use notify::{RecommendedWatcher, RecursiveMode, Watcher};
use std::path::Path;
fn watch<P: AsRef<Path>>(path: P) -> notify::Result<()> {
let (tx, rx) = std::sync::mpsc::channel();
let mut watcher: RecommendedWatcher = Watcher::new_immediate(move |res| tx.send(res).unwrap())?;
watcher.watch(path, RecursiveMode::Recursive)?;
for res in rx {
match res {
Ok(event) => println!("changed: {:?}", event),
Err(e) => println!("watch error: {:?}", e),
}
}
Ok(())
}
fn main() {
let path = std::env::args()
.nth(1)
.expect("Argument 1 needs to be a path");
println!("watching {}", path);
if let Err(e) = watch(path) {
println!("error: {:?}", e)
}
}