def _get_envs(self):
        '''
        Pull the file server environments out of the master options
        '''
        envs = set(['base'])
        if 'file_roots' in self.opts:
            envs.update(list(self.opts['file_roots']))
        return envs
dataset/ETHPy150Open saltstack/salt/salt/pillar/__init__.py/Pillar._get_envs/original