def load_cache()

in tsqa/utils.py [0:0]

• 21 lines of code
• 12 McCabe index (conditional complexity)

    def load_cache(self):
        '''
        Load the cache from disk
        '''
        try:
            with open(self.cache_map_file) as fh:
                cache = json.load(fh)
        except IOError, ValueError:
            # Just bail if the file is not there, is empty, or does not parse.
            return

        changed = False  # whether we changed the cache file, and need to write it out
        # verify that all of those directories exist, clean them out if they don't
        for source_hash, env_map in cache.items():
            # if the directory doesn't exist
            for key, entry in env_map.items():
                if not os.path.isdir(entry['path']):
                    del cache[source_hash][key]
                    changed = True
            # if the source_hash level key is now empty
            if len(cache[source_hash]) == 0:
                del cache[source_hash]
                changed = True

        self._dict = cache
        if changed:  # if we changed it, lets write it out to disk
            self.save_cache()