~bzr-pqm/bzr/bzr.dev

# Copyright (C) 2005, 2006, 2007 Canonical Ltd

#

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 2 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

from bzrlib import cache_utf8, inventory, errors, xml5

class Serializer_v6(xml5.Serializer_v5):

    format_num = '6'

    def _append_inventory_root(self, append, inv):

        """Append the inventory root to output."""

        append('<inventory')

        append(' format="%s"' % self.format_num)

        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 != self.format_num:

            raise errors.UnexpectedInventoryFormat('Invalid format version %r'

                                                   % format)

        revision_id = elt.get('revision_id')

        if revision_id is not None:

            revision_id = cache_utf8.encode(revision_id)

        inv = inventory.Inventory(root_id=None, revision_id=revision_id)

        for e in elt:

            ie = self._unpack_entry(e)

            inv.add(ie)

        return inv

serializer_v6 = Serializer_v6()