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Viewing changes to bzrlib/chk_serializer.py

  • Committer: Aaron Bentley
  • Date: 2009-06-19 21:16:31 UTC
  • mto: This revision was merged to the branch mainline in revision 4481.
  • Revision ID: aaron@aaronbentley.com-20090619211631-4fnkv2uui98xj7ux
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bzrlib/chk_serializer.py
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# Copyright (C) 2008, 2009, 2010 Canonical Ltd
 
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# Copyright (C) 2008 Canonical Ltd
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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"""Serializer object for CHK based inventory storage."""
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from cStringIO import (
 
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    StringIO,
 
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    )
 
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from bzrlib import (
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    bencode,
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    cache_utf8,
 
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    inventory,
 
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    osutils,
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    revision as _mod_revision,
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    xml8,
 
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    xml5,
 
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    xml6,
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    )
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        return self.read_revision_from_string(f.read())
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class CHKSerializer(xml8.Serializer_v8):
 
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class CHKSerializerSubtree(BEncodeRevisionSerializer1, xml6.Serializer_v6):
 
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    """A CHKInventory based serializer that supports tree references"""
 
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    supported_kinds = set(['file', 'directory', 'symlink', 'tree-reference'])
 
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    format_num = '9'
 
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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):
 
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        kind = elt.tag
 
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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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                                           reference_revision)
 
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        else:
 
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            return xml6.Serializer_v6._unpack_entry(self, elt)
 
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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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class CHKSerializer(xml5.Serializer_v5):
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    """A CHKInventory based serializer with 'plain' behaviour."""
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    format_num = '9'