Function get_input_reader

generative/io/stdio.rs:15–23

(input: &Option<PathBuf>)

}

pub fn get_input_reader(input: &Option<PathBuf>) -> eyre::Result<BufReader<Box<dyn Read>>> {
    match input {
        Some(path) => {
            let file = File::open(path)?;
            Ok(BufReader::new(Box::new(file)))
        }
        None => Ok(BufReader::new(Box::new(std::io::stdin()))),
    }
}