From e59b3dd4f773bfee81e9d8cbe195d13e72bf6bba Mon Sep 17 00:00:00 2001
From: Wu Haotian <whtsky@gmail.com>
Date: Fri, 25 Aug 2017 17:35:44 +0800
Subject: [PATCH] Don't set `babelOptions.presets` if babelrc = true

---
 lib/builder/builder.js | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/lib/builder/builder.js b/lib/builder/builder.js
index 27ec1a84ba..ed037e95ef 100644
--- a/lib/builder/builder.js
+++ b/lib/builder/builder.js
@@ -120,12 +120,14 @@ export default class Builder extends Tapable {
 
     // Babel options
     this.babelOptions = _.defaults(this.options.build.babel, {
-      presets: [
-        require.resolve('babel-preset-vue-app')
-      ],
       babelrc: false,
       cacheDirectory: !!this.options.dev
     })
+    if (!this.babelOptions.babelrc && !this.babelOptions.presets) {
+      this.babelOptions.presets = [
+        require.resolve('babel-preset-vue-app')
+      ]
+    }
 
     // Map postcss plugins into instances on object mode once
     if (isPureObject(this.options.build.postcss)) {