+def find_environment_file(yaml_files):
+ """
+ Pass file and recursively step backwards until environment file is found
+
+ :param yaml_files: list or string, start at size 1 and grows recursively
+ :return: corresponding environment file for a file, or None
+ """
+ # sanitize
+ if isinstance(yaml_files, str):
+ yaml_files = [yaml_files]
+
+ yaml_file = yaml_files[-1]
+ filepath, filename = os.path.split(yaml_file)
+
+ environment_pair = get_environment_pair(yaml_file)
+ if environment_pair:
+ return environment_pair
+
+ for file in os.listdir(filepath):
+ fq_name = "{}/{}".format(filepath, file)
+ if fq_name.endswith("yaml") or fq_name.endswith("yml"):
+ if fq_name not in yaml_files:
+ with open(fq_name) as f:
+ yml = yaml.load(f)
+ resources = yml.get("resources", {})
+ for resource_id, resource in resources.items():
+ resource_type = resource.get("type", "")
+ if resource_type == "OS::Heat::ResourceGroup":
+ resource_type = (
+ resource.get("properties", {})
+ .get("resource_def", {})
+ .get("type", "")
+ )
+ # found called nested file
+ if resource_type == filename:
+ yaml_files.append(fq_name)
+ environment_pair = find_environment_file(yaml_files)
+
+ return environment_pair
+
+