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Viewing changes to bzrlib/xml5.py

  • Committer: Robert Collins
  • Date: 2005-10-03 05:54:35 UTC
  • mto: (1393.1.30)
  • mto: This revision was merged to the branch mainline in revision 1400.
  • Revision ID: robertc@robertcollins.net-20051003055434-c8ebd30d1de10247
move exporting functionality into inventory.py - uncovers bug in symlink support

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bzrlib/xml5.py
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from bzrlib.xml import ElementTree, SubElement, Element, Serializer
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from bzrlib.inventory import ROOT_ID, Inventory, InventoryEntry
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import bzrlib.inventory as inventory
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from bzrlib.revision import Revision        
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from bzrlib.errors import BzrError
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class Serializer_v5(Serializer):
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    """Version 5 serializer
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    def _pack_inventory(self, inv):
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        """Convert to XML Element"""
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        e = Element('inventory',
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                    format='5')
 
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        e = Element('inventory')
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        e.text = '\n'
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        if inv.root.file_id not in (None, ROOT_ID):
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            e.set('file_id', inv.root.file_id)
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                       timestamp = '%.9f' % rev.timestamp,
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                       revision_id = rev.revision_id,
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                       inventory_sha1 = rev.inventory_sha1,
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                       format='5',
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                       )
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        if rev.timezone:
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            root.set('timezone', str(rev.timezone))
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        root.text = '\n'
 
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        msg = SubElement(root, 'message')
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        msg.text = rev.message
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        msg.tail = '\n'
 
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        if rev.parent_ids:
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            pelts = SubElement(root, 'parents')
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            pelts.tail = pelts.text = '\n'
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                p = SubElement(pelts, 'revision_ref')
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                p.tail = '\n'
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                p.set('revision_id', parent_id)
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        if rev.properties:
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            self._pack_revision_properties(rev, root)
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        return root
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    def _pack_revision_properties(self, rev, under_element):
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        top_elt = SubElement(under_element, 'properties')
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        for prop_name, prop_value in sorted(rev.properties.items()):
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            assert isinstance(prop_name, basestring) 
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            assert isinstance(prop_value, basestring) 
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            prop_elt = SubElement(top_elt, 'property')
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            prop_elt.set('name', prop_name)
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            prop_elt.text = prop_value
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            prop_elt.tail = '\n'
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        top_elt.tail = '\n'
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    def _unpack_inventory(self, elt):
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        """Construct from XML Element
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        """
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        assert elt.tag == 'inventory'
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        root_id = elt.get('file_id') or ROOT_ID
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        format = elt.get('format')
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        if format is not None:
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            if format != '5':
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                raise BzrError("invalid format version %r on inventory"
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                                % format)
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        inv = Inventory(root_id)
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        for e in elt:
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            ie = self._unpack_entry(e)
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        if parent_id == None:
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            parent_id = ROOT_ID
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        if kind == 'directory':
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            ie = inventory.InventoryDirectory(elt.get('file_id'),
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                                              elt.get('name'),
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                                              parent_id)
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        elif kind == 'file':
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            ie = inventory.InventoryFile(elt.get('file_id'),
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                                         elt.get('name'),
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                                         parent_id)
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            ie.text_sha1 = elt.get('text_sha1')
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            if elt.get('executable') == 'yes':
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                ie.executable = True
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            v = elt.get('text_size')
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            ie.text_size = v and int(v)
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        elif kind == 'symlink':
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            ie = inventory.InventoryLink(elt.get('file_id'),
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                                         elt.get('name'),
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                                         parent_id)
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            ie.symlink_target = elt.get('symlink_target')
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        else:
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            raise BzrError("unknown kind %r" % kind)
 
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        ie = InventoryEntry(elt.get('file_id'),
 
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                            elt.get('name'),
 
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                            kind,
 
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                            parent_id)
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        ie.revision = elt.get('revision')
 
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        ie.text_sha1 = elt.get('text_sha1')
 
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        ie.symlink_target = elt.get('symlink_target')
 
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        if elt.get('executable') == 'yes':
 
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            ie.executable = True
 
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        v = elt.get('text_size')
 
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        ie.text_size = v and int(v)
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        return ie
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    def _unpack_revision(self, elt):
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        """XML Element -> Revision object"""
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        assert elt.tag == 'revision'
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        format = elt.get('format')
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        if format is not None:
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            if format != '5':
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                raise BzrError("invalid format version %r on inventory"
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                                % format)
 
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        rev = Revision(committer = elt.get('committer'),
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                       timestamp = float(elt.get('timestamp')),
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                       revision_id = elt.get('revision_id'),
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                       inventory_sha1 = elt.get('inventory_sha1')
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                       )
 
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        parents = elt.find('parents') or []
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        for p in parents:
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            assert p.tag == 'revision_ref', \
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                   "bad parent node tag %r" % p.tag
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            rev.parent_ids.append(p.get('revision_id'))
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        self._unpack_revision_properties(elt, rev)
 
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        v = elt.get('timezone')
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        rev.timezone = v and int(v)
 
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        rev.message = elt.findtext('message') # text of <message>
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        return rev
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    def _unpack_revision_properties(self, elt, rev):
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        """Unpack properties onto a revision."""
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        props_elt = elt.find('properties')
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        assert len(rev.properties) == 0
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        if not props_elt:
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            return
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        for prop_elt in props_elt:
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            assert prop_elt.tag == 'property', \
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                "bad tag under properties list: %r" % p.tag
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            name = prop_elt.get('name')
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            value = prop_elt.text
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            assert name not in rev.properties, \
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                "repeated property %r" % p.name
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            rev.properties[name] = value
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serializer_v5 = Serializer_v5()