def _firstlevel(self):
if self._pre_root:
return self._pre_root
sourceindex = set(self.sources)
kupfer_sources = sources.SourcesSource(self.sources)
sourceindex.add(kupfer_sources)
# Make sure firstlevel is ordered
# So that it keeps the ordering.. SourcesSource first
firstlevel = []
firstlevel.append(sources.SourcesSource(sourceindex))
firstlevel.extend(set(self.toplevel_sources))
self._pre_root = firstlevel
return firstlevel
def decorate_object(self, obj, action=None): if hasattr(obj, "has_content"): types = tuple(action.object_types()) if action else () contents = list(self.get_contents_for_leaf(obj, types)) content = contents[0] if contents else None if len(contents) > 1: content = sources.SourcesSource(contents, name=unicode(obj), use_reprs=False) obj.add_content(content)
def root_for_types(self, types): """ Get root for a flat catalog of all catalogs providing at least Leaves of @types Take all sources which: Provide a type T so that it is a subclass to one in the set of types we want """ types = tuple(types) firstlevel = set() # include the Catalog index since we want to include # the top of the catalogs (like $HOME) catalog_index = (sources.SourcesSource(self.sources), ) for s in itertools.chain(self.sources, catalog_index): if self.good_source_for_types(s, types): firstlevel.add(s) return sources.MultiSource(firstlevel)