/brz/remove-bazaar

# 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_v8(xml5.Serializer_v5):

    """This serialiser adds rich roots.

    Its revision format number matches its inventory number.

    """

    format_num = '8'

    root_id = None

    def _append_inventory_root(self, append, inv):

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

        if inv.revision_id is not None:

            revid1 = ' revision_id="'

            revid2 = xml5._encode_and_escape(inv.revision_id)

        else:

            revid1 = ""

            revid2 = ""

        append('<inventory format="%s"%s%s>\n' % (

            self.format_num, revid1, revid2))

        append('<directory file_id="%s name="%s revision="%s />\n' % (

            xml5._encode_and_escape(inv.root.file_id),

            xml5._encode_and_escape(inv.root.name),

            xml5._encode_and_escape(inv.root.revision)))

    def _check_revisions(self, inv):

        """Extension point for subclasses to check during serialisation.

        By default no checking is done.

        :param inv: An inventory about to be serialised, to be checked.

        :raises: AssertionError if an error has occured.

        """

        assert inv.revision_id is not None

        assert inv.root.revision is not None

    def _unpack_inventory(self, elt, revision_id=None):

        """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)

        assert inv.root.revision is not None

        return inv

serializer_v8 = Serializer_v8()