Run puma with control server for a Sinatra app

config.ru

# Usage: rackup config.ru

require 'gollum'
require 'gollum/frontend/app'
require 'puma'

Precious::App.set(:gollum_path, Dir.pwd)
Precious::App.set(:server, :puma)


Precious::App.run! do |server|
  @options = {control_url: 'tcp://0.0.0.0:9293', control_auth_token: 'foo'}

      if str = @options[:control_url]
        require 'puma/app/status'

        uri = URI.parse str

  cli = nil
        app = Puma::App::Status.new server, cli

        if token = @options[:control_auth_token]
          app.auth_token = token unless token.empty? or token == :none
        end

        status = Puma::Server.new app, server.events
        status.min_threads = 0
        status.max_threads = 1

        case uri.scheme
        when "tcp"
          server.events.log "* Starting status server on #{str}"
          status.add_tcp_listener uri.host, uri.port
        when "unix"
          server.events.log "* Starting status server on #{str}"
          path = "#{uri.host}#{uri.path}"

          status.add_unix_listener path
        else
          server.events.error "Invalid status URI: #{str}"
        end

        status.run
      end