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denoland-deno/core/path.rs
Bartek Iwańczuk 797f0ef42e
fix(npm): canonicalize filename before returning (#18948)
This commit changes how paths for npm packages are handled,
by canonicalizing them when resolving. This is done so that instead
of returning
"node_modules/<package_name>@<version>/node_modules/<dep>/index.js"
(which is a symlink) we "node_modules/<dep>@<dep_version>/index.js.

Fixes https://github.com/denoland/deno/issues/18924
Fixes https://github.com/bluwy/create-vite-extra/issues/31

---------

Co-authored-by: David Sherret <dsherret@gmail.com>
2023-05-04 16:18:57 +02:00

91 lines
2.5 KiB
Rust

// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
use std::path::PathBuf;
#[cfg(not(windows))]
#[inline]
pub fn strip_unc_prefix(path: PathBuf) -> PathBuf {
path
}
/// Strips the unc prefix (ex. \\?\) from Windows paths.
#[cfg(windows)]
pub fn strip_unc_prefix(path: PathBuf) -> PathBuf {
use std::path::Component;
use std::path::Prefix;
let mut components = path.components();
match components.next() {
Some(Component::Prefix(prefix)) => {
match prefix.kind() {
// \\?\device
Prefix::Verbatim(device) => {
let mut path = PathBuf::new();
path.push(format!(r"\\{}\", device.to_string_lossy()));
path.extend(components.filter(|c| !matches!(c, Component::RootDir)));
path
}
// \\?\c:\path
Prefix::VerbatimDisk(_) => {
let mut path = PathBuf::new();
path.push(prefix.as_os_str().to_string_lossy().replace(r"\\?\", ""));
path.extend(components);
path
}
// \\?\UNC\hostname\share_name\path
Prefix::VerbatimUNC(hostname, share_name) => {
let mut path = PathBuf::new();
path.push(format!(
r"\\{}\{}\",
hostname.to_string_lossy(),
share_name.to_string_lossy()
));
path.extend(components.filter(|c| !matches!(c, Component::RootDir)));
path
}
_ => path,
}
}
_ => path,
}
}
#[cfg(test)]
mod test {
#[cfg(windows)]
#[test]
fn test_strip_unc_prefix() {
use std::path::PathBuf;
run_test(r"C:\", r"C:\");
run_test(r"C:\test\file.txt", r"C:\test\file.txt");
run_test(r"\\?\C:\", r"C:\");
run_test(r"\\?\C:\test\file.txt", r"C:\test\file.txt");
run_test(r"\\.\C:\", r"\\.\C:\");
run_test(r"\\.\C:\Test\file.txt", r"\\.\C:\Test\file.txt");
run_test(r"\\?\UNC\localhost\", r"\\localhost");
run_test(r"\\?\UNC\localhost\c$\", r"\\localhost\c$");
run_test(
r"\\?\UNC\localhost\c$\Windows\file.txt",
r"\\localhost\c$\Windows\file.txt",
);
run_test(r"\\?\UNC\wsl$\deno.json", r"\\wsl$\deno.json");
run_test(r"\\?\server1", r"\\server1");
run_test(r"\\?\server1\e$\", r"\\server1\e$\");
run_test(
r"\\?\server1\e$\test\file.txt",
r"\\server1\e$\test\file.txt",
);
fn run_test(input: &str, expected: &str) {
assert_eq!(
super::strip_unc_prefix(PathBuf::from(input)),
PathBuf::from(expected)
);
}
}
}