saksh-pc2/README.md

Check required packages in a JavaScript file

# 📦 saksh-pc2 - Node.js Package Checker

`saksh-pc2` is a lightweight CLI tool that scans a JavaScript file to detect external dependencies (`require()` and `import` statements). It then suggests an `npm install` command to install missing packages.

---


## 🚀 Installation

To install `saksh-pc2` globally, run:

```bash
npm install -g saksh-pc2
```

After installation, you can use the `saksh-pc2` command from anywhere in your terminal.

---


## 🛠️ Usage

### **1️⃣ Check External Dependencies**
To check which external packages are used in a JavaScript file, run:

```bash
saksh-pc2 app.js
```

### **2️⃣ Example Output**
If your file `app.js` contains:

```js
const express = require("express");
const mongoose = require("mongoose");

console.log("Server running...");
```

Running `saksh-pc2 app.js` will output:

```
📦 Detected external packages:

express
mongoose

💡 To install them, run:

npm install express mongoose
```

If no external packages are found:

```
✅ No external packages detected.
```

---


## ⚙️ Features
✅ **Scans JavaScript files for dependencies**  
✅ **Supports both `require()` (CommonJS) and `import` (ES Modules)**  
✅ **Generates an `npm install` command**  
✅ **Fast and lightweight**  
✅ **No dependencies on large libraries**

---


## 💡 Why Use `saksh-pc2`?
- Quickly check for missing dependencies before running your script.
- Prevent `Module Not Found` errors in production.
- Ensure all required packages are installed before deployment.
- Simple and fast, with minimal dependencies.

---


## 🔧 Advanced Usage

If you want to **automatically install missing dependencies**, you can modify the command:

```bash
saksh-pc2 app.js | xargs npm install
```

This will scan for missing packages and **install them automatically**.

---


## 🏗️ Contributing
If you find a bug or have suggestions, feel free to open an issue or submit a pull request.

---


## 📜 License
MIT License.

---


Happy coding! 🚀