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from bzrlib import cache_utf8, inventory, errors, xml5
class Serializer_v6(xml5.Serializer_v5):
def _append_inventory_root(self, append, inv):
"""Append the inventory root to output."""
append('<inventory')
append(' format="6"')
if inv.revision_id is not None:
append(' revision_id="')
append(xml5._encode_and_escape(inv.revision_id))
append('>\n')
self._append_entry(append, inv.root)
def _parent_condition(self, ie):
return ie.parent_id is not None
def _unpack_inventory(self, elt):
"""Construct from XML Element"""
if elt.tag != 'inventory':
raise errors.UnexpectedInventoryFormat('Root tag is %r' % elt.tag)
format = elt.get('format')
if format != '6':
raise errors.UnexpectedInventoryFormat('Invalid format version %r'
% format)
revision_id = elt.get('revision_id')
if revision_id is not None:
revision_id = cache_utf8.get_cached_unicode(revision_id)
inv = inventory.Inventory(root_id=None, revision_id=revision_id)
for e in elt:
ie = self._unpack_entry(e, none_parents=True)
inv.add(ie)
return inv
serializer_v6 = Serializer_v6()
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