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// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
use std::fs;
use std::path::Path;
use std::path::PathBuf;
use std::sync::Arc;
use anyhow::Context;
use lsp_types::Url;
enum TempDirInner {
TempDir(tempfile::TempDir),
Path(PathBuf),
Symlinked {
symlink: Arc<TempDirInner>,
target: Arc<TempDirInner>,
},
}
impl TempDirInner {
pub fn path(&self) -> &Path {
match self {
Self::Path(path) => path.as_path(),
Self::TempDir(dir) => dir.path(),
Self::Symlinked { symlink, .. } => symlink.path(),
}
}
pub fn target_path(&self) -> &Path {
match self {
TempDirInner::Symlinked { target, .. } => target.target_path(),
_ => self.path(),
}
}
}
impl Drop for TempDirInner {
fn drop(&mut self) {
if let Self::Path(path) = self {
_ = fs::remove_dir_all(path);
}
}
}
/// For creating temporary directories in tests.
///
/// This was done because `tempfiles::TempDir` was very slow on Windows.
///
/// Note: Do not use this in actual code as this does not protect against
/// "insecure temporary file" security vulnerabilities.
#[derive(Clone)]
pub struct TempDir(Arc<TempDirInner>);
impl Default for TempDir {
fn default() -> Self {
Self::new()
}
}
impl TempDir {
pub fn new() -> Self {
Self::new_inner(&std::env::temp_dir(), None)
}
pub fn new_in(path: &Path) -> Self {
Self::new_inner(path, None)
}
pub fn new_with_prefix(prefix: &str) -> Self {
Self::new_inner(&std::env::temp_dir(), Some(prefix))
}
pub fn new_with_path(path: &Path) -> Self {
Self(Arc::new(TempDirInner::Path(path.to_path_buf())))
}
pub fn new_symlinked(target: TempDir) -> Self {
let target_path = target.path();
let path = target_path.parent().unwrap().join(format!(
"{}_symlinked",
target_path.file_name().unwrap().to_str().unwrap()
));
target.symlink_dir(target.path(), &path);
TempDir(Arc::new(TempDirInner::Symlinked {
target: target.0,
symlink: Self::new_with_path(&path).0,
}))
}
/// Create a new temporary directory with the given prefix as part of its name, if specified.
fn new_inner(parent_dir: &Path, prefix: Option<&str>) -> Self {
let mut builder = tempfile::Builder::new();
builder.prefix(prefix.unwrap_or("deno-cli-test"));
let dir = builder
.tempdir_in(parent_dir)
.expect("Failed to create a temporary directory");
Self(Arc::new(TempDirInner::TempDir(dir)))
}
pub fn uri(&self) -> Url {
Url::from_directory_path(self.path()).unwrap()
}
pub fn path(&self) -> &Path {
self.0.path()
}
/// The resolved final target path if this is a symlink.
pub fn target_path(&self) -> &Path {
self.0.target_path()
}
pub fn create_dir_all(&self, path: impl AsRef<Path>) {
fs::create_dir_all(self.target_path().join(path)).unwrap();
}
pub fn remove_file(&self, path: impl AsRef<Path>) {
fs::remove_file(self.target_path().join(path)).unwrap();
}
pub fn remove_dir_all(&self, path: impl AsRef<Path>) {
fs::remove_dir_all(self.target_path().join(path)).unwrap();
}
pub fn read_to_string(&self, path: impl AsRef<Path>) -> String {
let file_path = self.target_path().join(path);
fs::read_to_string(&file_path)
.with_context(|| format!("Could not find file: {}", file_path.display()))
.unwrap()
}
pub fn rename(&self, from: impl AsRef<Path>, to: impl AsRef<Path>) {
fs::rename(self.target_path().join(from), self.path().join(to)).unwrap();
}
pub fn write(&self, path: impl AsRef<Path>, text: impl AsRef<str>) {
fs::write(self.target_path().join(path), text.as_ref()).unwrap();
}
pub fn symlink_dir(
&self,
oldpath: impl AsRef<Path>,
newpath: impl AsRef<Path>,
) {
#[cfg(unix)]
{
use std::os::unix::fs::symlink;
symlink(self.path().join(oldpath), self.path().join(newpath)).unwrap();
}
#[cfg(not(unix))]
{
use std::os::windows::fs::symlink_dir;
symlink_dir(self.path().join(oldpath), self.path().join(newpath))
.unwrap();
}
}
pub fn symlink_file(
&self,
oldpath: impl AsRef<Path>,
newpath: impl AsRef<Path>,
) {
#[cfg(unix)]
{
use std::os::unix::fs::symlink;
symlink(self.path().join(oldpath), self.path().join(newpath)).unwrap();
}
#[cfg(not(unix))]
{
use std::os::windows::fs::symlink_file;
symlink_file(self.path().join(oldpath), self.path().join(newpath))
.unwrap();
}
}
}
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