coreutils/pwd/pwd.rs
2013-12-05 16:44:43 +04:00

51 lines
1.4 KiB
Rust

#[link(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.
*/
extern mod extra;
use std::os;
use std::io::stderr;
use extra::getopts::groups;
static VERSION: &'static str = "1.0.0";
fn main() {
let args = os::args();
let program = args[0].clone();
let opts = ~[
groups::optflag("", "help", "display this help and exit"),
groups::optflag("", "version", "output version information and exit"),
];
let matches = match groups::getopts(args.tail(), opts) {
Ok(m) => m,
Err(f) => {
writeln!(&mut stderr() as &mut Writer,
"Invalid options\n{}", f.to_err_msg());
os::set_exit_status(1);
return
}
};
if matches.opt_present("help") {
println!("pwd {}", VERSION);
println("");
println("Usage:");
println!(" {0:s} [OPTION] NAME...", program);
println("");
print(groups::usage("Print the full filename of the current working directory.", opts));
} else if matches.opt_present("version") {
return println("pwd version: " + VERSION);
} else {
let cwd = std::os::getcwd();
println!("{}", cwd.display());
}
}