anchor.diff:  
       NewConfig = Config#{files => ErlFiles},
   
  -    case run(NewConfig) of
  +    case rock(NewConfig) of
           fail -> elvis_utils:erlang_halt(1);
           ok -> ok
       end.
  
positive.code:             help()
      end.
  
  %%% Commands
  
  -spec rock() -> ok.
  rock() ->
      Config = elvis_config:default(),
      rock(Config).
  
  -spec rock(elvis_config:config()) -> ok.
  rock(Config) ->
      run(Config).
  
  -spec git_hook(elvis_config:config()) -> ok.
  git_hook(Config) ->
  
negative.code: %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  %%% Private
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  
  -spec apply_rules(elvis_config:config(), elvis_utils:file()) ->
      elvis_result:file_result().
  