def preBuild(self, site):
        self.ignore_patterns = site.config.get('ignore', [])
Returns the appendix part of a file_name in style ".json-Appendix",
dataset/ETHPy150Open koenbok/Cactus/cactus/plugin/builtin/ignore.py/IgnorePatternsPlugin.preBuild--crossover with--dataset/ETHPy150Open SublimeText/PackageDev/fileconv/loaders.py/LoaderProto.get_ext_appendix