anchor.diff:  %% ===================================================================
   %% Internal functions
   %% ===================================================================
  +
  +local_opts([], Acc) ->
  +    lists:reverse(Acc);
  +local_opts([local | _Rest], Acc) ->
  +    lists:reverse(Acc);
  +local_opts([Item | Rest], Acc) ->
  +    local_opts(Rest, [Item | Acc]).
  
positive.code:     ConfigFile = filename:join([Dir, "rebar.config"]),
      case file:consult(ConfigFile) of
          {ok, Terms} ->
              Opts = Terms ++ ParentConfig#config.opts;
          {error, enoent} ->
              Opts = ParentConfig#config.opts;
          Other ->
              Opts = undefined, % Keep erlc happy
              ?WARN("Failed to load ~s: ~p\n", [ConfigFile, Other]),
              ?FAIL
      end,
      #config { dir = Dir, opts = Opts }.
  
  get_list(Config, Key, Default) ->
      get(Config, Key, Default).
  
  get(Config, Key, Default) ->
      proplists:get_value(Key, Config#config.opts, Default).
  
  delete(Config, Key) ->
      Config#config { opts = proplists:delete(Key, Config#config.opts) }.
  
  set_global(Key, Value) ->
      application:set_env(rebar_global, Key, Value).
  
negative.code: -module(rebar_config).
  
  -export([new/0, new/1,
           get/3, get_local/3, get_list/3,
           get_all/2,
           set/3,
           set_global/2, get_global/2,
           is_verbose/0]).
  
  