rebar.config.script

Config = try json:module_info(exports) of
             E ->
                 lists:keystore(erl_opts, 1, CONFIG,
                                {erl_opts,
                                 case lists:keyfind(erl_opts, 1, CONFIG) of
                                     {_, O} -> [{d, 'HAVE_json_encode_1'}|O];
                                     _ -> [{d, 'HAVE_json_encode_1'}]
                                 end})
         catch
             _:_ -> CONFIG
         end,
case erlang:function_exported(rebar3, main, 1) of
    true -> Config;
    false ->
        case lists:keyfind(deps, 1, Config) of
            {_, Deps} ->
                lists:keyreplace(deps, 1, Config,
                                 {deps,
                                  lists:map(fun(Dep) when Dep =:= otpbp; Dep =:= emsgpack ->
                                                {Dep,
                                                 {git,
                                                  "https://github.com/Ledest/" ++ atom_to_list(Dep) ++".git",
                                                  {branch, "master"}}};
                                               ({Dep, V}) when Dep =:= otpbp orelse Dep =:= emsgpack, is_list(V) ->
                                                {Dep,
                                                 {git,
                                                  "https://github.com/Ledest/" ++ atom_to_list(Dep) ++".git",
                                                  case V of
                                                      "~> " ++ _ -> {branch, "master"};
                                                      _ -> {tag, V}
                                                  end}};
                                               (Dep) -> Dep
                                            end, Deps)});
            _ -> Config
        end
end.