class ChefCLI::Command::GeneratorCommands::Policyfile

def read_and_validate_params
  arguments = parse_options(params)
  case arguments.size
  when 0
    if chef_repo_mode?
      err("ERROR: You must give a policy name when generating a policy in a chef-repo.")
      @params_valid = false
      false
    else
      use_default_policy_settings
    end
  when 1
    derive_policy_settings_from_args(arguments[0])
  else
    @params_valid = false
    err("ERROR: too many arguments")
    false
  end
end