update webpack to version 3

config/dev.env.js

@@ -1,5 +1,6 @@
-var merge = require('webpack-merge')
-var prodEnv = require('./prod.env')
+'use strict'
+const merge = require('webpack-merge')
+const prodEnv = require('./prod.env')
 
 module.exports = merge(prodEnv, {
   NODE_ENV: '"development"'

config/index.js

@@ -1,21 +1,42 @@
+
+'use strict'
+// Template version: 1.1.1
 // see http://vuejs-templates.github.io/webpack for documentation.
-var path = require('path')
+
+const path = require('path')
 
 module.exports = {
   build: {
     env: require('./prod.env'),
+    index: path.resolve(__dirname, '../dist/index.html'),
     assetsRoot: path.resolve(__dirname, '../dist'),
-    assetsSubDirectory: '',
+    assetsSubDirectory: 'static',
     assetsPublicPath: '/',
     productionSourceMap: true,
+    // Gzip off by default as many popular static hosts such as
+    // Surge or Netlify already gzip all static assets for you.
+    // Before setting to `true`, make sure to:
+    // npm install --save-dev compression-webpack-plugin
+    productionGzip: false,
+    productionGzipExtensions: ['js', 'css'],
+    // Run the build command with an extra argument to
+    // 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
   },
   dev: {
     env: require('./dev.env'),
-    port: 8080,
-    proxyTable: {}
-  },
-  umd: {
-    assetsRoot: path.resolve(__dirname, '../umd'),
-    assetsPublicPath: '/'
+    port: process.env.PORT || 8080,
+    autoOpenBrowser: true,
+    assetsSubDirectory: 'static',
+    assetsPublicPath: '/',
+    proxyTable: {},
+    // 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
   }
 }

config/prod.env.js

@@ -1,3 +1,4 @@
+'use strict'
 module.exports = {
   NODE_ENV: '"production"'
 }

config/test.env.js

@@ -1,5 +1,6 @@
-var merge = require('webpack-merge')
-var devEnv = require('./dev.env')
+'use strict'
+const merge = require('webpack-merge')
+const devEnv = require('./dev.env')
 
 module.exports = merge(devEnv, {
   NODE_ENV: '"testing"'