Treat empty environment variables as unset

1 files changed, 5 insertions, 0 deletions

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