tauri-latest-json

Generate a latest.json file for Tauri auto-updates, supporting multi-platform builds (Windows, macOS Intel/ARM, Linux).

This crate scans your Tauri bundle directory for installers and outputs a valid latest.json for the Tauri Updater.

Features

• Detects installers: .msi, .exe, .dmg (Intel/ARM), .AppImage, .deb, .rpm, .tar.gz
• Auto-detects platform keys from filenames
• Reads version from package.json or Cargo.toml
• Generates a single multi-platform latest.json
• Works as both a library and a CLI

Install

Library:

[dependencies]
tauri-latest-json = "0.2.4"

CLI:

cargo install tauri-latest-json

CLI Usage

tauri-latest-json <download_url_base> <notes>

Notes can contain spaces without quotes; all remaining args are combined.

Example:

tauri-latest-json https://example.com/downloads Initial release with details

latest.json is written to the current working directory.

Optional signature verification

Enable compile-time verification of signatures using the Tauri CLI:

cargo install tauri-cli
cargo run --features verify-signature -- <download_url_base> <notes>

Library Usage

use tauri_latest_json::generate_latest_json_auto;

fn main() {
    let download_url = "https://example.com/downloads";
    let notes = "Initial release";
    generate_latest_json_auto(download_url, notes).unwrap();
}

Example

cargo run --example basic

If the paths are correct, you’ll see:

✅ latest.json generated successfully

Requirements

• Valid Tauri updater configuration (see the Tauri Updater docs)
• A Tauri signing key

pnpm tauri signer generate -w ~/.tauri/myapp.key

Platform Detection

File Extension	Platform Key
.msi, .exe	windows-x86_64
.dmg (Intel)	darwin-x86_64
.dmg (ARM)	darwin-aarch64
.AppImage, .deb, .rpm, .tar.gz (x64)	linux-x86_64
.AppImage, .deb, .rpm, .tar.gz (ARM)	linux-aarch64

Contributing

See CONTRIBUTING.md. Please also read our Code of Conduct.

License

MIT — see LICENSE.