Fix cache creation on Windows.

Author: domdfcoding

seed_intersphinx_mapping/cache.py

@@ -72,7 +72,7 @@ class Cache:
 	def __init__(self, app_name: str):
 		self.app_name: str = str(app_name)
 		self.cache_dir = PathPlus(user_cache_dir(f"{self.app_name}_cache"))
-		self.cache_dir.maybe_make()
+		self.cache_dir.maybe_make(parents=True)
 
 		# Mapping of function names to their caches
 		self.caches: Dict[str, Dict[str, Any]] = {}

seed_intersphinx_mapping/extension.py

@@ -53,9 +53,8 @@ def sphinx_seed_intersphinx_mapping(app: Sphinx, config: Config) -> None:
 	:param config:
 	"""
 
-	config.repository_root = repo_root = os.path.abspath(
-			pathlib.Path(app.srcdir) / config.repository_root
-			)  # type: ignore
+	repo_root = os.path.abspath(pathlib.Path(app.srcdir) / config.repository_root)
+	config.repository_root = repo_root  # type: ignore
 
 	if config.pkg_requirements_source == "requirements":
 		for name, (uri, inv) in seed_intersphinx_mapping(repo_root).items():