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39 lines
1.1 KiB
Rust
39 lines
1.1 KiB
Rust
// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
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use std::path::Component;
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use std::path::Path;
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use std::path::PathBuf;
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/// Normalize all intermediate components of the path (ie. remove "./" and "../" components).
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/// Similar to `fs::canonicalize()` but doesn't resolve symlinks.
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///
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/// Taken from Cargo
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/// <https://github.com/rust-lang/cargo/blob/af307a38c20a753ec60f0ad18be5abed3db3c9ac/src/cargo/util/paths.rs#L60-L85>
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#[inline]
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pub fn normalize_path<P: AsRef<Path>>(path: P) -> PathBuf {
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let mut components = path.as_ref().components().peekable();
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let mut ret =
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if let Some(c @ Component::Prefix(..)) = components.peek().cloned() {
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components.next();
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PathBuf::from(c.as_os_str())
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} else {
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PathBuf::new()
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};
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for component in components {
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match component {
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Component::Prefix(..) => unreachable!(),
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Component::RootDir => {
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ret.push(component.as_os_str());
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}
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Component::CurDir => {}
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Component::ParentDir => {
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ret.pop();
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}
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Component::Normal(c) => {
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ret.push(c);
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}
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}
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}
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ret
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}
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