# File lib/deltacloud/drivers.rb, line 34
    def driver_config
      if Thread::current[:drivers].nil?
        Thread::current[:drivers] = {}
        top_srcdir = File.join(File.dirname(__FILE__), '..', '..')
        Dir[File.join(top_srcdir, 'config', 'drivers', '*.yaml')].each do |driver_file|
          Thread::current[:drivers].merge!(YAML::load(File::read(driver_file)))
        end
      end
      Thread::current[:drivers]
    end