From 4f6b4bf91c0dc9aefb99f2597dafc5fa39e75a17 Mon Sep 17 00:00:00 2001
From: Valentin Vago <valentin.vago@gmail.com>
Date: Mon, 15 Jan 2018 20:05:53 +0100
Subject: [PATCH] allow passing default values to environment plugin

---
 packages/env/index.js | 21 ++++++++++++++++++---
 1 file changed, 18 insertions(+), 3 deletions(-)

diff --git a/packages/env/index.js b/packages/env/index.js
index 78d344f6e..13f92d2ad 100644
--- a/packages/env/index.js
+++ b/packages/env/index.js
@@ -1,5 +1,20 @@
 const { EnvironmentPlugin } = require('webpack');
 
-module.exports = ({ config }, envs = []) => config
-  .plugin('env')
-  .use(EnvironmentPlugin, ['NODE_ENV', ...envs]);
+module.exports = ({ config }, envs = []) => {
+  let pluginOptions;
+
+  if (Array.isArray(envs)) {
+    pluginOptions = ['NODE_ENV', ...envs];
+  }
+  else {
+    pluginOptions = [
+      Object.assign({
+        NODE_ENV: 'development'
+      }, envs)
+    ];
+  }
+
+  config
+    .plugin('env')
+    .use(EnvironmentPlugin, pluginOptions);
+};