feat: add notify

__linux/notify/src/main.rs

@@ -0,0 +1,26 @@
+use std::env;
+use notify::{Watcher, RecursiveMode, RawEvent, raw_watcher};
+use std::sync::mpsc::channel;
+
+fn main() {
+    // Create a channel to receive the events.
+    let (tx, rx) = channel();
+
+    // Create a watcher object, delivering raw events.
+    // The notification back-end is selected based on the platform.
+    let mut watcher = raw_watcher(tx).unwrap();
+
+    // Add a path to be watched. All files and directories at that path and
+    // below will be monitored for changes.
+    watcher.watch(env::var("HOME").unwrap(), RecursiveMode::Recursive).unwrap();
+
+    loop {
+        match rx.recv() {
+           Ok(RawEvent{path: Some(path), op: Ok(op), cookie}) => {
+               println!("{:?} {:?} ({:?})", op, path, cookie)
+           },
+           Ok(event) => println!("broken event: {:?}", event),
+           Err(e) => println!("watch error: {:?}", e),
+        }
+    }
+}