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Merge pull request #506 from Stebalien/yes-cleanup

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Cleanup `yes`
This commit is contained in:
Alex Lyon 2015-01-24 20:25:04 -08:00
parent 6c897dc76c e7f80e9826
commit 70c6fb0887
1 changed files with 10 additions and 12 deletions
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22
src/yes/yes.rs
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@ -16,6 +16,7 @@ extern crate getopts;
extern crate libc;
use std::io::print;
use std::borrow::IntoCow;
#[path = "../common/util.rs"]
#[macro_use]
@ -24,7 +25,7 @@ mod util;
static NAME: &'static str = "yes";
pub fn uumain(args: Vec<String>) -> isize {
let program = args[0].clone();
let program = &args[0];
let opts = [
getopts::optflag("h", "help", "display this help and exit"),
getopts::optflag("V", "version", "output version information and exit"),
@ -41,27 +42,24 @@ pub fn uumain(args: Vec<String>) -> isize {
println!("Usage:");
println!(" {0} [STRING]... [OPTION]...", program);
println!("");
print(getopts::usage("Repeatedly output a line with all specified STRING(s), or 'y'.", &opts).as_slice());
print(&getopts::usage("Repeatedly output a line with all specified STRING(s), or 'y'.", &opts)[]);
return 0;
}
if matches.opt_present("version") {
println!("yes 1.0.0");
return 0;
}
let mut string = "y".to_string();
if !matches.free.is_empty() {
string = matches.free.connect(" ");
}
let string = if matches.free.is_empty() {
"y".into_cow()
} else {
matches.free.connect(" ").into_cow()
};
exec(string.as_slice());
exec(&string[]);
0
}
pub fn exec(string: &str) {
loop {
if !pipe_println!("{}", string) {
break;
}
}
while pipe_println!("{}", string) { }
}