Extract reenumerate() as an async function in reenumerate.js

packages/usb/reenumerate.js

@@ -23,8 +23,10 @@ if (enumerationModeId === undefined) {
     process.exit(1);
 }
 
-console.log(`Trying to reenumerate as ${enumerationMode}...`);
+function reenumerate(enumerationModeId, bootloaderTimeoutMs) {
-setInterval(() => {
+    return new Promise((resolve, reject) => {
+        console.log(`Trying to reenumerate as ${enumerationMode}...`);
+        const intervalId = setInterval(() => {
             pollingTimeoutMs -= pollingIntervalMs;
 
             const foundDevice = HID.devices().find(device =>
@@ -32,12 +34,16 @@ setInterval(() => {
 
             if (foundDevice) {
                 console.log(`${enumerationMode} is up`);
-        process.exit(0);
+                resolve();
+                clearInterval(intervalId);
+                return;
             }
 
             if (pollingTimeoutMs <= 0) {
                 console.log(`Couldn't reenumerate as ${enumerationMode}`);
-        process.exit(1);
+                reject();
+                clearInterval(intervalId);
+                return;
             }
 
             let device = uhk.getUhkDevice();
@@ -48,4 +54,10 @@ setInterval(() => {
                 jumped = true;
             }
 
-}, pollingIntervalMs);
+        }, pollingIntervalMs);
+    })
+};
+
+(async function() {
+    await reenumerate(enumerationModeId, bootloaderTimeoutMs);
+})();