// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license. use std::path::Component; use std::path::Path; use std::path::PathBuf; /// Normalize all intermediate components of the path (ie. remove "./" and "../" components). /// Similar to `fs::canonicalize()` but doesn't resolve symlinks. /// /// Taken from Cargo /// https://github.com/rust-lang/cargo/blob/af307a38c20a753ec60f0ad18be5abed3db3c9ac/src/cargo/util/paths.rs#L60-L85 pub fn normalize_path(path: &Path) -> PathBuf { let mut components = path.components().peekable(); let mut ret = if let Some(c @ Component::Prefix(..)) = components.peek().cloned() { components.next(); PathBuf::from(c.as_os_str()) } else { PathBuf::new() }; for component in components { match component { Component::Prefix(..) => unreachable!(), Component::RootDir => { ret.push(component.as_os_str()); } Component::CurDir => {} Component::ParentDir => { ret.pop(); } Component::Normal(c) => { ret.push(c); } } } ret }