From 3703c522fac87c0aa1aaf3c69e7d5e1c54ff49ef Mon Sep 17 00:00:00 2001
From: Jan Losinski <losinski@wh2.tu-dresden.de>
Date: Thu, 22 Mar 2018 02:50:01 +0100
Subject: [PATCH] Get config from environment

---
 wallabag_kindle_consumer/config.py | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/wallabag_kindle_consumer/config.py b/wallabag_kindle_consumer/config.py
index e8fea01..60cfbd5 100644
--- a/wallabag_kindle_consumer/config.py
+++ b/wallabag_kindle_consumer/config.py
@@ -65,4 +65,17 @@ class Config:
 
     @staticmethod
     def from_env():
-        pass
+        tmp = {}
+        missing = []
+        for key in Config.known_values:
+            if key.upper() in os.environ:
+                tmp[key] = os.environ[key.upper()]
+            else:
+                if key in Config.required_values:
+                    missing.append(key)
+
+        if 0 != len(missing):
+            logger.warn("Environment config does not contain configs for: {lst}", lst=", ".join(missing))
+            return None
+
+        return Config(**tmp)