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9be8f61f52
Closes https://github.com/denoland/deno/issues/2699 Closes https://github.com/denoland/deno/issues/2347 Uses unstable rustfmt features. Since dprint invokes `rustfmt` we do not need to switch the cargo toolchain to nightly. Do we care about formatting stability of our codebase across Rust versions? (I don't)
82 lines
2.1 KiB
Rust
82 lines
2.1 KiB
Rust
// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
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use deno_core::anyhow::Context;
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use deno_core::error::AnyError;
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pub use deno_core::normalize_path;
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use std::env::current_dir;
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use std::io::Error;
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use std::path::Path;
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use std::path::PathBuf;
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/// Similar to `std::fs::canonicalize()` but strips UNC prefixes on Windows.
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pub fn canonicalize_path(path: &Path) -> Result<PathBuf, Error> {
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let mut canonicalized_path = path.canonicalize()?;
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if cfg!(windows) {
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canonicalized_path = PathBuf::from(
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canonicalized_path
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.display()
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.to_string()
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.trim_start_matches("\\\\?\\"),
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);
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}
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Ok(canonicalized_path)
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}
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#[inline]
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pub fn resolve_from_cwd(path: &Path) -> Result<PathBuf, AnyError> {
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if path.is_absolute() {
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Ok(normalize_path(path))
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} else {
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let cwd =
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current_dir().context("Failed to get current working directory")?;
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Ok(normalize_path(cwd.join(path)))
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn resolve_from_cwd_child() {
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let cwd = current_dir().unwrap();
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assert_eq!(resolve_from_cwd(Path::new("a")).unwrap(), cwd.join("a"));
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}
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#[test]
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fn resolve_from_cwd_dot() {
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let cwd = current_dir().unwrap();
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assert_eq!(resolve_from_cwd(Path::new(".")).unwrap(), cwd);
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}
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#[test]
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fn resolve_from_cwd_parent() {
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let cwd = current_dir().unwrap();
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assert_eq!(resolve_from_cwd(Path::new("a/..")).unwrap(), cwd);
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}
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#[test]
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fn test_normalize_path() {
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assert_eq!(normalize_path(Path::new("a/../b")), PathBuf::from("b"));
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assert_eq!(normalize_path(Path::new("a/./b/")), PathBuf::from("a/b/"));
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assert_eq!(
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normalize_path(Path::new("a/./b/../c")),
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PathBuf::from("a/c")
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);
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if cfg!(windows) {
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assert_eq!(
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normalize_path(Path::new("C:\\a\\.\\b\\..\\c")),
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PathBuf::from("C:\\a\\c")
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);
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}
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}
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// TODO: Get a good expected value here for Windows.
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#[cfg(not(windows))]
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#[test]
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fn resolve_from_cwd_absolute() {
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let expected = Path::new("/a");
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assert_eq!(resolve_from_cwd(expected).unwrap(), expected);
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}
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}
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