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@efanworks/mini-bundler

v1.0.7

Published

A minimal CommonJS require bundler

Downloads

84

Readme

mini-bundler

mini-bundler 是一个极简 JavaScript 打包工具,专注于 CommonJS 场景。
它把多个模块(require / module.exports)打包为一个可直接执行的 bundle,并内置最小运行时(__my_require__ + 模块缓存)。

技术栈

  • Node.js:文件读取、路径处理、CLI 执行环境
  • Babel AST 工具链:
    • @babel/parser:将源码解析为 AST
    • @babel/traverse:收集依赖、遍历语法树
    • @babel/generator:将转换后的 AST 生成代码
  • commander:实现命令行参数解析与命令入口

这个项目解决了什么问题

  • 把分散的 CommonJS 模块合并成单文件,方便运行与分发
  • 在浏览器侧模拟 Node 的 require 行为(模块查找、执行、导出)
  • 通过模块缓存避免重复执行,并支持循环依赖的基础处理
  • 以最小实现展示 bundler 核心原理,便于学习 webpack/runtime 思路

核心流程

  1. 从入口文件开始解析源码
  2. 扫描 require(...) 构建依赖图
  3. 转换模块代码并生成模块工厂函数
  4. 注入运行时模板(require + cache
  5. 输出最终 bundle 文件

安装依赖

npm install

打包示例项目

npm run build:example