From cb43a508002e64af8e986b0c5eb5bda87810f2ec Mon Sep 17 00:00:00 2001
From: Arpad Borsos <swatinem@swatinem.de>
Date: Sat, 9 Jul 2022 15:31:33 +0200
Subject: [PATCH] fix env filtering

---
 src/config.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/config.ts b/src/config.ts
index 42ce7bc..c8379e4 100644
--- a/src/config.ts
+++ b/src/config.ts
@@ -93,7 +93,7 @@ export class CacheConfig {
 
     // these prefixes should cover most of the compiler / rust / cargo keys
     const envPrefixes = ["CARGO", "CC", "CXX", "CMAKE", "RUST"];
-    envPrefixes.push(...core.getInput("envVars").split(/\s+/));
+    envPrefixes.push(...core.getInput("envVars").split(/\s+/).filter(Boolean));
 
     // sort the available env vars so we have a more stable hash
     const keyEnvs = [];