cygnal/build/webpack.prod.conf.js

'use strict'
const fs = require('fs')
const path = require('path')
const svg2png = require('svg2png')
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 AppManifestWebpackPlugin = require('app-manifest-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 = require('../config/prod.env')

// List available locales, to fetch only the required locales from Moment.JS:
// Build a regexp that selects the locale's name without the JS extension (due
// to the way moment includes those) and ensure that's the last character to
// not include locale variants. See discussion in
// https://framagit.org/bnjbvr/kresus/merge_requests/448#note_130514
const locales = fs.readdirSync('src/i18n').filter(x => x != 'index.js').map(
    x => x.replace('.js', '')
);
const localesRegex = new RegExp(
    '(' + locales.join('|') + ')$'
);

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'),
        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.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 }
        }),
        new AppManifestWebpackPlugin({
            logo: path.resolve(__dirname, '../src/assets/logo.svg'),
            prefix: '.',
            output: '/static/icons-[hash:8]/',
            inject: true,
            persistentCache: true,
            config: {
                appName: 'Cyclassist',
                appDescription: "Track and share issues (work, interruption in routes, parked cars) on bike lanes in realtime.",
                developerName: 'Phyks (Lucas Verney)',
                developerURL: 'https://phyks.me',
            }
        }),
        // 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',
            ogURL: config.build.ogURL,
            ogImage: config.build.ogImage,
            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
        }),

        // Only keep the useful locales from Moment.
        new webpack.ContextReplacementPlugin(/moment[\/\\]locale$/, localesRegex),

        // copy custom static assets
        new CopyWebpackPlugin([
            {
                from: path.resolve(__dirname, '../static'),
                to: config.build.assetsSubDirectory,
                ignore: ['.*']
            },
            {
                from: path.resolve(__dirname, '../src/assets/logo.svg'),
                to: path.join(config.build.assetsSubDirectory, 'ogIcon.png'),
                transform (content, path) {
                    return Promise.resolve(svg2png(content, { width: 400, height: 400 }));
                }
            },
            {
                from: path.resolve(__dirname, '../humans.txt'),
                to: config.build.assetsRoot,
                ignore: ['.*']
            },
            {
                from: path.resolve(__dirname, '../robots.txt'),
                to: config.build.assetsRoot,
                ignore: ['.*']
            }
        ])
    ]
})

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())
}

module.exports = webpackConfig