如何在Webpack中使用workboxPlugin.InjectManifest？

Question

我按照https://developers.google.com/web/tools/workbox/guides/using-bundlers上的步骤进行操作，但构建后的dist/sw.js文件根本未经过Webpack处理。所有导入语句仍然存在且未被更改，注释也没有被删除，并且Terser也没有进行代码压缩。

我做错了什么？是否应该将sw.js首先作为单独的入口进行构建，然后将输出传递给插件？

dist/sw.js (实际输出，除了注入的第一行之外，没有进行任何处理)

importScripts("/dist/precache-manifest.f26179340acee9ac29fc6c689e5cb0c5.js", "https://storage.googleapis.com/workbox-cdn/releases/4.3.1/workbox-sw.js");

/* global clients */

import { registerRoute } from 'workbox-routing'
import { CacheFirst, NetworkFirst } from 'workbox-strategies'
import { StaleWhileRevalidate } from 'workbox-strategies'
import { setConfig, skipWaiting, clientsClaim } from 'workbox-sw'
import { Plugin as BroadcastUpdatePlugin } from 'workbox-broadcast-update'
import { Plugin as ExpirationPlugin } from 'workbox-expiration'
import { Plugin as CacheableResponsePlugin } from 'workbox-cacheable-response'

./src/sw.js

/* global clients */

import { registerRoute } from 'workbox-routing'
import { CacheFirst, NetworkFirst } from 'workbox-strategies'
import { StaleWhileRevalidate } from 'workbox-strategies'
import { setConfig, skipWaiting, clientsClaim } from 'workbox-sw'
import { Plugin as BroadcastUpdatePlugin } from 'workbox-broadcast-update'
import { Plugin as ExpirationPlugin } from 'workbox-expiration'
import { Plugin as CacheableResponsePlugin } from 'workbox-cacheable-response'

webpack.common.js

module.exports = {
    entry: {
        main: './src/index.js',
    },
    output: {
        path: path.join(__dirname, 'public', 'dist'),
        publicPath: '/dist/',
        filename: '[name].bundle.js'
    },
    module: {
        rules: [
            {
                loader: 'babel-loader',
                test: /\.js$/,
                exclude: /node_modules/
            },
            {
                test: /\.css$/,
                use: ['style-loader', 'css-loader']
            }
        ]
    },
    plugins: [
        new workboxPlugin.InjectManifest({
            swSrc: './src/sw.js',
            swDest: 'sw.js'
        })
    ]
}

webpack.prod.config.js

module.exports = merge(common, {
    devtool: 'nosources-source-map',
    stats: {
        chunkModules: true,
        // Examine all modules
        maxModules: Infinity,
        // Display bailout reasons
        optimizationBailout: false
    },
    plugins: [new CleanWebpackPlugin({ verbose: true })],
    optimization: {
        // Use terser instead of the default Uglify since service
        // worker code does not need to be transpiled to ES5.
        minimizer: [
            new Terser({
                // Ensure .mjs files get included.
                test: /\.m?js$/
            })
        ]
    }
})

Github 上的相关问题：https://github.com/GoogleChrome/workbox/issues/1513

- Henry

Answer 1

我们正在积极开发一个重写版的InjectManifest插件，它将在 swSrc 上执行 webpack 子编译，并填充预缓存清单。

https://github.com/GoogleChrome/workbox/issues/1513#issuecomment-506482323

- Henry