//! path module

 //!

 //! Helper functions for working with paths on filesystem

 use std::{

   io::Error,

   path::{Component, Path, PathBuf},

 };

 /// Given a path provided by the user, determines where generated files

 /// related to that path should go.

 // this may be for flate only- move there

 pub fn local_relative_path<P: AsRef<Path>>(path: P) -> Result<PathBuf, Error> {

   let mut rel_path = PathBuf::new();

   let path = path.as_ref();

   for component in path.components() {

     match component {

       Component::Prefix(_) | Component::RootDir | Component::CurDir => {}

       Component::ParentDir => drop(rel_path.pop()), // noop if empty

       Component::Normal(name) => rel_path.push(name),

     }

   }

   Ok(rel_path)

 }