class Gem::Commands::RdocCommand

def initialize
  super 'rdoc', 'Generates RDoc for pre-installed gems',
        :version => Gem::Requirement.default,
        :include_rdoc => false, :include_ri => true, :overwrite => false
  add_option('--all',
             'Generate RDoc/RI documentation for all',
             'installed gems') do |value, options|
    options[:all] = value
  end
  add_option('--[no-]rdoc',
             'Generate RDoc HTML') do |value, options|
    options[:include_rdoc] = value
  end
  add_option('--[no-]ri',
             'Generate RI data') do |value, options|
    options[:include_ri] = value
  end
  add_option('--[no-]overwrite',
             'Overwrite installed documents') do |value, options|
    options[:overwrite] = value
  end
  add_version_option
end