Unref the still-running-dont-update-again timer

Author: pimterry

src/index.ts

@@ -241,7 +241,7 @@ export async function runHTK(options: {
                         // If we don't, we'll redownload the same update again every check.
                         // We don't want to block it completely though, in case this server
                         // stays open for a very long time.
-                        return delay(1000 * 60 * 60 * 6);
+                        return delay(1000 * 60 * 60 * 6, { unref: true });
                     }
 
                     // Report any HTTP response errors cleanly & explicitly:

src/util/promise.ts

@@ -1,5 +1,8 @@
-export function delay(durationMs: number): Promise<void> {
-    return new Promise((resolve) => setTimeout(resolve, durationMs));
+export function delay(durationMs: number, options: { unref?: boolean } = {}): Promise<void> {
+    return new Promise((resolve) => {
+        const timer = setTimeout(resolve, durationMs);
+        if (options.unref) timer.unref();
+    });
 }
 
 export async function waitUntil<T extends unknown>(