# File lib/heroku/command/run.rb, line 74
  def console_history_read(app)
    history = File.read(console_history_file(app)).split("\n")
    if history.size > 50
      history = history[(history.size - 51),(history.size - 1)]
      File.open(console_history_file(app), "w") { |f| f.puts history.join("\n") }
    end
    history.each { |cmd| Readline::HISTORY.push(cmd) }
  rescue Errno::ENOENT
  rescue Exception => ex
    display "Error reading your console history: #{ex.message}"
    if confirm("Would you like to clear it? (y/N):")
      FileUtils.rm(console_history_file(app)) rescue nil
    end
  end