moros/src/usr/copy.rs

25 lines
619 B
Rust

use crate::api::fs;
use crate::api::process::ExitCode;
pub fn main(args: &[&str]) -> Result<(), ExitCode> {
if args.len() != 3 {
eprintln!("Usage: copy <source> <dest>");
return Err(ExitCode::UsageError);
}
let source = args[1];
let dest = args[2];
if let Ok(contents) = fs::read_to_bytes(source) {
if fs::write(dest, &contents).is_ok() {
Ok(())
} else {
error!("Could not write to '{}'", dest);
Err(ExitCode::Failure)
}
} else {
error!("File not found '{}'", source);
Err(ExitCode::Failure)
}
}