feat: upgrade to babel 7 + use @vue/babel-preset-app

Author: yyx990803

lib/app/clientEntry.js

@@ -1,6 +1,5 @@
 /* global BASE_URL, GA_ID, ga, SW_ENABLED */
 
-import '@temp/polyfill'
 import { createApp } from './app'
 import { register } from 'register-service-worker'
 

lib/prepare.js

@@ -50,25 +50,16 @@ module.exports = async function prepare (sourceDir) {
   const dataCode = `export const siteData = ${JSON.stringify(options.siteData, null, 2)}`
   await writeTemp('siteData.js', dataCode)
 
-  // 4. generate basic polyfill if need to support older browsers
-  let polyfillCode = ``
-  if (!options.siteConfig.evergreen) {
-    polyfillCode =
-`import 'es6-promise/auto'
-if (!Object.assign) Object.assign = require('object-assign')`
-  }
-  await writeTemp('polyfill.js', polyfillCode)
-
-  // 5. handle user override
+  // 4. handle user override
   const overridePath = path.resolve(sourceDir, '.vuepress/override.styl')
   const hasUserOverride = fs.existsSync(overridePath)
   await writeTemp(`override.styl`, hasUserOverride ? `@import(${JSON.stringify(overridePath)})` : ``)
 
-  // 6. handle enhanceApp.js
+  // 5. handle enhanceApp.js
   const enhanceAppPath = path.resolve(sourceDir, '.vuepress/enhanceApp.js')
   await writeEnhanceTemp('enhanceApp.js', enhanceAppPath)
 
-  // 7. handle the theme enhanceApp.js
+  // 6. handle the theme enhanceApp.js
   await writeEnhanceTemp('themeEnhanceApp.js', options.themeEnhanceAppPath)
 
   return options

lib/webpack/createBaseConfig.js

@@ -166,12 +166,7 @@ module.exports = function createBaseConfig ({
           .loader('babel-loader')
           .options({
             presets: [
-              require.resolve('babel-preset-env'),
-              require.resolve('babel-preset-stage-2')
-            ],
-            plugins: [
-              require.resolve('babel-plugin-transform-vue-jsx'),
-              require.resolve('babel-plugin-transform-runtime')
+              require.resolve('@vue/babel-preset-app')
             ]
           })
   }

package.json

@@ -38,14 +38,9 @@
   },
   "dependencies": {
     "autoprefixer": "^8.2.0",
-    "babel-core": "^6.26.3",
-    "babel-helper-vue-jsx-merge-props": "^2.0.3",
-    "babel-loader": "^7.1.4",
-    "babel-plugin-syntax-jsx": "^6.18.0",
-    "babel-plugin-transform-runtime": "^6.23.0",
-    "babel-plugin-transform-vue-jsx": "^3.7.0",
-    "babel-preset-env": "^1.6.1",
-    "babel-preset-stage-2": "^6.24.1",
+    "@babel/core": "7.0.0-beta.47",
+    "babel-loader": "8.0.0-beta.3",
+    "@vue/babel-preset-app": "3.0.0-beta.11",
     "cache-loader": "^1.2.2",
     "chalk": "^2.3.2",
     "chokidar": "^2.0.3",
@@ -56,7 +51,6 @@
     "css-loader": "^0.28.11",
     "diacritics": "^1.3.0",
     "docsearch.js": "^2.5.2",
-    "es6-promise": "^4.2.4",
     "escape-html": "^1.0.3",
     "file-loader": "^1.1.11",
     "fs-extra": "^5.0.0",
@@ -76,7 +70,6 @@
     "markdown-it-table-of-contents": "^0.3.3",
     "mini-css-extract-plugin": "^0.4.0",
     "nprogress": "^0.2.0",
-    "object-assign": "^4.1.1",
     "optimize-css-assets-webpack-plugin": "^4.0.0",
     "portfinder": "^1.0.13",
     "postcss-loader": "^2.1.5",