run npm install to generate a package lock

node_modules/watcher/dist/watcher_locks_resolver.js

@@ -0,0 +1,42 @@
+/* MAIN */
+// Registering a single interval scales much better than registering N timeouts
+// Timeouts are respected within the interval margin
+const WatcherLocksResolver = {
+    /* VARIABLES */
+    interval: 100,
+    intervalId: undefined,
+    fns: new Map(),
+    /* LIFECYCLE API */
+    init: () => {
+        if (WatcherLocksResolver.intervalId)
+            return;
+        WatcherLocksResolver.intervalId = setInterval(WatcherLocksResolver.resolve, WatcherLocksResolver.interval);
+    },
+    reset: () => {
+        if (!WatcherLocksResolver.intervalId)
+            return;
+        clearInterval(WatcherLocksResolver.intervalId);
+        delete WatcherLocksResolver.intervalId;
+    },
+    /* API */
+    add: (fn, timeout) => {
+        WatcherLocksResolver.fns.set(fn, Date.now() + timeout);
+        WatcherLocksResolver.init();
+    },
+    remove: (fn) => {
+        WatcherLocksResolver.fns.delete(fn);
+    },
+    resolve: () => {
+        if (!WatcherLocksResolver.fns.size)
+            return WatcherLocksResolver.reset();
+        const now = Date.now();
+        for (const [fn, timestamp] of WatcherLocksResolver.fns) {
+            if (timestamp >= now)
+                continue; // We should still wait some more for this
+            WatcherLocksResolver.remove(fn);
+            fn();
+        }
+    }
+};
+/* EXPORT */
+export default WatcherLocksResolver;