class Sidekiq::CLI

def setup_options(args)
  # parse CLI options
  opts = parse_options(args)
  set_environment opts[:environment]
  # check config file presence
  if opts[:config_file]
    unless File.exist?(opts[:config_file])
      raise ArgumentError, "No such file #{opts[:config_file]}"
    end
  else
    config_dir = if File.directory?(opts[:require].to_s)
      File.join(opts[:require], "config")
    else
      File.join(@config[:require], "config")
    end
    %w[sidekiq.yml sidekiq.yml.erb].each do |config_file|
      path = File.join(config_dir, config_file)
      opts[:config_file] ||= path if File.exist?(path)
    end
  end
  # parse config file options
  opts = parse_config(opts[:config_file]).merge(opts) if opts[:config_file]
  # set defaults
  opts[:queues] = ["default"] if opts[:queues].nil?
  opts[:concurrency] = Integer(ENV["RAILS_MAX_THREADS"]) if opts[:concurrency].nil? && ENV["RAILS_MAX_THREADS"]
  # merge with defaults
  @config.merge!(opts)
  @config.default_capsule.tap do |cap|
    cap.queues = opts[:queues]
    cap.concurrency = opts[:concurrency] || @config[:concurrency]
  end
  opts[:capsules]&.each do |name, cap_config|
    @config.capsule(name.to_s) do |cap|
      cap.queues = cap_config[:queues]
      cap.concurrency = cap_config[:concurrency]
    end
  end
end