mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-28 09:44:08 +00:00
Added platform notes to std::fs public functions.
This commit is contained in:
Nathan
parent
d4b67cd7cc
commit
7f36a18df8
200
src/libstd/fs.rs
200
src/libstd/fs.rs
@ -758,11 +758,19 @@ impl AsInner<fs_imp::DirEntry> for DirEntry {
|
||||
/// guarantee that the file is immediately deleted (e.g. depending on
|
||||
/// platform, other open file descriptors may prevent immediate removal).
|
||||
///
|
||||
/// # Platform behavior
|
||||
///
|
||||
/// This function currently corresponds to the `unlink` function on Unix
|
||||
/// and the `DeleteFile` function on Windows. Note that, this
|
||||
/// [may change in the future.][https://github.com/rust-lang/rust/pull/28613]
|
||||
///
|
||||
/// # Errors
|
||||
///
|
||||
/// 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.
|
||||
/// This function will return an error in the following situations, but is not
|
||||
/// limited to just these cases:
|
||||
///
|
||||
/// * `path` points to a directory
|
||||
/// * The user lacks permissions to remove the file
|
||||
///
|
||||
/// # Examples
|
||||
///
|
||||
@ -785,6 +793,20 @@ pub fn remove_file<P: AsRef<Path>>(path: P) -> io::Result<()> {
|
||||
/// This function will traverse symbolic links to query information about the
|
||||
/// destination file.
|
||||
///
|
||||
/// # Platform behavior
|
||||
///
|
||||
/// This function currently corresponds to the `stat` function on Unix
|
||||
/// and the `GetFileAttributesEx` function on Windows. Note that, this
|
||||
/// [may change in the future.][https://github.com/rust-lang/rust/pull/28613]
|
||||
///
|
||||
/// # Errors
|
||||
///
|
||||
/// This function will return an error in the following situations, but is not
|
||||
/// limited to just these cases:
|
||||
///
|
||||
/// * The user lacks permissions to perform `metadata` call on `path`
|
||||
/// * `path` does not exist
|
||||
///
|
||||
/// # Examples
|
||||
///
|
||||
/// ```rust
|
||||
@ -796,12 +818,6 @@ pub fn remove_file<P: AsRef<Path>>(path: P) -> io::Result<()> {
|
||||
/// # Ok(())
|
||||
/// # }
|
||||
/// ```
|
||||
///
|
||||
/// # Errors
|
||||
///
|
||||
/// This function will return an error if the user lacks the requisite
|
||||
/// permissions to perform a `metadata` call on the given `path` or if there
|
||||
/// is no entry in the filesystem at the provided path.
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
pub fn metadata<P: AsRef<Path>>(path: P) -> io::Result<Metadata> {
|
||||
fs_imp::stat(path.as_ref()).map(Metadata)
|
||||
@ -809,6 +825,20 @@ pub fn metadata<P: AsRef<Path>>(path: P) -> io::Result<Metadata> {
|
||||
|
||||
/// Query the metadata about a file without following symlinks.
|
||||
///
|
||||
/// # Platform behavior
|
||||
///
|
||||
/// This function currently corresponds to the `lstat` function on Unix
|
||||
/// and the `GetFileAttributesEx` function on Windows. Note that, this
|
||||
/// [may change in the future.][https://github.com/rust-lang/rust/pull/28613]
|
||||
///
|
||||
/// # Errors
|
||||
///
|
||||
/// This function will return an error in the following situations, but is not
|
||||
/// limited to just these cases:
|
||||
///
|
||||
/// * The user lacks permissions to perform `metadata` call on `path`
|
||||
/// * `path` does not exist
|
||||
///
|
||||
/// # Examples
|
||||
///
|
||||
/// ```rust
|
||||
@ -829,12 +859,20 @@ pub fn symlink_metadata<P: AsRef<Path>>(path: P) -> io::Result<Metadata> {
|
||||
///
|
||||
/// This will not work if the new name is on a different mount point.
|
||||
///
|
||||
/// # Platform behavior
|
||||
///
|
||||
/// This function currently corresponds to the `rename` function on Unix
|
||||
/// and the `MoveFileEx` function with the `MOVEFILE_REPLACE_EXISTING` flag on Windows.
|
||||
/// Note that, this [may change in the future.][https://github.com/rust-lang/rust/pull/28613]
|
||||
///
|
||||
/// # Errors
|
||||
///
|
||||
/// This function will return an error if the provided `from` doesn't exist, if
|
||||
/// the process lacks permissions to view the contents, if `from` and `to`
|
||||
/// reside on separate filesystems, or if some other intermittent I/O error
|
||||
/// occurs.
|
||||
/// This function will return an error in the following situations, but is not
|
||||
/// limited to just these cases:
|
||||
///
|
||||
/// * `from` does not exist
|
||||
/// * The user lacks permissions to view contents
|
||||
/// * `from` and `to` are on separate filesystems
|
||||
///
|
||||
/// # Examples
|
||||
///
|
||||
@ -861,6 +899,14 @@ pub fn rename<P: AsRef<Path>, Q: AsRef<Path>>(from: P, to: Q) -> io::Result<()>
|
||||
///
|
||||
/// On success, the total number of bytes copied is returned.
|
||||
///
|
||||
/// # Platform behavior
|
||||
///
|
||||
/// This function currently corresponds to the `open` function in Unix
|
||||
/// with `O_RDONLY` for `from` and `O_WRONLY`, `O_CREAT`, and `O_TRUNC` for `to`.
|
||||
/// `O_CLOEXEC` is set for returned file descriptors.
|
||||
/// On Windows, this function currently corresponds to `CopyFileEx`.
|
||||
/// Note that, this [may change in the future.][https://github.com/rust-lang/rust/pull/28613]
|
||||
///
|
||||
/// # Errors
|
||||
///
|
||||
/// This function will return an error in the following situations, but is not
|
||||
@ -890,6 +936,19 @@ pub fn copy<P: AsRef<Path>, Q: AsRef<Path>>(from: P, to: Q) -> io::Result<u64> {
|
||||
/// 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.
|
||||
///
|
||||
/// # Platform behavior
|
||||
///
|
||||
/// This function currently corresponds to the `link` function on Unix
|
||||
/// and the `CreateHardLink` function on Windows.
|
||||
/// Note that, this [may change in the future.][https://github.com/rust-lang/rust/pull/28613]
|
||||
///
|
||||
/// # Errors
|
||||
///
|
||||
/// This function will return an error in the following situations, but is not
|
||||
/// limited to just these cases:
|
||||
///
|
||||
/// * The `src` path is not a file or doesn't exist
|
||||
///
|
||||
/// # Examples
|
||||
///
|
||||
/// ```
|
||||
@ -933,11 +992,20 @@ pub fn soft_link<P: AsRef<Path>, Q: AsRef<Path>>(src: P, dst: Q) -> io::Result<(
|
||||
|
||||
/// Reads a symbolic link, returning the file that the link points to.
|
||||
///
|
||||
/// # Platform behavior
|
||||
///
|
||||
/// This function currently corresponds to the `readlink` function on Unix
|
||||
/// and the `CreateFile` function with `FILE_FLAG_OPEN_REPARSE_POINT` and
|
||||
/// `FILE_FLAG_BACKUP_SEMANTICS` flags on Windows.
|
||||
/// Note that, this [may change in the future.][https://github.com/rust-lang/rust/pull/28613]
|
||||
///
|
||||
/// # Errors
|
||||
///
|
||||
/// 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 symbolic
|
||||
/// link.
|
||||
/// This function will return an error in the following situations, but is not
|
||||
/// limited to just these cases:
|
||||
///
|
||||
/// * `path` is not a symbolic link
|
||||
/// * `path` does not exist
|
||||
///
|
||||
/// # Examples
|
||||
///
|
||||
@ -957,8 +1025,19 @@ pub fn read_link<P: AsRef<Path>>(path: P) -> io::Result<PathBuf> {
|
||||
/// Returns the canonical form of a path with all intermediate components
|
||||
/// normalized and symbolic links resolved.
|
||||
///
|
||||
/// This function may return an error in situations like where the path does not
|
||||
/// exist, a component in the path is not a directory, or an I/O error happens.
|
||||
/// # Platform behavior
|
||||
///
|
||||
/// This function currently corresponds to the `realpath` function on Unix
|
||||
/// and the `CreateFile` and `GetFinalPathNameByHandle` functions on Windows.
|
||||
/// Note that, this [may change in the future.][https://github.com/rust-lang/rust/pull/28613]
|
||||
///
|
||||
/// # Errors
|
||||
///
|
||||
/// This function will return an error in the following situations, but is not
|
||||
/// limited to just these cases:
|
||||
///
|
||||
/// * `path` does not exist
|
||||
/// * A component in path is not a directory
|
||||
///
|
||||
/// # Examples
|
||||
///
|
||||
@ -977,10 +1056,19 @@ pub fn canonicalize<P: AsRef<Path>>(path: P) -> io::Result<PathBuf> {
|
||||
|
||||
/// Creates a new, empty directory at the provided path
|
||||
///
|
||||
/// # Platform behavior
|
||||
///
|
||||
/// This function currently corresponds to the `mkdir` function on Unix
|
||||
/// and the `CreateDirectory` function on Windows.
|
||||
/// Note that, this [may change in the future.][https://github.com/rust-lang/rust/pull/28613]
|
||||
///
|
||||
/// # Errors
|
||||
///
|
||||
/// 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.
|
||||
/// This function will return an error in the following situations, but is not
|
||||
/// limited to just these cases:
|
||||
///
|
||||
/// * User lacks permissions to create directory at `path`
|
||||
/// * `path` already exists
|
||||
///
|
||||
/// # Examples
|
||||
///
|
||||
@ -1000,9 +1088,18 @@ pub fn create_dir<P: AsRef<Path>>(path: P) -> io::Result<()> {
|
||||
/// Recursively create a directory and all of its parent components if they
|
||||
/// are missing.
|
||||
///
|
||||
/// # Platform behavior
|
||||
///
|
||||
/// This function currently corresponds to the `mkdir` function on Unix
|
||||
/// and the `CreateDirectory` function on Windows.
|
||||
/// Note that, this [may change in the future.][https://github.com/rust-lang/rust/pull/28613]
|
||||
///
|
||||
/// # Errors
|
||||
///
|
||||
/// This function will fail if any directory in the path specified by `path`
|
||||
/// This function will return an error in the following situations, but is not
|
||||
/// limited to just these cases:
|
||||
///
|
||||
/// * If any directory in the path specified by `path`
|
||||
/// does not already exist and it could not be created otherwise. The specific
|
||||
/// error conditions for when a directory is being created (after it is
|
||||
/// determined to not exist) are outlined by `fs::create_dir`.
|
||||
@ -1024,10 +1121,19 @@ pub fn create_dir_all<P: AsRef<Path>>(path: P) -> io::Result<()> {
|
||||
|
||||
/// Removes an existing, empty directory.
|
||||
///
|
||||
/// # Platform behavior
|
||||
///
|
||||
/// This function currently corresponds to the `rmdir` function on Unix
|
||||
/// and the `RemoveDirectory` function on Windows.
|
||||
/// Note that, this [may change in the future.][https://github.com/rust-lang/rust/pull/28613]
|
||||
///
|
||||
/// # Errors
|
||||
///
|
||||
/// 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.
|
||||
/// This function will return an error in the following situations, but is not
|
||||
/// limited to just these cases:
|
||||
///
|
||||
/// * The user lacks permissions to remove the directory at the provided `path`
|
||||
/// * The directory isn't empty
|
||||
///
|
||||
/// # Examples
|
||||
///
|
||||
@ -1050,6 +1156,13 @@ pub fn remove_dir<P: AsRef<Path>>(path: P) -> io::Result<()> {
|
||||
/// This function does **not** follow symbolic links and it will simply remove the
|
||||
/// symbolic link itself.
|
||||
///
|
||||
/// # Platform behavior
|
||||
///
|
||||
/// This function currently corresponds to `opendir`, `lstat`, `rm` and `rmdir` functions on Unix
|
||||
/// and the `FindFirstFile`, `GetFileAttributesEx`, `DeleteFile`, and `RemoveDirectory` functions
|
||||
/// on Windows.
|
||||
/// Note that, this [may change in the future.][https://github.com/rust-lang/rust/pull/28613]
|
||||
///
|
||||
/// # Errors
|
||||
///
|
||||
/// See `file::remove_file` and `fs::remove_dir`.
|
||||
@ -1087,6 +1200,21 @@ fn _remove_dir_all(path: &Path) -> io::Result<()> {
|
||||
/// The iterator will yield instances of `io::Result<DirEntry>`. New errors may
|
||||
/// be encountered after an iterator is initially constructed.
|
||||
///
|
||||
/// # Platform behavior
|
||||
///
|
||||
/// This function currently corresponds to the `opendir` function on Unix
|
||||
/// and the `FindFirstFile` function on Windows.
|
||||
/// Note that, this [may change in the future.][https://github.com/rust-lang/rust/pull/28613]
|
||||
///
|
||||
/// # Errors
|
||||
///
|
||||
/// This function will return an error in the following situations, but is not
|
||||
/// limited to just these cases:
|
||||
///
|
||||
/// * The provided `path` doesn't exist
|
||||
/// * The process lacks permissions to view the contents
|
||||
/// * The `path` points at a non-directory file
|
||||
///
|
||||
/// # Examples
|
||||
///
|
||||
/// ```
|
||||
@ -1109,12 +1237,6 @@ fn _remove_dir_all(path: &Path) -> io::Result<()> {
|
||||
/// Ok(())
|
||||
/// }
|
||||
/// ```
|
||||
///
|
||||
/// # Errors
|
||||
///
|
||||
/// 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
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
pub fn read_dir<P: AsRef<Path>>(path: P) -> io::Result<ReadDir> {
|
||||
fs_imp::readdir(path.as_ref()).map(ReadDir)
|
||||
@ -1180,6 +1302,20 @@ impl Iterator for WalkDir {
|
||||
|
||||
/// Changes the permissions found on a file or a directory.
|
||||
///
|
||||
/// # Platform behavior
|
||||
///
|
||||
/// This function currently corresponds to the `chmod` function on Unix
|
||||
/// and the `SetFileAttributes` function on Windows.
|
||||
/// Note that, this [may change in the future.][https://github.com/rust-lang/rust/pull/28613]
|
||||
///
|
||||
/// # Errors
|
||||
///
|
||||
/// This function will return an error in the following situations, but is not
|
||||
/// limited to just these cases:
|
||||
///
|
||||
/// * `path` does not exist
|
||||
/// * The user lacks the permission to change attributes of the file
|
||||
///
|
||||
/// # Examples
|
||||
///
|
||||
/// ```
|
||||
@ -1192,12 +1328,6 @@ impl Iterator for WalkDir {
|
||||
/// # Ok(())
|
||||
/// # }
|
||||
/// ```
|
||||
///
|
||||
/// # Errors
|
||||
///
|
||||
/// 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.
|
||||
#[stable(feature = "set_permissions", since = "1.1.0")]
|
||||
pub fn set_permissions<P: AsRef<Path>>(path: P, perm: Permissions)
|
||||
-> io::Result<()> {
|
||||
|
||||
Loading…
Reference in New Issue
Block a user