Rust as script

README

Run a rust file as a script!

1: Install nightly
$ rustup install nightly

2: Set the script as executable
$ chmod +x script.rs

3: Profit!
$ ./script.rs
John Red Pants
John Red Shorts
John Red Sweater
John Red Hat
John Green Pants
[...abbreviated...]


Dependencies are listed as in Cargo.toml.
The [profile.dev] opt-level = 3 is to run in with optimizations, it can be omitted.

script.rs

#!/usr/bin/env -S cargo +nightly -Zscript
```cargo
[package]
edition = "2021"
[profile.dev]
opt-level = 3
[dependencies]
itertools = "0.11"
```

use itertools::Itertools;

fn main() {
    let names = vec!["John", "Kirsten", "Bobby", "Ramona", "Peter"];
    let colors = vec!["Red", "Green", "Blue", "Yellow", "Purple"];
    let clothes = vec!["Pants", "Shorts", "Sweater", "Hat"];

    let s = vec![names, colors, clothes]
        .iter()
        .multi_cartesian_product()
        .map(|tv| tv.iter().join(" "))
        .join("\n");

    println!("{s}");
}