class Bundler::Source::GemCache

def install(spec)
  destination = Gem.dir
  Bundler.ui.debug "  * Installing from pack"
  installer = Gem::Installer.new "#{@path}/#{spec.full_name}.gem",
    :install_dir         => Gem.dir,
    :ignore_dependencies => true,
    :wrappers            => true,
    :env_shebang         => true,
    :bin_dir             => "#{Gem.dir}/bin"
  installer.install
end