update to webpack4.0 (#136)

* dev

* update

* fix

* refine

* add ScriptExtHtmlWebpackPlugin

* update

* format

* refine

* typo

* format

* docs

* docs

config/index.js

@@ -6,7 +6,6 @@ const path = require('path')
 
 module.exports = {
   dev: {
-
     // Paths
     assetsSubDirectory: 'static',
     assetsPublicPath: '/',
@@ -35,17 +34,12 @@ module.exports = {
     // https://webpack.js.org/configuration/devtool/#development
     devtool: 'cheap-source-map',
 
-    // If you have problems debugging vue-files in devtools,
-    // set this to false - it *may* help
-    // https://vue-loader.vuejs.org/en/options.html#cachebusting
-    cacheBusting: true,
-
     // CSS Sourcemaps off by default because relative paths are "buggy"
     // with this option, according to the CSS-Loader README
     // (https://github.com/webpack/css-loader#sourcemaps)
     // In our experience, they generally work as expected,
     // just be aware of this issue when enabling this option.
-    cssSourceMap: false,
+    cssSourceMap: false
   },
 
   build: {
@@ -71,7 +65,7 @@ module.exports = {
 
     productionSourceMap: false,
     // https://webpack.js.org/configuration/devtool/#production
-    devtool: '#source-map',
+    devtool: 'source-map',
 
     // Gzip off by default as many popular static hosts such as
     // Surge or Netlify already gzip all static assets for you.
@@ -84,6 +78,9 @@ module.exports = {
     // View the bundle analyzer report after build finishes:
     // `npm run build --report`
     // Set to `true` or `false` to always turn it on or off
-    bundleAnalyzerReport: process.env.npm_config_report
+    bundleAnalyzerReport: process.env.npm_config_report || false,
+
+    // `npm run build:prod --generate_report`
+    generateAnalyzerReport: process.env.npm_config_generate_report || false
   }
 }