trails

%% -*- mode: erlang; -*-
case erlang:function_exported(rebar3, main, 1) of
    true ->
        %% rebar3
        CONFIG;
    false ->
        %% rebar 2.x or older
        %% rebuild deps
        Rebar3Deps = proplists:get_value(deps, CONFIG),
        Rebar3TestDeps =
        proplists:get_value(deps,
                            proplists:get_value(test,
                                                proplists:get_value(profiles,
                                                                    CONFIG))),

        %% whenever adding a new Hex package dependency, this fun should be
        %% updated
        HexToRepo = fun(cowboy) -> "https://github.com/ninenines/cowboy.git";
                       (ranch) -> "https://github.com/ninenines/ranch.git";
                       (meck) -> "https://github.com/eproxus/meck.git"
                    end,

        ConvertDep =
        fun({DepName, {git, Repo, {ref, Tag}}}) ->
            {DepName, ".*", {git, Repo, {tag, Tag}}};
           ({HexDepName, HexDepVersion}) ->
            {HexDepName, ".*", {git, HexToRepo(HexDepName), {tag, HexDepVersion}}}
        end,

        Rebar2Deps = [ ConvertDep(Dep) || Dep <- Rebar3Deps ++ Rebar3TestDeps ],

        lists:keystore(deps, 1, CONFIG, {deps, Rebar2Deps})
end.