split node_modules by default

README.md

@@ -184,14 +184,7 @@ module.exports = {
 
 ### Code splitting
 
-To split vendor code and app code, you can set vendor dependencies using `vendor` option:
-
-```js
-
-module.exports = {
-  vendor: ['vue']
-}
-```
+We enabled code splitting for vendor code and app code by default in production mode, you can set `vendor` option to `false` to disable it. And by default all required modules in `node_modules` will be splitted.
 
 [⬆ back to top](#vbuild)
 

lib/index.js

@@ -48,7 +48,9 @@ function start(cliOptions) { // eslint-disable-line complexity
       hmrEntry: ['client']
     }, options)
   } else {
-    options = Object.assign({}, options)
+    options = Object.assign({
+      vendor: true
+    }, options)
   }
 
   const filename = getFilenames(options)
@@ -228,11 +230,16 @@ function start(cliOptions) { // eslint-disable-line complexity
       })
     )
 
-    if (options.vendor) {
-      webpackConfig.entry.vendor = options.vendor
+    if (options.vendor !== false) {
       webpackConfig.plugins.push(
         new webpack.optimize.CommonsChunkPlugin({
-          names: ['vendor', 'manifest']
+          name: 'vendor',
+          minChunks: module => {
+            return module.resource && /\.js$/.test(module.resource) && module.resource.indexOf('node_modules') !== -1
+          }
+        }),
+        new webpack.optimize.CommonsChunkPlugin({
+          name: 'manifest'
         })
       )
     }