railtie.rb

require "set"

module Cobra
  def self.paths
    @paths ||= Set.new
  end

  def self.register(path)
    paths << path
  end

  class Railtie < ::Rails::Railtie
    config.cobra = ActiveSupport::OrderedOptions.new
    config.cobra.pattern = ["*", "*.rb"]
    config.cobra.directories = %w(
      app/process_managers
      app/read_models
    )

    config.to_prepare { Railtie.setup! }

    def setup!
      return if Rails.configuration.eager_load

      Cobra.config.reset

      paths = Cobra.paths.flat_map do |path|
        config.cobra.directories.flat_map do |directory|
          Dir[path.join(directory, *config.cobra.pattern)]
        end
      end

      paths.each { |path| require_dependency(path) }
    end
  end
end