def __init__(self):
# load packages configuration
self._packages = BaseConfigFile(CONFIG_PACKAGES)
# load cache database
self._cache = JsonDatabase()
self._cache.load(CACHE_PACKAGES)
# set cache
if set(self._cache.keys()) != set(
("downstream", "compare", "upstream")):
logging.debug("Invalid cache, purging it")
self._cache.clear()
self._cache["upstream"] = {}
self._cache["downstream"] = {}
self._cache["compare"] = {}
