# Content Injector Webpack Plugin 🔌

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简体中文 | [English](./README.md)

内容注入插件，支持灵活的资源修改策略。可轻松添加构建信息、项目版本等通用内容。

## ✨ 特性

- ⏱ **构建时间注入** - 自动添加打包时间戳
- 🎯 **精准定位** - 支持正则/函数匹配文件
- 📌 **位置控制** - 头部/尾部自由选择
- 🧩 **多格式支持** - 原生支持 JS/CSS/HTML 等文本资源
- 🔐 **哈希注入** - 支持基于文件内容的哈希值注入，可配置哈希算法和长度

## 📦 安装

```bash
npm install content-injector-webpack-plugin --save-dev
# 或
yarn add content-injector-webpack-plugin -D
# 或
pnpm install content-injector-webpack-plugin --save-dev
```

## 🚀 快速开始

```javascript
// webpack.config.js
const ContentInjector = require('content-injector-webpack-plugin');

module.exports = {
  plugins: [
    new ContentInjector({
      content: `/*! Build at: ${new Date().toLocaleString()} */\n`,
    }),
  ],
};
```

## ⚙️ 配置选项

| 参数            | 类型                                                 | 默认值    | 说明                              |
| --------------- | ---------------------------------------------------- | --------- | --------------------------------- |
| `content`       | `string \| () => string \| (hash: string) => string` | **必填**  | 插入内容，支持动态函数和哈希参数  |
| `match`         | `RegExp \| (file: string) => boolean`                | `/\.js$/` | 基础匹配条件                      |
| `include`       | `RegExp \| string \| (file: string) => boolean`      | -         | 白名单（优先级高于 match）        |
| `exclude`       | `RegExp \| string \| (file: string) => boolean`      | -         | 黑名单                            |
| `position`      | `'head' \| 'tail'`                                   | `'head'`  | 内容插入位置                      |
| `injectHash`    | `boolean`                                            | `false`   | 是否注入文件哈希值                |
| `hashAlgorithm` | `string`                                             | `md5`     | 哈希算法 (如: 'sha1', 'sha256'等) |
| `hashLength`    | `number`                                             | `8`       | 哈希值截取长度                    |

## 🌈 高级用法

### 动态内容生成

```javascript
new ContentInjector({
  content: () => `/*! 
    Version: ${process.env.APP_VERSION || 'dev'}
    Build: ${new Date().toISOString()}
  */`,
  match: /app\.js$/,
});
```

### 多文件类型处理

```javascript
new ContentInjector({
  content: '<!-- Built with Webpack -->',
  match: /\.(js|css|html)$/,
  exclude: /vendor/,
});
```

### 组合条件

```javascript
new ContentInjector({
  content: '// @generated',
  include: /src\/lib/,
  exclude: (file) => file.includes('test'),
  position: 'tail',
});
```

### 哈希值注入

```javascript
new ContentInjector({
  content: (hash) => {
    return `/*! APP v${require('./package.json').version} ContentHash: ${hash} */\n`;
  },
  match: /\.(js|css)$/,
  injectHash: true,
  hashAlgorithm: 'md5',
  hashLength: 12,
});
```

## 🐛 问题

如果您遇到任何问题或有改进建议，请点击这里 [Issue Report](https://github.com/z-ti/content-injector-webpack-plugin/issues)

## 📄 许可证

MIT © 2025 flyfox  
完整协议见 [MIT](https://github.com/z-ti/content-injector-webpack-plugin/blob/master/LICENSE) 文件