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"""Inventory/revision serialization."""
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from .. import errors, registry
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class BadInventoryFormat(errors.BzrError):
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_fmt = "Root class for inventory serialization errors"
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class UnexpectedInventoryFormat(BadInventoryFormat):
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_fmt = "The inventory was not in the expected format:\n %(msg)s"
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def __init__(self, msg):
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BadInventoryFormat.__init__(self, msg=msg)
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class UnsupportedInventoryKind(errors.BzrError):
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_fmt = """Unsupported entry kind %(kind)s"""
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def __init__(self, kind):
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from __future__ import absolute_import
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from bzrlib import registry
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class Serializer(object):
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raise NotImplementedError(self.write_inventory)
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def write_inventory_to_chunks(self, inv):
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"""Produce a simple bytestring chunk representation of an inventory.
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Note: this is a *whole inventory* operation, and should only be used
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sparingly, as it does not scale well with large trees.
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The requirement for the contents of the string is that it can be passed
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to read_inventory_from_lines and the result is an identical inventory
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raise NotImplementedError(self.write_inventory_to_chunks)
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def write_inventory_to_lines(self, inv):
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"""Produce a simple lines representation of an inventory.
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Note: this is a *whole inventory* operation, and should only be used
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sparingly, as it does not scale well with large trees.
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The requirement for the contents of the string is that it can be passed
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to read_inventory_from_lines and the result is an identical inventory
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raise NotImplementedError(self.write_inventory_to_lines)
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def read_inventory_from_lines(self, lines, revision_id=None,
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entry_cache=None, return_from_cache=False):
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"""Read bytestring chunks into an inventory object.
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:param lines: The serialized inventory to read.
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def write_inventory_to_string(self, inv):
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"""Produce a simple string representation of an inventory.
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Note: this is a *whole inventory* operation, and should only be used
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sparingly, as it does not scale well with large trees.
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The requirement for the contents of the string is that it can be passed
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to read_inventory_from_string and the result is an identical inventory
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(All serializers as of 2009-07-29 produce XML, but this is not mandated
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raise NotImplementedError(self.write_inventory_to_string)
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def read_inventory_from_string(self, string, revision_id=None,
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entry_cache=None, return_from_cache=False):
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"""Read string into an inventory object.
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:param string: The serialized inventory to read.
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:param revision_id: If not-None, the expected revision id of the
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inventory. Some serialisers use this to set the results' root
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revision. This should be supplied for deserialising all
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promises not to mutate the returned inventory entries, but it can
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make some operations significantly faster.
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raise NotImplementedError(self.read_inventory_from_lines)
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raise NotImplementedError(self.read_inventory_from_string)
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def read_inventory(self, f, revision_id=None):
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"""See read_inventory_from_lines."""
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"""See read_inventory_from_string."""
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raise NotImplementedError(self.read_inventory)
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def write_revision(self, rev, f):
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raise NotImplementedError(self.write_revision)
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def write_revision_to_string(self, rev):
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raise NotImplementedError(self.write_revision_to_string)
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def write_revision_to_lines(self, rev):
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raise NotImplementedError(self.write_revision_to_lines)
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def read_revision(self, f):
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raise NotImplementedError(self.read_revision)
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format_registry = SerializerRegistry()
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format_registry.register_lazy('5', 'breezy.bzr.xml5', 'serializer_v5')
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format_registry.register_lazy('6', 'breezy.bzr.xml6', 'serializer_v6')
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format_registry.register_lazy('7', 'breezy.bzr.xml7', 'serializer_v7')
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format_registry.register_lazy('8', 'breezy.bzr.xml8', 'serializer_v8')
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format_registry.register_lazy('9', 'breezy.bzr.chk_serializer',
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'chk_serializer_255_bigpage')
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format_registry.register_lazy('10', 'breezy.bzr.chk_serializer',
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'chk_bencode_serializer')
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format_registry.register_lazy('5', 'bzrlib.xml5', 'serializer_v5')
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format_registry.register_lazy('6', 'bzrlib.xml6', 'serializer_v6')
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format_registry.register_lazy('7', 'bzrlib.xml7', 'serializer_v7')
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format_registry.register_lazy('8', 'bzrlib.xml8', 'serializer_v8')
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format_registry.register_lazy('9', 'bzrlib.chk_serializer',
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'chk_serializer_255_bigpage')
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format_registry.register_lazy('10', 'bzrlib.chk_serializer',
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'chk_bencode_serializer')