Revert "Simplify NO_COLOR check"

geieredgar · geieredgar · commit 69b2cb5ea67e · 2019-07-23T17:38:29.000+02:00
This reverts commit e9ff1be.
diff --git a/pre_commit/color.py b/pre_commit/color.py
@@ -48,7 +48,7 @@ def use_color(setting):
     if setting not in COLOR_CHOICES:
         raise InvalidColorSetting(setting)
 
-    if os.environ.get('NO_COLOR'):
+    if 'NO_COLOR' in os.environ and os.environ['NO_COLOR']:
         return False
 
     return (
