-None, the expected revision id of the
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:param entry_cache: An optional cache of InventoryEntry objects. If
172
supplied we will look up entries via (file_id, revision_id) which
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should map to a valid InventoryEntry (File/Directory/etc) object.
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:param return_from_cache: Return entries directly from the cache,
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rather than copying them first. This is only safe if the caller
176
promises not to mutate the returned inventory entries, but it can
177
make some operations significantly faster.
180
return self._unpack_inventory(
181
xml_serializer.fromstring(xml_string), revision_id,
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entry_cache=entry_cache,
183
return_from_cache=return_from_cache)
184
except xml_serializer.ParseError, e:
185
raise errors.UnexpectedInventoryFormat(e)
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def read_inventory(self, f, revision_id=None):
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"""Read an inventory from a file-like object."""
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return self._unpack_inventory(self._read_element(f),
195
except xml_serializer.ParseError, e:
196
raise errors.UnexpectedInventoryFormat(e)
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def write_inventory_to_lines(self, inv):
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"""Return a list of lines with the encoded inventory."""
200
return self.write_inventory(inv, None)
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def write_inventory_to_string(self, inv, working=False):
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"""Just call write_inventory with a StringIO and return the value.
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:param working: If True skip history data - text_sha1, text_size,
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reference_revision, symlink_target.
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self.write_inventory(inv, sio, working)
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return sio.getvalue()
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def write_inventory(self, inv, f, working=False):
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"""Write inventory to a file.
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:param inv: the inventory to write.
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:param f: the file to write. (May be None if the lines are the desired
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:param working: If True skip history data - text_sha1, text_size,
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reference_revision, symlink_target.
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:return: The inventory as a list of lines.
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append = output.append
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if inv.revision_id is not None:
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revid1 = ' revision_id="'
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revid2 = xml_serializer.encode_and_escape(inv.revision_id)
155
return xml7.Serializer_v7._unpack_entry(self, elt,
156
entry_cache=entry_cache, return_from_cache=return_from_cache)
158
def __init__(self, node_size, search_key_name):
159
self.maximum_size = node_size
160
self.search_key_name = search_key_name
163
class CHKSerializer(xml6.Serializer_v6):
164
"""A CHKInventory based serializer with 'plain' behaviour."""
167
revision_format_num = None
168
support_altered_by_hack = False
170
def __init__(self, node_size, search_key_name):
171
self.maximum_size = node_size
172
self.search_key_name = search_key_name
230
append('<inventory format="%s"%s%s>\n' % (
231
self.format_num, revid1, revid2))
232
append('<directory file_id="%s name="%s revision="%s />\n' % (
233
xml_serializer.encode_and_escape(inv.root.file_id),
234
xml_serializer.encode_and_escape(inv.root.name),
235
xml_serializer.encode_and_escape(inv.root.revision)))
236
xml_serializer.serialize_inventory_flat(inv,
238
root_id=None, supported_kinds=self.supported_kinds,
175
245
chk_serializer_255_bigpage = CHKSerializer(65536, 'hash-255-way')