tauri-latest-json 0.1.2

# tauri-latest-json

Generate a `latest.json` file for [Tauri](https://v2.tauri.app/) auto-updates, supporting **multi-platform** builds (Windows, macOS Intel/ARM, Linux).

This crate scans your Tauri `bundle` directory for installers, signs each one with your Tauri private key, and outputs a valid `latest.json` for the [Tauri Updater](https://v2.tauri.app/plugin/updater/).

## ✨ Features

- Supports `.msi`, `.exe`, `.dmg` (Intel & ARM), and `.AppImage`
- Automatically detects platform from installer filename
- Signs each installer using `tauri signer`
- Reads version from `package.json` (JavaScript Tauri) or `Cargo.toml` (Rust-only Tauri)
- Outputs a fully valid `latest.json` with multiple platforms
- Easy to integrate into CI/CD pipelines

## 📦 Installation

Add to `Cargo.toml`:

```toml
[dependencies]
tauri-latest-json = "0.1.2"
```

---

## 📦 Run the example

```bash
cargo run --example basic
```

If the paths are correct, you’ll get:

```
✅ latest.json generated successfully
```

And a `latest.json` file in your project root.

---

## 🚀 Usage

```rust
use std::path::Path;
use tauri_latest_json::generate_latest_json;

fn main() {
  let bundle_dir = Path::new("src-tauri/target/release/bundle");
  let download_url = "https://example.com/downloads";
  let release_notes = "Initial release";

  match generate_latest_json_auto(bundle_dir, download_url, release_notes) {
      Ok(_) => println!("✅ latest.json generated successfully"),
      Err(e) => eprintln!("❌ Failed to generate latest.json: {e}"),
  }
}
```

After running, you'll get:

```json
{
  "version": "1.0.0",
  "notes": "Bug fixes and performance improvements",
  "pub_date": "2025-08-10T14:15:22Z",
  "platforms": {
    "windows-x86_64": {
      "signature": "base64-signature-here",
      "url": "https://example.com/downloads/app_1.0.0_x64_en-US.msi"
    },
    "darwin-x86_64": {
      "signature": "...",
      "url": "..."
    },
    "linux-x86_64": {
      "signature": "...",
      "url": "..."
    }
  }
}
```

## 🔑 Requirements

- **Tauri CLI** installed:

  ```bash
  cargo install tauri-cli
  ```

- A valid Tauri private key:

  ```bash
  tauri signer generate -o ~/.tauri/private.pem
  ```

## 🛠 Platform detection

| File Extension | Platform Key     |
| -------------- | ---------------- |
| `.msi`, `.exe` | `windows-x86_64` |
| `.dmg` (Intel) | `darwin-x86_64`  |
| `.dmg` (ARM)   | `darwin-aarch64` |
| `.AppImage`    | `linux-x86_64`   |

## 📄 License

Licensed under the MIT License — see [LICENSE](LICENSE) for details.