const config = require('sapper/config/webpack.js') const terser = require('./terser.config') const webpack = require('webpack') const { mode, dev, resolve } = require('./shared.config') const legacyBabel = require('./legacyBabel.config') module.exports = { entry: config.serviceworker.entry(), output: config.serviceworker.output(), resolve, mode, devtool: dev ? 'inline-source-map' : 'source-map', module: { rules: [ process.env.LEGACY && legacyBabel() ].filter(Boolean) }, plugins: [ new webpack.DefinePlugin({ 'process.browser': true, 'process.env.NODE_ENV': JSON.stringify(mode), 'process.env.LEGACY': !!process.env.LEGACY, 'process.env.SAPPER_TIMESTAMP': process.env.SAPPER_TIMESTAMP || Date.now() }), terser() ] }