From eff941dbf8d022d380f11ea4efc44375bb198719 Mon Sep 17 00:00:00 2001
From: Justin Riley <justin.t.riley@gmail.com>
Date: Wed, 3 Aug 2016 00:13:16 -0400
Subject: [PATCH] utils: add get_kwargs_from_env function

---
 onedns/utils.py | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

diff --git a/onedns/utils.py b/onedns/utils.py
index b49ca00..e457430 100644
--- a/onedns/utils.py
+++ b/onedns/utils.py
@@ -1,10 +1,21 @@
+import os
+
 from onedns.logger import log
 
 
-def get_kwargs_from_dict(d, prefix):
-    kwargs = dict((i.replace(prefix, ''), d[i])
-                  for i in d.keys() if i.startswith(prefix))
-    return kwargs
+def get_kwargs_from_dict(d, prefix, lower=False):
+    tups_list = []
+    for i in d:
+        if i.startswith(prefix):
+            arg = i.replace(prefix, '')
+            if lower:
+                arg = arg.lower()
+            tups_list.append((arg, d[i]))
+    return dict(tups_list)
+
+
+def get_kwargs_from_env(prefix, lower=False):
+    return get_kwargs_from_dict(os.environ, prefix, lower=lower)
 
 
 def shell(local_ns={}):