From ff4a5bd404bf275e369051f07887683273089335 Mon Sep 17 00:00:00 2001
From: Clark Du <clark.duxin@gmail.com>
Date: Sat, 11 Nov 2017 20:52:45 +0800
Subject: [PATCH] feat: make extractCSS configurable

---
 lib/builder/webpack/base.config.js       | 11 +++++++----
 lib/builder/webpack/vue-loader.config.js |  2 +-
 2 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/lib/builder/webpack/base.config.js b/lib/builder/webpack/base.config.js
index e9546072e3..812f1b50fe 100644
--- a/lib/builder/webpack/base.config.js
+++ b/lib/builder/webpack/base.config.js
@@ -105,10 +105,13 @@ export default function webpackBaseConfig(name) {
   }
 
   // CSS extraction
-  if (this.options.build.extractCSS) {
-    config.plugins.push(new ExtractTextPlugin({
-      filename: this.options.build.filenames.css
-    }))
+  const extractCSS = this.options.build.extractCSS
+  if (extractCSS) {
+    const extractOptions = Object.assign(
+      { filename: this.options.build.filenames.css },
+      typeof extractCSS === 'object' ? extractCSS : {}
+    )
+    config.plugins.push(new ExtractTextPlugin(extractOptions))
   }
 
   // Workaround for hiding Warnings about plugins without a default export (#1179)
diff --git a/lib/builder/webpack/vue-loader.config.js b/lib/builder/webpack/vue-loader.config.js
index f281c06fe1..72f431f5c0 100644
--- a/lib/builder/webpack/vue-loader.config.js
+++ b/lib/builder/webpack/vue-loader.config.js
@@ -2,7 +2,7 @@ export default function vueLoader() {
   // https://vue-loader.vuejs.org/en
   const config = {
     postcss: this.options.build.postcss,
-    extractCSS: this.options.build.extractCSS,
+    extractCSS: !!this.options.build.extractCSS,
     cssSourceMap: this.options.build.cssSourceMap,
     preserveWhitespace: false,
     loaders: {