mirror of
https://github.com/denoland/deno
synced 2024-08-25 02:57:22 +00:00
![Divy Srivastava](/assets/img/avatar_default.png)
Fixes https://github.com/denoland/deno/issues/20609 Vitepress support! `vitepress dev` and `vitepress build` via BYONM
848 lines
23 KiB
Rust
848 lines
23 KiB
Rust
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
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#![allow(clippy::disallowed_methods)]
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use std::fs;
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use std::io;
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use std::io::Write;
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use std::path::Path;
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use std::path::PathBuf;
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use std::rc::Rc;
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use deno_core::unsync::spawn_blocking;
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use deno_io::fs::File;
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use deno_io::fs::FsResult;
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use deno_io::fs::FsStat;
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use deno_io::StdFileResourceInner;
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use crate::interface::FsDirEntry;
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use crate::interface::FsFileType;
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use crate::FileSystem;
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use crate::OpenOptions;
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#[cfg(not(unix))]
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use deno_io::fs::FsError;
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#[derive(Debug, Clone)]
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pub struct RealFs;
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#[async_trait::async_trait(?Send)]
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impl FileSystem for RealFs {
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fn cwd(&self) -> FsResult<PathBuf> {
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std::env::current_dir().map_err(Into::into)
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}
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fn tmp_dir(&self) -> FsResult<PathBuf> {
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Ok(std::env::temp_dir())
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}
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fn chdir(&self, path: &Path) -> FsResult<()> {
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std::env::set_current_dir(path).map_err(Into::into)
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}
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#[cfg(not(unix))]
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fn umask(&self, _mask: Option<u32>) -> FsResult<u32> {
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// TODO implement umask for Windows
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// see https://github.com/nodejs/node/blob/master/src/node_process_methods.cc
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// and https://docs.microsoft.com/fr-fr/cpp/c-runtime-library/reference/umask?view=vs-2019
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Err(FsError::NotSupported)
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}
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#[cfg(unix)]
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fn umask(&self, mask: Option<u32>) -> FsResult<u32> {
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use nix::sys::stat::mode_t;
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use nix::sys::stat::umask;
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use nix::sys::stat::Mode;
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let r = if let Some(mask) = mask {
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// If mask provided, return previous.
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umask(Mode::from_bits_truncate(mask as mode_t))
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} else {
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// If no mask provided, we query the current. Requires two syscalls.
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let prev = umask(Mode::from_bits_truncate(0o777));
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let _ = umask(prev);
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prev
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};
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#[cfg(any(target_os = "android", target_os = "linux"))]
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{
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Ok(r.bits())
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}
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#[cfg(any(
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target_os = "macos",
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target_os = "openbsd",
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target_os = "freebsd"
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))]
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{
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Ok(r.bits() as u32)
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}
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}
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fn open_sync(
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&self,
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path: &Path,
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options: OpenOptions,
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) -> FsResult<Rc<dyn File>> {
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let opts = open_options(options);
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let std_file = opts.open(path)?;
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Ok(Rc::new(StdFileResourceInner::file(std_file)))
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}
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async fn open_async(
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&self,
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path: PathBuf,
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options: OpenOptions,
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) -> FsResult<Rc<dyn File>> {
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let opts = open_options(options);
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let std_file = spawn_blocking(move || opts.open(path)).await??;
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Ok(Rc::new(StdFileResourceInner::file(std_file)))
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}
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fn mkdir_sync(
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&self,
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path: &Path,
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recursive: bool,
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mode: u32,
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) -> FsResult<()> {
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mkdir(path, recursive, mode)
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}
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async fn mkdir_async(
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&self,
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path: PathBuf,
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recursive: bool,
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mode: u32,
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) -> FsResult<()> {
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spawn_blocking(move || mkdir(&path, recursive, mode)).await?
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}
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fn chmod_sync(&self, path: &Path, mode: u32) -> FsResult<()> {
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chmod(path, mode)
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}
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async fn chmod_async(&self, path: PathBuf, mode: u32) -> FsResult<()> {
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spawn_blocking(move || chmod(&path, mode)).await?
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}
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fn chown_sync(
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&self,
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path: &Path,
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uid: Option<u32>,
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gid: Option<u32>,
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) -> FsResult<()> {
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chown(path, uid, gid)
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}
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async fn chown_async(
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&self,
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path: PathBuf,
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uid: Option<u32>,
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gid: Option<u32>,
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) -> FsResult<()> {
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spawn_blocking(move || chown(&path, uid, gid)).await?
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}
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fn remove_sync(&self, path: &Path, recursive: bool) -> FsResult<()> {
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remove(path, recursive)
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}
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async fn remove_async(&self, path: PathBuf, recursive: bool) -> FsResult<()> {
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spawn_blocking(move || remove(&path, recursive)).await?
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}
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fn copy_file_sync(&self, from: &Path, to: &Path) -> FsResult<()> {
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copy_file(from, to)
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}
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async fn copy_file_async(&self, from: PathBuf, to: PathBuf) -> FsResult<()> {
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spawn_blocking(move || copy_file(&from, &to)).await?
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}
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fn cp_sync(&self, fro: &Path, to: &Path) -> FsResult<()> {
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cp(fro, to)
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}
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async fn cp_async(&self, fro: PathBuf, to: PathBuf) -> FsResult<()> {
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spawn_blocking(move || cp(&fro, &to)).await?
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}
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fn stat_sync(&self, path: &Path) -> FsResult<FsStat> {
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stat(path).map(Into::into)
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}
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async fn stat_async(&self, path: PathBuf) -> FsResult<FsStat> {
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spawn_blocking(move || stat(&path)).await?.map(Into::into)
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}
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fn lstat_sync(&self, path: &Path) -> FsResult<FsStat> {
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lstat(path).map(Into::into)
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}
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async fn lstat_async(&self, path: PathBuf) -> FsResult<FsStat> {
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spawn_blocking(move || lstat(&path)).await?.map(Into::into)
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}
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fn realpath_sync(&self, path: &Path) -> FsResult<PathBuf> {
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realpath(path)
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}
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async fn realpath_async(&self, path: PathBuf) -> FsResult<PathBuf> {
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spawn_blocking(move || realpath(&path)).await?
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}
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fn read_dir_sync(&self, path: &Path) -> FsResult<Vec<FsDirEntry>> {
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read_dir(path)
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}
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async fn read_dir_async(&self, path: PathBuf) -> FsResult<Vec<FsDirEntry>> {
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spawn_blocking(move || read_dir(&path)).await?
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}
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fn rename_sync(&self, oldpath: &Path, newpath: &Path) -> FsResult<()> {
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fs::rename(oldpath, newpath).map_err(Into::into)
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}
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async fn rename_async(
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&self,
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oldpath: PathBuf,
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newpath: PathBuf,
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) -> FsResult<()> {
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spawn_blocking(move || fs::rename(oldpath, newpath))
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.await?
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.map_err(Into::into)
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}
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fn link_sync(&self, oldpath: &Path, newpath: &Path) -> FsResult<()> {
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fs::hard_link(oldpath, newpath).map_err(Into::into)
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}
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async fn link_async(
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&self,
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oldpath: PathBuf,
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newpath: PathBuf,
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) -> FsResult<()> {
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spawn_blocking(move || fs::hard_link(oldpath, newpath))
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.await?
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.map_err(Into::into)
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}
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fn symlink_sync(
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&self,
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oldpath: &Path,
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newpath: &Path,
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file_type: Option<FsFileType>,
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) -> FsResult<()> {
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symlink(oldpath, newpath, file_type)
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}
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async fn symlink_async(
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&self,
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oldpath: PathBuf,
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newpath: PathBuf,
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file_type: Option<FsFileType>,
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) -> FsResult<()> {
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spawn_blocking(move || symlink(&oldpath, &newpath, file_type)).await?
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}
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fn read_link_sync(&self, path: &Path) -> FsResult<PathBuf> {
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fs::read_link(path).map_err(Into::into)
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}
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async fn read_link_async(&self, path: PathBuf) -> FsResult<PathBuf> {
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spawn_blocking(move || fs::read_link(path))
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.await?
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.map_err(Into::into)
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}
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fn truncate_sync(&self, path: &Path, len: u64) -> FsResult<()> {
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truncate(path, len)
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}
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async fn truncate_async(&self, path: PathBuf, len: u64) -> FsResult<()> {
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spawn_blocking(move || truncate(&path, len)).await?
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}
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fn utime_sync(
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&self,
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path: &Path,
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atime_secs: i64,
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atime_nanos: u32,
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mtime_secs: i64,
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mtime_nanos: u32,
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) -> FsResult<()> {
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let atime = filetime::FileTime::from_unix_time(atime_secs, atime_nanos);
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let mtime = filetime::FileTime::from_unix_time(mtime_secs, mtime_nanos);
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filetime::set_file_times(path, atime, mtime).map_err(Into::into)
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}
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async fn utime_async(
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&self,
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path: PathBuf,
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atime_secs: i64,
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atime_nanos: u32,
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mtime_secs: i64,
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mtime_nanos: u32,
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) -> FsResult<()> {
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let atime = filetime::FileTime::from_unix_time(atime_secs, atime_nanos);
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let mtime = filetime::FileTime::from_unix_time(mtime_secs, mtime_nanos);
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spawn_blocking(move || {
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filetime::set_file_times(path, atime, mtime).map_err(Into::into)
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})
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.await?
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}
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fn write_file_sync(
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&self,
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path: &Path,
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options: OpenOptions,
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data: &[u8],
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) -> FsResult<()> {
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let opts = open_options(options);
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let mut file = opts.open(path)?;
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#[cfg(unix)]
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if let Some(mode) = options.mode {
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use std::os::unix::fs::PermissionsExt;
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file.set_permissions(fs::Permissions::from_mode(mode))?;
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}
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file.write_all(data)?;
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Ok(())
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}
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async fn write_file_async(
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&self,
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path: PathBuf,
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options: OpenOptions,
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data: Vec<u8>,
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) -> FsResult<()> {
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spawn_blocking(move || {
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let opts = open_options(options);
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let mut file = opts.open(path)?;
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#[cfg(unix)]
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if let Some(mode) = options.mode {
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use std::os::unix::fs::PermissionsExt;
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file.set_permissions(fs::Permissions::from_mode(mode))?;
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}
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file.write_all(&data)?;
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Ok(())
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})
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.await?
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}
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fn read_file_sync(&self, path: &Path) -> FsResult<Vec<u8>> {
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fs::read(path).map_err(Into::into)
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}
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async fn read_file_async(&self, path: PathBuf) -> FsResult<Vec<u8>> {
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spawn_blocking(move || fs::read(path))
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.await?
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.map_err(Into::into)
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}
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}
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fn mkdir(path: &Path, recursive: bool, mode: u32) -> FsResult<()> {
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let mut builder = fs::DirBuilder::new();
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builder.recursive(recursive);
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#[cfg(unix)]
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{
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use std::os::unix::fs::DirBuilderExt;
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builder.mode(mode);
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}
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#[cfg(not(unix))]
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{
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_ = mode;
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}
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builder.create(path).map_err(Into::into)
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}
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#[cfg(unix)]
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fn chmod(path: &Path, mode: u32) -> FsResult<()> {
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use std::os::unix::fs::PermissionsExt;
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let permissions = fs::Permissions::from_mode(mode);
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fs::set_permissions(path, permissions)?;
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Ok(())
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}
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// TODO: implement chmod for Windows (#4357)
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#[cfg(not(unix))]
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fn chmod(path: &Path, _mode: u32) -> FsResult<()> {
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// Still check file/dir exists on Windows
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std::fs::metadata(path)?;
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Err(FsError::NotSupported)
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}
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#[cfg(unix)]
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fn chown(path: &Path, uid: Option<u32>, gid: Option<u32>) -> FsResult<()> {
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use nix::unistd::chown;
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use nix::unistd::Gid;
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use nix::unistd::Uid;
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let owner = uid.map(Uid::from_raw);
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let group = gid.map(Gid::from_raw);
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let res = chown(path, owner, group);
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if let Err(err) = res {
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return Err(io::Error::from_raw_os_error(err as i32).into());
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}
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Ok(())
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}
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// TODO: implement chown for Windows
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#[cfg(not(unix))]
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fn chown(_path: &Path, _uid: Option<u32>, _gid: Option<u32>) -> FsResult<()> {
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Err(FsError::NotSupported)
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}
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fn remove(path: &Path, recursive: bool) -> FsResult<()> {
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// TODO: this is racy. This should open fds, and then `unlink` those.
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let metadata = fs::symlink_metadata(path)?;
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let file_type = metadata.file_type();
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let res = if file_type.is_dir() {
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if recursive {
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fs::remove_dir_all(path)
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} else {
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fs::remove_dir(path)
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}
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} else if file_type.is_symlink() {
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#[cfg(unix)]
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{
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fs::remove_file(path)
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}
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#[cfg(not(unix))]
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{
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use std::os::windows::prelude::MetadataExt;
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use winapi::um::winnt::FILE_ATTRIBUTE_DIRECTORY;
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if metadata.file_attributes() & FILE_ATTRIBUTE_DIRECTORY != 0 {
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fs::remove_dir(path)
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} else {
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fs::remove_file(path)
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}
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}
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} else {
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fs::remove_file(path)
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};
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res.map_err(Into::into)
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}
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fn copy_file(from: &Path, to: &Path) -> FsResult<()> {
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#[cfg(target_os = "macos")]
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{
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use libc::clonefile;
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use libc::stat;
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use libc::unlink;
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use std::ffi::CString;
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use std::io::Read;
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use std::os::unix::fs::OpenOptionsExt;
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use std::os::unix::fs::PermissionsExt;
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let from_str = CString::new(from.as_os_str().as_encoded_bytes())
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.map_err(|err| io::Error::new(io::ErrorKind::InvalidInput, err))?;
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let to_str = CString::new(to.as_os_str().as_encoded_bytes())
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.map_err(|err| io::Error::new(io::ErrorKind::InvalidInput, err))?;
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// SAFETY: `from` and `to` are valid C strings.
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// std::fs::copy does open() + fcopyfile() on macOS. We try to use
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// clonefile() instead, which is more efficient.
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unsafe {
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let mut st = std::mem::zeroed();
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let ret = stat(from_str.as_ptr(), &mut st);
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if ret != 0 {
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return Err(io::Error::last_os_error().into());
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}
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|
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if st.st_size > 128 * 1024 {
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// Try unlink. If it fails, we are going to try clonefile() anyway.
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let _ = unlink(to_str.as_ptr());
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// Matches rust stdlib behavior for io::copy.
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// https://github.com/rust-lang/rust/blob/3fdd578d72a24d4efc2fe2ad18eec3b6ba72271e/library/std/src/sys/unix/fs.rs#L1613-L1616
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if clonefile(from_str.as_ptr(), to_str.as_ptr(), 0) == 0 {
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return Ok(());
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}
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} else {
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// Do a regular copy. fcopyfile() is an overkill for < 128KB
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// files.
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let mut buf = [0u8; 128 * 1024];
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let mut from_file = fs::File::open(from)?;
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let perm = from_file.metadata()?.permissions();
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let mut to_file = fs::OpenOptions::new()
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// create the file with the correct mode right away
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.mode(perm.mode())
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.write(true)
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.create(true)
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.truncate(true)
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.open(to)?;
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let writer_metadata = to_file.metadata()?;
|
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if writer_metadata.is_file() {
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// Set the correct file permissions, in case the file already existed.
|
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// Don't set the permissions on already existing non-files like
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// pipes/FIFOs or device nodes.
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to_file.set_permissions(perm)?;
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}
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loop {
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let nread = from_file.read(&mut buf)?;
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if nread == 0 {
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break;
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}
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to_file.write_all(&buf[..nread])?;
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}
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return Ok(());
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}
|
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}
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|
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// clonefile() failed, fall back to std::fs::copy().
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}
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|
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fs::copy(from, to)?;
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|
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Ok(())
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}
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|
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fn cp(from: &Path, to: &Path) -> FsResult<()> {
|
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fn cp_(source_meta: fs::Metadata, from: &Path, to: &Path) -> FsResult<()> {
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use rayon::prelude::IntoParallelIterator;
|
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use rayon::prelude::ParallelIterator;
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|
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let ty = source_meta.file_type();
|
|
if ty.is_dir() {
|
|
#[allow(unused_mut)]
|
|
let mut builder = fs::DirBuilder::new();
|
|
#[cfg(unix)]
|
|
{
|
|
use std::os::unix::fs::DirBuilderExt;
|
|
use std::os::unix::fs::PermissionsExt;
|
|
builder.mode(fs::symlink_metadata(from)?.permissions().mode());
|
|
}
|
|
builder.create(to)?;
|
|
|
|
let mut entries: Vec<_> = fs::read_dir(from)?
|
|
.map(|res| res.map(|e| e.file_name()))
|
|
.collect::<Result<_, _>>()?;
|
|
|
|
entries.shrink_to_fit();
|
|
entries
|
|
.into_par_iter()
|
|
.map(|file_name| {
|
|
cp_(
|
|
fs::symlink_metadata(from.join(&file_name)).unwrap(),
|
|
&from.join(&file_name),
|
|
&to.join(&file_name),
|
|
)
|
|
.map_err(|err| {
|
|
io::Error::new(
|
|
err.kind(),
|
|
format!(
|
|
"failed to copy '{}' to '{}': {:?}",
|
|
from.join(&file_name).display(),
|
|
to.join(&file_name).display(),
|
|
err
|
|
),
|
|
)
|
|
})
|
|
})
|
|
.collect::<Result<Vec<_>, _>>()?;
|
|
|
|
return Ok(());
|
|
} else if ty.is_symlink() {
|
|
let from = std::fs::read_link(from)?;
|
|
|
|
#[cfg(unix)]
|
|
std::os::unix::fs::symlink(from, to)?;
|
|
#[cfg(windows)]
|
|
std::os::windows::fs::symlink_file(from, to)?;
|
|
|
|
return Ok(());
|
|
}
|
|
#[cfg(unix)]
|
|
{
|
|
use std::os::unix::fs::FileTypeExt;
|
|
if ty.is_socket() {
|
|
return Err(
|
|
io::Error::new(
|
|
io::ErrorKind::InvalidInput,
|
|
"sockets cannot be copied",
|
|
)
|
|
.into(),
|
|
);
|
|
}
|
|
}
|
|
copy_file(from, to)
|
|
}
|
|
|
|
#[cfg(target_os = "macos")]
|
|
{
|
|
// Just clonefile()
|
|
use libc::clonefile;
|
|
use libc::unlink;
|
|
use std::ffi::CString;
|
|
use std::os::unix::ffi::OsStrExt;
|
|
|
|
let from_str = CString::new(from.as_os_str().as_bytes())
|
|
.map_err(|err| io::Error::new(io::ErrorKind::InvalidInput, err))?;
|
|
let to_str = CString::new(to.as_os_str().as_bytes())
|
|
.map_err(|err| io::Error::new(io::ErrorKind::InvalidInput, err))?;
|
|
|
|
// SAFETY: `from` and `to` are valid C strings.
|
|
unsafe {
|
|
// Try unlink. If it fails, we are going to try clonefile() anyway.
|
|
let _ = unlink(to_str.as_ptr());
|
|
|
|
if clonefile(from_str.as_ptr(), to_str.as_ptr(), 0) == 0 {
|
|
return Ok(());
|
|
}
|
|
}
|
|
}
|
|
|
|
let source_meta = fs::symlink_metadata(from)?;
|
|
|
|
#[inline]
|
|
fn is_identical(
|
|
source_meta: &fs::Metadata,
|
|
dest_meta: &fs::Metadata,
|
|
) -> bool {
|
|
#[cfg(unix)]
|
|
{
|
|
use std::os::unix::fs::MetadataExt;
|
|
source_meta.ino() == dest_meta.ino()
|
|
}
|
|
#[cfg(windows)]
|
|
{
|
|
use std::os::windows::fs::MetadataExt;
|
|
// https://learn.microsoft.com/en-us/windows/win32/api/fileapi/ns-fileapi-by_handle_file_information
|
|
//
|
|
// The identifier (low and high parts) and the volume serial number uniquely identify a file on a single computer.
|
|
// To determine whether two open handles represent the same file, combine the identifier and the volume serial
|
|
// number for each file and compare them.
|
|
//
|
|
// Use this code once file_index() and volume_serial_number() is stabalized
|
|
// See: https://github.com/rust-lang/rust/issues/63010
|
|
//
|
|
// source_meta.file_index() == dest_meta.file_index()
|
|
// && source_meta.volume_serial_number()
|
|
// == dest_meta.volume_serial_number()
|
|
source_meta.last_write_time() == dest_meta.last_write_time()
|
|
&& source_meta.creation_time() == dest_meta.creation_time()
|
|
}
|
|
}
|
|
|
|
match (fs::metadata(to), fs::symlink_metadata(to)) {
|
|
(Ok(m), _) if m.is_dir() => cp_(
|
|
source_meta,
|
|
from,
|
|
&to.join(from.file_name().ok_or_else(|| {
|
|
io::Error::new(
|
|
io::ErrorKind::InvalidInput,
|
|
"the source path is not a valid file",
|
|
)
|
|
})?),
|
|
)?,
|
|
(_, Ok(m)) if is_identical(&source_meta, &m) => {
|
|
return Err(
|
|
io::Error::new(
|
|
io::ErrorKind::InvalidInput,
|
|
"the source and destination are the same file",
|
|
)
|
|
.into(),
|
|
)
|
|
}
|
|
_ => cp_(source_meta, from, to)?,
|
|
}
|
|
|
|
Ok(())
|
|
}
|
|
|
|
#[cfg(not(windows))]
|
|
fn stat(path: &Path) -> FsResult<FsStat> {
|
|
let metadata = fs::metadata(path)?;
|
|
Ok(FsStat::from_std(metadata))
|
|
}
|
|
|
|
#[cfg(windows)]
|
|
fn stat(path: &Path) -> FsResult<FsStat> {
|
|
let metadata = fs::metadata(path)?;
|
|
let mut fsstat = FsStat::from_std(metadata);
|
|
use winapi::um::winbase::FILE_FLAG_BACKUP_SEMANTICS;
|
|
let path = path.canonicalize()?;
|
|
stat_extra(&mut fsstat, &path, FILE_FLAG_BACKUP_SEMANTICS)?;
|
|
Ok(fsstat)
|
|
}
|
|
|
|
#[cfg(not(windows))]
|
|
fn lstat(path: &Path) -> FsResult<FsStat> {
|
|
let metadata = fs::symlink_metadata(path)?;
|
|
Ok(FsStat::from_std(metadata))
|
|
}
|
|
|
|
#[cfg(windows)]
|
|
fn lstat(path: &Path) -> FsResult<FsStat> {
|
|
use winapi::um::winbase::FILE_FLAG_BACKUP_SEMANTICS;
|
|
use winapi::um::winbase::FILE_FLAG_OPEN_REPARSE_POINT;
|
|
|
|
let metadata = fs::symlink_metadata(path)?;
|
|
let mut fsstat = FsStat::from_std(metadata);
|
|
stat_extra(
|
|
&mut fsstat,
|
|
path,
|
|
FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_OPEN_REPARSE_POINT,
|
|
)?;
|
|
Ok(fsstat)
|
|
}
|
|
|
|
#[cfg(windows)]
|
|
fn stat_extra(
|
|
fsstat: &mut FsStat,
|
|
path: &Path,
|
|
file_flags: winapi::shared::minwindef::DWORD,
|
|
) -> FsResult<()> {
|
|
use std::os::windows::prelude::OsStrExt;
|
|
|
|
use winapi::um::fileapi::CreateFileW;
|
|
use winapi::um::fileapi::OPEN_EXISTING;
|
|
use winapi::um::handleapi::CloseHandle;
|
|
use winapi::um::handleapi::INVALID_HANDLE_VALUE;
|
|
use winapi::um::winnt::FILE_SHARE_DELETE;
|
|
use winapi::um::winnt::FILE_SHARE_READ;
|
|
use winapi::um::winnt::FILE_SHARE_WRITE;
|
|
|
|
unsafe fn get_dev(
|
|
handle: winapi::shared::ntdef::HANDLE,
|
|
) -> std::io::Result<u64> {
|
|
use winapi::shared::minwindef::FALSE;
|
|
use winapi::um::fileapi::GetFileInformationByHandle;
|
|
use winapi::um::fileapi::BY_HANDLE_FILE_INFORMATION;
|
|
|
|
let info = {
|
|
let mut info =
|
|
std::mem::MaybeUninit::<BY_HANDLE_FILE_INFORMATION>::zeroed();
|
|
if GetFileInformationByHandle(handle, info.as_mut_ptr()) == FALSE {
|
|
return Err(std::io::Error::last_os_error());
|
|
}
|
|
|
|
info.assume_init()
|
|
};
|
|
|
|
Ok(info.dwVolumeSerialNumber as u64)
|
|
}
|
|
|
|
// SAFETY: winapi calls
|
|
unsafe {
|
|
let mut path: Vec<_> = path.as_os_str().encode_wide().collect();
|
|
path.push(0);
|
|
let file_handle = CreateFileW(
|
|
path.as_ptr(),
|
|
0,
|
|
FILE_SHARE_READ | FILE_SHARE_DELETE | FILE_SHARE_WRITE,
|
|
std::ptr::null_mut(),
|
|
OPEN_EXISTING,
|
|
file_flags,
|
|
std::ptr::null_mut(),
|
|
);
|
|
if file_handle == INVALID_HANDLE_VALUE {
|
|
return Err(std::io::Error::last_os_error().into());
|
|
}
|
|
|
|
let result = get_dev(file_handle);
|
|
CloseHandle(file_handle);
|
|
fsstat.dev = result?;
|
|
|
|
Ok(())
|
|
}
|
|
}
|
|
|
|
fn realpath(path: &Path) -> FsResult<PathBuf> {
|
|
Ok(deno_core::strip_unc_prefix(path.canonicalize()?))
|
|
}
|
|
|
|
fn read_dir(path: &Path) -> FsResult<Vec<FsDirEntry>> {
|
|
let entries = fs::read_dir(path)?
|
|
.filter_map(|entry| {
|
|
let entry = entry.ok()?;
|
|
let name = entry.file_name().into_string().ok()?;
|
|
let metadata = entry.file_type();
|
|
macro_rules! method_or_false {
|
|
($method:ident) => {
|
|
if let Ok(metadata) = &metadata {
|
|
metadata.$method()
|
|
} else {
|
|
false
|
|
}
|
|
};
|
|
}
|
|
Some(FsDirEntry {
|
|
name,
|
|
is_file: method_or_false!(is_file),
|
|
is_directory: method_or_false!(is_dir),
|
|
is_symlink: method_or_false!(is_symlink),
|
|
})
|
|
})
|
|
.collect();
|
|
|
|
Ok(entries)
|
|
}
|
|
|
|
#[cfg(not(windows))]
|
|
fn symlink(
|
|
oldpath: &Path,
|
|
newpath: &Path,
|
|
_file_type: Option<FsFileType>,
|
|
) -> FsResult<()> {
|
|
std::os::unix::fs::symlink(oldpath, newpath)?;
|
|
Ok(())
|
|
}
|
|
|
|
#[cfg(windows)]
|
|
fn symlink(
|
|
oldpath: &Path,
|
|
newpath: &Path,
|
|
file_type: Option<FsFileType>,
|
|
) -> FsResult<()> {
|
|
let file_type = match file_type {
|
|
Some(file_type) => file_type,
|
|
None => {
|
|
let old_meta = fs::metadata(oldpath);
|
|
match old_meta {
|
|
Ok(metadata) => {
|
|
if metadata.is_file() {
|
|
FsFileType::File
|
|
} else if metadata.is_dir() {
|
|
FsFileType::Directory
|
|
} else {
|
|
return Err(FsError::Io(io::Error::new(
|
|
io::ErrorKind::InvalidInput,
|
|
"On Windows the target must be a file or directory",
|
|
)));
|
|
}
|
|
}
|
|
Err(err) if err.kind() == io::ErrorKind::NotFound => {
|
|
return Err(FsError::Io(io::Error::new(
|
|
io::ErrorKind::InvalidInput,
|
|
"On Windows an `options` argument is required if the target does not exist",
|
|
)))
|
|
}
|
|
Err(err) => return Err(err.into()),
|
|
}
|
|
}
|
|
};
|
|
|
|
match file_type {
|
|
FsFileType::File => {
|
|
std::os::windows::fs::symlink_file(oldpath, newpath)?;
|
|
}
|
|
FsFileType::Directory => {
|
|
std::os::windows::fs::symlink_dir(oldpath, newpath)?;
|
|
}
|
|
FsFileType::Junction => {
|
|
junction::create(oldpath, newpath)?;
|
|
}
|
|
};
|
|
|
|
Ok(())
|
|
}
|
|
|
|
fn truncate(path: &Path, len: u64) -> FsResult<()> {
|
|
let file = fs::OpenOptions::new().write(true).open(path)?;
|
|
file.set_len(len)?;
|
|
Ok(())
|
|
}
|
|
|
|
fn open_options(options: OpenOptions) -> fs::OpenOptions {
|
|
let mut open_options = fs::OpenOptions::new();
|
|
if let Some(mode) = options.mode {
|
|
// mode only used if creating the file on Unix
|
|
// if not specified, defaults to 0o666
|
|
#[cfg(unix)]
|
|
{
|
|
use std::os::unix::fs::OpenOptionsExt;
|
|
open_options.mode(mode & 0o777);
|
|
}
|
|
#[cfg(not(unix))]
|
|
let _ = mode; // avoid unused warning
|
|
}
|
|
open_options.read(options.read);
|
|
open_options.create(options.create);
|
|
open_options.write(options.write);
|
|
open_options.truncate(options.truncate);
|
|
open_options.append(options.append);
|
|
open_options.create_new(options.create_new);
|
|
open_options
|
|
}
|