mirror of
https://github.com/uutils/coreutils
synced 2024-11-18 02:38:18 +00:00
72 lines
2.1 KiB
Rust
72 lines
2.1 KiB
Rust
#![crate_id(name="dirname", vers="1.0.0", author="Derek Chiang")]
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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) Derek Chiang <derekchiang93@gmail.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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extern crate getopts;
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use std::os;
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use std::io::print;
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static VERSION: &'static str = "1.0.0";
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#[allow(dead_code)]
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fn main() { os::set_exit_status(uumain(os::args())); }
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pub fn uumain(args: Vec<String>) -> int {
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let program = args.get(0).clone();
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let opts = [
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getopts::optflag("z", "zero", "separate output with NUL rather than newline"),
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getopts::optflag("", "help", "display this help and exit"),
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getopts::optflag("", "version", "output version information and exit"),
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];
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let matches = match getopts::getopts(args.tail(), opts) {
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Ok(m) => m,
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Err(f) => fail!("Invalid options\n{}", f.to_err_msg())
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};
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if matches.opt_present("help") {
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println!("dirname {:s} - strip last component from file name", VERSION);
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println!("");
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println!("Usage:");
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println!(" {0:s} [OPTION] NAME...", program);
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println!("");
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print(getopts::usage("Output each NAME with its last non-slash component and trailing slashes
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removed; if NAME contains no /'s, output '.' (meaning the current
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directory).", opts).as_slice());
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return 0;
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}
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if matches.opt_present("version") {
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println!("dirname version: {:s}", VERSION);
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return 0;
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}
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let separator = match matches.opt_present("zero") {
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true => "\0",
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false => "\n"
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};
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if !matches.free.is_empty() {
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for path in matches.free.iter() {
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let p = std::path::Path::new(path.clone());
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let d = std::str::from_utf8(p.dirname());
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if d.is_some() {
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print(d.unwrap());
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}
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print(separator);
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}
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} else {
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println!("{0:s}: missing operand", program);
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println!("Try '{0:s} --help' for more information.", program);
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}
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0
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}
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