From 071c13261eb6438c0fffcffbaa0eb34432a0f80c Mon Sep 17 00:00:00 2001
From: GDWR <57012020+GDWR@users.noreply.github.com>
Date: Sat, 22 Jan 2022 11:49:34 +0000
Subject: [PATCH] Only read config file once. (#13)

---
 classy_config/classy_config.py | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/classy_config/classy_config.py b/classy_config/classy_config.py
index f25ecbf..911c262 100644
--- a/classy_config/classy_config.py
+++ b/classy_config/classy_config.py
@@ -7,6 +7,7 @@
 
 class ClassyConfig:
     instance: Optional["ClassyConfig"] = None
+    _raw_config: Optional[dict] = None
 
     def __new__(cls, *args, **kwargs):
         if cls.instance is not None:
@@ -19,8 +20,11 @@ def __init__(self, config_file: Union[str, PathLike]):
         self.config_file = config_file
 
     def _get_raw_config_file(self) -> dict:
-        with open(self.config_file, "r") as f:
-            return json.load(f)
+        if self._raw_config is None:
+            with open(self.config_file, "r") as f:
+                self._raw_config = json.load(f)
+
+        return self._raw_config
 
     @property
     def raw_config(self) -> dict: