1 from bzrlib import plugin
  2 from bzrlib import errors
  3 import plugin_db
  4 
  5 class DefaultProvider(plugin.Provider):
  6 
  7     def check_for_plugin(self, cmd_name):
  8         ret_val = []
  9         for elem in self._get_plugins():
 10             try:
 11                 if elem['commands'].index(cmd_name) >= 0:
 12                     ret_val.append(elem['name'])
 13             except:
 14                 pass
 15         if len(ret_val) > 0:
 16             raise errors.BzrCommandError('Yay! ')
 17 
 18     def _get_plugins(self):
 19         plugin_list = [attr for attr in dir(plugin_db) if not attr.startswith('__') and not attr.endswith('__')]
 20         return plugin_list