verify_entry

# File lib/rubygems/package.rb, line 635
  def verify_entry(entry)
    file_name = entry.full_name
    @files << file_name

    case file_name
    when /\.sig$/ then
      @signatures[$`] = entry.read if @security_policy
      return
    else
      digest entry
    end

    case file_name
    when "metadata", "metadata.gz" then
      load_spec entry
    when 'data.tar.gz' then
      verify_gz entry
    end
  rescue => e
    message = "package is corrupt, exception while verifying: " +
              "#{e.message} (#{e.class})"
    raise Gem::Package::FormatError.new message, @gem
  end