rebar.config.script

Plugins =
  case erlang:list_to_integer(erlang:system_info(otp_release)) of
    Version when Version > 23 ->
      ExtraPlugins = [{rebar3_ex_doc, "~> 0.2.9"},{rebar3_hex, "~> 7.0.1"}],
      {project_plugins, lists:merge(ExtraPlugins, proplists:get_value(project_plugins, CONFIG))};
    _ -> {project_plugins, proplists:get_value(project_plugins, CONFIG)}
  end,
CoverallsConfigs = case {os:getenv("GITHUB_ACTIONS"), os:getenv("GITHUB_TOKEN")} of
  {"true", Token} when is_list(Token) ->
    Configs = [{coveralls_repo_token, Token},
               {coveralls_coverdata, "_build/test/cover/*.coverdata"},
               {coveralls_service_job_id, os:getenv("GITHUB_RUN_ID")},
               {coveralls_commit_sha, os:getenv("GITHUB_SHA")},
               {coveralls_service_name, "github"},
               {coveralls_service_number, os:getenv("GITHUB_RUN_NUMBER")}],
    case os:getenv("GITHUB_EVENT_NAME") =:= "pull_request" andalso string:tokens(os:getenv("GITHUB_REF"), "/") of
      [_, "pull", PRNO, _] -> [{coveralls_service_pull_request, PRNO} | Configs];
      _ -> Configs
    end;
  _ -> []
end,
[Plugins | lists:merge(CoverallsConfigs, CONFIG)].