Gem::Commands::GenerateIndexCommand.new

# File tmp/rubies/ruby-3.1.3/lib/rubygems/commands/generate_index_command.rb, line 11
def initialize
  super "generate_index",
        "Generates the index files for a gem server directory",
        :directory => ".", :build_modern => true

  add_option "-d", "--directory=DIRNAME",
             "repository base dir containing gems subdir" do |dir, options|
    options[:directory] = File.expand_path dir
  end

  add_option "--[no-]modern",
             "Generate indexes for RubyGems",
             "(always true)" do |value, options|
    options[:build_modern] = value
  end

  deprecate_option("--modern", version: "4.0", extra_msg: "Modern indexes (specs, latest_specs, and prerelease_specs) are always generated, so this option is not needed.")
  deprecate_option("--no-modern", version: "4.0", extra_msg: "The `--no-modern` option is currently ignored. Modern indexes (specs, latest_specs, and prerelease_specs) are always generated.")

  add_option "--update",
             "Update modern indexes with gems added",
             "since the last update" do |value, options|
    options[:update] = value
  end
end