rebar.config.script

%% -*- 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),
        Rebar3TestProf = proplists:get_value(test, proplists:get_value(profiles, CONFIG)),
        {value, {deps, Rebar3TestDeps}, Rebar3TestProf2} = lists:keytake(deps, 1, Rebar3TestProf),

        %% whenever adding a new Hex package dependency, this fun should be
        %% updated
        HexToRepo = fun(proper) -> "https://github.com/manopapad/proper.git"
                    end,

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

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

        lists:keystore(deps, 1, CONFIG, {deps, Rebar2Deps}) ++ Rebar3TestProf2
end.