gitnu 0.2.2

gitnu indexes your git status so you can use numbers instead of filenames.
Documentation 
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fn get_range(arg: &str) -> Option<[usize; 2]> {
    let (a, b) = arg.split_once("-")?;
    let mut res = [a.parse().ok()?, b.parse().ok()?];
    res.sort();
    Some(res)
}

fn add_range(arg: &str, args: &mut Vec<String>) {
    let mut push_range = |[start, end]: [usize; 2]| {
        for i in start..end + 1 {
            args.push(i.to_string());
        }
    };
    match get_range(&arg) {
        Some(v) => push_range(v),
        _ => args.push(arg.to_string()),
    }
}

pub fn load(args: Vec<String>) -> Vec<String> {
    let mut res = Vec::new();
    let mut it = args.iter();
    while let Some(arg) = it.next() {
        add_range(&arg, &mut res);
    }
    res
}