mirror of
https://github.com/denoland/deno.git
synced 2024-12-27 09:39:08 -05:00
452 lines
13 KiB
Rust
452 lines
13 KiB
Rust
use std::borrow::Cow;
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use std::path::Path;
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use std::path::PathBuf;
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use deno_ast::ModuleSpecifier;
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use deno_core::error::uri_error;
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use deno_core::error::AnyError;
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/// Checks if the path has extension Deno supports.
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pub fn is_supported_ext(path: &Path) -> bool {
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if let Some(ext) = get_extension(path) {
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matches!(
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ext.as_str(),
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"ts" | "tsx" | "js" | "jsx" | "mjs" | "mts" | "cjs" | "cts"
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)
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} else {
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false
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}
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}
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/// Get the extension of a file in lowercase.
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pub fn get_extension(file_path: &Path) -> Option<String> {
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return file_path
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.extension()
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.and_then(|e| e.to_str())
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.map(|e| e.to_lowercase());
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}
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/// Attempts to convert a specifier to a file path. By default, uses the Url
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/// crate's `to_file_path()` method, but falls back to try and resolve unix-style
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/// paths on Windows.
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pub fn specifier_to_file_path(
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specifier: &ModuleSpecifier,
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) -> Result<PathBuf, AnyError> {
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let result = if cfg!(windows) {
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match specifier.to_file_path() {
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Ok(path) => Ok(path),
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Err(()) => {
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// This might be a unix-style path which is used in the tests even on Windows.
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// Attempt to see if we can convert it to a `PathBuf`. This code should be removed
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// once/if https://github.com/servo/rust-url/issues/730 is implemented.
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if specifier.scheme() == "file"
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&& specifier.host().is_none()
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&& specifier.port().is_none()
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&& specifier.path_segments().is_some()
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{
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let path_str = specifier.path();
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match String::from_utf8(
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percent_encoding::percent_decode(path_str.as_bytes()).collect(),
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) {
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Ok(path_str) => Ok(PathBuf::from(path_str)),
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Err(_) => Err(()),
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}
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} else {
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Err(())
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}
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}
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}
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} else {
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specifier.to_file_path()
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};
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match result {
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Ok(path) => Ok(path),
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Err(()) => Err(uri_error(format!(
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"Invalid file path.\n Specifier: {}",
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specifier
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))),
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}
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}
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/// Ensures a specifier that will definitely be a directory has a trailing slash.
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pub fn ensure_directory_specifier(
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mut specifier: ModuleSpecifier,
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) -> ModuleSpecifier {
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let path = specifier.path();
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if !path.ends_with('/') {
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let new_path = format!("{}/", path);
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specifier.set_path(&new_path);
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}
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specifier
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}
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/// Gets the parent of this module specifier.
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pub fn specifier_parent(specifier: &ModuleSpecifier) -> ModuleSpecifier {
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let mut specifier = specifier.clone();
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// don't use specifier.segments() because it will strip the leading slash
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let mut segments = specifier.path().split('/').collect::<Vec<_>>();
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if segments.iter().all(|s| s.is_empty()) {
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return specifier;
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}
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if let Some(last) = segments.last() {
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if last.is_empty() {
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segments.pop();
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}
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segments.pop();
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let new_path = format!("{}/", segments.join("/"));
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specifier.set_path(&new_path);
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}
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specifier
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}
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/// `from.make_relative(to)` but with fixes.
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pub fn relative_specifier(
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from: &ModuleSpecifier,
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to: &ModuleSpecifier,
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) -> Option<String> {
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let is_dir = to.path().ends_with('/');
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if is_dir && from == to {
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return Some("./".to_string());
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}
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// workaround using parent directory until https://github.com/servo/rust-url/pull/754 is merged
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let from = if !from.path().ends_with('/') {
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if let Some(end_slash) = from.path().rfind('/') {
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let mut new_from = from.clone();
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new_from.set_path(&from.path()[..end_slash + 1]);
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Cow::Owned(new_from)
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} else {
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Cow::Borrowed(from)
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}
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} else {
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Cow::Borrowed(from)
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};
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// workaround for url crate not adding a trailing slash for a directory
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// it seems to be fixed once a version greater than 2.2.2 is released
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let mut text = from.make_relative(to)?;
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if is_dir && !text.ends_with('/') && to.query().is_none() {
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text.push('/');
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}
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Some(if text.starts_with("../") || text.starts_with("./") {
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text
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} else {
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format!("./{}", text)
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})
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}
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/// This function checks if input path has trailing slash or not. If input path
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/// has trailing slash it will return true else it will return false.
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pub fn path_has_trailing_slash(path: &Path) -> bool {
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if let Some(path_str) = path.to_str() {
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if cfg!(windows) {
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path_str.ends_with('\\')
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} else {
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path_str.ends_with('/')
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}
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} else {
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false
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}
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}
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/// Gets a path with the specified file stem suffix.
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///
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/// Ex. `file.ts` with suffix `_2` returns `file_2.ts`
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pub fn path_with_stem_suffix(path: &Path, suffix: &str) -> PathBuf {
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if let Some(file_name) = path.file_name().map(|f| f.to_string_lossy()) {
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if let Some(file_stem) = path.file_stem().map(|f| f.to_string_lossy()) {
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if let Some(ext) = path.extension().map(|f| f.to_string_lossy()) {
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return if file_stem.to_lowercase().ends_with(".d") {
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path.with_file_name(format!(
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"{}{}.{}.{}",
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&file_stem[..file_stem.len() - ".d".len()],
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suffix,
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// maintain casing
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&file_stem[file_stem.len() - "d".len()..],
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ext
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))
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} else {
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path.with_file_name(format!("{}{}.{}", file_stem, suffix, ext))
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};
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}
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}
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path.with_file_name(format!("{}{}", file_name, suffix))
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} else {
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path.with_file_name(suffix)
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}
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}
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/// Gets if the provided character is not supported on all
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/// kinds of file systems.
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pub fn is_banned_path_char(c: char) -> bool {
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matches!(c, '<' | '>' | ':' | '"' | '|' | '?' | '*')
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}
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/// Gets a safe local directory name for the provided url.
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///
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/// For example:
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/// https://deno.land:8080/path -> deno.land_8080/path
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pub fn root_url_to_safe_local_dirname(root: &ModuleSpecifier) -> PathBuf {
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fn sanitize_segment(text: &str) -> String {
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text
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.chars()
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.map(|c| if is_banned_segment_char(c) { '_' } else { c })
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.collect()
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}
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fn is_banned_segment_char(c: char) -> bool {
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matches!(c, '/' | '\\') || is_banned_path_char(c)
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}
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let mut result = String::new();
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if let Some(domain) = root.domain() {
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result.push_str(&sanitize_segment(domain));
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}
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if let Some(port) = root.port() {
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if !result.is_empty() {
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result.push('_');
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}
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result.push_str(&port.to_string());
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}
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let mut result = PathBuf::from(result);
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if let Some(segments) = root.path_segments() {
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for segment in segments.filter(|s| !s.is_empty()) {
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result = result.join(sanitize_segment(segment));
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}
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}
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result
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}
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#[cfg(test)]
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mod test {
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use super::*;
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#[test]
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fn test_is_supported_ext() {
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assert!(!is_supported_ext(Path::new("tests/subdir/redirects")));
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assert!(!is_supported_ext(Path::new("README.md")));
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assert!(is_supported_ext(Path::new("lib/typescript.d.ts")));
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assert!(is_supported_ext(Path::new("testdata/run/001_hello.js")));
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assert!(is_supported_ext(Path::new("testdata/run/002_hello.ts")));
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assert!(is_supported_ext(Path::new("foo.jsx")));
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assert!(is_supported_ext(Path::new("foo.tsx")));
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assert!(is_supported_ext(Path::new("foo.TS")));
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assert!(is_supported_ext(Path::new("foo.TSX")));
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assert!(is_supported_ext(Path::new("foo.JS")));
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assert!(is_supported_ext(Path::new("foo.JSX")));
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assert!(is_supported_ext(Path::new("foo.mjs")));
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assert!(is_supported_ext(Path::new("foo.mts")));
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assert!(is_supported_ext(Path::new("foo.cjs")));
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assert!(is_supported_ext(Path::new("foo.cts")));
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assert!(!is_supported_ext(Path::new("foo.mjsx")));
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}
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#[test]
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fn test_specifier_to_file_path() {
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run_success_test("file:///", "/");
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run_success_test("file:///test", "/test");
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run_success_test("file:///dir/test/test.txt", "/dir/test/test.txt");
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run_success_test(
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"file:///dir/test%20test/test.txt",
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"/dir/test test/test.txt",
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);
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fn run_success_test(specifier: &str, expected_path: &str) {
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let result =
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specifier_to_file_path(&ModuleSpecifier::parse(specifier).unwrap())
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.unwrap();
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assert_eq!(result, PathBuf::from(expected_path));
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}
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}
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#[test]
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fn test_ensure_directory_specifier() {
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run_test("file:///", "file:///");
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run_test("file:///test", "file:///test/");
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run_test("file:///test/", "file:///test/");
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run_test("file:///test/other", "file:///test/other/");
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run_test("file:///test/other/", "file:///test/other/");
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fn run_test(specifier: &str, expected: &str) {
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let result =
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ensure_directory_specifier(ModuleSpecifier::parse(specifier).unwrap());
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assert_eq!(result.to_string(), expected);
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}
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}
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#[test]
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fn test_specifier_parent() {
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run_test("file:///", "file:///");
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run_test("file:///test", "file:///");
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run_test("file:///test/", "file:///");
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run_test("file:///test/other", "file:///test/");
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run_test("file:///test/other.txt", "file:///test/");
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run_test("file:///test/other/", "file:///test/");
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fn run_test(specifier: &str, expected: &str) {
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let result =
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specifier_parent(&ModuleSpecifier::parse(specifier).unwrap());
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assert_eq!(result.to_string(), expected);
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}
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}
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#[test]
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fn test_relative_specifier() {
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let fixtures: Vec<(&str, &str, Option<&str>)> = vec![
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("file:///from", "file:///to", Some("./to")),
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("file:///from", "file:///from/other", Some("./from/other")),
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("file:///from", "file:///from/other/", Some("./from/other/")),
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("file:///from", "file:///other/from", Some("./other/from")),
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("file:///from/", "file:///other/from", Some("../other/from")),
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("file:///from", "file:///other/from/", Some("./other/from/")),
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(
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"file:///from",
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"file:///to/other.txt",
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Some("./to/other.txt"),
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),
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(
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"file:///from/test",
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"file:///to/other.txt",
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Some("../to/other.txt"),
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),
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(
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"file:///from/other.txt",
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"file:///to/other.txt",
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Some("../to/other.txt"),
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),
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(
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"https://deno.land/x/a/b/d.ts",
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"https://deno.land/x/a/b/c.ts",
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Some("./c.ts"),
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),
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(
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"https://deno.land/x/a/b/d.ts",
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"https://deno.land/x/a/c.ts",
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Some("../c.ts"),
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),
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(
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"https://deno.land/x/a/b/d.ts",
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"https://deno.land/x/a/b/c/d.ts",
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Some("./c/d.ts"),
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),
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(
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"https://deno.land/x/a/b/c/",
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"https://deno.land/x/a/b/c/d.ts",
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Some("./d.ts"),
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),
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(
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"https://deno.land/x/a/b/c/",
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"https://deno.land/x/a/b/c/d/e.ts",
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Some("./d/e.ts"),
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),
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(
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"https://deno.land/x/a/b/c/f.ts",
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"https://deno.land/x/a/b/c/d/e.ts",
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Some("./d/e.ts"),
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),
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(
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"https://deno.land/x/a/b/d.ts",
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"https://deno.land/x/a/c.ts?foo=bar",
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Some("../c.ts?foo=bar"),
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),
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(
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"https://deno.land/x/a/b/d.ts?foo=bar",
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"https://deno.land/x/a/b/c.ts",
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Some("./c.ts"),
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),
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("file:///a/b/d.ts", "file:///a/b/c.ts", Some("./c.ts")),
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("https://deno.land/x/a/b/c.ts", "file:///a/b/c.ts", None),
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(
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"https://deno.land/",
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"https://deno.land/x/a/b/c.ts",
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Some("./x/a/b/c.ts"),
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),
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(
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"https://deno.land/x/d/e/f.ts",
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"https://deno.land/x/a/b/c.ts",
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Some("../../a/b/c.ts"),
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),
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];
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for (from_str, to_str, expected) in fixtures {
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let from = ModuleSpecifier::parse(from_str).unwrap();
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let to = ModuleSpecifier::parse(to_str).unwrap();
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let actual = relative_specifier(&from, &to);
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assert_eq!(
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actual.as_deref(),
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expected,
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"from: \"{}\" to: \"{}\"",
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from_str,
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to_str
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);
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}
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}
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#[test]
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fn test_path_has_trailing_slash() {
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#[cfg(not(windows))]
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{
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run_test("/Users/johndoe/Desktop/deno-project/target/", true);
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run_test(r"/Users/johndoe/deno-project/target//", true);
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run_test("/Users/johndoe/Desktop/deno-project", false);
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run_test(r"/Users/johndoe/deno-project\", false);
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}
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#[cfg(windows)]
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{
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run_test(r"C:\test\deno-project\", true);
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run_test(r"C:\test\deno-project\\", true);
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run_test(r"C:\test\file.txt", false);
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run_test(r"C:\test\file.txt/", false);
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}
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fn run_test(path_str: &str, expected: bool) {
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let path = Path::new(path_str);
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let result = path_has_trailing_slash(path);
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assert_eq!(result, expected);
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}
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}
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#[test]
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fn test_path_with_stem_suffix() {
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assert_eq!(
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path_with_stem_suffix(&PathBuf::from("/"), "_2"),
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PathBuf::from("/_2")
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);
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assert_eq!(
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path_with_stem_suffix(&PathBuf::from("/test"), "_2"),
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PathBuf::from("/test_2")
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);
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assert_eq!(
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path_with_stem_suffix(&PathBuf::from("/test.txt"), "_2"),
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PathBuf::from("/test_2.txt")
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);
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assert_eq!(
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path_with_stem_suffix(&PathBuf::from("/test/subdir"), "_2"),
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PathBuf::from("/test/subdir_2")
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);
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assert_eq!(
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path_with_stem_suffix(&PathBuf::from("/test/subdir.other.txt"), "_2"),
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PathBuf::from("/test/subdir.other_2.txt")
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);
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assert_eq!(
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path_with_stem_suffix(&PathBuf::from("/test.d.ts"), "_2"),
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PathBuf::from("/test_2.d.ts")
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);
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assert_eq!(
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path_with_stem_suffix(&PathBuf::from("/test.D.TS"), "_2"),
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PathBuf::from("/test_2.D.TS")
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);
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assert_eq!(
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path_with_stem_suffix(&PathBuf::from("/test.d.mts"), "_2"),
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PathBuf::from("/test_2.d.mts")
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);
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assert_eq!(
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path_with_stem_suffix(&PathBuf::from("/test.d.cts"), "_2"),
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PathBuf::from("/test_2.d.cts")
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);
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}
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}
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