class Webpacker::DevServerRunner

def load_config
  @config_file = File.join(@app_path, "config/webpacker.yml")
  dev_server = YAML.load_file(@config_file)[ENV["RAILS_ENV"]]["dev_server"]
  @hostname          = dev_server["host"]
  @port              = dev_server["port"]
  @pretty            = dev_server.fetch("pretty", true)
rescue Errno::ENOENT, NoMethodError
  $stdout.puts "webpack dev_server configuration not found in #{@config_file}."
  $stdout.puts "Please run bundle exec rails webpacker:install to install Webpacker"
  exit!
end