由于 vue-cli 2 构建的项目是基于 webpack3，所以只能自己动手改动，至于升级 webpack4之后提升的编译速度以及各种插件自己去体验。
修改配置
1.替换插件 extract-text-webpack-plugin，使用 webpack4 推荐使用的插件 mini-css-extract-plugin
build/webpack.prod.conf.js
// ...省略
// const ExtractTextPlugin = require('extract-text-webpack-plugin')
const MiniCssExtractPlugin = require('mini-css-extract-plugin')
// ...省略
// ...省略
devtool: config.build.productionSourceMap ? config.build.devtool : false,
performance: {
hints: false
},
// ...省略
// ...省略
// // 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
// }),
new MiniCssExtractPlugin({
filename: utils.assetsPath('css/[name].css'),
chunkFilename: utils.assetsPath('css/[name].[contenthash].css')
}),
// ...省略
new HtmlWebpackPlugin({
filename: process.env.NODE_ENV === 'testing'
? 'index.html'
: config.build.index,
template: 'index.html',
favicon: 'favicon.ico',
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'
}),
// ...省略
2.去掉 webpack.optimize.CommonsChunkPlugin 相关配置
build/webpack.prod.conf.js：
// ...省略
// // 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
// }),
// ...省略
3.增加 optimization 配置
build/webpack.prod.conf.js
// ...省略
optimization: {
runtimeChunk: {
name: 'manifest'
},
minimizer: [
new UglifyJsPlugin({
cache: true,
parallel: true,
sourceMap: config.build.productionSourceMap,
uglifyOptions: {
warnings: false
}
}),
new OptimizeCSSPlugin({
cssProcessorOptions: config.build.productionSourceMap
? { safe: true, map: { inline: false } }
: { safe: true }
}),
],
splitChunks: {
chunks: 'async',
minSize: 30000,
minChunks: 1,
maxAsyncRequests: 5,
maxInitialRequests: 3,
name: false,
cacheGroups: {
vendors: {
test: /[\/]node_modules[\/]/,
name: 'vendor',
chunks: 'initial',
priority: -10
}
}
}
}
// ...省略
4.修改 utils 配置
build/utils.js
// ...省略
// const ExtractTextPlugin = require('extract-text-webpack-plugin')
const MiniCssExtractPlugin = require('mini-css-extract-plugin')
// ...省略
// ...省略
if (options.extract) {
// return ExtractTextPlugin.extract({
// use: loaders,
// fallback: 'vue-style-loader'
// })
return [MiniCssExtractPlugin.loader].concat(loaders)
} else {
return ['vue-style-loader'].concat(loaders)
}
// ...省略
5.增加 mode 配置
build/webpack.base.conf.js
module.exports = {
mode: process.env.NODE_ENV === 'production' ? 'production' : 'development',
context: path.resolve(__dirname, '../'),
// ...省略
6.修改 package.json 依赖版本
// ...省略
"devDependencies": {
"autoprefixer": "^9.3.1",
"babel-core": "^6.26.3",
"babel-eslint": "^10.0.1",
"babel-helper-vue-jsx-merge-props": "^2.0.3",
"babel-jest": "^23.6.0",
"babel-loader": "^7.1.5",
"babel-plugin-component": "^1.1.1",
"babel-plugin-dynamic-import-node": "^2.2.0",
"babel-plugin-syntax-jsx": "^6.18.0",
"babel-plugin-transform-es2015-modules-commonjs": "^6.26.2",
"babel-plugin-transform-runtime": "^6.23.0",
"babel-plugin-transform-vue-jsx": "^3.7.0",
"babel-polyfill": "^6.26.0",
"babel-preset-env": "^1.7.0",
"babel-preset-stage-2": "^6.24.1",
"babel-register": "^6.26.0",
"chalk": "^2.4.1",
"chromedriver": "^2.44.0",
"copy-webpack-plugin": "^4.6.0",
"cross-spawn": "^6.0.5",
"css-loader": "^1.0.1",
"eslint": "^4.19.1",
"eslint-config-standard": "^10.2.1",
"eslint-friendly-formatter": "^4.0.0",
"eslint-loader": "^2.1.1",
"eslint-plugin-import": "^2.14.0",
"eslint-plugin-node": "^8.0.0",
"eslint-plugin-promise": "^4.0.1",
"eslint-plugin-standard": "^3.1.0",
"eslint-plugin-vue": "^4.7.1",
"file-loader": "^2.0.0",
"filemanager-webpack-plugin": "^2.0.5",
"friendly-errors-webpack-plugin": "^1.7.0",
"html-webpack-plugin": "^3.2.0",
"mini-css-extract-plugin": "^0.4.5",
"jest": "^23.6.0",
"jest-serializer-vue": "^2.0.2",
"nightwatch": "^0.9.12",
"node-notifier": "^5.3.0",
"optimize-css-assets-webpack-plugin": "^5.0.1",
"ora": "^3.0.0",
"portfinder": "^1.0.19",
"postcss-import": "^12.0.1",
"postcss-loader": "^3.0.0",
"postcss-px2rem": "^0.3.0",
"postcss-url": "^8.0.0",
"rimraf": "^2.6.2",
"semver": "^5.6.0",
"shelljs": "^0.8.3",
"stylus": "^0.54.5",
"stylus-loader": "^3.0.2",
"uglifyjs-webpack-plugin": "^1.1.1",
"url-loader": "^1.1.2",
"vue-jest": "^3.0.0",
"vue-loader": "^14.2.2",
"vue-style-loader": "^4.1.2",
"vue-template-compiler": "^2.5.17",
"webpack": "^4.26.0",
"webpack-bundle-analyzer": "^3.0.3",
"webpack-cli": "^3.1.2",
"webpack-dev-server": "^3.1.10",
"webpack-merge": "^4.1.4"
},
// ...省略