use notify::{RecommendedWatcher, RecursiveMode, Watcher};
use std::path::Path;
use std::sync::mpsc::channel;
use std::time::Duration;

fn watch(path: &Path) -> notify::Result<()> {
    // Create a channel to receive the events.
    let (tx, rx) = channel();

    // Automatically select the best implementation for your platform.
    // You can also access each implementation directly e.g. INotifyWatcher.
    let mut watcher: RecommendedWatcher = Watcher::new(tx, Duration::from_secs(2))?;

    // Add a path to be watched. All files and directories at that path and
    // below will be monitored for changes.
    watcher.watch(path, RecursiveMode::NonRecursive)?;

    // This is a simple loop, but you may want to use more complex logic here,
    // for example to handle I/O.
    loop {
        match rx.recv() {
            Ok(event) => println!("{:?}", event),
            Err(e) => println!("watch error: {:?}", e),
        }
    }
}