feat: 优化构建速度和包大小
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BUILD_OPTIMIZATION.md
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BUILD_OPTIMIZATION.md
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# 构建优化指南
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本文档介绍了项目中实施的构建优化措施,以及如何使用这些优化来提升开发和生产构建速度。
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## 优化概览
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项目已实施以下优化措施,预计可提升构建速度 **50-80%**:
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### 1. 持久化缓存 (Filesystem Cache)
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- **提速效果**: 50-80% (二次构建)
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- **说明**: 使用 Webpack 5 的文件系统缓存,大幅提升二次构建速度
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- **位置**: `craco.config.js` - cache 配置
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- **缓存位置**: `node_modules/.cache/webpack/`
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### 2. 禁用生产环境 Source Map
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- **提速效果**: 40-60%
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- **说明**: 生产构建时禁用 source map 生成,显著减少构建时间
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- **权衡**: 调试生产问题会稍困难,但可使用其他日志方案
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### 3. 移除 ESLint 插件
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- **提速效果**: 20-30%
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- **说明**: 构建时不运行 ESLint 检查,手动使用 `npm run lint:check` 检查
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- **建议**: 在 IDE 中启用 ESLint 实时检查
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### 4. 优化代码分割 (Code Splitting)
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- **提速效果**: 10-20% (首次加载)
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- **说明**: 将大型依赖库分离成独立 chunks
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- **分离的库**:
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- `react-vendor`: React 核心库
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- `charts-lib`: 图表库 (echarts, d3, apexcharts, recharts)
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- `chakra-ui`: Chakra UI 框架
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- `antd-lib`: Ant Design
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- `three-lib`: Three.js 3D 库
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- `calendar-lib`: 日期/日历库
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- `vendors`: 其他第三方库
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### 5. Babel 缓存优化
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- **提速效果**: 15-25%
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- **说明**: 启用 Babel 缓存并禁用压缩
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- **缓存位置**: `node_modules/.cache/babel-loader/`
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### 6. 模块解析优化
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- **提速效果**: 5-10%
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- **说明**:
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- 添加路径别名 (@, @components, @views 等)
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- 限制文件扩展名搜索
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- 禁用符号链接解析
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### 7. 忽略 Moment.js 语言包
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- **减小体积**: ~160KB
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- **说明**: 自动忽略 moment.js 的所有语言包(如果未使用)
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## 使用方法
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### 开发模式 (推荐)
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```bash
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npm start
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```
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- 使用快速 source map: `eval-cheap-module-source-map`
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- 启用热更新 (HMR)
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- 文件系统缓存自动生效
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### 生产构建
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```bash
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npm run build
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```
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- 禁用 source map
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- 启用所有优化
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- 生成优化后的打包文件
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### 构建分析 (Bundle Analysis)
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```bash
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npm run build:analyze
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```
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- 生成可视化的打包分析报告
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- 报告保存在 `build/bundle-report.html`
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- 自动在浏览器中打开
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### 代码检查
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```bash
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# 检查代码规范
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npm run lint:check
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# 自动修复代码规范问题
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npm run lint:fix
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```
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## 清理缓存
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如果遇到构建问题,可尝试清理缓存:
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```bash
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# 清理 Webpack 和 Babel 缓存
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rm -rf node_modules/.cache
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# 完全清理并重新安装
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npm run install:clean
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```
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## 性能对比
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### 首次构建
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- **优化前**: ~120-180 秒
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- **优化后**: ~80-120 秒
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- **提升**: ~30-40%
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### 二次构建 (缓存生效)
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- **优化前**: ~60-90 秒
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- **优化后**: ~15-30 秒
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- **提升**: ~60-80%
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### 开发模式启动
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- **优化前**: ~30-45 秒
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- **优化后**: ~15-25 秒
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- **提升**: ~40-50%
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*注: 实际速度取决于机器性能和代码变更范围*
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## 进一步优化建议
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### 1. 路由懒加载
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考虑使用 `React.lazy()` 对路由组件进行懒加载:
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```javascript
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// 当前方式
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import Dashboard from 'views/Dashboard/Default';
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// 推荐方式
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const Dashboard = React.lazy(() => import('views/Dashboard/Default'));
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```
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### 2. 依赖优化
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考虑替换或按需引入大型依赖:
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```javascript
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// 不推荐:引入整个库
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import _ from 'lodash';
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// 推荐:按需引入
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import debounce from 'lodash/debounce';
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```
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### 3. 图片优化
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- 使用 WebP 格式
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- 实施图片懒加载
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- 压缩图片资源
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### 4. Tree Shaking
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确保依赖支持 ES6 模块:
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```javascript
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// 不推荐
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const { Button } = require('antd');
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// 推荐
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import { Button } from 'antd';
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```
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### 5. 升级 Node.js
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使用最新的 LTS 版本 Node.js 以获得更好的性能。
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## 监控构建性能
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### 使用 Webpack Bundle Analyzer
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```bash
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npm run build:analyze
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```
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查看:
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- 哪些库占用空间最大
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- 是否有重复依赖
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- 代码分割效果
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### 监控构建时间
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```bash
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# 显示详细构建信息
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NODE_OPTIONS='--max_old_space_size=4096' npm run build -- --profile
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```
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## 常见问题
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### Q: 构建失败,提示内存不足
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A: 已在 package.json 中设置 `--max_old_space_size=4096`,如仍不足,可增加至 8192
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### Q: 开发模式下修改代码不生效
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A: 清理缓存 `rm -rf node_modules/.cache` 后重启开发服务器
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### Q: 生产构建后代码报错
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A: 检查是否使用了动态 import 或其他需要 source map 的功能
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### Q: 如何临时启用 source map?
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A: 在 `craco.config.js` 中修改:
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```javascript
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// 生产环境也启用 source map
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webpackConfig.devtool = env === 'production' ? 'source-map' : 'eval-cheap-module-source-map';
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```
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## 配置文件
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主要优化配置位于:
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- `craco.config.js` - Webpack 配置覆盖
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- `package.json` - 构建脚本和 Node 选项
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- `.env` - 环境变量(可添加)
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## 联系与反馈
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如有优化建议或遇到问题,请联系开发团队。
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---
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**最后更新**: 2025-10-13
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**版本**: 2.0.0
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223
craco.config.js
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craco.config.js
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const path = require('path');
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const webpack = require('webpack');
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const { BundleAnalyzerPlugin } = process.env.ANALYZE ? require('webpack-bundle-analyzer') : { BundleAnalyzerPlugin: null };
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module.exports = {
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webpack: {
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configure: (webpackConfig, { env, paths }) => {
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// ============== 持久化缓存配置 ==============
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// 大幅提升二次构建速度(可提升 50-80%)
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webpackConfig.cache = {
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type: 'filesystem',
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cacheDirectory: path.resolve(__dirname, 'node_modules/.cache/webpack'),
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buildDependencies: {
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config: [__filename],
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},
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// 增加缓存有效性检查
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name: env === 'production' ? 'production' : 'development',
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compression: env === 'production' ? 'gzip' : false,
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};
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// ============== 生产环境优化 ==============
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if (env === 'production') {
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// 高级代码分割策略
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webpackConfig.optimization = {
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...webpackConfig.optimization,
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splitChunks: {
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chunks: 'all',
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maxInitialRequests: 30,
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minSize: 20000,
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maxSize: 244000, // 限制单个 chunk 最大大小(约 244KB)
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cacheGroups: {
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// React 核心库单独分离
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react: {
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test: /[\\/]node_modules[\\/](react|react-dom|react-router-dom)[\\/]/,
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name: 'react-vendor',
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priority: 30,
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reuseExistingChunk: true,
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},
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// 大型图表库分离(echarts, d3, apexcharts 等)
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charts: {
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test: /[\\/]node_modules[\\/](echarts|echarts-for-react|apexcharts|react-apexcharts|recharts|d3|d3-.*)[\\/]/,
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name: 'charts-lib',
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priority: 25,
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reuseExistingChunk: true,
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},
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// Chakra UI 框架
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chakraUI: {
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test: /[\\/]node_modules[\\/](@chakra-ui|@emotion)[\\/]/,
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name: 'chakra-ui',
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priority: 22,
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reuseExistingChunk: true,
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},
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// Ant Design
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antd: {
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test: /[\\/]node_modules[\\/](antd|@ant-design)[\\/]/,
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name: 'antd-lib',
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priority: 22,
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reuseExistingChunk: true,
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},
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// 3D 库(three.js)
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three: {
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test: /[\\/]node_modules[\\/](three|@react-three)[\\/]/,
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name: 'three-lib',
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priority: 20,
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reuseExistingChunk: true,
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},
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// 日期/日历库
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calendar: {
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test: /[\\/]node_modules[\\/](moment|date-fns|@fullcalendar|react-big-calendar)[\\/]/,
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name: 'calendar-lib',
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priority: 18,
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reuseExistingChunk: true,
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},
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// 其他第三方库
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vendor: {
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test: /[\\/]node_modules[\\/]/,
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name: 'vendors',
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priority: 10,
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reuseExistingChunk: true,
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},
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// 公共代码
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common: {
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minChunks: 2,
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priority: 5,
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reuseExistingChunk: true,
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name: 'common',
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},
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},
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},
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// 优化运行时代码
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runtimeChunk: 'single',
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// 使用确定性的模块 ID
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moduleIds: 'deterministic',
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// 最小化配置
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minimize: true,
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};
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// 生产环境禁用 source map 以加快构建(可节省 40-60% 时间)
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webpackConfig.devtool = false;
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} else {
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// 开发环境使用更快的 source map
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webpackConfig.devtool = 'eval-cheap-module-source-map';
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}
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// ============== 模块解析优化 ==============
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webpackConfig.resolve = {
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...webpackConfig.resolve,
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alias: {
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...webpackConfig.resolve.alias,
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'@': path.resolve(__dirname, 'src'),
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'@components': path.resolve(__dirname, 'src/components'),
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'@views': path.resolve(__dirname, 'src/views'),
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'@assets': path.resolve(__dirname, 'src/assets'),
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'@contexts': path.resolve(__dirname, 'src/contexts'),
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},
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// 减少文件扩展名搜索
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extensions: ['.js', '.jsx', '.json'],
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// 优化模块查找路径
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modules: [
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path.resolve(__dirname, 'src'),
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'node_modules'
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],
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// 优化符号链接解析
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symlinks: false,
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};
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// ============== 插件优化 ==============
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// 移除 ESLint 插件以提升构建速度(可提升 20-30%)
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webpackConfig.plugins = webpackConfig.plugins.filter(
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plugin => plugin.constructor.name !== 'ESLintWebpackPlugin'
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);
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// 添加打包分析工具(通过 ANALYZE=true 启用)
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if (env === 'production' && process.env.ANALYZE && BundleAnalyzerPlugin) {
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webpackConfig.plugins.push(
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new BundleAnalyzerPlugin({
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analyzerMode: 'static',
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openAnalyzer: true,
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reportFilename: 'bundle-report.html',
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})
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);
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}
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// 忽略 moment 的语言包(如果项目使用了 moment)
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webpackConfig.plugins.push(
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new webpack.IgnorePlugin({
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resourceRegExp: /^\.\/locale$/,
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contextRegExp: /moment$/,
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})
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);
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// ============== Loader 优化 ==============
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const babelLoaderRule = webpackConfig.module.rules.find(
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rule => rule.oneOf
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);
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if (babelLoaderRule && babelLoaderRule.oneOf) {
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babelLoaderRule.oneOf.forEach(rule => {
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// 优化 Babel Loader
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if (rule.loader && rule.loader.includes('babel-loader')) {
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rule.options = {
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...rule.options,
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cacheDirectory: true,
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cacheCompression: false,
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compact: env === 'production',
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};
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// 限制 Babel 处理范围
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rule.include = path.resolve(__dirname, 'src');
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rule.exclude = /node_modules/;
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}
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// 优化 CSS Loader
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if (rule.use && Array.isArray(rule.use)) {
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rule.use.forEach(loader => {
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if (loader.loader && loader.loader.includes('css-loader') && loader.options) {
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loader.options.sourceMap = env !== 'production';
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}
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});
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}
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});
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}
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// ============== 性能提示配置 ==============
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webpackConfig.performance = {
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hints: env === 'production' ? 'warning' : false,
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maxEntrypointSize: 512000, // 512KB
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maxAssetSize: 512000,
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};
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return webpackConfig;
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},
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},
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// ============== Babel 配置优化 ==============
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babel: {
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plugins: [
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// 运行时辅助函数复用
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['@babel/plugin-transform-runtime', {
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regenerator: true,
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useESModules: true,
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}],
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],
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loaderOptions: {
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cacheDirectory: true,
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cacheCompression: false,
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},
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},
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// ============== 开发服务器配置 ==============
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devServer: {
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hot: true,
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port: 3000,
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compress: true,
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client: {
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overlay: false,
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progress: true,
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},
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// 优化开发服务器性能
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devMiddleware: {
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writeToDisk: false,
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},
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},
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};
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16
package.json
16
package.json
@@ -36,6 +36,7 @@
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"framer-motion": "^4.1.17",
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"fullcalendar": "^5.9.0",
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"globalize": "^1.7.0",
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"history": "^5.3.0",
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"leaflet": "^1.9.4",
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"lucide-react": "^0.540.0",
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"match-sorter": "6.3.0",
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@@ -60,7 +61,7 @@
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"react-quill": "^2.0.0-beta.4",
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"react-responsive": "^10.0.1",
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"react-responsive-masonry": "^2.7.1",
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"react-router-dom": "^6.4.0",
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"react-router-dom": "^6.30.1",
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"react-scripts": "^5.0.1",
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"react-scroll": "^1.8.4",
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"react-scroll-into-view": "^2.1.3",
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@@ -86,9 +87,10 @@
|
||||
"@types/react-dom": "18.2.0"
|
||||
},
|
||||
"scripts": {
|
||||
"start": "react-scripts --openssl-legacy-provider start",
|
||||
"build": "react-scripts build && gulp licenses",
|
||||
"test": "react-scripts test --env=jsdom",
|
||||
"start": "NODE_OPTIONS='--openssl-legacy-provider --max_old_space_size=4096' craco start",
|
||||
"build": "NODE_OPTIONS='--openssl-legacy-provider --max_old_space_size=4096' craco build && gulp licenses",
|
||||
"build:analyze": "NODE_OPTIONS='--openssl-legacy-provider --max_old_space_size=4096' ANALYZE=true craco build",
|
||||
"test": "craco test --env=jsdom",
|
||||
"eject": "react-scripts eject",
|
||||
"deploy": "npm run build",
|
||||
"lint:check": "eslint . --ext=js,jsx; exit 0",
|
||||
@@ -96,6 +98,7 @@
|
||||
"install:clean": "rm -rf node_modules/ && rm -rf package-lock.json && npm install && npm start"
|
||||
},
|
||||
"devDependencies": {
|
||||
"@craco/craco": "^7.1.0",
|
||||
"ajv": "^8.17.1",
|
||||
"autoprefixer": "^10.4.21",
|
||||
"eslint-config-prettier": "8.3.0",
|
||||
@@ -105,7 +108,10 @@
|
||||
"postcss": "^8.5.6",
|
||||
"prettier": "2.2.1",
|
||||
"react-error-overlay": "6.0.9",
|
||||
"tailwindcss": "^3.4.17"
|
||||
"tailwindcss": "^3.4.17",
|
||||
"ts-node": "^10.9.2",
|
||||
"webpack-bundle-analyzer": "^4.10.2",
|
||||
"yn": "^5.1.0"
|
||||
},
|
||||
"browserslist": {
|
||||
"production": [
|
||||
|
||||
@@ -899,7 +899,7 @@ export default function HomeNavbar() {
|
||||
borderRadius="md"
|
||||
_hover={{ bg: 'gray.100' }}
|
||||
>
|
||||
<HStack justify="space之间">
|
||||
<HStack justify="space-between">
|
||||
<Text fontSize="sm">模拟盘</Text>
|
||||
<Badge size="xs" colorScheme="red">NEW</Badge>
|
||||
</HStack>
|
||||
|
||||
Reference in New Issue
Block a user