fredrik-hammar / rust-script

Run Rust files and expressions as scripts without any setup or compilation step.

rust-script

Run Rust script files without any setup or explicit compilation step, with seamless use of crates specified as dependencies inside the scripts.

$ cargo install rust-script
[...]

$ cat script.rs
#!/usr/bin/env rust-script
//! Dependencies can be specified in the script file itself as follows:
//!
//! ```cargo
//! [dependencies]
//! rand = "0.8.0"
//! ```

use rand::prelude::*;

fn main() {
    let x: u64 = random();
    println!("A random number: {}", x);
}

$ ./script.rs
A random number: 9240261453149857564

Rust version 1.64 or newer required.

See the documentation at rust-script.org.

Related projects

• cargo-script - the unmaintained project that rust-script was forked from.
• cargo-eval - maintained fork of cargo-script.
• cargo-play - local Rust playground.
• runner - tool for running Rust snippets.
• scriptisto - language-agnostic "shebang interpreter" that enables you to write scripts in compiled languages.
• official cargo-script RFC - in progress integration into cargo

License

rust-script is primarily distributed under the terms of both the MIT license and the Apache License (Version 2.0).