From a11b28e5ef7448169d49de899ef79ac240b52d7f Mon Sep 17 00:00:00 2001
From: davidlatwe <davidlatwe@gmail.com>
Date: Sun, 16 Jan 2022 19:11:43 +0800
Subject: [PATCH] fix turning env keys to lowercase

---
 src/rezup/container.py | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/rezup/container.py b/src/rezup/container.py
index a1d3321..948a3f2 100644
--- a/src/rezup/container.py
+++ b/src/rezup/container.py
@@ -568,8 +568,11 @@ def file_loader(d):
         recipe_env = recipe.get("env")
         if recipe_env:
             stream = StringIO()
-            parsed_recipe_env = ConfigParser(recipe_env)
-            parsed_recipe_env.write(stream)
+
+            _parser = ConfigParser()
+            _parser.optionxform = str  # to prevent turning keys into lowercase
+            _parser.read_dict({"env": recipe_env})
+            _parser.write(stream)
 
             stream.seek(0)  # must reset buffer
             env.update(load_env(stream=stream))