修改(webpack)：打包方式

Author: ddchef

.gitignore

@@ -1,6 +1,7 @@
 .DS_Store
 node_modules/
 /dist/
+/demo
 npm-debug.log*
 yarn-debug.log*
 yarn-error.log*

build/demo.js

@@ -0,0 +1,41 @@
+'use strict'
+require('./check-versions')()
+
+process.env.NODE_ENV = 'production'
+
+const ora = require('ora')
+const rm = require('rimraf')
+const path = require('path')
+const chalk = require('chalk')
+const webpack = require('webpack')
+const config = require('../config')
+const webpackConfig = require('./webpack.demo.conf')
+
+const spinner = ora('building for production...')
+spinner.start()
+
+rm(path.join(config.build.assetsRoot, config.build.assetsSubDirectory), err => {
+  if (err) throw err
+  webpack(webpackConfig, (err, stats) => {
+    spinner.stop()
+    if (err) throw err
+    process.stdout.write(stats.toString({
+      colors: true,
+      modules: false,
+      children: false, // If you are using ts-loader, setting this to true will make TypeScript errors show up during build.
+      chunks: false,
+      chunkModules: false
+    }) + '\n\n')
+
+    if (stats.hasErrors()) {
+      console.log(chalk.red('  Build failed with errors.\n'))
+      process.exit(1)
+    }
+
+    console.log(chalk.cyan('  Build complete.\n'))
+    console.log(chalk.yellow(
+      '  Tip: built files are meant to be served over an HTTP server.\n' +
+      '  Opening index.html over file:// won\'t work.\n'
+    ))
+  })
+})

build/webpack.demo.conf.js

@@ -0,0 +1,148 @@
+'use strict'
+const path = require('path')
+const utils = require('./utils')
+const webpack = require('webpack')
+const config = require('../config')
+const merge = require('webpack-merge')
+const baseWebpackConfig = require('./webpack.base.conf')
+const CopyWebpackPlugin = require('copy-webpack-plugin')
+const HtmlWebpackPlugin = require('html-webpack-plugin')
+const ExtractTextPlugin = require('extract-text-webpack-plugin')
+const OptimizeCSSPlugin = require('optimize-css-assets-webpack-plugin')
+const UglifyJsPlugin = require('uglifyjs-webpack-plugin')
+const env = process.env.NODE_ENV === 'testing'
+  ? require('../config/test.env')
+  : require('../config/prod.env')
+
+const webpackConfig = merge(baseWebpackConfig, {
+  module: {
+    rules: utils.styleLoaders({
+      sourceMap: config.demo.productionSourceMap,
+      extract: true,
+      usePostCSS: true
+    })
+  },
+  devtool: config.demo.productionSourceMap ? config.demo.devtool : false,
+  output: {
+    path: config.demo.assetsRoot,
+    filename: utils.assetsPath('js/[name].[chunkhash].js'),
+    chunkFilename: utils.assetsPath('js/[id].[chunkhash].js')
+  },
+  plugins: [
+    // http://vuejs.github.io/vue-loader/en/workflow/production.html
+    new webpack.DefinePlugin({
+      'process.env': env
+    }),
+    new UglifyJsPlugin({
+      uglifyOptions: {
+        compress: {
+          warnings: false
+        }
+      },
+      sourceMap: config.demo.productionSourceMap,
+      parallel: true
+    }),
+    // extract css into its own file
+    new ExtractTextPlugin({
+      filename: utils.assetsPath('css/[name].[contenthash].css'),
+      // Setting the following option to `false` will not extract CSS from codesplit chunks.
+      // Their CSS will instead be inserted dynamically with style-loader when the codesplit chunk has been loaded by webpack.
+      // It's currently set to `true` because we are seeing that sourcemaps are included in the codesplit bundle as well when it's `false`,
+      // increasing file size: https://github.com/vuejs-templates/webpack/issues/1110
+      allChunks: true,
+    }),
+    // Compress extracted CSS. We are using this plugin so that possible
+    // duplicated CSS from different components can be deduped.
+    new OptimizeCSSPlugin({
+      cssProcessorOptions: config.demo.productionSourceMap
+        ? { safe: true, map: { inline: false } }
+        : { safe: true }
+    }),
+    // generate dist index.html with correct asset hash for caching.
+    // you can customize output by editing /index.html
+    // see https://github.com/ampedandwired/html-webpack-plugin
+    new HtmlWebpackPlugin({
+      filename: process.env.NODE_ENV === 'testing'
+        ? 'index.html'
+        : config.demo.index,
+      template: 'index.html',
+      inject: true,
+      minify: {
+        removeComments: true,
+        collapseWhitespace: true,
+        removeAttributeQuotes: true
+        // more options:
+        // https://github.com/kangax/html-minifier#options-quick-reference
+      },
+      // necessary to consistently work with multiple chunks via CommonsChunkPlugin
+      chunksSortMode: 'dependency'
+    }),
+    // keep module.id stable when vendor modules does not change
+    new webpack.HashedModuleIdsPlugin(),
+    // enable scope hoisting
+    new webpack.optimize.ModuleConcatenationPlugin(),
+    // split vendor js into its own file
+    new webpack.optimize.CommonsChunkPlugin({
+      name: 'vendor',
+      minChunks (module) {
+        // any required modules inside node_modules are extracted to vendor
+        return (
+          module.resource &&
+          /\.js$/.test(module.resource) &&
+          module.resource.indexOf(
+            path.join(__dirname, '../node_modules')
+          ) === 0
+        )
+      }
+    }),
+    // extract webpack runtime and module manifest to its own file in order to
+    // prevent vendor hash from being updated whenever app bundle is updated
+    new webpack.optimize.CommonsChunkPlugin({
+      name: 'manifest',
+      minChunks: Infinity
+    }),
+    // This instance extracts shared chunks from code splitted chunks and bundles them
+    // in a separate chunk, similar to the vendor chunk
+    // see: https://webpack.js.org/plugins/commons-chunk-plugin/#extra-async-commons-chunk
+    new webpack.optimize.CommonsChunkPlugin({
+      name: 'app',
+      async: 'vendor-async',
+      children: true,
+      minChunks: 3
+    }),
+
+    // copy custom static assets
+    new CopyWebpackPlugin([
+      {
+        from: path.resolve(__dirname, '../static'),
+        to: config.demo.assetsSubDirectory,
+        ignore: ['.*']
+      }
+    ])
+  ]
+})
+
+if (config.demo.productionGzip) {
+  const CompressionWebpackPlugin = require('compression-webpack-plugin')
+
+  webpackConfig.plugins.push(
+    new CompressionWebpackPlugin({
+      asset: '[path].gz[query]',
+      algorithm: 'gzip',
+      test: new RegExp(
+        '\\.(' +
+        config.demo.productionGzipExtensions.join('|') +
+        ')$'
+      ),
+      threshold: 10240,
+      minRatio: 0.8
+    })
+  )
+}
+
+if (config.demo.bundleAnalyzerReport) {
+  const BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin
+  webpackConfig.plugins.push(new BundleAnalyzerPlugin())
+}
+
+module.exports = webpackConfig

config/index.js

@@ -67,6 +67,37 @@ module.exports = {
     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
+  },
+
+  demo: {
+    // Template for index.html
+    index: path.resolve(__dirname, '../demo/index.html'),
+
+    // Paths
+    assetsRoot: path.resolve(__dirname, '../demo'),
+    assetsSubDirectory: 'static',
+    assetsPublicPath: '/',
+
+    /**
+     * Source Maps
+     */
+
+    productionSourceMap: true,
+    // https://webpack.js.org/configuration/devtool/#production
+    devtool: '#source-map',
+
+    // 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`

package.json

@@ -21,7 +21,8 @@
     "e2e": "node test/e2e/runner.js",
     "test": "npm run unit && npm run e2e",
     "lint": "eslint --ext .js,.vue src test/unit test/e2e/specs",
-    "build": "node build/build.js"
+    "build": "node build/build.js",
+    "demo": "node build/demo.js"
   },
   "dependencies": {
     "diff": "^3.5.0",