def _unpack_inventory(self, elt, revision_id, entry_cache=None,
return_from_cache=False):
"""Construct from XML Element
"""
root_id = elt.get('file_id') or inventory.ROOT_ID
root_id = get_utf8_or_ascii(root_id)
format = elt.get('format')
if format is not None:
if format != '5':
raise errors.BzrError("invalid format version %r on inventory"
% format)
data_revision_id = elt.get('revision_id')
if data_revision_id is not None:
revision_id = cache_utf8.encode(data_revision_id)
inv = inventory.Inventory(root_id, revision_id=revision_id)
# Optimizations tested
# baseline w/entry cache 2.85s
# using inv._byid 2.55s
# avoiding attributes 2.46s
# adding assertions 2.50s
# last_parent cache 2.52s (worse, removed)
byid = inv._byid
for e in elt:
ie = unpack_inventory_entry(e, entry_cache=entry_cache,
return_from_cache=return_from_cache)
parent_id = ie.parent_id
if parent_id is None:
ie.parent_id = parent_id = root_id
try:
parent = byid[parent_id]
except KeyError:
raise errors.BzrError("parent_id {%s} not in inventory"
% (parent_id,))
if ie.file_id in byid:
raise errors.DuplicateFileId(ie.file_id,
byid[ie.file_id])
if ie.name in parent.children:
raise errors.BzrError("%s is already versioned"
% (osutils.pathjoin(inv.id2path(parent_id),
ie.name).encode('utf-8'),))
parent.children[ie.name] = ie
byid[ie.file_id] = ie
if revision_id is not None:
inv.root.revision = revision_id
self._check_cache_size(len(inv), entry_cache)
return inv
def _unpack_entry(self, elt, entry_cache=None, return_from_cache=False):
# This is here because it's overridden by xml7
return unpack_inventory_entry(elt, entry_cache,
return_from_cache)
