coreutils/pwd/pwd.rs
2014-06-15 12:51:03 +02:00

62 lines
1.5 KiB
Rust

#![crate_id(name="pwd", vers="1.0.0", author="Heather Cynede")]
/*
* This file is part of the uutils coreutils package.
*
* (c) Derek Chiang <derekchiang93@gmail.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
#![feature(macro_rules)]
extern crate getopts;
extern crate libc;
use std::os;
use std::io::print;
#[path = "../common/util.rs"]
mod util;
static NAME: &'static str = "pwd";
static VERSION: &'static str = "1.0.0";
#[allow(dead_code)]
fn main() { os::set_exit_status(uumain(os::args())); }
pub fn uumain(args: Vec<String>) -> int {
let program = args.get(0).clone();
let opts = [
getopts::optflag("", "help", "display this help and exit"),
getopts::optflag("", "version", "output version information and exit"),
];
let matches = match getopts::getopts(args.tail(), opts) {
Ok(m) => m,
Err(f) => {
crash!(1, "Invalid options\n{}", f)
}
};
if matches.opt_present("help") {
println!("pwd {}", VERSION);
println!("");
println!("Usage:");
println!(" {0:s} [OPTION] NAME...", program);
println!("");
print(getopts::usage("Print the full filename of the current working directory.", opts).as_slice());
} else if matches.opt_present("version") {
println!("pwd version: {}", VERSION);
return 0;
} else {
let cwd = std::os::getcwd();
println!("{}", cwd.display());
return 0;
}
0
}