{Vars, ElixirApps} = case file:consult(filename:join([filename:dirname(SCRIPT), "..", "vars.config"])) of
    {ok, Terms} ->
        Backends = [mssql, mysql, odbc, pgsql, redis, sqlite],
        EBs = lists:filter(fun(Backend) -> lists:member({Backend, true}, Terms) end, Backends),
        Elixirs = case lists:keyfind(elixir, 1, Terms) of
            {elixir, true} -> [elixir, iex, logger, mix];
            _ -> []
        end,

        ProfileEnvironmentVariable = os:getenv("REBAR_PROFILE"),
        AsProfiles = case lists:dropwhile(fun("as") -> false; (_) -> true end,
                                               init:get_plain_arguments()) of
                              ["as", Profiles | _] -> string:split(Profiles, ",");
                              _ -> []
                          end,
        Terms2 = case lists:member("dev", [ProfileEnvironmentVariable | AsProfiles]) of
            true -> lists:keystore(tools, 1, Terms, {tools, true});
            false -> Terms
        end,
        Tools = case lists:keyfind(tools, 1, Terms2) of
            {tools, true} -> [observer];
            _ -> []
        end,

        {[lists:keyfind(description, 1, Terms),
         lists:keyfind(vsn, 1, Terms),
         {env, [{enabled_backends, EBs}]}
        ], Elixirs ++ Tools};
    _Err ->
        {[], []}
    end,

{application, ejabberd,
 Vars ++
 [{modules, []},
  {registered, []},
  {applications, [kernel, sasl, ssl, stdlib, syntax_tools]},
  {included_applications,
    [compiler, inets, mnesia, os_mon,
     cache_tab,
     eimp,
     fast_tls,
     fast_xml,
     fast_yaml,
     p1_acme,
     p1_utils,
     pkix,
     stringprep,
     yconf,
     xmpp | ElixirApps]},
  {mod, {ejabberd_app, []}}]}.

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