webpack配置

build/qa.js

 'use strict'
 require('./check-versions')()
 
-process.env.NODE_ENV = 'dev'
+process.env.NODE_ENV = 'development'
 
 const ora = require('ora')
 const rm = require('rimraf')
@@ -9,7 +9,7 @@ const path = require('path')
 const chalk = require('chalk')
 const webpack = require('webpack')
 const config = require('../config')
-const webpackConfig = require('./webpack.dev.conf')
+const webpackConfig = require('./webpack.qa.conf')
 
 const spinner = ora('building for qa...')
 spinner.start()

build/webpack.qa.conf.js

+'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 ScriptExtHtmlWebpackPlugin = require('script-ext-html-webpack-plugin')
+const MiniCssExtractPlugin = require('mini-css-extract-plugin')
+const OptimizeCSSAssetsPlugin = require('optimize-css-assets-webpack-plugin')
+const UglifyJsPlugin = require('uglifyjs-webpack-plugin')
+
+function resolve(dir) {
+  return path.join(__dirname, '..', dir)
+}
+
+const env = require('../config/dev.env')
+
+// For NamedChunksPlugin
+const seen = new Set()
+const nameLength = 4
+
+const webpackConfig = merge(baseWebpackConfig, {
+  mode: 'production',
+  module: {
+    rules: utils.styleLoaders({
+      sourceMap: config.build.productionSourceMap,
+      extract: true,
+      usePostCSS: true
+    })
+  },
+  devtool: config.build.productionSourceMap ? config.build.devtool : false,
+  output: {
+    path: config.build.assetsRoot,
+    filename: utils.assetsPath('js/[name].[chunkhash:8].js'),
+    chunkFilename: utils.assetsPath('js/[name].[chunkhash:8].js')
+  },
+  plugins: [
+    // http://vuejs.github.io/vue-loader/en/workflow/production.html
+    new webpack.DefinePlugin({
+      'process.env': env
+    }),
+    // extract css into its own file
+    new MiniCssExtractPlugin({
+      filename: utils.assetsPath('css/[name].[contenthash:8].css'),
+      chunkFilename: utils.assetsPath('css/[name].[contenthash:8].css')
+    }),
+    // 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: config.build.index,
+      template: 'index.html',
+      inject: true,
+      // favicon: resolve('favicon.ico'),
+      favicon: resolve('ka140.png'),
+      title: 'vue-admin-template',
+      minify: {
+        removeComments: true,
+        collapseWhitespace: true,
+        removeAttributeQuotes: true
+        // more options:
+        // https://github.com/kangax/html-minifier#options-quick-reference
+      }
+      // default sort mode uses toposort which cannot handle cyclic deps
+      // in certain cases, and in webpack 4, chunk order in HTML doesn't
+      // matter anyway
+    }),
+    new ScriptExtHtmlWebpackPlugin({
+      //`runtime` must same as runtimeChunk name. default is `runtime`
+      inline: /runtime\..*\.js$/
+    }),
+    // keep chunk.id stable when chunk has no name
+    new webpack.NamedChunksPlugin(chunk => {
+      if (chunk.name) {
+        return chunk.name
+      }
+      const modules = Array.from(chunk.modulesIterable)
+      if (modules.length > 1) {
+        const hash = require('hash-sum')
+        const joinedHash = hash(modules.map(m => m.id).join('_'))
+        let len = nameLength
+        while (seen.has(joinedHash.substr(0, len))) len++
+        seen.add(joinedHash.substr(0, len))
+        return `chunk-${joinedHash.substr(0, len)}`
+      } else {
+        return modules[0].id
+      }
+    }),
+    // keep module.id stable when vender modules does not change
+    new webpack.HashedModuleIdsPlugin(),
+    // copy custom static assets
+    new CopyWebpackPlugin([
+      {
+        from: path.resolve(__dirname, '../static'),
+        to: config.build.assetsSubDirectory,
+        ignore: ['.*']
+      }
+    ])
+  ],
+  optimization: {
+    splitChunks: {
+      chunks: 'all',
+      cacheGroups: {
+        libs: {
+          name: 'chunk-libs',
+          test: /[\\/]node_modules[\\/]/,
+          priority: 10,
+          chunks: 'initial' // 只打包初始时依赖的第三方
+        },
+        elementUI: {
+          name: 'chunk-elementUI', // 单独将 elementUI 拆包
+          priority: 20, // 权重要大于 libs 和 app 不然会被打包进 libs 或者 app
+          test: /[\\/]node_modules[\\/]element-ui[\\/]/
+        }
+      }
+    },
+    runtimeChunk: 'single',
+    minimizer: [
+      new UglifyJsPlugin({
+        uglifyOptions: {
+          mangle: {
+            safari10: true
+          }
+        },
+        sourceMap: config.build.productionSourceMap,
+        cache: true,
+        parallel: true
+      }),
+      // Compress extracted CSS. We are using this plugin so that possible
+      // duplicated CSS from different components can be deduped.
+      new OptimizeCSSAssetsPlugin()
+    ]
+  }
+})
+
+if (config.build.productionGzip) {
+  const CompressionWebpackPlugin = require('compression-webpack-plugin')
+
+  webpackConfig.plugins.push(
+    new CompressionWebpackPlugin({
+      algorithm: 'gzip',
+      test: new RegExp(
+        '\\.(' + config.build.productionGzipExtensions.join('|') + ')$'
+      ),
+      threshold: 10240,
+      minRatio: 0.8
+    })
+  )
+}
+
+if (config.build.generateAnalyzerReport || config.build.bundleAnalyzerReport) {
+  const BundleAnalyzerPlugin = require('webpack-bundle-analyzer')
+    .BundleAnalyzerPlugin
+
+  if (config.build.bundleAnalyzerReport) {
+    webpackConfig.plugins.push(
+      new BundleAnalyzerPlugin({
+        analyzerPort: 8080,
+        generateStatsFile: false
+      })
+    )
+  }
+
+  if (config.build.generateAnalyzerReport) {
+    webpackConfig.plugins.push(
+      new BundleAnalyzerPlugin({
+        analyzerMode: 'static',
+        reportFilename: 'bundle-report.html',
+        openAnalyzer: false
+      })
+    )
+  }
+}
+
+module.exports = webpackConfig