emqx4.3/apps/emqx_ds_backends/src/emqx_ds_backends.app.src.script

%% -*- mode: erlang -*-
Profile = case os:getenv("PROFILE") of
            "emqx-enterprise" ++ _ ->
              ee;
            "emqx-platform" ++ _ ->
              platform;
            false ->
              io:format(user, "WARN: environment variable PROFILE is not set, using 'emqx-enterprise'~n", []),
              ee;
            _ ->
              ce
          end,

Backends = case Profile of
             ce ->
               [emqx_ds_builtin_local];
             ee ->
               [emqx_ds_builtin_local, emqx_ds_builtin_raft];
             platform ->
               [emqx_ds_builtin_local, emqx_ds_builtin_raft, emqx_fdb_ds, emqx_ds_fdb_backend]
           end,

io:format(user, "DS backends available for this release (~p): ~0p~n", [Profile, Backends]),

{application, emqx_ds_backends, [
    {description, "A placeholder application that depends on all available DS backends"},
    % strict semver, bump manually!
    {vsn, "0.1.0"},
    {modules, []},
    {registered, []},
    {applications, [kernel, stdlib, emqx_durable_storage | Backends]},
    {env, [{available_backends, Backends}]}
]}.