client/watch_store: Refactor main loop

client/src/command/watch_store.rs

@@ -1,11 +1,11 @@
 use std::path::{Path, PathBuf};
 use std::sync::Arc;
-use std::{thread, time};
 
 use anyhow::{anyhow, Result};
 use clap::Parser;
 use indicatif::MultiProgress;
 use notify::{EventKind, RecursiveMode, Watcher};
+use tokio::sync::mpsc;
 
 use crate::api::ApiClient;
 use crate::cache::CacheRef;
@@ -83,7 +83,21 @@ pub async fn run(opts: Opts) -> Result<()> {
     )
     .into_push_session(push_session_config);
 
+    let (tx, mut rx) = mpsc::unbounded_channel();
+
     let mut watcher = notify::recommended_watcher(move |res: notify::Result<notify::Event>| {
+        tx.send(res).unwrap();
+    })?;
+
+    watcher.watch(&store_dir, RecursiveMode::NonRecursive)?;
+
+    eprintln!(
+        "👀 Pushing new store paths to \"{cache}\" on \"{server}\"",
+        cache = cache.as_str(),
+        server = server_name.as_str(),
+    );
+
+    while let Some(res) = rx.recv().await {
         match res {
             Ok(event) => {
                 // We watch the removals of lock files which signify
@@ -105,19 +119,9 @@ pub async fn run(opts: Opts) -> Result<()> {
             }
             Err(e) => eprintln!("Error during watch: {:?}", e),
         }
-    })?;
-
-    watcher.watch(&store_dir, RecursiveMode::NonRecursive)?;
-
-    eprintln!(
-        "👀 Pushing new store paths to \"{cache}\" on \"{server}\"",
-        cache = cache.as_str(),
-        server = server_name.as_str(),
-    );
-
-    loop {
-        thread::sleep(time::Duration::from_secs(60));
     }
+
+    Ok(())
 }
 
 fn strip_lock_file(p: &Path) -> Option<PathBuf> {