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Mercurial > core / rust/lib/util/src/path.rs

changeset 698: 96958d3eb5b0
parent: 1227f932b628
author: Richard Westhaver <ellis@rwest.io>
date: Fri, 04 Oct 2024 22:04:59 -0400
permissions: -rw-r--r--
description: fixes 
     1 //! path module
     2 //!
     3 //! Helper functions for working with paths on filesystem
     4 use std::{
     5   io::Error,
     6   path::{Component, Path, PathBuf},
     7 };
     8 
     9 /// Given a path provided by the user, determines where generated files
    10 /// related to that path should go.
    11 // this may be for flate only- move there
    12 pub fn local_relative_path<P: AsRef<Path>>(path: P) -> Result<PathBuf, Error> {
    13   let mut rel_path = PathBuf::new();
    14   let path = path.as_ref();
    15   for component in path.components() {
    16     match component {
    17       Component::Prefix(_) | Component::RootDir | Component::CurDir => {}
    18       Component::ParentDir => drop(rel_path.pop()), // noop if empty
    19       Component::Normal(name) => rel_path.push(name),
    20     }
    21   }
    22 
    23   Ok(rel_path)
    24 }