Webpack实现多页面打包的方法步骤

npm i glob -D

'use strict';
// 引入插件
const glob = require('glob');
const path = require('path');
const webpack = require('webpack');
 
// 页面打包插件
const HtmlWebpackPlugin = require('html-webpack-plugin');
// 自动清理插件
const CleanWebpackPlugin = require('clean-webpack-plugin');
// 优化控制台输出
const FriendlyErrorsWebpackPlugin = require('friendly-errors-webpack-plugin');
 
// 动态计算多页面打包
const setMPA = () => {
    const entry = {};
    const htmlWebpackPlugins = [];
    // 获取本地按规则修改好的文件
    const entryFiles = glob.sync(path.join(__dirname, './src/*/index.js'));
 
    Object.keys(entryFiles).map((index) => {
 
        const entryFile = entryFiles[index];
 
        // 'my-project/src/index/index.js'
 
        const match = entryFile.match(/src\/(.*)\/index\.js/);
        // 获取页面文件名
        const pageName = match && match[1];
 
        entry[pageName] = entryFile;
        // 根据本地定义的页面文件数量来定义htmlWebpackPlugin
        htmlWebpackPlugins.push(
            new HtmlWebpackPlugin({
                template: path.join(__dirname, `src/${pageName}/index.html`),
                filename: `${pageName}.html`,
                chunks: [pageName],
                inject: true,
                minify: {
                    HTML5: true,
                    collapseWhitespace: true,
                    preserveLineBreaks: false,
                    minifyCSS: true,
                    minifyJS: true,
                    removeComments: false
                }
            })
        );
    });
 
    return {
        entry,
        htmlWebpackPlugins
    }
}
 
const { entry, htmlWebpackPlugins } = setMPA();
 
module.exports = {
    // 入口文件
    entry: entry,
    // 输出文件
    output: {
        path: path.join(__dirname, 'dist'),
        filename: '[name].js'
    },
    // 开发模式
    mode: 'development',
    module: {
        rules: [
            {
                test: /.js$/,
                use: 'babel-loader'
            },
            {
                test: /.css$/,
                use: [
                    'style-loader',
                    'css-loader'
                ]
            },
            {
                test: /.less$/,
                use: [
                    'style-loader',
                    'css-loader',
                    'less-loader'
                ]
            },
            {
                test: /.(png|jpg|gif|jpeg)$/,
                use: [
                    {
                        loader: 'url-loader',
                        options: {
                            limit: 10240
                        }
                    }
                ]
            },
            {
                test: /.(woff|woff2|eot|ttf|otf)$/,
                use: 'file-loader'
            }
        ]
    },
    plugins: [
        // 热更新插件
        new webpack.HotModuleReplacementPlugin(),
        // 自动清理插件
        new CleanWebpackPlugin(),
        // 简化打包控制台输出
        new FriendlyErrorsWebpackPlugin()
 
    ].concat(htmlWebpackPlugins),
 
    // 热更新相关配置
    devServer: {
        // 基本目录
        contentBase: './dist',
        // 热更新
        hot: true,
        // 只输出报错
        stats: 'errors-only'
    },
    devtool: 'cheap-source-map'
};