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https://github.com/RGBCube/uutils-coreutils
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touch: respect -h
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knight42
parent
b2ded87d39
commit
d0196b82ad
2 changed files with 97 additions and 58 deletions
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@ -10,9 +10,12 @@ path = "touch.rs"
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[dependencies]
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filetime = "*"
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getopts = "*"
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libc = "*"
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time = "*"
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uucore = { path="../uucore" }
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[dependencies.uucore]
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path = "../uucore"
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default-features = false
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features = ["libc"]
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[[bin]]
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name = "touch"
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@ -1,25 +1,24 @@
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#![crate_name = "uu_touch"]
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/*
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* This file is part of the uutils coreutils package.
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*
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* (c) Nick Platt <platt.nicholas@gmail.com>
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*
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* For the full copyright and license information, please view the LICENSE file
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* that was distributed with this source code.
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*/
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// This file is part of the uutils coreutils package.
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//
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// (c) Nick Platt <platt.nicholas@gmail.com>
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// (c) Jian Zeng <anonymousknight96 AT gmail.com>
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//
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// For the full copyright and license information, please view the LICENSE file
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// that was distributed with this source code.
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//
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extern crate getopts;
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extern crate libc;
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extern crate time;
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extern crate filetime;
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pub extern crate filetime;
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#[macro_use]
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extern crate uucore;
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use filetime::*;
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use std::fs::{self, File};
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use std::io::{Error, Write};
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use std::io::{self, Error, Write};
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use std::path::Path;
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static NAME: &'static str = "touch";
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@ -43,26 +42,65 @@ macro_rules! local_tm_to_filetime(
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})
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);
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macro_rules! to_timeval {
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($ft:expr) => (
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timeval {
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tv_sec: $ft.seconds() as time_t,
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tv_usec: ($ft.nanoseconds() / 1000) as suseconds_t,
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}
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)
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}
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#[cfg(unix)]
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fn set_symlink_times(p: &str, atime: FileTime, mtime: FileTime) -> io::Result<()> {
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use std::ffi::CString;
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use uucore::libc::{lutimes, timeval, time_t, suseconds_t};
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let times = [to_timeval!(atime), to_timeval!(mtime)];
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let p = try!(CString::new(p));
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return unsafe {
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if lutimes(p.as_ptr() as *const _, times.as_ptr()) == 0 {
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Ok(())
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} else {
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Err(io::Error::last_os_error())
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}
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};
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}
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pub fn uumain(args: Vec<String>) -> i32 {
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let mut opts = getopts::Options::new();
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opts.optflag("a", "", "change only the access time");
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opts.optflag("c", "no-create", "do not create any files");
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opts.optopt( "d", "date", "parse argument and use it instead of current time", "STRING");
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opts.optflag("h", "no-dereference", "affect each symbolic link instead of any referenced file \
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opts.optflag("a", "", "change only the access time");
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opts.optflag("c", "no-create", "do not create any files");
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opts.optopt("d",
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"date",
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"parse argument and use it instead of current time",
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"STRING");
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opts.optflag("h",
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"no-dereference",
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"affect each symbolic link instead of any referenced file \
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(only for systems that can change the timestamps of a symlink)");
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opts.optflag("m", "", "change only the modification time");
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opts.optopt( "r", "reference", "use this file's times instead of the current time", "FILE");
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opts.optopt( "t", "", "use [[CC]YY]MMDDhhmm[.ss] instead of the current time", "STAMP");
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opts.optopt( "", "time", "change only the specified time: \"access\", \"atime\", or \
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opts.optflag("m", "", "change only the modification time");
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opts.optopt("r",
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"reference",
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"use this file's times instead of the current time",
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"FILE");
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opts.optopt("t",
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"",
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"use [[CC]YY]MMDDhhmm[.ss] instead of the current time",
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"STAMP");
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opts.optopt("",
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"time",
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"change only the specified time: \"access\", \"atime\", or \
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\"use\" are equivalent to -a; \"modify\" or \"mtime\" are \
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equivalent to -m", "WORD");
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opts.optflag("h", "help", "display this help and exit");
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opts.optflag("V", "version", "output version information and exit");
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equivalent to -m",
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"WORD");
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opts.optflag("h", "help", "display this help and exit");
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opts.optflag("V", "version", "output version information and exit");
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let matches = match opts.parse(&args[1..]) {
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Ok(m) => m,
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Err(e) => panic!("Invalid options\n{}", e)
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Ok(m) => m,
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Err(e) => panic!("Invalid options\n{}", e),
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};
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if matches.opt_present("version") {
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@ -89,20 +127,20 @@ pub fn uumain(args: Vec<String>) -> i32 {
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panic!("Invalid options: cannot specify reference time from more than one source");
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}
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let (mut atime, mut mtime) =
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if matches.opt_present("reference") {
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stat(&matches.opt_str("reference").unwrap()[..], !matches.opt_present("no-dereference"))
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} else if matches.opts_present(&["date".to_owned(), "t".to_owned()]) {
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let timestamp = if matches.opt_present("date") {
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parse_date(matches.opt_str("date").unwrap().as_ref())
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} else {
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parse_timestamp(matches.opt_str("t").unwrap().as_ref())
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};
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(timestamp, timestamp)
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let (mut atime, mut mtime) = if matches.opt_present("reference") {
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stat(&matches.opt_str("reference").unwrap()[..],
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!matches.opt_present("no-dereference"))
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} else if matches.opts_present(&["date".to_owned(), "t".to_owned()]) {
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let timestamp = if matches.opt_present("date") {
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parse_date(matches.opt_str("date").unwrap().as_ref())
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} else {
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let now = local_tm_to_filetime!(time::now());
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(now, now)
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parse_timestamp(matches.opt_str("t").unwrap().as_ref())
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};
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(timestamp, timestamp)
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} else {
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let now = local_tm_to_filetime!(time::now());
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(now, now)
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};
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for filename in &matches.free {
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let path = &filename[..];
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@ -130,25 +168,26 @@ pub fn uumain(args: Vec<String>) -> i32 {
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let st = stat(path, !matches.opt_present("no-dereference"));
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let time = matches.opt_strs("time");
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if !(matches.opt_present("a") ||
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time.contains(&"access".to_owned()) ||
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time.contains(&"atime".to_owned()) ||
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time.contains(&"use".to_owned())) {
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if !(matches.opt_present("a") || time.contains(&"access".to_owned()) ||
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time.contains(&"atime".to_owned()) || time.contains(&"use".to_owned())) {
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atime = st.0;
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}
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if !(matches.opt_present("m") ||
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time.contains(&"modify".to_owned()) ||
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if !(matches.opt_present("m") || time.contains(&"modify".to_owned()) ||
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time.contains(&"mtime".to_owned())) {
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mtime = st.1;
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}
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}
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// this follows symlinks and thus does not work correctly for the -h flag
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// need to use lutimes() c function on supported platforms
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if let Err(e) = filetime::set_file_times(path, atime, mtime) {
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show_warning!("cannot touch '{}': {}", path, e);
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};
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if matches.opt_present("h") {
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if let Err(e) = set_symlink_times(path, atime, mtime) {
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show_warning!("cannot touch '{}': {}", path, e);
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}
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} else {
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if let Err(e) = filetime::set_file_times(path, atime, mtime) {
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show_warning!("cannot touch '{}': {}", path, e);
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}
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}
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}
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0
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@ -162,11 +201,8 @@ fn stat(path: &str, follow: bool) -> (FileTime, FileTime) {
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};
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match metadata {
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Ok(m) => (
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FileTime::from_last_access_time(&m),
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FileTime::from_last_modification_time(&m)
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),
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Err(_) => crash!(1, "failed to get attributes of '{}': {}", path, Error::last_os_error())
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Ok(m) => (FileTime::from_last_access_time(&m), FileTime::from_last_modification_time(&m)),
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Err(_) => crash!(1, "failed to get attributes of '{}': {}", path, Error::last_os_error()),
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}
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}
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@ -177,7 +213,7 @@ fn parse_date(str: &str) -> FileTime {
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// http://git.savannah.gnu.org/gitweb/?p=gnulib.git;a=blob_plain;f=lib/parse-datetime.y
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match time::strptime(str, "%c") {
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Ok(tm) => local_tm_to_filetime!(to_local!(tm)),
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Err(e) => panic!("Unable to parse date\n{}", e)
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Err(e) => panic!("Unable to parse date\n{}", e),
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}
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}
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@ -189,12 +225,12 @@ fn parse_timestamp(s: &str) -> FileTime {
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13 => ("%y%m%d%H%M.%S", s.to_owned()),
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10 => ("%y%m%d%H%M", s.to_owned()),
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11 => ("%Y%m%d%H%M.%S", format!("{}{}", now.tm_year + 1900, s)),
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8 => ("%Y%m%d%H%M", format!("{}{}", now.tm_year + 1900, s)),
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_ => panic!("Unknown timestamp format")
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8 => ("%Y%m%d%H%M", format!("{}{}", now.tm_year + 1900, s)),
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_ => panic!("Unknown timestamp format"),
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};
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match time::strptime(&ts, format) {
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Ok(tm) => local_tm_to_filetime!(to_local!(tm)),
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Err(e) => panic!("Unable to parse timestamp\n{}", e)
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Err(e) => panic!("Unable to parse timestamp\n{}", e),
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}
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}
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