Function main

homeworks_rust/src/main.rs:84–157

()

}

fn main() {
    
    let args: Args = argh::from_env();    

    if args.version {
        println!("v{}", VERSION);
        std::process::exit(0);
    }    

    if args.nested.is_none() {
        println!("\n{}\n", WELCOME);
    }

    if !Path::new("info.toml").exists() {
        println!(
            "{} must be run from the rustlings directory",
            std::env::current_exe().unwrap().to_str().unwrap()
        );
        println!("Try `cd rustlings/`!");
        std::process::exit(1);
    }

    if !rustc_exists() {
        println!("We cannot find `rustc`.");
        println!("Try running `rustc --version` to diagnose your problem.");
        println!("For instructions on how to install Rust, check the README.");
        std::process::exit(1);
    }

    // Gets homework structs
    let toml_str = &fs::read_to_string("info.toml").unwrap();
    let exercises = toml::from_str::<ExerciseList>(toml_str).unwrap().exercises;
    let verbose = args.nocapture;

    let command = args.nested.unwrap_or_else(|| {
        println!("{}\n", DEFAULT_OUT);
        std::process::exit(0);
    });

    println!("\n\nEND\n\n");    

    match command {  

        Subcommands::Run(subargs) => {
            let exercise = find_exercise(&subargs.name, &exercises);
            run(exercise, verbose).unwrap_or_else(|_| std::process::exit(1));
        }

        Subcommands::Hint(subargs) => {
            let exercise = find_exercise(&subargs.name, &exercises);
            println!("{}", exercise.hint);
        }

        Subcommands::Verify(_subargs) => {
            verify(&exercises, verbose).unwrap_or_else(|_| std::process::exit(1));
        }
        
        Subcommands::Homework(subargs) => match homework(&exercises, verbose, subargs.name) {