From a1cd868c0224f16d921a25f04cbc39cb03a5471d Mon Sep 17 00:00:00 2001
From: Phil Booth <pmbooth@gmail.com>
Date: Wed, 26 Sep 2018 06:49:21 +0100
Subject: Treat empty environment variables as unset

---
 src/env.rs | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'src')

diff --git a/src/env.rs b/src/env.rs
index 51e91a9..d570932 100644
--- a/src/env.rs
+++ b/src/env.rs
@@ -74,6 +74,11 @@ impl Source for Environment {
         };
 
         for (key, value) in env::vars() {
+            // Treat empty environment variables as unset
+            if cfg!(feature = "ignore-empty-env-vars") && value == "" {
+                continue;
+            }
+
             let mut key = key.to_string();
 
             // Check for prefix
-- 
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