Class: Bidi2pdf::ChromedriverManager

Inherits:
Object
  • Object
show all
Includes:
Chromedriver::Binary::Platform
Defined in:
lib/bidi2pdf/chromedriver_manager.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(port: 0, headless: true, chrome_args: Bidi::Session::DEFAULT_CHROME_ARGS) ⇒ ChromedriverManager

Returns a new instance of ChromedriverManager.



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# File 'lib/bidi2pdf/chromedriver_manager.rb', line 13

def initialize(port: 0, headless: true, chrome_args: Bidi::Session::DEFAULT_CHROME_ARGS)
  @port = port
  @headless = headless
  @session = nil
  @started = false
  @chrome_args = chrome_args
  @shutdown_mutex ||= Mutex.new
end

Instance Attribute Details

#chrome_args ⇒ Object (readonly)

Returns the value of attribute chrome_args.



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# File 'lib/bidi2pdf/chromedriver_manager.rb', line 10

def chrome_args
  @chrome_args
end

#headless ⇒ Object (readonly)

Returns the value of attribute headless.



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# File 'lib/bidi2pdf/chromedriver_manager.rb', line 10

def headless
  @headless
end

#pid ⇒ Object (readonly)

Returns the value of attribute pid.



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# File 'lib/bidi2pdf/chromedriver_manager.rb', line 10

def pid
  @pid
end

#port ⇒ Object (readonly)

Returns the value of attribute port.



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# File 'lib/bidi2pdf/chromedriver_manager.rb', line 10

def port
  @port
end

#reader_thread ⇒ Object

Returns the value of attribute reader_thread.



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# File 'lib/bidi2pdf/chromedriver_manager.rb', line 11

def reader_thread
  @reader_thread
end

#shutdown_mutex ⇒ Object (readonly)

Returns the value of attribute shutdown_mutex.



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# File 'lib/bidi2pdf/chromedriver_manager.rb', line 10

def shutdown_mutex
  @shutdown_mutex
end

#started ⇒ Object (readonly)

Returns the value of attribute started.



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# File 'lib/bidi2pdf/chromedriver_manager.rb', line 10

def started
  @started
end

Instance Method Details

#session ⇒ Object 



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# File 'lib/bidi2pdf/chromedriver_manager.rb', line 41

def session
  return unless @started

  @session ||= Bidi::Session.new(session_url: session_url, headless: @headless, chrome_args: @chrome_args)
end

#session_url ⇒ Object 



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# File 'lib/bidi2pdf/chromedriver_manager.rb', line 47

def session_url
  return unless @started

  "http://localhost:#{@port}/session"
end

#start ⇒ Object 



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# File 'lib/bidi2pdf/chromedriver_manager.rb', line 22

def start
  return @pid if @pid

  @started = true

  update_chromedriver
  cmd = build_cmd
  Bidi2pdf.logger.info "Starting Chromedriver with command: #{cmd}"

  spawn_process(cmd)

  Bidi2pdf.logger.info "Started Chromedriver on port #{@port}, PID #{@pid}"
  wait_until_chromedriver_ready

  at_exit { stop }

  @pid
end

#stop(timeout: 5) ⇒ Object

rubocop: disable Metrics/AbcSize



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# File 'lib/bidi2pdf/chromedriver_manager.rb', line 54

def stop(timeout: 5)
  shutdown_mutex.synchronize do
    return unless @pid

    if reader_thread&.alive?
      begin
        reader_thread.kill
        reader_thread.join
      rescue StandardError => e
        Bidi2pdf.logger.error "Error killing reader thread: #{e.message}"
      end
    end

    @started = false

    close_session

    debug_show_all_children

    old_childprocesses = term_chromedriver

    detect_zombie_processes old_childprocesses

    return unless process_alive?

    kill_chromedriver timeout: timeout
  ensure
    @pid = nil
    @started = false
  end
end