build

# File lib/rubygems/package.rb, line 244
  def build skip_validation = false
    Gem.load_yaml
    require 'rubygems/security'

    @spec.mark_version
    @spec.validate unless skip_validation

    setup_signer

    @gem.with_write_io do |gem_io|
      Gem::Package::TarWriter.new gem_io do |gem|
        add_metadata gem
        add_contents gem
        add_checksums gem
      end
    end

    say   Successfully built RubyGem  Name: #{@spec.name}  Version: #{@spec.version}  File: #{File.basename @spec.cache_file}
  ensure
    @signer = nil
  end