class Byebug::LocalInterface

def initialize()
  super
  @command_queue = []
  @have_readline = false
  @history_save = true
  # take gdb's default
  @history_length = ENV["HISTSIZE"] ? ENV["HISTSIZE"].to_i : 256
  @histfile = File.join(ENV["HOME"]||ENV["HOMEPATH"]||".",
                        FILE_HISTORY)
  open(@histfile, 'r') do |file|
    file.each do |line|
      line.chomp!
      Readline::HISTORY << line
    end
  end if File.exist?(@histfile)
  @restart_file = nil
end