use std::path::Path; /// return true if `path` is absolute, which depends on the platform but is always true if it starts with a `slash`, hence looks like/// a linux path.pub fn is_absolute(path: impl AsRef<Path>) -> bool {    let path = path.as_ref();    path.is_absolute() || path.to_str().and_then(|s| s.chars().next()) == Some('/')}