code: def get_resources(genome, ref_file, data):
      
      base_dir = os.path.normpath(os.path.dirname(ref_file))
      resource_file = os.path.join(base_dir, "%s-resources.yaml" % genome.replace("-test", ""))
      if not os.path.exists(resource_file):
          raise IOError("Did not find resource file for %s: %s\n"
                        "To update bcbio_nextgen.py with genome resources for standard builds, run:\n"
                        "bcbio_nextgen.py upgrade -u skip"
                        % (genome, resource_file))
      with open(resource_file) as in_handle:
          resources = yaml.safe_load(in_handle)
  
      def resource_file_path(x):
          if isinstance(x, six.string_types) and os.path.exists(os.path.join(base_dir, x)):
              return os.path.normpath(os.path.join(base_dir, x))
          return x
      cleaned = utils.dictapply(resources, resource_file_path)
      return ensure_annotations(cleaned, data)
docs: Retrieve genome information from a genome-references.yaml file.