webpack.prod.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 ExtractTextPlugin = require('extract-text-webpack-plugin')
const OptimizeCSSPlugin = require('optimize-css-assets-webpack-plugin')
const UglifyJsPlugin = require('uglifyjs-webpack-plugin')
const CSSSplitWebpackPlugin = require('css-split-webpack-plugin').default;
const BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin;
// const GenerateAssetPlugin = require('generate-asset-webpack-plugin')
const env = require('../config/prod.env')
    // const fs = require('fs')

// const content = `getVersion('${+new Date()}')`

// fs.writeFile(config.build.assetsRoot + '/version.js', content, function(err) {
//     if (err) {
//         return console.error(err)
//     }
//     // console.log('The file was saved')
// })

const webpackConfig = merge(baseWebpackConfig, {
    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].js?t=[chunkhash:5]'),
        chunkFilename: utils.assetsPath('js/[name].[chunkhash].js?t=[chunkhash:5]')
    },
    plugins: [
        // http://vuejs.github.io/vue-loader/en/workflow/production.html
        new webpack.DefinePlugin({
            'process.env': env
        }),
        new UglifyJsPlugin({
            exclude: [/en_US/, /mall_CN/, /zh_CN/, /zh_TW/],
            uglifyOptions: {
                compress: {
                    warnings: false
                }
            },
            // sourceMap: config.build.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.build.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: config.build.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',
            chunks: ['manifest', 'vendor', 'app']
        }),
        // new HtmlWebpackPlugin({
        //     filename: config.build.xincheng,
        //     template: 'xincheng.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',
        //     chunks: ['manifest', 'vendor', 'app']
        //         //chunks: ['manifest', 'vendor', 'xincheng']
        // }),
        // 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.build.assetsSubDirectory,
            ignore: ['.*']
        }]),
        new CSSSplitWebpackPlugin({
            size: 4000,
            filename: 'static/css/[name]-[part].[ext]'
        }),
        new BundleAnalyzerPlugin({
            analyzerMode: 'server',
            analyzerHost: '127.0.0.1',
            analyzerPort: 8888,
            reportFilename: 'report.html',
            defaultSizes: 'parsed',
            openAnalyzer: true,
            generateStatsFile: false,
            statsFilename: 'stats.json',
            statsOptions: null,
            logLevel: 'info'
        }),
    ]
})

if (config.build.productionGzip) {
    const CompressionWebpackPlugin = require('compression-webpack-plugin')

    webpackConfig.plugins.push(
        new CompressionWebpackPlugin({
            asset: '[path].gz[query]',
            algorithm: 'gzip',
            test: new RegExp(
                '\\.(' +
                config.build.productionGzipExtensions.join('|') +
                ')$'
            ),
            threshold: 10240,
            minRatio: 0.8
        })
    )
}

if (config.build.bundleAnalyzerReport) {
    const BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin
    webpackConfig.plugins.push(new BundleAnalyzerPlugin())
}

// 打包输出可配置文件
// let createServerConfig = function(compilation) {
//     let cfgJson = {
//         ApiUrl: 'http://192.168.9.228:9500'
//     };
//     return JSON.stringify(cfgJson);
// }

// webpackConfig.plugins.push(
//     // 输出可配置文件
//     new GenerateAssetPlugin({
//         filename: 'serverconfig.json',
//         fn: (compilation, cb) => {
//             cb(null, createServerConfig(compilation));
//         },
//         extraFiles: []
//     })
// )

module.exports = webpackConfig