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Diffstat (limited to 'vendor/filetime/src/lib.rs')
| -rw-r--r-- | vendor/filetime/src/lib.rs | 715 |
1 files changed, 715 insertions, 0 deletions
diff --git a/vendor/filetime/src/lib.rs b/vendor/filetime/src/lib.rs new file mode 100644 index 0000000..95ea5d4 --- /dev/null +++ b/vendor/filetime/src/lib.rs @@ -0,0 +1,715 @@ +//! 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" + ); + } +} |