class Gem::Commands::UninstallCommand

def initialize
  super 'uninstall', 'Uninstall gems from the local repository',
        :version => Gem::Requirement.default, :user_install => true,
        :check_dev => false, :vendor => false
  add_option('-a', '--[no-]all',
    'Uninstall all matching versions'
    ) do |value, options|
    options[:all] = value
  end
  add_option('-I', '--[no-]ignore-dependencies',
             'Ignore dependency requirements while',
             'uninstalling') do |value, options|
    options[:ignore] = value
  end
  add_option('-D', '--[no-]-check-development',
             'Check development dependencies while uninstalling',
             '(default: false)') do |value, options|
    options[:check_dev] = value
  end
  add_option('-x', '--[no-]executables',
               'Uninstall applicable executables without',
               'confirmation') do |value, options|
    options[:executables] = value
  end
  add_option('-i', '--install-dir DIR',
             'Directory to uninstall gem from') do |value, options|
    options[:install_dir] = File.expand_path(value)
  end
  add_option('-n', '--bindir DIR',
             'Directory to remove binaries from') do |value, options|
    options[:bin_dir] = File.expand_path(value)
  end
  add_option('--[no-]user-install',
             'Uninstall from user\'s home directory',
             'in addition to GEM_HOME.') do |value, options|
    options[:user_install] = value
  end
  add_option('--[no-]format-executable',
             'Assume executable names match Ruby\'s prefix and suffix.') do |value, options|
    options[:format_executable] = value
  end
  add_option('--[no-]force',
             'Uninstall all versions of the named gems',
             'ignoring dependencies') do |value, options|
    options[:force] = value
  end
  add_option('--[no-]abort-on-dependent',
             'Prevent uninstalling gems that are',
             'depended on by other gems.') do |value, options|
    options[:abort_on_dependent] = value
  end
  add_version_option
  add_platform_option
  add_option('--vendor',
             'Uninstall gem from the vendor directory.',
             'Only for use by gem repackagers.') do |value, options|
    unless Gem.vendor_dir then
      raise OptionParser::InvalidOption.new 'your platform is not supported'
    end
    alert_warning 'Use your OS package manager to uninstall vendor gems'
    options[:vendor] = true
    options[:install_dir] = Gem.vendor_dir
  end
end