class Chef::Knife::Exec

def find_script(x)
  # Try to find a script. First try expanding the path given.

  script = File.expand_path(x)
  return script if File.exist?(script)
  # Failing that, try searching the script path. If we can't find

  # anything, fail gracefully.

  Chef::Log.trace("Searching script_path: #{config[:script_path].inspect}")
  config[:script_path].each do |path|
    path = File.expand_path(path)
    test = File.join(path, x)
    Chef::Log.trace("Testing: #{test}")
    if File.exist?(test)
      script = test
      Chef::Log.trace("Found: #{test}")
      return script
    end
  end
  ui.error("\"#{x}\" not found in current directory or script_path, giving up.")
  exit(1)
end

def run
  config[:script_path] = Array(config[:script_path] || Chef::Config[:script_path])
  # Default script paths are chef-repo/.chef/scripts and ~/.chef/scripts

  config[:script_path] << File.join(Chef::Knife.chef_config_dir, "scripts") if Chef::Knife.chef_config_dir
  ChefConfig::PathHelper.home(".chef", "scripts") { |p| config[:script_path] << p }
  scripts = Array(name_args)
  context = Object.new
  Shell::Extensions.extend_context_object(context)
  if config[:exec]
    context.instance_eval(config[:exec], "-E Argument", 0)
  elsif !scripts.empty?
    scripts.each do |script|
      file = find_script(script)
      context.instance_eval(IO.read(file), file, 0)
    end
  else
    puts "An interactive shell is opened"
    puts
    puts "Type your script and do:"
    puts
    puts "1. To run the script, use 'Ctrl D'"
    puts "2. To exit, use 'Ctrl/Shift C'"
    puts
    puts "Type here a script..."
    script = STDIN.read
    context.instance_eval(script, "STDIN", 0)
  end
end