return render('changeset/changeset.html')

    def raw_changeset(self, revision):

        hg_model = HgModel()

        method = request.GET.get('diff', 'show')

        try:

            r = hg_model.get_repo(c.repo_name)

            c.scm_type = r.alias

            c.changeset = r.get_changeset(revision)

        except RepositoryError:

            log.error(traceback.format_exc())

            return redirect(url('home'))

        else:

            try:

                c.changeset_old = c.changeset.parents[0]

            except IndexError:

                c.changeset_old = None

            c.changes = []

            for node in c.changeset.added:

                filenode_old = FileNode(node.path, '')

                if filenode_old.is_binary or node.is_binary:

                else:

                    f_udiff = differ.get_udiff(filenode_old, node)

                    diff = differ.DiffProcessor(f_udiff).raw_diff()

                cs1 = None

                cs2 = node.last_changeset.raw_id

                c.changes.append(('added', node, diff, cs1, cs2))

            for node in c.changeset.changed:

                filenode_old = c.changeset_old.get_node(node.path)

                if filenode_old.is_binary or node.is_binary:

                    diff = _('binary file')

                else:

                    f_udiff = differ.get_udiff(filenode_old, node)

                    diff = differ.DiffProcessor(f_udiff).raw_diff()

                cs1 = filenode_old.last_changeset.raw_id

                cs2 = node.last_changeset.raw_id

                c.changes.append(('changed', node, diff, cs1, cs2))

        response.content_type = 'text/plain'

        if method == 'download':

            response.content_disposition = 'attachment; filename=%s.patch' % revision

        parent = True if len(c.changeset.parents) > 0 else False

        c.parent_tmpl = 'Parent  %s' % c.changeset.parents[0].raw_id if parent else ''

        c.diffs = ''

        for x in c.changes:

            c.diffs += x[2]

        return render('changeset/raw_changeset.html')