Remove bluebird dependency

Change-type: major

Author: Page-

lib/docker-delta.ts

@@ -1,12 +1,12 @@
 import path from 'node:path';
-import Bluebird from 'bluebird';
 import stream from 'node:stream';
 import { TypedError } from 'typed-error';
 import * as rsync from './rsync.js';
 import * as btrfs from './btrfs.js';
 import { spawn } from './utils.js';
 import type Dockerode from 'dockerode';
 import * as dt from 'docker-toolbelt';
+import pTimeout from 'p-timeout';
 
 const DELTA_OUT_OF_SYNC_CODES = [19, 23, 24];
 
@@ -139,16 +139,16 @@ async function applyBatch(
 	let p = stream.promises.pipeline(batch, rsyncProcess.stdin!);
 
 	if (timeout !== 0) {
-		p = Bluebird.resolve(p).timeout(timeout);
+		p = pTimeout(p, { milliseconds: timeout });
 	}
 
 	try {
 		await p;
 		log('Batch input stream ended; waiting for rsync...');
 		try {
-			await Bluebird.resolve(rsyncProcess.waitAsync()).timeout(
-				RSYNC_EXIT_TIMEOUT,
-			);
+			await pTimeout(rsyncProcess.waitAsync(), {
+				milliseconds: RSYNC_EXIT_TIMEOUT,
+			});
 			log('rsync exited cleanly');
 		} catch (err) {
 			log(`Error waiting for rsync to exit: ${err}`);

package.json

@@ -17,7 +17,6 @@
   "license": "Apache-2.0",
   "devDependencies": {
     "@balena/lint": "^9.3.12",
-    "@types/bluebird": "^3.5.42",
     "@types/dockerode": "^4.0.1",
     "@types/node": "^22.19.8",
     "chai": "^6.2.2",
@@ -30,9 +29,9 @@
     "typescript": "^5.9.3"
   },
   "dependencies": {
-    "bluebird": "^3.7.2",
     "docker-toolbelt": "^7.0.0",
     "dockerode": "^4.0.9",
+    "p-timeout": "^7.0.1",
     "tmp-promise": "^3.0.3",
     "typed-error": "^3.2.2"
   },