uninstall_dep

# File lib/rubygems/commands/cleanup_command.rb, line 134
  def uninstall_dep spec
    return unless @full.ok_to_remove?(spec.full_name)

    if options[:dryrun] then
      say "Dry Run Mode: Would uninstall #{spec.full_name}"
      return
    end

    say "Attempting to uninstall #{spec.full_name}"

    uninstall_options = {
      :executables => false,
      :version => "= #{spec.version}",
    }

    uninstall_options[:user_install] = Gem.user_dir == spec.base_dir

    uninstaller = Gem::Uninstaller.new spec.name, uninstall_options

    begin
      uninstaller.uninstall
    rescue Gem::DependencyRemovalException, Gem::InstallError,
           Gem::GemNotInHomeException, Gem::FilePermissionError => e
      say "Unable to uninstall #{spec.full_name}:"
      say "\t#{e.class}: #{e.message}"
    end
  ensure
    # Restore path Gem::Uninstaller may have changed
    Gem.use_paths @original_home, *@original_path
  end