/src/libstd/old_io/fs.rs
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- // Copyright 2013-2014 The Rust Project Developers. See the COPYRIGHT
- // file at the top-level directory of this distribution and at
- // http://rust-lang.org/COPYRIGHT.
- //
- // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
- // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
- // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
- // option. This file may not be copied, modified, or distributed
- // except according to those terms.
- //
- // ignore-lexer-test FIXME #15679
- //! Synchronous File I/O
- //!
- //! This module provides a set of functions and traits for working
- //! with regular files & directories on a filesystem.
- //!
- //! At the top-level of the module are a set of freestanding functions, associated
- //! with various filesystem operations. They all operate on `Path` objects.
- //!
- //! All operations in this module, including those as part of `File` et al block
- //! the task during execution. In the event of failure, all functions/methods
- //! will return an `IoResult` type with an `Err` value.
- //!
- //! Also included in this module is an implementation block on the `Path` object
- //! defined in `std::path::Path`. The impl adds useful methods about inspecting
- //! the metadata of a file. This includes getting the `stat` information,
- //! reading off particular bits of it, etc.
- //!
- //! # Examples
- //!
- //! ```rust
- //! # #![allow(unused_must_use)]
- //! use std::old_io::fs::PathExtensions;
- //! use std::old_io::{File, fs};
- //!
- //! let path = Path::new("foo.txt");
- //!
- //! // create the file, whether it exists or not
- //! let mut file = File::create(&path);
- //! file.write(b"foobar");
- //! # drop(file);
- //!
- //! // open the file in read-only mode
- //! let mut file = File::open(&path);
- //! file.read_to_end();
- //!
- //! println!("{}", path.stat().unwrap().size);
- //! # drop(file);
- //! fs::unlink(&path);
- //! ```
- use clone::Clone;
- use old_io::standard_error;
- use old_io::{FilePermission, Write, Open, FileAccess, FileMode, FileType};
- use old_io::{IoResult, IoError, InvalidInput};
- use old_io::{FileStat, SeekStyle, Seek, Writer, Reader};
- use old_io::{Read, Truncate, ReadWrite, Append};
- use old_io::UpdateIoError;
- use old_io;
- use iter::{Iterator, Extend};
- use option::Option;
- use option::Option::{Some, None};
- use old_path::{Path, GenericPath};
- use old_path;
- use result::Result::{Err, Ok};
- #[cfg(stage0)]
- use slice::SliceExt;
- use string::String;
- use vec::Vec;
- use sys::fs as fs_imp;
- use sys_common;
- /// Unconstrained file access type that exposes read and write operations
- ///
- /// Can be constructed via `File::open()`, `File::create()`, and
- /// `File::open_mode()`.
- ///
- /// # Error
- ///
- /// This type will return errors as an `IoResult<T>` if operations are
- /// attempted against it for which its underlying file descriptor was not
- /// configured at creation time, via the `FileAccess` parameter to
- /// `File::open_mode()`.
- #[deprecated(since = "1.0.0", reason = "replaced with std::fs::File")]
- #[unstable(feature = "old_io")]
- pub struct File {
- fd: fs_imp::FileDesc,
- path: Path,
- last_nread: int,
- }
- impl sys_common::AsInner<fs_imp::FileDesc> for File {
- fn as_inner(&self) -> &fs_imp::FileDesc {
- &self.fd
- }
- }
- #[deprecated(since = "1.0.0", reason = "replaced with std::fs")]
- #[unstable(feature = "old_io")]
- impl File {
- /// Open a file at `path` in the mode specified by the `mode` and `access`
- /// arguments
- ///
- /// # Examples
- ///
- /// ```rust,should_fail
- /// use std::old_io::{File, Open, ReadWrite};
- ///
- /// let p = Path::new("/some/file/path.txt");
- ///
- /// let file = match File::open_mode(&p, Open, ReadWrite) {
- /// Ok(f) => f,
- /// Err(e) => panic!("file error: {}", e),
- /// };
- /// // do some stuff with that file
- ///
- /// // the file will be closed at the end of this block
- /// ```
- ///
- /// `FileMode` and `FileAccess` provide information about the permissions
- /// context in which a given stream is created. More information about them
- /// can be found in `std::io`'s docs. If a file is opened with `Write`
- /// or `ReadWrite` access, then it will be created if it does not already
- /// exist.
- ///
- /// Note that, with this function, a `File` is returned regardless of the
- /// access-limitations indicated by `FileAccess` (e.g. calling `write` on a
- /// `File` opened as `Read` will return an error at runtime).
- ///
- /// # Error
- ///
- /// This function will return an error under a number of different
- /// circumstances, to include but not limited to:
- ///
- /// * Opening a file that does not exist with `Read` access.
- /// * Attempting to open a file with a `FileAccess` that the user lacks
- /// permissions for
- /// * Filesystem-level errors (full disk, etc)
- #[deprecated(since = "1.0.0", reason = "replaced with std::fs::OpenOptions")]
- #[unstable(feature = "old_io")]
- pub fn open_mode(path: &Path,
- mode: FileMode,
- access: FileAccess) -> IoResult<File> {
- fs_imp::open(path, mode, access).and_then(|fd| {
- // On *BSD systems, we can open a directory as a file and read from it:
- // fd=open("/tmp", O_RDONLY); read(fd, buf, N);
- // due to an old tradition before the introduction of opendir(3).
- // We explicitly reject it because there are few use cases.
- if cfg!(not(any(windows, target_os = "linux", target_os = "android"))) &&
- try!(fd.fstat()).kind == FileType::Directory {
- Err(IoError {
- kind: InvalidInput,
- desc: "is a directory",
- detail: None
- })
- } else {
- Ok(File {
- path: path.clone(),
- fd: fd,
- last_nread: -1
- })
- }
- }).update_err("couldn't open path as file", |e| {
- format!("{}; path={}; mode={}; access={}", e, path.display(),
- mode_string(mode), access_string(access))
- })
- }
- /// Attempts to open a file in read-only mode. This function is equivalent to
- /// `File::open_mode(path, Open, Read)`, and will raise all of the same
- /// errors that `File::open_mode` does.
- ///
- /// For more information, see the `File::open_mode` function.
- ///
- /// # Examples
- ///
- /// ```
- /// use std::old_io::File;
- ///
- /// let contents = File::open(&Path::new("foo.txt")).read_to_end();
- /// ```
- #[deprecated(since = "1.0.0", reason = "replaced with std::fs::File::open")]
- #[unstable(feature = "old_io")]
- pub fn open(path: &Path) -> IoResult<File> {
- File::open_mode(path, Open, Read)
- }
- /// Attempts to create a file in write-only mode. This function is
- /// equivalent to `File::open_mode(path, Truncate, Write)`, and will
- /// raise all of the same errors that `File::open_mode` does.
- ///
- /// For more information, see the `File::open_mode` function.
- ///
- /// # Examples
- ///
- /// ```
- /// # #![allow(unused_must_use)]
- /// use std::old_io::File;
- ///
- /// let mut f = File::create(&Path::new("foo.txt"));
- /// f.write(b"This is a sample file");
- /// # drop(f);
- /// # ::std::old_io::fs::unlink(&Path::new("foo.txt"));
- /// ```
- #[deprecated(since = "1.0.0", reason = "replaced with std::fs::File::create")]
- #[unstable(feature = "old_io")]
- pub fn create(path: &Path) -> IoResult<File> {
- File::open_mode(path, Truncate, Write)
- .update_desc("couldn't create file")
- }
- /// Returns the original path that was used to open this file.
- #[deprecated(since = "1.0.0", reason = "replaced with std::fs")]
- #[unstable(feature = "old_io")]
- pub fn path<'a>(&'a self) -> &'a Path {
- &self.path
- }
- /// Synchronizes all modifications to this file to its permanent storage
- /// device. This will flush any internal buffers necessary to perform this
- /// operation.
- #[deprecated(since = "1.0.0", reason = "replaced with std::fs")]
- #[unstable(feature = "old_io")]
- pub fn fsync(&mut self) -> IoResult<()> {
- self.fd.fsync()
- .update_err("couldn't fsync file",
- |e| format!("{}; path={}", e, self.path.display()))
- }
- /// This function is similar to `fsync`, except that it may not synchronize
- /// file metadata to the filesystem. This is intended for use cases that
- /// must synchronize content, but don't need the metadata on disk. The goal
- /// of this method is to reduce disk operations.
- #[deprecated(since = "1.0.0", reason = "replaced with std::fs")]
- #[unstable(feature = "old_io")]
- pub fn datasync(&mut self) -> IoResult<()> {
- self.fd.datasync()
- .update_err("couldn't datasync file",
- |e| format!("{}; path={}", e, self.path.display()))
- }
- /// Either truncates or extends the underlying file, updating the size of
- /// this file to become `size`. This is equivalent to unix's `truncate`
- /// function.
- ///
- /// If the `size` is less than the current file's size, then the file will
- /// be shrunk. If it is greater than the current file's size, then the file
- /// will be extended to `size` and have all of the intermediate data filled
- /// in with 0s.
- #[deprecated(since = "1.0.0", reason = "replaced with std::fs")]
- #[unstable(feature = "old_io")]
- pub fn truncate(&mut self, size: i64) -> IoResult<()> {
- self.fd.truncate(size)
- .update_err("couldn't truncate file", |e|
- format!("{}; path={}; size={}", e, self.path.display(), size))
- }
- /// Returns true if the stream has reached the end of the file.
- ///
- /// If true, then this file will no longer continue to return data via
- /// `read`.
- ///
- /// Note that the operating system will not return an `EOF` indicator
- /// until you have attempted to read past the end of the file, so if
- /// you've read _exactly_ the number of bytes in the file, this will
- /// return `false`, not `true`.
- #[deprecated(since = "1.0.0", reason = "replaced with std::fs")]
- #[unstable(feature = "old_io")]
- pub fn eof(&self) -> bool {
- self.last_nread == 0
- }
- /// Queries information about the underlying file.
- #[deprecated(since = "1.0.0", reason = "replaced with std::fs")]
- #[unstable(feature = "old_io")]
- pub fn stat(&self) -> IoResult<FileStat> {
- self.fd.fstat()
- .update_err("couldn't fstat file", |e|
- format!("{}; path={}", e, self.path.display()))
- }
- }
- /// Unlink a file from the underlying filesystem.
- ///
- /// # Examples
- ///
- /// ```
- /// # #![allow(unused_must_use)]
- /// use std::old_io::fs;
- ///
- /// let p = Path::new("/some/file/path.txt");
- /// fs::unlink(&p);
- /// ```
- ///
- /// Note that, just because an unlink call was successful, it is not
- /// guaranteed that a file is immediately deleted (e.g. depending on
- /// platform, other open file descriptors may prevent immediate removal)
- ///
- /// # Error
- ///
- /// This function will return an error if `path` points to a directory, if the
- /// user lacks permissions to remove the file, or if some other filesystem-level
- /// error occurs.
- #[deprecated(since = "1.0.0", reason = "replaced with std::fs::remove_file")]
- #[unstable(feature = "old_io")]
- pub fn unlink(path: &Path) -> IoResult<()> {
- fs_imp::unlink(path)
- .update_err("couldn't unlink path", |e|
- format!("{}; path={}", e, path.display()))
- }
- /// Given a path, query the file system to get information about a file,
- /// directory, etc. This function will traverse symlinks to query
- /// information about the destination file.
- ///
- /// # Examples
- ///
- /// ```
- /// use std::old_io::fs;
- ///
- /// let p = Path::new("/some/file/path.txt");
- /// match fs::stat(&p) {
- /// Ok(stat) => { /* ... */ }
- /// Err(e) => { /* handle error */ }
- /// }
- /// ```
- ///
- /// # Error
- ///
- /// This function will return an error if the user lacks the requisite permissions
- /// to perform a `stat` call on the given `path` or if there is no entry in the
- /// filesystem at the provided path.
- #[deprecated(since = "1.0.0", reason = "replaced with std::fs::metadata")]
- #[unstable(feature = "old_io")]
- pub fn stat(path: &Path) -> IoResult<FileStat> {
- fs_imp::stat(path)
- .update_err("couldn't stat path", |e|
- format!("{}; path={}", e, path.display()))
- }
- /// Perform the same operation as the `stat` function, except that this
- /// function does not traverse through symlinks. This will return
- /// information about the symlink file instead of the file that it points
- /// to.
- ///
- /// # Error
- ///
- /// See `stat`
- #[unstable(feature = "old_fs")]
- pub fn lstat(path: &Path) -> IoResult<FileStat> {
- fs_imp::lstat(path)
- .update_err("couldn't lstat path", |e|
- format!("{}; path={}", e, path.display()))
- }
- /// Rename a file or directory to a new name.
- ///
- /// # Examples
- ///
- /// ```
- /// # #![allow(unused_must_use)]
- /// use std::old_io::fs;
- ///
- /// fs::rename(&Path::new("foo"), &Path::new("bar"));
- /// ```
- ///
- /// # Error
- ///
- /// This function will return an error if the provided `from` doesn't exist, if
- /// the process lacks permissions to view the contents, or if some other
- /// intermittent I/O error occurs.
- #[deprecated(since = "1.0.0", reason = "replaced with std::fs::rename")]
- #[unstable(feature = "old_io")]
- pub fn rename(from: &Path, to: &Path) -> IoResult<()> {
- fs_imp::rename(from, to)
- .update_err("couldn't rename path", |e|
- format!("{}; from={:?}; to={:?}", e, from.display(), to.display()))
- }
- /// Copies the contents of one file to another. This function will also
- /// copy the permission bits of the original file to the destination file.
- ///
- /// Note that if `from` and `to` both point to the same file, then the file
- /// will likely get truncated by this operation.
- ///
- /// # Examples
- ///
- /// ```
- /// # #![allow(unused_must_use)]
- /// use std::old_io::fs;
- ///
- /// fs::copy(&Path::new("foo.txt"), &Path::new("bar.txt"));
- /// ```
- ///
- /// # Error
- ///
- /// This function will return an error in the following situations, but is not
- /// limited to just these cases:
- ///
- /// * The `from` path is not a file
- /// * The `from` file does not exist
- /// * The current process does not have the permission rights to access
- /// `from` or write `to`
- ///
- /// Note that this copy is not atomic in that once the destination is
- /// ensured to not exist, there is nothing preventing the destination from
- /// being created and then destroyed by this operation.
- #[deprecated(since = "1.0.0", reason = "replaced with std::fs::copy")]
- #[unstable(feature = "old_io")]
- pub fn copy(from: &Path, to: &Path) -> IoResult<()> {
- fn update_err<T>(result: IoResult<T>, from: &Path, to: &Path) -> IoResult<T> {
- result.update_err("couldn't copy path", |e| {
- format!("{}; from={:?}; to={:?}", e, from.display(), to.display())
- })
- }
- if !from.is_file() {
- return update_err(Err(IoError {
- kind: old_io::MismatchedFileTypeForOperation,
- desc: "the source path is not an existing file",
- detail: None
- }), from, to)
- }
- let mut reader = try!(File::open(from));
- let mut writer = try!(File::create(to));
- try!(update_err(super::util::copy(&mut reader, &mut writer), from, to));
- chmod(to, try!(update_err(from.stat(), from, to)).perm)
- }
- /// Changes the permission mode bits found on a file or a directory. This
- /// function takes a mask from the `io` module
- ///
- /// # Examples
- ///
- /// ```
- /// # #![allow(unused_must_use)]
- /// use std::old_io;
- /// use std::old_io::fs;
- ///
- /// fs::chmod(&Path::new("file.txt"), old_io::USER_FILE);
- /// fs::chmod(&Path::new("file.txt"), old_io::USER_READ | old_io::USER_WRITE);
- /// fs::chmod(&Path::new("dir"), old_io::USER_DIR);
- /// fs::chmod(&Path::new("file.exe"), old_io::USER_EXEC);
- /// ```
- ///
- /// # Error
- ///
- /// This function will return an error if the provided `path` doesn't exist, if
- /// the process lacks permissions to change the attributes of the file, or if
- /// some other I/O error is encountered.
- #[deprecated(since = "1.0.0", reason = "replaced with std::fs::set_permissions")]
- #[unstable(feature = "old_io")]
- pub fn chmod(path: &Path, mode: old_io::FilePermission) -> IoResult<()> {
- fs_imp::chmod(path, mode.bits() as uint)
- .update_err("couldn't chmod path", |e|
- format!("{}; path={}; mode={:?}", e, path.display(), mode))
- }
- /// Change the user and group owners of a file at the specified path.
- #[unstable(feature = "old_fs")]
- pub fn chown(path: &Path, uid: int, gid: int) -> IoResult<()> {
- fs_imp::chown(path, uid, gid)
- .update_err("couldn't chown path", |e|
- format!("{}; path={}; uid={}; gid={}", e, path.display(), uid, gid))
- }
- /// Creates a new hard link on the filesystem. The `dst` path will be a
- /// link pointing to the `src` path. Note that systems often require these
- /// two paths to both be located on the same filesystem.
- #[deprecated(since = "1.0.0", reason = "replaced with std::fs::hard_link")]
- #[unstable(feature = "old_io")]
- pub fn link(src: &Path, dst: &Path) -> IoResult<()> {
- fs_imp::link(src, dst)
- .update_err("couldn't link path", |e|
- format!("{}; src={:?}; dest={:?}", e, src.display(), dst.display()))
- }
- /// Creates a new symbolic link on the filesystem. The `dst` path will be a
- /// symlink pointing to the `src` path.
- #[deprecated(since = "1.0.0", reason = "replaced with std::fs::soft_link")]
- #[unstable(feature = "old_io")]
- pub fn symlink(src: &Path, dst: &Path) -> IoResult<()> {
- fs_imp::symlink(src, dst)
- .update_err("couldn't symlink path", |e|
- format!("{}; src={:?}; dest={:?}", e, src.display(), dst.display()))
- }
- /// Reads a symlink, returning the file that the symlink points to.
- ///
- /// # Error
- ///
- /// This function will return an error on failure. Failure conditions include
- /// reading a file that does not exist or reading a file that is not a symlink.
- #[deprecated(since = "1.0.0", reason = "replaced with std::fs::read_link")]
- #[unstable(feature = "old_io")]
- pub fn readlink(path: &Path) -> IoResult<Path> {
- fs_imp::readlink(path)
- .update_err("couldn't resolve symlink for path", |e|
- format!("{}; path={}", e, path.display()))
- }
- /// Create a new, empty directory at the provided path
- ///
- /// # Examples
- ///
- /// ```
- /// # #![allow(unused_must_use)]
- /// use std::old_io;
- /// use std::old_io::fs;
- ///
- /// let p = Path::new("/some/dir");
- /// fs::mkdir(&p, old_io::USER_RWX);
- /// ```
- ///
- /// # Error
- ///
- /// This function will return an error if the user lacks permissions to make a
- /// new directory at the provided `path`, or if the directory already exists.
- #[unstable(feature = "old_fs")]
- pub fn mkdir(path: &Path, mode: FilePermission) -> IoResult<()> {
- fs_imp::mkdir(path, mode.bits() as uint)
- .update_err("couldn't create directory", |e|
- format!("{}; path={}; mode={}", e, path.display(), mode))
- }
- /// Remove an existing, empty directory
- ///
- /// # Examples
- ///
- /// ```
- /// # #![allow(unused_must_use)]
- /// use std::old_io::fs;
- ///
- /// let p = Path::new("/some/dir");
- /// fs::rmdir(&p);
- /// ```
- ///
- /// # Error
- ///
- /// This function will return an error if the user lacks permissions to remove
- /// the directory at the provided `path`, or if the directory isn't empty.
- #[deprecated(since = "1.0.0", reason = "replaced with std::fs::remove_dir")]
- #[unstable(feature = "old_io")]
- pub fn rmdir(path: &Path) -> IoResult<()> {
- fs_imp::rmdir(path)
- .update_err("couldn't remove directory", |e|
- format!("{}; path={}", e, path.display()))
- }
- /// Retrieve a vector containing all entries within a provided directory
- ///
- /// # Examples
- ///
- /// ```
- /// use std::old_io::fs::PathExtensions;
- /// use std::old_io::fs;
- /// use std::old_io;
- ///
- /// // one possible implementation of fs::walk_dir only visiting files
- /// fn visit_dirs<F>(dir: &Path, cb: &mut F) -> old_io::IoResult<()> where
- /// F: FnMut(&Path),
- /// {
- /// if dir.is_dir() {
- /// let contents = try!(fs::readdir(dir));
- /// for entry in contents.iter() {
- /// if entry.is_dir() {
- /// try!(visit_dirs(entry, cb));
- /// } else {
- /// (*cb)(entry);
- /// }
- /// }
- /// Ok(())
- /// } else {
- /// Err(old_io::standard_error(old_io::InvalidInput))
- /// }
- /// }
- /// ```
- ///
- /// # Error
- ///
- /// This function will return an error if the provided `path` doesn't exist, if
- /// the process lacks permissions to view the contents or if the `path` points
- /// at a non-directory file
- #[deprecated(since = "1.0.0", reason = "replaced with std::fs::read_dir")]
- #[unstable(feature = "old_io")]
- pub fn readdir(path: &Path) -> IoResult<Vec<Path>> {
- fs_imp::readdir(path)
- .update_err("couldn't read directory",
- |e| format!("{}; path={}", e, path.display()))
- }
- /// Returns an iterator that will recursively walk the directory structure
- /// rooted at `path`. The path given will not be iterated over, and this will
- /// perform iteration in some top-down order. The contents of unreadable
- /// subdirectories are ignored.
- #[deprecated(since = "1.0.0", reason = "replaced with std::fs::walk_dir")]
- #[unstable(feature = "old_io")]
- pub fn walk_dir(path: &Path) -> IoResult<Directories> {
- Ok(Directories {
- stack: try!(readdir(path).update_err("couldn't walk directory",
- |e| format!("{}; path={}", e, path.display())))
- })
- }
- /// An iterator that walks over a directory
- #[derive(Clone)]
- #[deprecated(since = "1.0.0", reason = "replaced with std::fs::ReadDir")]
- #[unstable(feature = "old_io")]
- pub struct Directories {
- stack: Vec<Path>,
- }
- impl Iterator for Directories {
- type Item = Path;
- fn next(&mut self) -> Option<Path> {
- match self.stack.pop() {
- Some(path) => {
- if path.is_dir() {
- match readdir(&path) {
- Ok(dirs) => { self.stack.extend(dirs.into_iter()); }
- Err(..) => {}
- }
- }
- Some(path)
- }
- None => None
- }
- }
- }
- /// Recursively create a directory and all of its parent components if they
- /// are missing.
- ///
- /// # Error
- ///
- /// See `fs::mkdir`.
- #[unstable(feature = "old_fs")]
- pub fn mkdir_recursive(path: &Path, mode: FilePermission) -> IoResult<()> {
- // tjc: if directory exists but with different permissions,
- // should we return false?
- if path.is_dir() {
- return Ok(())
- }
- let comps = path.components();
- let mut curpath = path.root_path().unwrap_or(Path::new("."));
- for c in comps {
- curpath.push(c);
- let result = mkdir(&curpath, mode)
- .update_err("couldn't recursively mkdir",
- |e| format!("{}; path={}", e, path.display()));
- match result {
- Err(mkdir_err) => {
- // already exists ?
- if try!(stat(&curpath)).kind != FileType::Directory {
- return Err(mkdir_err);
- }
- }
- Ok(()) => ()
- }
- }
- Ok(())
- }
- /// Removes a directory at this path, after removing all its contents. Use
- /// carefully!
- ///
- /// # Error
- ///
- /// See `file::unlink` and `fs::readdir`
- #[deprecated(since = "1.0.0", reason = "replaced with std::fs::remove_dir_all")]
- #[unstable(feature = "old_io")]
- pub fn rmdir_recursive(path: &Path) -> IoResult<()> {
- let mut rm_stack = Vec::new();
- rm_stack.push(path.clone());
- fn rmdir_failed(err: &IoError, path: &Path) -> String {
- format!("rmdir_recursive failed; path={}; cause={}",
- path.display(), err)
- }
- fn update_err<T>(err: IoResult<T>, path: &Path) -> IoResult<T> {
- err.update_err("couldn't recursively rmdir",
- |e| rmdir_failed(e, path))
- }
- while !rm_stack.is_empty() {
- let children = try!(readdir(rm_stack.last().unwrap())
- .update_detail(|e| rmdir_failed(e, path)));
- let mut has_child_dir = false;
- // delete all regular files in the way and push subdirs
- // on the stack
- for child in children {
- // FIXME(#12795) we should use lstat in all cases
- let child_type = match cfg!(windows) {
- true => try!(update_err(stat(&child), path)),
- false => try!(update_err(lstat(&child), path))
- };
- if child_type.kind == FileType::Directory {
- rm_stack.push(child);
- has_child_dir = true;
- } else {
- // we can carry on safely if the file is already gone
- // (eg: deleted by someone else since readdir)
- match update_err(unlink(&child), path) {
- Ok(()) => (),
- Err(ref e) if e.kind == old_io::FileNotFound => (),
- Err(e) => return Err(e)
- }
- }
- }
- // if no subdir was found, let's pop and delete
- if !has_child_dir {
- let result = update_err(rmdir(&rm_stack.pop().unwrap()), path);
- match result {
- Ok(()) => (),
- Err(ref e) if e.kind == old_io::FileNotFound => (),
- Err(e) => return Err(e)
- }
- }
- }
- Ok(())
- }
- /// Changes the timestamps for a file's last modification and access time.
- /// The file at the path specified will have its last access time set to
- /// `atime` and its modification time set to `mtime`. The times specified should
- /// be in milliseconds.
- // FIXME(#10301) these arguments should not be u64
- #[deprecated(since = "1.0.0", reason = "replaced with std::fs::set_file_times")]
- #[unstable(feature = "old_io")]
- pub fn change_file_times(path: &Path, atime: u64, mtime: u64) -> IoResult<()> {
- fs_imp::utime(path, atime, mtime)
- .update_err("couldn't change_file_times", |e|
- format!("{}; path={}", e, path.display()))
- }
- impl Reader for File {
- fn read(&mut self, buf: &mut [u8]) -> IoResult<uint> {
- fn update_err<T>(result: IoResult<T>, file: &File) -> IoResult<T> {
- result.update_err("couldn't read file",
- |e| format!("{}; path={}",
- e, file.path.display()))
- }
- let result = update_err(self.fd.read(buf), self);
- match result {
- Ok(read) => {
- self.last_nread = read as int;
- match read {
- 0 => update_err(Err(standard_error(old_io::EndOfFile)), self),
- _ => Ok(read as uint)
- }
- },
- Err(e) => Err(e)
- }
- }
- }
- impl Writer for File {
- fn write_all(&mut self, buf: &[u8]) -> IoResult<()> {
- self.fd.write(buf)
- .update_err("couldn't write to file",
- |e| format!("{}; path={}", e, self.path.display()))
- }
- }
- impl Seek for File {
- fn tell(&self) -> IoResult<u64> {
- self.fd.tell()
- .update_err("couldn't retrieve file cursor (`tell`)",
- |e| format!("{}; path={}", e, self.path.display()))
- }
- fn seek(&mut self, pos: i64, style: SeekStyle) -> IoResult<()> {
- let err = match self.fd.seek(pos, style) {
- Ok(_) => {
- // successful seek resets EOF indicator
- self.last_nread = -1;
- Ok(())
- }
- Err(e) => Err(e),
- };
- err.update_err("couldn't seek in file",
- |e| format!("{}; path={}", e, self.path.display()))
- }
- }
- /// Utility methods for paths.
- #[deprecated(since = "1.0.0", reason = "replaced with std::fs::PathExt")]
- #[unstable(feature = "old_io")]
- pub trait PathExtensions {
- /// Get information on the file, directory, etc at this path.
- ///
- /// Consult the `fs::stat` documentation for more info.
- ///
- /// This call preserves identical runtime/error semantics with `file::stat`.
- fn stat(&self) -> IoResult<FileStat>;
- /// Get information on the file, directory, etc at this path, not following
- /// symlinks.
- ///
- /// Consult the `fs::lstat` documentation for more info.
- ///
- /// This call preserves identical runtime/error semantics with `file::lstat`.
- fn lstat(&self) -> IoResult<FileStat>;
- /// Boolean value indicator whether the underlying file exists on the local
- /// filesystem. Returns false in exactly the cases where `fs::stat` fails.
- fn exists(&self) -> bool;
- /// Whether the underlying implementation (be it a file path, or something
- /// else) points at a "regular file" on the FS. Will return false for paths
- /// to non-existent locations or directories or other non-regular files
- /// (named pipes, etc). Follows links when making this determination.
- fn is_file(&self) -> bool;
- /// Whether the underlying implementation (be it a file path, or something
- /// else) is pointing at a directory in the underlying FS. Will return
- /// false for paths to non-existent locations or if the item is not a
- /// directory (eg files, named pipes, etc). Follows links when making this
- /// determination.
- fn is_dir(&self) -> bool;
- }
- impl PathExtensions for old_path::Path {
- fn stat(&self) -> IoResult<FileStat> { stat(self) }
- fn lstat(&self) -> IoResult<FileStat> { lstat(self) }
- fn exists(&self) -> bool {
- self.stat().is_ok()
- }
- fn is_file(&self) -> bool {
- match self.stat() {
- Ok(s) => s.kind == FileType::RegularFile,
- Err(..) => false
- }
- }
- fn is_dir(&self) -> bool {
- match self.stat() {
- Ok(s) => s.kind == FileType::Directory,
- Err(..) => false
- }
- }
- }
- fn mode_string(mode: FileMode) -> &'static str {
- match mode {
- super::Open => "open",
- super::Append => "append",
- super::Truncate => "truncate"
- }
- }
- fn access_string(access: FileAccess) -> &'static str {
- match access {
- super::Read => "read",
- super::Write => "write",
- super::ReadWrite => "readwrite"
- }
- }
- #[cfg(test)]
- #[allow(unused_imports)]
- #[allow(unused_variables)]
- #[allow(unused_mut)]
- #[allow(deprecated)] // rand
- mod test {
- use prelude::v1::*;
- use old_io::{SeekSet, SeekCur, SeekEnd, Read, Open, ReadWrite, FileType};
- use old_io;
- use str;
- use old_io::fs::*;
- macro_rules! check { ($e:expr) => (
- match $e {
- Ok(t) => t,
- Err(e) => panic!("{} failed with: {:?}", stringify!($e), e),
- }
- ) }
- macro_rules! error { ($e:expr, $s:expr) => (
- match $e {
- Ok(_) => panic!("Unexpected success. Should've been: {:?}", $s),
- Err(ref err) => assert!(err.to_string().contains($s),
- format!("`{}` did not contain `{}`", err, $s))
- }
- ) }
- pub struct TempDir(Path);
- impl TempDir {
- fn join(&self, path: &str) -> Path {
- let TempDir(ref p) = *self;
- p.join(path)
- }
- fn path<'a>(&'a self) -> &'a Path {
- let TempDir(ref p) = *self;
- p
- }
- }
- impl Drop for TempDir {
- fn drop(&mut self) {
- // Gee, seeing how we're testing the fs module I sure hope that we
- // at least implement this correctly!
- let TempDir(ref p) = *self;
- check!(old_io::fs::rmdir_recursive(p));
- }
- }
- pub fn tmpdir() -> TempDir {
- use os;
- use rand;
- let ret = os::tmpdir().join(format!("rust-{}", rand::random::<u32>()));
- check!(old_io::fs::mkdir(&ret, old_io::USER_RWX));
- TempDir(ret)
- }
- #[test]
- fn file_test_io_smoke_test() {
- let message = "it's alright. have a good time";
- let tmpdir = tmpdir();
- let filename = &tmpdir.join("file_rt_io_file_test.txt");
- {
- let mut write_stream = File::open_mode(filename, Open, ReadWrite);
- check!(write_stream.write(message.as_bytes()));
- }
- {
- let mut read_stream = File::open_mode(filename, Open, Read);
- let mut read_buf = [0; 1028];
- let read_str = match check!(read_stream.read(&mut read_buf)) {
- -1|0 => panic!("shouldn't happen"),
- n => str::from_utf8(&read_buf[..n]).unwrap().to_string()
- };
- assert_eq!(read_str, message);
- }
- check!(unlink(filename));
- }
- #[test]
- fn invalid_path_raises() {
- let tmpdir = tmpdir();
- let filename = &tmpdir.join("file_that_does_not_exist.txt");
- let result = File::open_mode(filename, Open, Read);
- error!(result, "couldn't open path as file");
- if cfg!(unix) {
- error!(result, "no such file or directory");
- }
- error!(result, &format!("path={}; mode=open; access=read", filename.display()));
- }
- #[test]
- fn file_test_iounlinking_invalid_path_should_raise_condition() {
- let tmpdir = tmpdir();
- let filename = &tmpdir.join("file_another_file_that_does_not_exist.txt");
- let result = unlink(filename);
- error!(result, "couldn't unlink path");
- if cfg!(unix) {
- error!(result, "no such file or directory");
- }
- error!(result, &format!("path={}", filename.display()));
- }
- #[test]
- fn file_test_io_non_positional_read() {
- let message: &str = "ten-four";
- let mut read_mem = [0; 8];
- let tmpdir = tmpdir();
- let filename = &tmpdir.join("file_rt_io_file_test_positional.txt");
- {
- let mut rw_stream = File::open_mode(filename, Open, ReadWrite);
- check!(rw_stream.write(message.as_bytes()));
- }
- {
- let mut read_stream = File::open_mode(filename, Open, Read);
- {
- let read_buf = &mut read_mem[0..4];
- check!(read_stream.read(read_buf));
- }
- {
- let read_buf = &mut read_mem[4..8];
- check!(read_stream.read(read_buf));
- }
- }
- check!(unlink(filename));
- let read_str = str::from_utf8(&read_mem).unwrap();
- assert_eq!(read_str, message);
- }
- #[test]
- fn file_test_io_seek_and_tell_smoke_test() {
- let message = "ten-four";
- let mut read_mem = [0; 4];
- let set_cursor = 4 as u64;
- let mut tell_pos_pre_read;
- let mut tell_pos_post_read;
- let tmpdir = tmpdir();
- let filename = &tmpdir.join("file_rt_io_file_test_seeking.txt");
- {
- let mut rw_stream = File::open_mode(filename, Open, ReadWrite);
- check!(rw_stream.write(message.as_bytes()));
- }
- {
- let mut read_stream = File::open_mode(filename, Open, Read);
- check!(read_stream.seek(set_cursor as i64, SeekSet));
- tell_pos_pre_read = check!(read_stream.tell());
- check!(read_stream.read(&mut read_mem));
- tell_pos_post_read = check!(read_stream.tell());
- }
- check!(unlink(filename));
- let read_str = str::from_utf8(&read_mem).unwrap();
- assert_eq!(read_str, &message[4..8]);
- assert_eq!(tell_pos_pre_read, set_cursor);
- assert_eq!(tell_pos_post_read, message.len() as u64);
- }
- #[test]
- fn file_test_io_seek_and_write() {
- let initial_msg = "food-is-yummy";
- let overwrite_msg = "-the-bar!!";
- let final_msg = "foo-the-bar!!";
- let seek_idx = 3;
- let mut read_mem = [0; 13];
- let tmpdir = tmpdir();
- let filename = &tmpdir.join("file_rt_io_file_test_seek_and_write.txt");
- {
- let mut rw_stream = File::open_mode(filename, Open, ReadWrite);
- check!(rw_stream.write(initial_msg.as_bytes()));
- check!(rw_stream.seek(seek_idx as i64, SeekSet));
- check!(rw_stream.write(overwrite_msg.as_bytes()));
- }
- {
- let mut read_stream = File::open_mode(filename, Open, Read);
- check!(read_stream.read(&mut read_mem));
- }
- check!(unlink(filename));
- let read_str = str::from_utf8(&read_mem).unwrap();
- assert!(read_str == final_msg);
- }
- #[test]
- fn file_test_io_seek_shakedown() {
- use str; // 01234567890123
- let initial_msg = "qwer-asdf-zxcv";
- let chunk_one: &str = "qwer";
- let chunk_two: &str = "asdf";
- let chunk_three: &str = "zxcv";
- let mut read_mem = [0; 4];
- let tmpdir = tmpdir();
- let filename = &tmpdir.join("file_rt_io_file_test_seek_shakedown.txt");
- {
- let mut rw_stream = File::open_mode(filename, Open, ReadWrite);
- check!(rw_stream.write(initial_msg.as_bytes()));
- }
- {
- let mut read_stream = File::open_mode(filename, Open, Read);
- check!(read_stream.seek(-4, SeekEnd));
- check!(read_stream.read(&mut read_mem));
- assert_eq!(str::from_utf8(&read_mem).unwrap(), chunk_three);
- check!(read_stream.seek(-9, SeekCur));
- check!(read_stream.read(&mut read_mem));
- assert_eq!(str::from_utf8(&read_mem).unwrap(), chunk_two);
- check!(read_stream.seek(0, SeekSet));
- check!(read_stream.read(&mut read_mem));
- assert_eq!(str::from_utf8(&read_mem).unwrap(), chunk_one);
- }
- check!(unlink(filename));
- }
- #[test]
- fn file_test_stat_is_correct_on_is_file() {
- let tmpdir = tmpdir();
- let filename = &tmpdir.join("file_stat_correct_on_is_file.txt");
- {
- let mut fs = check!(File::open_mode(filename, Open, ReadWrite));
- let msg = "hw";
- fs.write(msg.as_bytes()).unwrap();
- let fstat_res = check!(fs.stat());
- assert_eq!(fstat_res.kind, FileType::RegularFile);
- }
- let stat_res_fn = check!(stat(filename));
- assert_eq!(stat_res_fn.kind, FileType::RegularFile);
- let stat_res_meth = check!(filename.stat());
- assert_eq!(stat_res_meth.kind, FileType::RegularFile);
- check!(unlink(filename));
- }
- #[test]
- fn file_test_stat_is_correct_on_is_dir() {
- let tmpdir = tmpdir();
- let filename = &tmpdir.join("file_stat_correct_on_is_dir");
- check!(mkdir(filename, old_io::USER_RWX));
- let stat_res_fn = check!(stat(filename));
- assert!(stat_res_fn.kind == FileType::Directory);
- let stat_res_meth = check!(filename.stat());
- assert!(stat_res_meth.kind == FileType::Directory);
- check!(rmdir(filename));
- }
- #[test]
- fn file_test_fileinfo_false_when_checking_is_file_on_a_directory() {
- let tmpdir = tmpdir();
- let dir = &tmpdir.join("fileinfo_false_on_dir");
- check!(mkdir(dir, old_io::USER_RWX));
- assert!(dir.is_file() == false);
- check!(rmdir(dir));
- }
- #[test]
- fn file_test_fileinfo_check_exists_before_and_after_file_creation() {
- let tmpdir = tmpdir();
- let file = &tmpdir.join("fileinfo_check_exists_b_and_a.txt");
- check!(File::create(file).write(b"foo"));
- assert!(file.exists());
- check!(unlink(file));
- assert!(!file.exists());
- }
- #[test]
- fn file_test_directoryinfo_check_exists_before_and_after_mkdir() {
- let tmpdir = tmpdir();
- let dir = &tmpdir.join("before_and_after_dir");
- assert!(!dir.exists());
- check!(mkdir(dir, old_io::USER_RWX));
- assert!(dir.exists());
- assert!(dir.is_dir());
- check!(rmdir(dir));
- assert!(!dir.exists());
- }
- #[test]
- fn file_test_directoryinfo_readdir() {
- use str;
- let tmpdir = tmpdir();
- let dir = &tmpdir.join("di_readdir");
- check!(mkdir(dir, old_io::USER_RWX));
- let prefix = "foo";
- for n in 0..3 {
- let f = dir.join(format!("{}.txt", n));
- let mut w = check!(File::create(&f));
- let msg_str = format!("{}{}", prefix, n);
- let msg = msg_str.as_bytes();
- check!(w.write(msg));
- }
- let files = check!(readdir(dir));
- let mut mem = [0; 4];
- for f in &files {
- {
- let n = f.filestem_str();
- check!(File::open(f).read(&mut mem));
- let read_str = str::from_utf8(&mem).unwrap();
- let expected = match n {
- None|Some("") => panic!("really shouldn't happen.."),
- Some(n) => format!("{}{}", prefix, n),
- };
- assert_eq!(expected, read_str);
- }
- check!(unlink(f));
- }
- check!(rmdir(dir));
- }
- #[test]
- fn file_test_walk_dir() {
- let tmpdir = tmpdir();
- let dir = &tmpdir.join("walk_dir");
- check!(mkdir(dir, old_io::USER_RWX));
- let dir1 = &dir.join("01/02/03");
- check!(mkdir_recursive(dir1, old_io::USER_RWX));
- check!(File::create(&dir1.join("04")));
- let dir2 = &dir.join("11/12/13");
- check!(mkdir_recursive(dir2, old_io::USER_RWX));
- check!(File::create(&dir2.join("14")));
- let mut files = check!(walk_dir(dir));
- let mut cur = [0; 2];
- for f in files {
- let stem = f.filestem_str().unwrap();
- let root = stem.as_bytes()[0] - b'0';
- let name = stem.as_bytes()[1] - b'0';
- assert!(cur[root as uint] < name);
- cur[root as uint] = name;
- }
- check!(rmdir_recursive(dir));
- }
- #[test]
- fn mkdir_path_already_exists_error() {
- use old_io::{IoError, PathAlreadyExists};
- let tmpdir = tmpdir();
- let dir = &tmpdir.join("mkdir_error_twice");
- check!(mkdir(dir, old_io::USER_RWX));
- match mkdir(dir, old_io::USER_RWX) {
- Err(IoError{kind:PathAlreadyExists,..}) => (),
- _ => assert!(false)
- };
- }
- #[test]
- fn recursive_mkdir() {
- let tmpdir = tmpdir();
- let dir = tmpdir.join("d1/d2");
- check!(mkdir_recursive(&dir, old_io::USER_RWX));
- assert!(dir.is_dir())
- }
- #[test]
- fn recursive_mkdir_failure() {
- let tmpdir = tmpdir();
- let dir = tmpdir.join("d1");
- let file = dir.join("f1");
- check!(mkdir_recursive(&dir, old_io::USER_RWX));
- check!(File::create(&file));
- let result = mkdir_recursive(&file, old_io::USER_RWX);
- error!(result, "couldn't recursively mkdir");
- error!(result, "couldn't create directory");
- error!(result, "mode=0700");
- error!(result, &format!("path={}", file.display()));
- }
- #[test]
- fn recursive_mkdir_slash() {
- check!(mkdir_recursive(&Path::new("/"), old_io::USER_RWX));
- }
- // FIXME(#12795) depends on lstat to work on windows
- #[cfg(not(windows))]
- #[test]
- fn recursive_rmdir() {
- let tmpdir = tmpdir();
- let d1 = tmpdir.join("d1");
- let dt = d1.join("t");
- let dtt = dt.join("t");
- let d2 = tmpdir.join("d2");
- let canary = d2.join("do_not_delete");
- check!(mkdir_recursive(&dtt, old_io::USER_RWX));
- check!(mkdir_recursive(&d2, old_io::USER_RWX));
- check!(File::create(&canary).write(b"foo"));
- check!(symlink(&d2, &dt.join("d2")));
- check!(rmdir_recursive(&d1));
- assert!(!d1.is_dir());
- assert!(canary.exists());
- }
- #[test]
- fn unicode_path_is_dir() {
- assert!(Path::new(".").is_dir());
- assert!(!Path::new("test/stdtest/fs.rs").is_dir());
- let tmpdir = tmpdir();
- let mut dirpath = tmpdir.path().clone();
- dirpath.push(format!("test-가一ー你好"));
- check!(mkdir(&dirpath, old_io::USER_RWX));
- assert!(dirpath.is_dir());
- let mut filepath = dirpath;
- filepath.push("unicode-file-\u{ac00}\u{4e00}\u{30fc}\u{4f60}\u{597d}.rs");
- check!(File::create(&filepath)); // ignore return; touch only
- assert!(!filepath.is_dir());
- assert!(filepath.exists());
- }
- #[test]
- fn unicode_path_exists() {
- assert!(Path::new(".").exists());
- assert!(!Path::new("test/nonexistent-bogus-path").exists());
- let tmpdir = tmpdir();
- let unicode = tmpdir.path();
- let unicode = unicode.join(format!("test-각丁ー再见"));
- check!(mkdir(&unicode, old_io::USER_RWX));
- assert!(unicode.exists());
- assert!(!Path::new("test/unicode-bogus-path-각丁ー再见").exists());
- }
- #[test]
- fn copy_file_does_not_exist() {
- let from = Path::new("test/nonexistent-bogus-path");
- let to = Path::new("test/other-bogus-path");
- error!(copy(&from, &to),
- &format!("couldn't copy path (the source path is not an \
- existing file; from={:?}; to={:?})",
- from.display(), to.display()));
- match copy(&from, &to) {
- Ok(..) => panic!(),
- Err(..) => {
- assert!(!from.exists());
- assert!(!to.exists());
- }
- }
- }
- #[test]
- fn copy_file_ok() {
- let tmpdir = tmpdir();
- let input = tmpdir.join("in.txt");
- let out = tmpdir.join("out.txt");
- check!(File::create(&input).write(b"hello"));
- check!(copy(&input, &out));
- let contents = check!(File::open(&out).read_to_end());
- assert_eq!(contents, b"hello");
- assert_eq!(check!(input.stat()).perm, check!(out.stat()).perm);
- }
- #[test]
- fn copy_file_dst_dir() {
- let tmpdir = tmpdir();
- let out = tmpdir.join("out");
- check!(File::create(&out));
- match copy(&out, tmpdir.path()) {
- Ok(..) => panic!(), Err(..) => {}
- }
- }
- #[test]
- fn copy_file_dst_exists() {
- let tmpdir = tmpdir();
- let input = tmpdir.join("in");
- let output = tmpdir.join("out");
- check!(File::create(&input).write("foo".as_bytes()));
- check!(File::create(&output).write("bar".as_bytes()));
- check!(copy(&input, &output));
- assert_eq!(check!(File::open(&output).read_to_end()),
- b"foo".to_vec());
- }
- #[test]
- fn copy_file_src_dir() {
- let tmpdir = tmpdir();
- let out = tmpdir.join("out");
- match copy(tmpdir.path(), &out) {
- Ok(..) => panic!(), Err(..) => {}
- }
- assert!(!out.exists());
- }
- #[test]
- fn copy_file_preserves_perm_bits() {
- let tmpdir = tmpdir();
- let input = tmpdir.join("in.txt");
- let out = tmpdir.join("out.txt");
- check!(File::create(&input));
- check!(chmod(&input, old_io::USER_READ));
- check!(copy(&input, &out));
- assert!(!check!(out.stat()).perm.intersects(old_io::USER_WRITE));
- check!(chmod(&input, old_io::USER_FILE));
- check!(chmod(&out, old_io::USER_FILE));
- }
- #[cfg(not(windows))] // FIXME(#10264) operation not permitted?
- #[test]
- fn symlinks_work() {
- let tmpdir = tmpdir();
- let input = tmpdir.join("in.txt");
- let out = tmpdir.join("out.txt");
- check!(File::create(&input).write("foobar".as_bytes()));
- check!(symlink(&input, &out));
- if cfg!(not(windows)) {
- assert_eq!(check!(lstat(&out)).kind, FileType::Symlink);
- assert_eq!(check!(out.lstat()).kind, FileType::Symlink);
- }
- assert_eq!(check!(stat(&out)).size, check!(stat(&input)).size);
- assert_eq!(check!(File::open(&out).read_to_end()),
- b"foobar".to_vec());
- }
- #[cfg(not(windows))] // apparently windows doesn't like symlinks
- #[test]
- fn symlink_noexist() {
- let tmpdir = tmpdir();
- // symlinks can point to things that don't exist
- check!(symlink(&tmpdir.join("foo"), &tmpdir.join("bar")));
- assert!(check!(readlink(&tmpdir.join("bar"))) == tmpdir.join("foo"));
- }
- #[test]
- fn readlink_not_symlink() {
- let tmpdir = tmpdir();
- match readlink(tmpdir.path()) {
- Ok(..) => panic!("wanted a failure"),
- Err(..) => {}
- }
- }
- #[test]
- fn links_work() {
- let tmpdir = tmpdir();
- let input = tmpdir.join("in.txt");
- let out = tmpdir.join("out.txt");
- check!(File::create(&input).write("foobar".as_bytes()));
- check!(link(&input, &out));
- if cfg!(not(windows)) {
- assert_eq!(check!(lstat(&out)).kind, FileType::RegularFile);
- assert_eq!(check!(out.lstat()).kind, FileType::RegularFile);
- assert_eq!(check!(stat(&out)).unstable.nlink, 2);
- assert_eq!(check!(out.stat()).unstable.nlink, 2);
- }
- assert_eq!(check!(stat(&out)).size, check!(stat(&input)).size);
- assert_eq!(check!(stat(&out)).size, check!(input.stat()).size);
- assert_eq!(check!(File::open(&out).read_to_end()),
- b"foobar".to_vec());
- // can't link to yourself
- match link(&input, &input) {
- Ok(..) => panic!("wanted a failure"),
- Err(..) => {}
- }
- // can't link to something that doesn't exist
- match link(&tmpdir.join("foo"), &tmpdir.join("bar")) {
- Ok(..) => panic!("wanted a failure"),
- Err(..) => {}
- }
- }
- #[test]
- fn chmod_works() {
- let tmpdir = tmpdir();
- let file = tmpdir.join("in.txt");
- check!(File::create(&file));
- …
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