From c81484fa92536acaf3b05dddf091db7e72988770 Mon Sep 17 00:00:00 2001
From: Vasil Trifonov <v.trifonov@gmail.com>
Date: Thu, 27 Sep 2018 16:18:28 +0300
Subject: [PATCH] fix: add a check for undefined environment values (#673)

* add a check for undefined environment values
---
 lib/compiler.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/compiler.js b/lib/compiler.js
index 159c366a..75c3da0f 100644
--- a/lib/compiler.js
+++ b/lib/compiler.js
@@ -135,6 +135,9 @@ function buildEnvCommandLineParams(config, envData, $logger) {
     const args = [];
     envFlagNames.map(item => {
         let envValue = envData[item];
+        if (typeof envValue === "undefined") {
+            return;
+        }
         if (typeof envValue === "boolean") {
             if (envValue) {
                 args.push(`--env.${item}`);