Derive macros for click-rs CLI library.

This crate provides procedural macros for automatically generating CommandLike implementations from Rust structs.

Example

use click_derive::Command;

#[derive(Command)]
#[command(name = "greet")]
/// A friendly greeter
struct Greet {
    /// Name to greet
    #[argument]
    name: String,

    /// Number of times to greet
    #[option(short, long, default = 1)]
    count: i32,
}

impl Greet {
    fn run(&self, _ctx: &click::Context) -> click::Result<()> {
        for _ in 0..self.count {
            println!("Hello, {}!", self.name);
        }
        Ok(())
    }
}