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John Doty 2024-03-08 11:03:01 -08:00
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{"files":{"Cargo.toml":"8d85b719c7034a8267e62b0d9c49995a52a25e3fcc13265dcde8229b3f3a1764","LICENSE-APACHE":"a60eea817514531668d7e00765731449fe14d059d3249e0bc93b36de45f759f2","LICENSE-MIT":"378f5840b258e2779c39418f3f2d7b2ba96f1c7917dd6be0713f88305dbda397","README.md":"6cd295d9f4efe412971b1855ecaf7b19ef3956006a652ea205c456a5d33550c1","src/lib.rs":"eec6b5e3be2c1d5e068a9724b503e729a1e11dae4cd1bc816110c94a0bc14fa0","src/redox.rs":"898997b73c20818cf4601a1f4bcdf1b7dbf3b5d9d071cdc9fce5d1652f6bfc43","src/unix/android.rs":"d929826a9a92003b7aaa6435adc220efbb70c15308f9eed5ee517d88451fcaf6","src/unix/linux.rs":"648498bdf715766eeffdc2dff6a58db51cf6b244c431a6d53c33cbc73f1998d4","src/unix/macos.rs":"1b19a24bee240aba8d564405991bb0ee36ba72217461c8ac6829144d28f7e046","src/unix/mod.rs":"a34faf9cfb0bd0f18d3d99f5e5b2733fb3c8cb4ef0d948084b62a98186b3595e","src/unix/utimensat.rs":"0876aa32393689fcb5eec913c5d34954956a715913d611749b04243a2dbcf897","src/unix/utimes.rs":"d2d8ca5daed3d1ec0a0aed1fc03450deb4b7f1fcdb96ed40b8d2cfefd0e827ee","src/wasm.rs":"a82734259846a3349d42da011c1065d21f3981bd20d6eb43495e34808b83af9a","src/windows.rs":"3314a0def8028d8f2a4bc01377d5874ab9ddf8684aad13573c89b427bf2d9911"},"package":"1ee447700ac8aa0b2f2bd7bc4462ad686ba06baa6727ac149a2d6277f0d240fd"}

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# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
#
# When uploading crates to the registry Cargo will automatically
# "normalize" Cargo.toml files for maximal compatibility
# with all versions of Cargo and also rewrite `path` dependencies
# to registry (e.g., crates.io) dependencies.
#
# If you are reading this file be aware that the original Cargo.toml
# will likely look very different (and much more reasonable).
# See Cargo.toml.orig for the original contents.
[package]
edition = "2018"
name = "filetime"
version = "0.2.23"
authors = ["Alex Crichton <alex@alexcrichton.com>"]
description = """
Platform-agnostic accessors of timestamps in File metadata
"""
homepage = "https://github.com/alexcrichton/filetime"
documentation = "https://docs.rs/filetime"
readme = "README.md"
keywords = [
"timestamp",
"mtime",
]
license = "MIT/Apache-2.0"
repository = "https://github.com/alexcrichton/filetime"
[dependencies.cfg-if]
version = "1.0.0"
[dev-dependencies.tempfile]
version = "3"
[target."cfg(target_os = \"redox\")".dependencies.redox_syscall]
version = "0.4.1"
[target."cfg(unix)".dependencies.libc]
version = "0.2.27"
[target."cfg(windows)".dependencies.windows-sys]
version = "0.52.0"
features = [
"Win32_Foundation",
"Win32_Storage_FileSystem",
]

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Copyright (c) 2014 Alex Crichton
Permission is hereby granted, free of charge, to any
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DEALINGS IN THE SOFTWARE.

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# filetime
[Documentation](https://docs.rs/filetime)
A helper library for inspecting and setting the various timestamps of files in Rust. This
library takes into account cross-platform differences in terms of where the
timestamps are located, what they are called, and how to convert them into a
platform-independent representation.
```toml
# Cargo.toml
[dependencies]
filetime = "0.2"
```
# Advantages over using `std::fs::Metadata`
This library includes the ability to set this data, which std does not.
This library, when built with `RUSTFLAGS=--cfg emulate_second_only_system` set, will return all times rounded down to the second. This emulates the behavior of some file systems, mostly [HFS](https://en.wikipedia.org/wiki/HFS_Plus), allowing debugging on other hardware.
# License
This project is licensed under either of
* Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or
http://www.apache.org/licenses/LICENSE-2.0)
* MIT license ([LICENSE-MIT](LICENSE-MIT) or
http://opensource.org/licenses/MIT)
at your option.
### Contribution
Unless you explicitly state otherwise, any contribution intentionally submitted
for inclusion in Filetime by you, as defined in the Apache-2.0 license, shall be
dual licensed as above, without any additional terms or conditions.

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//! Timestamps for files in Rust
//!
//! This library provides platform-agnostic inspection of the various timestamps
//! present in the standard `fs::Metadata` structure.
//!
//! # Installation
//!
//! Add this to your `Cargo.toml`:
//!
//! ```toml
//! [dependencies]
//! filetime = "0.2"
//! ```
//!
//! # Usage
//!
//! ```no_run
//! use std::fs;
//! use filetime::FileTime;
//!
//! let metadata = fs::metadata("foo.txt").unwrap();
//!
//! let mtime = FileTime::from_last_modification_time(&metadata);
//! println!("{}", mtime);
//!
//! let atime = FileTime::from_last_access_time(&metadata);
//! assert!(mtime < atime);
//!
//! // Inspect values that can be interpreted across platforms
//! println!("{}", mtime.unix_seconds());
//! println!("{}", mtime.nanoseconds());
//!
//! // Print the platform-specific value of seconds
//! println!("{}", mtime.seconds());
//! ```
use std::fmt;
use std::fs;
use std::io;
use std::path::Path;
use std::time::{Duration, SystemTime, UNIX_EPOCH};
cfg_if::cfg_if! {
if #[cfg(target_os = "redox")] {
#[path = "redox.rs"]
mod imp;
} else if #[cfg(windows)] {
#[path = "windows.rs"]
mod imp;
} else if #[cfg(all(target_family = "wasm", not(target_os = "emscripten")))] {
#[path = "wasm.rs"]
mod imp;
} else {
#[path = "unix/mod.rs"]
mod imp;
}
}
/// A helper structure to represent a timestamp for a file.
///
/// The actual value contined within is platform-specific and does not have the
/// same meaning across platforms, but comparisons and stringification can be
/// significant among the same platform.
#[derive(Eq, PartialEq, Ord, PartialOrd, Debug, Copy, Clone, Hash)]
pub struct FileTime {
seconds: i64,
nanos: u32,
}
impl FileTime {
/// Creates a new timestamp representing a 0 time.
///
/// Useful for creating the base of a cmp::max chain of times.
pub const fn zero() -> FileTime {
FileTime {
seconds: 0,
nanos: 0,
}
}
const fn emulate_second_only_system(self) -> FileTime {
if cfg!(emulate_second_only_system) {
FileTime {
seconds: self.seconds,
nanos: 0,
}
} else {
self
}
}
/// Creates a new timestamp representing the current system time.
///
/// ```
/// # use filetime::FileTime;
/// #
/// # fn example() -> std::io::Result<()> {
/// # let path = "";
/// #
/// filetime::set_file_mtime(path, FileTime::now())?;
/// #
/// # Ok(())
/// # }
/// ```
///
/// Equivalent to `FileTime::from_system_time(SystemTime::now())`.
pub fn now() -> FileTime {
FileTime::from_system_time(SystemTime::now())
}
/// Creates a new instance of `FileTime` with a number of seconds and
/// nanoseconds relative to the Unix epoch, 1970-01-01T00:00:00Z.
///
/// Negative seconds represent times before the Unix epoch, and positive
/// values represent times after it. Nanos always count forwards in time.
///
/// Note that this is typically the relative point that Unix time stamps are
/// from, but on Windows the native time stamp is relative to January 1,
/// 1601 so the return value of `seconds` from the returned `FileTime`
/// instance may not be the same as that passed in.
pub const fn from_unix_time(seconds: i64, nanos: u32) -> FileTime {
FileTime {
seconds: seconds + if cfg!(windows) { 11644473600 } else { 0 },
nanos,
}
.emulate_second_only_system()
}
/// Creates a new timestamp from the last modification time listed in the
/// specified metadata.
///
/// The returned value corresponds to the `mtime` field of `stat` on Unix
/// platforms and the `ftLastWriteTime` field on Windows platforms.
pub fn from_last_modification_time(meta: &fs::Metadata) -> FileTime {
imp::from_last_modification_time(meta).emulate_second_only_system()
}
/// Creates a new timestamp from the last access time listed in the
/// specified metadata.
///
/// The returned value corresponds to the `atime` field of `stat` on Unix
/// platforms and the `ftLastAccessTime` field on Windows platforms.
pub fn from_last_access_time(meta: &fs::Metadata) -> FileTime {
imp::from_last_access_time(meta).emulate_second_only_system()
}
/// Creates a new timestamp from the creation time listed in the specified
/// metadata.
///
/// The returned value corresponds to the `birthtime` field of `stat` on
/// Unix platforms and the `ftCreationTime` field on Windows platforms. Note
/// that not all Unix platforms have this field available and may return
/// `None` in some circumstances.
pub fn from_creation_time(meta: &fs::Metadata) -> Option<FileTime> {
imp::from_creation_time(meta).map(|x| x.emulate_second_only_system())
}
/// Creates a new timestamp from the given SystemTime.
///
/// Windows counts file times since 1601-01-01T00:00:00Z, and cannot
/// represent times before this, but it's possible to create a SystemTime
/// that does. This function will error if passed such a SystemTime.
pub fn from_system_time(time: SystemTime) -> FileTime {
let epoch = if cfg!(windows) {
UNIX_EPOCH - Duration::from_secs(11644473600)
} else {
UNIX_EPOCH
};
time.duration_since(epoch)
.map(|d| FileTime {
seconds: d.as_secs() as i64,
nanos: d.subsec_nanos(),
})
.unwrap_or_else(|e| {
let until_epoch = e.duration();
let (sec_offset, nanos) = if until_epoch.subsec_nanos() == 0 {
(0, 0)
} else {
(-1, 1_000_000_000 - until_epoch.subsec_nanos())
};
FileTime {
seconds: -1 * until_epoch.as_secs() as i64 + sec_offset,
nanos,
}
})
.emulate_second_only_system()
}
/// Returns the whole number of seconds represented by this timestamp.
///
/// Note that this value's meaning is **platform specific**. On Unix
/// platform time stamps are typically relative to January 1, 1970, but on
/// Windows platforms time stamps are relative to January 1, 1601.
pub const fn seconds(&self) -> i64 {
self.seconds
}
/// Returns the whole number of seconds represented by this timestamp,
/// relative to the Unix epoch start of January 1, 1970.
///
/// Note that this does not return the same value as `seconds` for Windows
/// platforms as seconds are relative to a different date there.
pub const fn unix_seconds(&self) -> i64 {
self.seconds - if cfg!(windows) { 11644473600 } else { 0 }
}
/// Returns the nanosecond precision of this timestamp.
///
/// The returned value is always less than one billion and represents a
/// portion of a second forward from the seconds returned by the `seconds`
/// method.
pub const fn nanoseconds(&self) -> u32 {
self.nanos
}
}
impl fmt::Display for FileTime {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{}.{:09}s", self.seconds, self.nanos)
}
}
impl From<SystemTime> for FileTime {
fn from(time: SystemTime) -> FileTime {
FileTime::from_system_time(time)
}
}
/// Set the last access and modification times for a file on the filesystem.
///
/// This function will set the `atime` and `mtime` metadata fields for a file
/// on the local filesystem, returning any error encountered.
pub fn set_file_times<P>(p: P, atime: FileTime, mtime: FileTime) -> io::Result<()>
where
P: AsRef<Path>,
{
imp::set_file_times(p.as_ref(), atime, mtime)
}
/// Set the last access and modification times for a file handle.
///
/// This function will either or both of the `atime` and `mtime` metadata
/// fields for a file handle , returning any error encountered. If `None` is
/// specified then the time won't be updated. If `None` is specified for both
/// options then no action is taken.
pub fn set_file_handle_times(
f: &fs::File,
atime: Option<FileTime>,
mtime: Option<FileTime>,
) -> io::Result<()> {
imp::set_file_handle_times(f, atime, mtime)
}
/// Set the last access and modification times for a file on the filesystem.
/// This function does not follow symlink.
///
/// This function will set the `atime` and `mtime` metadata fields for a file
/// on the local filesystem, returning any error encountered.
pub fn set_symlink_file_times<P>(p: P, atime: FileTime, mtime: FileTime) -> io::Result<()>
where
P: AsRef<Path>,
{
imp::set_symlink_file_times(p.as_ref(), atime, mtime)
}
/// Set the last modification time for a file on the filesystem.
///
/// This function will set the `mtime` metadata field for a file on the local
/// filesystem, returning any error encountered.
///
/// # Platform support
///
/// Where supported this will attempt to issue just one syscall to update only
/// the `mtime`, but where not supported this may issue one syscall to learn the
/// existing `atime` so only the `mtime` can be configured.
pub fn set_file_mtime<P>(p: P, mtime: FileTime) -> io::Result<()>
where
P: AsRef<Path>,
{
imp::set_file_mtime(p.as_ref(), mtime)
}
/// Set the last access time for a file on the filesystem.
///
/// This function will set the `atime` metadata field for a file on the local
/// filesystem, returning any error encountered.
///
/// # Platform support
///
/// Where supported this will attempt to issue just one syscall to update only
/// the `atime`, but where not supported this may issue one syscall to learn the
/// existing `mtime` so only the `atime` can be configured.
pub fn set_file_atime<P>(p: P, atime: FileTime) -> io::Result<()>
where
P: AsRef<Path>,
{
imp::set_file_atime(p.as_ref(), atime)
}
#[cfg(test)]
mod tests {
use super::{
set_file_atime, set_file_handle_times, set_file_mtime, set_file_times,
set_symlink_file_times, FileTime,
};
use std::fs::{self, File};
use std::io;
use std::path::Path;
use std::time::{Duration, UNIX_EPOCH};
use tempfile::Builder;
#[cfg(unix)]
fn make_symlink_file<P, Q>(src: P, dst: Q) -> io::Result<()>
where
P: AsRef<Path>,
Q: AsRef<Path>,
{
use std::os::unix::fs::symlink;
symlink(src, dst)
}
#[cfg(windows)]
fn make_symlink_file<P, Q>(src: P, dst: Q) -> io::Result<()>
where
P: AsRef<Path>,
Q: AsRef<Path>,
{
use std::os::windows::fs::symlink_file;
symlink_file(src, dst)
}
#[cfg(unix)]
fn make_symlink_dir<P, Q>(src: P, dst: Q) -> io::Result<()>
where
P: AsRef<Path>,
Q: AsRef<Path>,
{
use std::os::unix::fs::symlink;
symlink(src, dst)
}
#[cfg(windows)]
fn make_symlink_dir<P, Q>(src: P, dst: Q) -> io::Result<()>
where
P: AsRef<Path>,
Q: AsRef<Path>,
{
use std::os::windows::fs::symlink_dir;
symlink_dir(src, dst)
}
#[test]
#[cfg(windows)]
fn from_unix_time_test() {
let time = FileTime::from_unix_time(10, 100_000_000);
assert_eq!(11644473610, time.seconds);
assert_eq!(100_000_000, time.nanos);
let time = FileTime::from_unix_time(-10, 100_000_000);
assert_eq!(11644473590, time.seconds);
assert_eq!(100_000_000, time.nanos);
let time = FileTime::from_unix_time(-12_000_000_000, 0);
assert_eq!(-355526400, time.seconds);
assert_eq!(0, time.nanos);
}
#[test]
#[cfg(not(windows))]
fn from_unix_time_test() {
let time = FileTime::from_unix_time(10, 100_000_000);
assert_eq!(10, time.seconds);
assert_eq!(100_000_000, time.nanos);
let time = FileTime::from_unix_time(-10, 100_000_000);
assert_eq!(-10, time.seconds);
assert_eq!(100_000_000, time.nanos);
let time = FileTime::from_unix_time(-12_000_000_000, 0);
assert_eq!(-12_000_000_000, time.seconds);
assert_eq!(0, time.nanos);
}
#[test]
#[cfg(windows)]
fn from_system_time_test() {
let time = FileTime::from_system_time(UNIX_EPOCH + Duration::from_secs(10));
assert_eq!(11644473610, time.seconds);
assert_eq!(0, time.nanos);
let time = FileTime::from_system_time(UNIX_EPOCH - Duration::from_secs(10));
assert_eq!(11644473590, time.seconds);
assert_eq!(0, time.nanos);
let time = FileTime::from_system_time(UNIX_EPOCH - Duration::from_millis(1100));
assert_eq!(11644473598, time.seconds);
assert_eq!(900_000_000, time.nanos);
let time = FileTime::from_system_time(UNIX_EPOCH - Duration::from_secs(12_000_000_000));
assert_eq!(-355526400, time.seconds);
assert_eq!(0, time.nanos);
}
#[test]
#[cfg(not(windows))]
fn from_system_time_test() {
let time = FileTime::from_system_time(UNIX_EPOCH + Duration::from_secs(10));
assert_eq!(10, time.seconds);
assert_eq!(0, time.nanos);
let time = FileTime::from_system_time(UNIX_EPOCH - Duration::from_secs(10));
assert_eq!(-10, time.seconds);
assert_eq!(0, time.nanos);
let time = FileTime::from_system_time(UNIX_EPOCH - Duration::from_millis(1100));
assert_eq!(-2, time.seconds);
assert_eq!(900_000_000, time.nanos);
let time = FileTime::from_system_time(UNIX_EPOCH - Duration::from_secs(12_000_000));
assert_eq!(-12_000_000, time.seconds);
assert_eq!(0, time.nanos);
}
#[test]
fn set_file_times_test() -> io::Result<()> {
let td = Builder::new().prefix("filetime").tempdir()?;
let path = td.path().join("foo.txt");
let mut f = File::create(&path)?;
let metadata = fs::metadata(&path)?;
let mtime = FileTime::from_last_modification_time(&metadata);
let atime = FileTime::from_last_access_time(&metadata);
set_file_times(&path, atime, mtime)?;
let new_mtime = FileTime::from_unix_time(10_000, 0);
set_file_times(&path, atime, new_mtime)?;
let metadata = fs::metadata(&path)?;
let mtime = FileTime::from_last_modification_time(&metadata);
assert_eq!(mtime, new_mtime, "modification should be updated");
// Update just mtime
let new_mtime = FileTime::from_unix_time(20_000, 0);
set_file_handle_times(&mut f, None, Some(new_mtime))?;
let metadata = f.metadata()?;
let mtime = FileTime::from_last_modification_time(&metadata);
assert_eq!(mtime, new_mtime, "modification time should be updated");
let new_atime = FileTime::from_last_access_time(&metadata);
assert_eq!(atime, new_atime, "accessed time should not be updated");
// Update just atime
let new_atime = FileTime::from_unix_time(30_000, 0);
set_file_handle_times(&mut f, Some(new_atime), None)?;
let metadata = f.metadata()?;
let mtime = FileTime::from_last_modification_time(&metadata);
assert_eq!(mtime, new_mtime, "modification time should not be updated");
let atime = FileTime::from_last_access_time(&metadata);
assert_eq!(atime, new_atime, "accessed time should be updated");
let spath = td.path().join("bar.txt");
make_symlink_file(&path, &spath)?;
let metadata = fs::symlink_metadata(&spath)?;
let smtime = FileTime::from_last_modification_time(&metadata);
set_file_times(&spath, atime, mtime)?;
let metadata = fs::metadata(&path)?;
let cur_mtime = FileTime::from_last_modification_time(&metadata);
assert_eq!(mtime, cur_mtime);
let metadata = fs::symlink_metadata(&spath)?;
let cur_mtime = FileTime::from_last_modification_time(&metadata);
assert_eq!(smtime, cur_mtime);
set_file_times(&spath, atime, new_mtime)?;
let metadata = fs::metadata(&path)?;
let mtime = FileTime::from_last_modification_time(&metadata);
assert_eq!(mtime, new_mtime);
let metadata = fs::symlink_metadata(&spath)?;
let mtime = FileTime::from_last_modification_time(&metadata);
assert_eq!(mtime, smtime);
Ok(())
}
#[test]
fn set_dir_times_test() -> io::Result<()> {
let td = Builder::new().prefix("filetime").tempdir()?;
let path = td.path().join("foo");
fs::create_dir(&path)?;
let metadata = fs::metadata(&path)?;
let mtime = FileTime::from_last_modification_time(&metadata);
let atime = FileTime::from_last_access_time(&metadata);
set_file_times(&path, atime, mtime)?;
let new_mtime = FileTime::from_unix_time(10_000, 0);
set_file_times(&path, atime, new_mtime)?;
let metadata = fs::metadata(&path)?;
let mtime = FileTime::from_last_modification_time(&metadata);
assert_eq!(mtime, new_mtime, "modification should be updated");
// Update just mtime
let new_mtime = FileTime::from_unix_time(20_000, 0);
set_file_mtime(&path, new_mtime)?;
let metadata = fs::metadata(&path)?;
let mtime = FileTime::from_last_modification_time(&metadata);
assert_eq!(mtime, new_mtime, "modification time should be updated");
let new_atime = FileTime::from_last_access_time(&metadata);
assert_eq!(atime, new_atime, "accessed time should not be updated");
// Update just atime
let new_atime = FileTime::from_unix_time(30_000, 0);
set_file_atime(&path, new_atime)?;
let metadata = fs::metadata(&path)?;
let mtime = FileTime::from_last_modification_time(&metadata);
assert_eq!(mtime, new_mtime, "modification time should not be updated");
let atime = FileTime::from_last_access_time(&metadata);
assert_eq!(atime, new_atime, "accessed time should be updated");
let spath = td.path().join("bar");
make_symlink_dir(&path, &spath)?;
let metadata = fs::symlink_metadata(&spath)?;
let smtime = FileTime::from_last_modification_time(&metadata);
set_file_times(&spath, atime, mtime)?;
let metadata = fs::metadata(&path)?;
let cur_mtime = FileTime::from_last_modification_time(&metadata);
assert_eq!(mtime, cur_mtime);
let metadata = fs::symlink_metadata(&spath)?;
let cur_mtime = FileTime::from_last_modification_time(&metadata);
assert_eq!(smtime, cur_mtime);
set_file_times(&spath, atime, new_mtime)?;
let metadata = fs::metadata(&path)?;
let mtime = FileTime::from_last_modification_time(&metadata);
assert_eq!(mtime, new_mtime);
let metadata = fs::symlink_metadata(&spath)?;
let mtime = FileTime::from_last_modification_time(&metadata);
assert_eq!(mtime, smtime);
Ok(())
}
#[test]
fn set_file_times_pre_unix_epoch_test() {
let td = Builder::new().prefix("filetime").tempdir().unwrap();
let path = td.path().join("foo.txt");
File::create(&path).unwrap();
let metadata = fs::metadata(&path).unwrap();
let mtime = FileTime::from_last_modification_time(&metadata);
let atime = FileTime::from_last_access_time(&metadata);
set_file_times(&path, atime, mtime).unwrap();
let new_mtime = FileTime::from_unix_time(-10_000, 0);
if cfg!(target_os = "aix") {
// On AIX, os checks if the unix timestamp is valid.
let result = set_file_times(&path, atime, new_mtime);
assert!(result.is_err());
assert!(result.err().unwrap().kind() == std::io::ErrorKind::InvalidInput);
} else {
set_file_times(&path, atime, new_mtime).unwrap();
let metadata = fs::metadata(&path).unwrap();
let mtime = FileTime::from_last_modification_time(&metadata);
assert_eq!(mtime, new_mtime);
}
}
#[test]
#[cfg(windows)]
fn set_file_times_pre_windows_epoch_test() {
let td = Builder::new().prefix("filetime").tempdir().unwrap();
let path = td.path().join("foo.txt");
File::create(&path).unwrap();
let metadata = fs::metadata(&path).unwrap();
let mtime = FileTime::from_last_modification_time(&metadata);
let atime = FileTime::from_last_access_time(&metadata);
set_file_times(&path, atime, mtime).unwrap();
let new_mtime = FileTime::from_unix_time(-12_000_000_000, 0);
assert!(set_file_times(&path, atime, new_mtime).is_err());
}
#[test]
fn set_symlink_file_times_test() {
let td = Builder::new().prefix("filetime").tempdir().unwrap();
let path = td.path().join("foo.txt");
File::create(&path).unwrap();
let metadata = fs::metadata(&path).unwrap();
let mtime = FileTime::from_last_modification_time(&metadata);
let atime = FileTime::from_last_access_time(&metadata);
set_symlink_file_times(&path, atime, mtime).unwrap();
let new_mtime = FileTime::from_unix_time(10_000, 0);
set_symlink_file_times(&path, atime, new_mtime).unwrap();
let metadata = fs::metadata(&path).unwrap();
let mtime = FileTime::from_last_modification_time(&metadata);
assert_eq!(mtime, new_mtime);
let spath = td.path().join("bar.txt");
make_symlink_file(&path, &spath).unwrap();
let metadata = fs::symlink_metadata(&spath).unwrap();
let smtime = FileTime::from_last_modification_time(&metadata);
let satime = FileTime::from_last_access_time(&metadata);
set_symlink_file_times(&spath, smtime, satime).unwrap();
let metadata = fs::metadata(&path).unwrap();
let mtime = FileTime::from_last_modification_time(&metadata);
assert_eq!(mtime, new_mtime);
let new_smtime = FileTime::from_unix_time(20_000, 0);
set_symlink_file_times(&spath, atime, new_smtime).unwrap();
let metadata = fs::metadata(&spath).unwrap();
let mtime = FileTime::from_last_modification_time(&metadata);
assert_eq!(mtime, new_mtime);
let metadata = fs::symlink_metadata(&spath).unwrap();
let mtime = FileTime::from_last_modification_time(&metadata);
assert_eq!(mtime, new_smtime);
}
#[test]
fn set_symlink_dir_times_test() {
let td = Builder::new().prefix("filetime").tempdir().unwrap();
let path = td.path().join("foo");
fs::create_dir(&path).unwrap();
let metadata = fs::metadata(&path).unwrap();
let mtime = FileTime::from_last_modification_time(&metadata);
let atime = FileTime::from_last_access_time(&metadata);
set_symlink_file_times(&path, atime, mtime).unwrap();
let new_mtime = FileTime::from_unix_time(10_000, 0);
set_symlink_file_times(&path, atime, new_mtime).unwrap();
let metadata = fs::metadata(&path).unwrap();
let mtime = FileTime::from_last_modification_time(&metadata);
assert_eq!(mtime, new_mtime);
let spath = td.path().join("bar");
make_symlink_dir(&path, &spath).unwrap();
let metadata = fs::symlink_metadata(&spath).unwrap();
let smtime = FileTime::from_last_modification_time(&metadata);
let satime = FileTime::from_last_access_time(&metadata);
set_symlink_file_times(&spath, smtime, satime).unwrap();
let metadata = fs::metadata(&path).unwrap();
let mtime = FileTime::from_last_modification_time(&metadata);
assert_eq!(mtime, new_mtime);
let new_smtime = FileTime::from_unix_time(20_000, 0);
set_symlink_file_times(&spath, atime, new_smtime).unwrap();
let metadata = fs::metadata(&spath).unwrap();
let mtime = FileTime::from_last_modification_time(&metadata);
assert_eq!(mtime, new_mtime);
let metadata = fs::symlink_metadata(&spath).unwrap();
let mtime = FileTime::from_last_modification_time(&metadata);
assert_eq!(mtime, new_smtime);
}
#[test]
fn set_single_time_test() {
use super::{set_file_atime, set_file_mtime};
let td = Builder::new().prefix("filetime").tempdir().unwrap();
let path = td.path().join("foo.txt");
File::create(&path).unwrap();
let metadata = fs::metadata(&path).unwrap();
let mtime = FileTime::from_last_modification_time(&metadata);
let atime = FileTime::from_last_access_time(&metadata);
set_file_times(&path, atime, mtime).unwrap();
let new_mtime = FileTime::from_unix_time(10_000, 0);
set_file_mtime(&path, new_mtime).unwrap();
let metadata = fs::metadata(&path).unwrap();
let mtime = FileTime::from_last_modification_time(&metadata);
assert_eq!(mtime, new_mtime, "modification time should be updated");
assert_eq!(
atime,
FileTime::from_last_access_time(&metadata),
"access time should not be updated",
);
let new_atime = FileTime::from_unix_time(20_000, 0);
set_file_atime(&path, new_atime).unwrap();
let metadata = fs::metadata(&path).unwrap();
let atime = FileTime::from_last_access_time(&metadata);
assert_eq!(atime, new_atime, "access time should be updated");
assert_eq!(
mtime,
FileTime::from_last_modification_time(&metadata),
"modification time should not be updated"
);
}
}

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use crate::FileTime;
use std::fs::{self, File};
use std::io;
use std::os::unix::prelude::*;
use std::path::Path;
pub fn set_file_times(p: &Path, atime: FileTime, mtime: FileTime) -> io::Result<()> {
let fd = open_redox(p, 0).map_err(|err| io::Error::from_raw_os_error(err.errno))?;
let res = set_file_times_redox(fd, atime, mtime);
let _ = syscall::close(fd);
res
}
pub fn set_file_mtime(p: &Path, mtime: FileTime) -> io::Result<()> {
let fd = open_redox(p, 0).map_err(|err| io::Error::from_raw_os_error(err.errno))?;
let mut st = syscall::Stat::default();
let res = match syscall::fstat(fd, &mut st) {
Err(err) => Err(io::Error::from_raw_os_error(err.errno)),
Ok(_) => set_file_times_redox(
fd,
FileTime {
seconds: st.st_atime as i64,
nanos: st.st_atime_nsec as u32,
},
mtime,
),
};
let _ = syscall::close(fd);
res
}
pub fn set_file_atime(p: &Path, atime: FileTime) -> io::Result<()> {
let fd = open_redox(p, 0).map_err(|err| io::Error::from_raw_os_error(err.errno))?;
let mut st = syscall::Stat::default();
let res = match syscall::fstat(fd, &mut st) {
Err(err) => Err(io::Error::from_raw_os_error(err.errno)),
Ok(_) => set_file_times_redox(
fd,
atime,
FileTime {
seconds: st.st_mtime as i64,
nanos: st.st_mtime_nsec as u32,
},
),
};
let _ = syscall::close(fd);
res
}
pub fn set_symlink_file_times(p: &Path, atime: FileTime, mtime: FileTime) -> io::Result<()> {
let fd = open_redox(p, syscall::O_NOFOLLOW)
.map_err(|err| io::Error::from_raw_os_error(err.errno))?;
let res = set_file_times_redox(fd, atime, mtime);
let _ = syscall::close(fd);
res
}
pub fn set_file_handle_times(
f: &File,
atime: Option<FileTime>,
mtime: Option<FileTime>,
) -> io::Result<()> {
let (atime1, mtime1) = match (atime, mtime) {
(Some(a), Some(b)) => (a, b),
(None, None) => return Ok(()),
(Some(a), None) => {
let meta = f.metadata()?;
(a, FileTime::from_last_modification_time(&meta))
}
(None, Some(b)) => {
let meta = f.metadata()?;
(FileTime::from_last_access_time(&meta), b)
}
};
set_file_times_redox(f.as_raw_fd() as usize, atime1, mtime1)
}
fn open_redox(path: &Path, flags: usize) -> syscall::Result<usize> {
match path.to_str() {
Some(string) => syscall::open(string, flags),
None => Err(syscall::Error::new(syscall::EINVAL)),
}
}
fn set_file_times_redox(fd: usize, atime: FileTime, mtime: FileTime) -> io::Result<()> {
use syscall::TimeSpec;
fn to_timespec(ft: &FileTime) -> TimeSpec {
TimeSpec {
tv_sec: ft.seconds(),
tv_nsec: ft.nanoseconds() as i32,
}
}
let times = [to_timespec(&atime), to_timespec(&mtime)];
match syscall::futimens(fd, &times) {
Ok(_) => Ok(()),
Err(err) => Err(io::Error::from_raw_os_error(err.errno)),
}
}
pub fn from_last_modification_time(meta: &fs::Metadata) -> FileTime {
FileTime {
seconds: meta.mtime(),
nanos: meta.mtime_nsec() as u32,
}
}
pub fn from_last_access_time(meta: &fs::Metadata) -> FileTime {
FileTime {
seconds: meta.atime(),
nanos: meta.atime_nsec() as u32,
}
}
pub fn from_creation_time(_meta: &fs::Metadata) -> Option<FileTime> {
None
}

63
third-party/vendor/filetime/src/unix/android.rs vendored Normal file
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use crate::FileTime;
use std::ffi::CString;
use std::fs::File;
use std::io;
use std::os::unix::prelude::*;
use std::path::Path;
pub fn set_file_times(p: &Path, atime: FileTime, mtime: FileTime) -> io::Result<()> {
set_times(p, Some(atime), Some(mtime), false)
}
pub fn set_file_mtime(p: &Path, mtime: FileTime) -> io::Result<()> {
set_times(p, None, Some(mtime), false)
}
pub fn set_file_atime(p: &Path, atime: FileTime) -> io::Result<()> {
set_times(p, Some(atime), None, false)
}
pub fn set_file_handle_times(
f: &File,
atime: Option<FileTime>,
mtime: Option<FileTime>,
) -> io::Result<()> {
let times = [super::to_timespec(&atime), super::to_timespec(&mtime)];
// On Android NDK before version 19, `futimens` is not available.
//
// For better compatibility, we reimplement `futimens` using `utimensat`,
// the same way as bionic libc uses it to implement `futimens`.
let rc = unsafe { libc::utimensat(f.as_raw_fd(), core::ptr::null(), times.as_ptr(), 0) };
if rc == 0 {
Ok(())
} else {
Err(io::Error::last_os_error())
}
}
pub fn set_symlink_file_times(p: &Path, atime: FileTime, mtime: FileTime) -> io::Result<()> {
set_times(p, Some(atime), Some(mtime), true)
}
fn set_times(
p: &Path,
atime: Option<FileTime>,
mtime: Option<FileTime>,
symlink: bool,
) -> io::Result<()> {
let flags = if symlink {
libc::AT_SYMLINK_NOFOLLOW
} else {
0
};
let p = CString::new(p.as_os_str().as_bytes())?;
let times = [super::to_timespec(&atime), super::to_timespec(&mtime)];
let rc = unsafe { libc::utimensat(libc::AT_FDCWD, p.as_ptr(), times.as_ptr(), flags) };
if rc == 0 {
Ok(())
} else {
Err(io::Error::last_os_error())
}
}

117
third-party/vendor/filetime/src/unix/linux.rs vendored Normal file
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//! On Linux we try to use the more accurate `utimensat` syscall but this isn't
//! always available so we also fall back to `utimes` if we couldn't find
//! `utimensat` at runtime.
use crate::FileTime;
use std::ffi::CString;
use std::fs;
use std::io;
use std::os::unix::prelude::*;
use std::path::Path;
use std::ptr;
use std::sync::atomic::AtomicBool;
use std::sync::atomic::Ordering::SeqCst;
pub fn set_file_times(p: &Path, atime: FileTime, mtime: FileTime) -> io::Result<()> {
set_times(p, Some(atime), Some(mtime), false)
}
pub fn set_file_mtime(p: &Path, mtime: FileTime) -> io::Result<()> {
set_times(p, None, Some(mtime), false)
}
pub fn set_file_atime(p: &Path, atime: FileTime) -> io::Result<()> {
set_times(p, Some(atime), None, false)
}
pub fn set_file_handle_times(
f: &fs::File,
atime: Option<FileTime>,
mtime: Option<FileTime>,
) -> io::Result<()> {
// Attempt to use the `utimensat` syscall, but if it's not supported by the
// current kernel then fall back to an older syscall.
static INVALID: AtomicBool = AtomicBool::new(false);
if !INVALID.load(SeqCst) {
let times = [super::to_timespec(&atime), super::to_timespec(&mtime)];
// We normally use a syscall because the `utimensat` function is documented
// as not accepting a file descriptor in the first argument (even though, on
// Linux, the syscall itself can accept a file descriptor there).
#[cfg(not(target_env = "musl"))]
let rc = unsafe {
libc::syscall(
libc::SYS_utimensat,
f.as_raw_fd(),
ptr::null::<libc::c_char>(),
times.as_ptr(),
0,
)
};
// However, on musl, we call the musl libc function instead. This is because
// on newer musl versions starting with musl 1.2, `timespec` is always a 64-bit
// value even on 32-bit targets. As a result, musl internally converts their
// `timespec` values to the correct ABI before invoking the syscall. Since we
// use `timespec` from the libc crate, it matches musl's definition and not
// the Linux kernel's version (for some platforms) so we must use musl's
// `utimensat` function to properly convert the value. musl's `utimensat`
// function allows file descriptors in the path argument so this is fine.
#[cfg(target_env = "musl")]
let rc = unsafe {
libc::utimensat(
f.as_raw_fd(),
ptr::null::<libc::c_char>(),
times.as_ptr(),
0,
)
};
if rc == 0 {
return Ok(());
}
let err = io::Error::last_os_error();
if err.raw_os_error() == Some(libc::ENOSYS) {
INVALID.store(true, SeqCst);
} else {
return Err(err);
}
}
super::utimes::set_file_handle_times(f, atime, mtime)
}
pub fn set_symlink_file_times(p: &Path, atime: FileTime, mtime: FileTime) -> io::Result<()> {
set_times(p, Some(atime), Some(mtime), true)
}
fn set_times(
p: &Path,
atime: Option<FileTime>,
mtime: Option<FileTime>,
symlink: bool,
) -> io::Result<()> {
let flags = if symlink {
libc::AT_SYMLINK_NOFOLLOW
} else {
0
};
// Same as the `if` statement above.
static INVALID: AtomicBool = AtomicBool::new(false);
if !INVALID.load(SeqCst) {
let p = CString::new(p.as_os_str().as_bytes())?;
let times = [super::to_timespec(&atime), super::to_timespec(&mtime)];
let rc = unsafe { libc::utimensat(libc::AT_FDCWD, p.as_ptr(), times.as_ptr(), flags) };
if rc == 0 {
return Ok(());
}
let err = io::Error::last_os_error();
if err.raw_os_error() == Some(libc::ENOSYS) {
INVALID.store(true, SeqCst);
} else {
return Err(err);
}
}
super::utimes::set_times(p, atime, mtime, symlink)
}

108
third-party/vendor/filetime/src/unix/macos.rs vendored Normal file
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//! Beginning with macOS 10.13, `utimensat` is supported by the OS, so here, we check if the symbol exists
//! and if not, we fallback to `utimes`.
use crate::FileTime;
use libc::{c_char, c_int, timespec};
use std::ffi::{CStr, CString};
use std::fs::File;
use std::os::unix::prelude::*;
use std::path::Path;
use std::sync::atomic::AtomicUsize;
use std::sync::atomic::Ordering::SeqCst;
use std::{io, mem};
pub fn set_file_times(p: &Path, atime: FileTime, mtime: FileTime) -> io::Result<()> {
set_times(p, Some(atime), Some(mtime), false)
}
pub fn set_file_mtime(p: &Path, mtime: FileTime) -> io::Result<()> {
set_times(p, None, Some(mtime), false)
}
pub fn set_file_atime(p: &Path, atime: FileTime) -> io::Result<()> {
set_times(p, Some(atime), None, false)
}
pub fn set_file_handle_times(
f: &File,
atime: Option<FileTime>,
mtime: Option<FileTime>,
) -> io::Result<()> {
// Attempt to use the `futimens` syscall, but if it's not supported by the
// current kernel then fall back to an older syscall.
if let Some(func) = futimens() {
let times = [super::to_timespec(&atime), super::to_timespec(&mtime)];
let rc = unsafe { func(f.as_raw_fd(), times.as_ptr()) };
if rc == 0 {
return Ok(());
} else {
return Err(io::Error::last_os_error());
}
}
super::utimes::set_file_handle_times(f, atime, mtime)
}
pub fn set_symlink_file_times(p: &Path, atime: FileTime, mtime: FileTime) -> io::Result<()> {
set_times(p, Some(atime), Some(mtime), true)
}
fn set_times(
p: &Path,
atime: Option<FileTime>,
mtime: Option<FileTime>,
symlink: bool,
) -> io::Result<()> {
// Attempt to use the `utimensat` syscall, but if it's not supported by the
// current kernel then fall back to an older syscall.
if let Some(func) = utimensat() {
let flags = if symlink {
libc::AT_SYMLINK_NOFOLLOW
} else {
0
};
let p = CString::new(p.as_os_str().as_bytes())?;
let times = [super::to_timespec(&atime), super::to_timespec(&mtime)];
let rc = unsafe { func(libc::AT_FDCWD, p.as_ptr(), times.as_ptr(), flags) };
if rc == 0 {
return Ok(());
} else {
return Err(io::Error::last_os_error());
}
}
super::utimes::set_times(p, atime, mtime, symlink)
}
fn utimensat() -> Option<unsafe extern "C" fn(c_int, *const c_char, *const timespec, c_int) -> c_int>
{
static ADDR: AtomicUsize = AtomicUsize::new(0);
unsafe {
fetch(&ADDR, CStr::from_bytes_with_nul_unchecked(b"utimensat\0"))
.map(|sym| mem::transmute(sym))
}
}
fn futimens() -> Option<unsafe extern "C" fn(c_int, *const timespec) -> c_int> {
static ADDR: AtomicUsize = AtomicUsize::new(0);
unsafe {
fetch(&ADDR, CStr::from_bytes_with_nul_unchecked(b"futimens\0"))
.map(|sym| mem::transmute(sym))
}
}
fn fetch(cache: &AtomicUsize, name: &CStr) -> Option<usize> {
match cache.load(SeqCst) {
0 => {}
1 => return None,
n => return Some(n),
}
let sym = unsafe { libc::dlsym(libc::RTLD_DEFAULT, name.as_ptr() as *const _) };
let (val, ret) = if sym.is_null() {
(1, None)
} else {
(sym as usize, Some(sym as usize))
};
cache.store(val, SeqCst);
return ret;
}

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use crate::FileTime;
use libc::{time_t, timespec};
use std::fs;
use std::os::unix::prelude::*;
cfg_if::cfg_if! {
if #[cfg(target_os = "linux")] {
mod utimes;
mod linux;
pub use self::linux::*;
} else if #[cfg(target_os = "android")] {
mod android;
pub use self::android::*;
} else if #[cfg(target_os = "macos")] {
mod utimes;
mod macos;
pub use self::macos::*;
} else if #[cfg(any(target_os = "aix",
target_os = "solaris",
target_os = "illumos",
target_os = "emscripten",
target_os = "freebsd",
target_os = "netbsd",
target_os = "openbsd",
target_os = "haiku"))] {
mod utimensat;
pub use self::utimensat::*;
} else {
mod utimes;
pub use self::utimes::*;
}
}
#[allow(dead_code)]
fn to_timespec(ft: &Option<FileTime>) -> timespec {
cfg_if::cfg_if! {
if #[cfg(any(target_os = "macos",
target_os = "illumos",
target_os = "freebsd"))] {
// https://github.com/apple/darwin-xnu/blob/a449c6a3b8014d9406c2ddbdc81795da24aa7443/bsd/sys/stat.h#L541
// https://github.com/illumos/illumos-gate/blob/master/usr/src/boot/sys/sys/stat.h#L312
// https://svnweb.freebsd.org/base/head/sys/sys/stat.h?view=markup#l359
const UTIME_OMIT: i64 = -2;
} else if #[cfg(target_os = "openbsd")] {
// https://github.com/openbsd/src/blob/master/sys/sys/stat.h#L189
const UTIME_OMIT: i64 = -1;
} else if #[cfg(target_os = "haiku")] {
// https://git.haiku-os.org/haiku/tree/headers/posix/sys/stat.h?#n106
const UTIME_OMIT: i64 = 1000000001;
} else if #[cfg(target_os = "aix")] {
// AIX hasn't disclosed system header files yet.
// https://github.com/golang/go/blob/master/src/cmd/vendor/golang.org/x/sys/unix/zerrors_aix_ppc64.go#L1007
const UTIME_OMIT: i64 = -3;
} else {
// http://cvsweb.netbsd.org/bsdweb.cgi/src/sys/sys/stat.h?annotate=1.68.30.1
// https://github.com/emscripten-core/emscripten/blob/master/system/include/libc/sys/stat.h#L71
const UTIME_OMIT: i64 = 1_073_741_822;
}
}
let mut ts: timespec = unsafe { std::mem::zeroed() };
if let &Some(ft) = ft {
ts.tv_sec = ft.seconds() as time_t;
ts.tv_nsec = ft.nanoseconds() as _;
} else {
ts.tv_sec = 0;
ts.tv_nsec = UTIME_OMIT as _;
}
ts
}
pub fn from_last_modification_time(meta: &fs::Metadata) -> FileTime {
FileTime {
seconds: meta.mtime(),
nanos: meta.mtime_nsec() as u32,
}
}
pub fn from_last_access_time(meta: &fs::Metadata) -> FileTime {
FileTime {
seconds: meta.atime(),
nanos: meta.atime_nsec() as u32,
}
}
pub fn from_creation_time(meta: &fs::Metadata) -> Option<FileTime> {
#[cfg(target_os = "bitrig")]
{
use std::os::bitrig::fs::MetadataExt;
Some(FileTime {
seconds: meta.st_birthtime(),
nanos: meta.st_birthtime_nsec() as u32,
})
}
#[cfg(not(target_os = "bitrig"))]
{
meta.created().map(|i| i.into()).ok()
}
}

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use crate::FileTime;
use std::ffi::CString;
use std::fs::File;
use std::io;
use std::os::unix::prelude::*;
use std::path::Path;
pub fn set_file_times(p: &Path, atime: FileTime, mtime: FileTime) -> io::Result<()> {
set_times(p, Some(atime), Some(mtime), false)
}
pub fn set_file_mtime(p: &Path, mtime: FileTime) -> io::Result<()> {
set_times(p, None, Some(mtime), false)
}
pub fn set_file_atime(p: &Path, atime: FileTime) -> io::Result<()> {
set_times(p, Some(atime), None, false)
}
pub fn set_file_handle_times(
f: &File,
atime: Option<FileTime>,
mtime: Option<FileTime>,
) -> io::Result<()> {
let times = [super::to_timespec(&atime), super::to_timespec(&mtime)];
let rc = unsafe { libc::futimens(f.as_raw_fd(), times.as_ptr()) };
if rc == 0 {
Ok(())
} else {
Err(io::Error::last_os_error())
}
}
pub fn set_symlink_file_times(p: &Path, atime: FileTime, mtime: FileTime) -> io::Result<()> {
set_times(p, Some(atime), Some(mtime), true)
}
fn set_times(
p: &Path,
atime: Option<FileTime>,
mtime: Option<FileTime>,
symlink: bool,
) -> io::Result<()> {
let flags = if symlink {
if cfg!(target_os = "emscripten") {
return Err(io::Error::new(
io::ErrorKind::Other,
"emscripten does not support utimensat for symlinks",
));
}
libc::AT_SYMLINK_NOFOLLOW
} else {
0
};
let p = CString::new(p.as_os_str().as_bytes())?;
let times = [super::to_timespec(&atime), super::to_timespec(&mtime)];
let rc = unsafe { libc::utimensat(libc::AT_FDCWD, p.as_ptr(), times.as_ptr(), flags) };
if rc == 0 {
Ok(())
} else {
Err(io::Error::last_os_error())
}
}

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use crate::FileTime;
use std::ffi::CString;
use std::fs;
use std::io;
use std::os::unix::prelude::*;
use std::path::Path;
#[allow(dead_code)]
pub fn set_file_times(p: &Path, atime: FileTime, mtime: FileTime) -> io::Result<()> {
set_times(p, Some(atime), Some(mtime), false)
}
#[allow(dead_code)]
pub fn set_file_mtime(p: &Path, mtime: FileTime) -> io::Result<()> {
set_times(p, None, Some(mtime), false)
}
#[allow(dead_code)]
pub fn set_file_atime(p: &Path, atime: FileTime) -> io::Result<()> {
set_times(p, Some(atime), None, false)
}
#[cfg(not(target_env = "uclibc"))]
#[allow(dead_code)]
pub fn set_file_handle_times(
f: &fs::File,
atime: Option<FileTime>,
mtime: Option<FileTime>,
) -> io::Result<()> {
let (atime, mtime) = match get_times(atime, mtime, || f.metadata())? {
Some(pair) => pair,
None => return Ok(()),
};
let times = [to_timeval(&atime), to_timeval(&mtime)];
let rc = unsafe { libc::futimes(f.as_raw_fd(), times.as_ptr()) };
return if rc == 0 {
Ok(())
} else {
Err(io::Error::last_os_error())
};
}
#[cfg(target_env = "uclibc")]
#[allow(dead_code)]
pub fn set_file_handle_times(
f: &fs::File,
atime: Option<FileTime>,
mtime: Option<FileTime>,
) -> io::Result<()> {
let (atime, mtime) = match get_times(atime, mtime, || f.metadata())? {
Some(pair) => pair,
None => return Ok(()),
};
let times = [to_timespec(&atime), to_timespec(&mtime)];
let rc = unsafe { libc::futimens(f.as_raw_fd(), times.as_ptr()) };
return if rc == 0 {
Ok(())
} else {
Err(io::Error::last_os_error())
};
}
fn get_times(
atime: Option<FileTime>,
mtime: Option<FileTime>,
current: impl FnOnce() -> io::Result<fs::Metadata>,
) -> io::Result<Option<(FileTime, FileTime)>> {
let pair = match (atime, mtime) {
(Some(a), Some(b)) => (a, b),
(None, None) => return Ok(None),
(Some(a), None) => {
let meta = current()?;
(a, FileTime::from_last_modification_time(&meta))
}
(None, Some(b)) => {
let meta = current()?;
(FileTime::from_last_access_time(&meta), b)
}
};
Ok(Some(pair))
}
#[allow(dead_code)]
pub fn set_symlink_file_times(p: &Path, atime: FileTime, mtime: FileTime) -> io::Result<()> {
set_times(p, Some(atime), Some(mtime), true)
}
pub fn set_times(
p: &Path,
atime: Option<FileTime>,
mtime: Option<FileTime>,
symlink: bool,
) -> io::Result<()> {
let (atime, mtime) = match get_times(atime, mtime, || p.metadata())? {
Some(pair) => pair,
None => return Ok(()),
};
let p = CString::new(p.as_os_str().as_bytes())?;
let times = [to_timeval(&atime), to_timeval(&mtime)];
let rc = unsafe {
if symlink {
libc::lutimes(p.as_ptr(), times.as_ptr())
} else {
libc::utimes(p.as_ptr(), times.as_ptr())
}
};
return if rc == 0 {
Ok(())
} else {
Err(io::Error::last_os_error())
};
}
fn to_timeval(ft: &FileTime) -> libc::timeval {
libc::timeval {
tv_sec: ft.seconds() as libc::time_t,
tv_usec: (ft.nanoseconds() / 1000) as libc::suseconds_t,
}
}
#[cfg(target_env = "uclibc")]
fn to_timespec(ft: &FileTime) -> libc::timespec {
libc::timespec {
tv_sec: ft.seconds() as libc::time_t,
#[cfg(all(target_arch = "x86_64", target_pointer_width = "32"))]
tv_nsec: (ft.nanoseconds()) as i64,
#[cfg(not(all(target_arch = "x86_64", target_pointer_width = "32")))]
tv_nsec: (ft.nanoseconds()) as libc::c_long,
}
}

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use crate::FileTime;
use std::fs::{self, File};
use std::io;
use std::path::Path;
pub fn set_file_times(_p: &Path, _atime: FileTime, _mtime: FileTime) -> io::Result<()> {
Err(io::Error::new(io::ErrorKind::Other, "Wasm not implemented"))
}
pub fn set_symlink_file_times(_p: &Path, _atime: FileTime, _mtime: FileTime) -> io::Result<()> {
Err(io::Error::new(io::ErrorKind::Other, "Wasm not implemented"))
}
pub fn set_file_mtime(_p: &Path, _mtime: FileTime) -> io::Result<()> {
Err(io::Error::new(io::ErrorKind::Other, "Wasm not implemented"))
}
pub fn set_file_atime(_p: &Path, _atime: FileTime) -> io::Result<()> {
Err(io::Error::new(io::ErrorKind::Other, "Wasm not implemented"))
}
pub fn from_last_modification_time(_meta: &fs::Metadata) -> FileTime {
unimplemented!()
}
pub fn from_last_access_time(_meta: &fs::Metadata) -> FileTime {
unimplemented!()
}
pub fn from_creation_time(_meta: &fs::Metadata) -> Option<FileTime> {
unimplemented!()
}
pub fn set_file_handle_times(
_f: &File,
_atime: Option<FileTime>,
_mtime: Option<FileTime>,
) -> io::Result<()> {
Err(io::Error::new(io::ErrorKind::Other, "Wasm not implemented"))
}

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use crate::FileTime;
use std::fs::{self, File, OpenOptions};
use std::io;
use std::os::windows::prelude::*;
use std::path::Path;
use std::ptr;
use windows_sys::Win32::Foundation::{FILETIME, HANDLE};
use windows_sys::Win32::Storage::FileSystem::*;
pub fn set_file_times(p: &Path, atime: FileTime, mtime: FileTime) -> io::Result<()> {
let f = OpenOptions::new()
.write(true)
.custom_flags(FILE_FLAG_BACKUP_SEMANTICS)
.open(p)?;
set_file_handle_times(&f, Some(atime), Some(mtime))
}
pub fn set_file_mtime(p: &Path, mtime: FileTime) -> io::Result<()> {
let f = OpenOptions::new()
.write(true)
.custom_flags(FILE_FLAG_BACKUP_SEMANTICS)
.open(p)?;
set_file_handle_times(&f, None, Some(mtime))
}
pub fn set_file_atime(p: &Path, atime: FileTime) -> io::Result<()> {
let f = OpenOptions::new()
.write(true)
.custom_flags(FILE_FLAG_BACKUP_SEMANTICS)
.open(p)?;
set_file_handle_times(&f, Some(atime), None)
}
pub fn set_file_handle_times(
f: &File,
atime: Option<FileTime>,
mtime: Option<FileTime>,
) -> io::Result<()> {
let atime = atime.map(to_filetime);
let mtime = mtime.map(to_filetime);
return unsafe {
let ret = SetFileTime(
f.as_raw_handle() as HANDLE,
ptr::null(),
atime
.as_ref()
.map(|p| p as *const FILETIME)
.unwrap_or(ptr::null()),
mtime
.as_ref()
.map(|p| p as *const FILETIME)
.unwrap_or(ptr::null()),
);
if ret != 0 {
Ok(())
} else {
Err(io::Error::last_os_error())
}
};
fn to_filetime(ft: FileTime) -> FILETIME {
let intervals = ft.seconds() * (1_000_000_000 / 100) + ((ft.nanoseconds() as i64) / 100);
FILETIME {
dwLowDateTime: intervals as u32,
dwHighDateTime: (intervals >> 32) as u32,
}
}
}
pub fn set_symlink_file_times(p: &Path, atime: FileTime, mtime: FileTime) -> io::Result<()> {
use std::os::windows::fs::OpenOptionsExt;
let f = OpenOptions::new()
.write(true)
.custom_flags(FILE_FLAG_OPEN_REPARSE_POINT | FILE_FLAG_BACKUP_SEMANTICS)
.open(p)?;
set_file_handle_times(&f, Some(atime), Some(mtime))
}
pub fn from_last_modification_time(meta: &fs::Metadata) -> FileTime {
from_intervals(meta.last_write_time())
}
pub fn from_last_access_time(meta: &fs::Metadata) -> FileTime {
from_intervals(meta.last_access_time())
}
pub fn from_creation_time(meta: &fs::Metadata) -> Option<FileTime> {
Some(from_intervals(meta.creation_time()))
}
fn from_intervals(ticks: u64) -> FileTime {
// Windows write times are in 100ns intervals, so do a little math to
// get it into the right representation.
FileTime {
seconds: (ticks / (1_000_000_000 / 100)) as i64,
nanos: ((ticks % (1_000_000_000 / 100)) * 100) as u32,
}
}