fix(cli-v3): ensure worker cleanup on SIGINT/SIGTERM (#2909)

Author: Deploy Bot

.changeset/fix-orphaned-workers-2909.md

@@ -0,0 +1,5 @@
+---
+"@trigger.dev/cli-v3": patch
+---
+
+Fix: `trigger.dev dev` command left orphaned worker processes when exited via Ctrl+C (SIGINT). Added signal handlers to ensure proper cleanup of child processes and lockfiles. (#2909)

packages/cli-v3/src/commands/dev.ts

@@ -171,22 +171,38 @@ export async function devCommand(options: DevCommandOptions) {
       );
     } else {
       logger.log(
-        `${chalkError("X Error:")} You must login first. Use the \`login\` CLI command.\n\n${
-          authorization.error
+        `${chalkError("X Error:")} You must login first. Use the \`login\` CLI command.\n\n${authorization.error
         }`
       );
     }
     process.exitCode = 1;
     return;
   }
 
-  let watcher;
+  let devInstance: Awaited<ReturnType<typeof startDev>> | undefined;
+
+  const cleanup = async () => {
+    if (devInstance) {
+      await devInstance.stop();
+    }
+  };
+
+  const signalHandler = async (signal: string) => {
+    logger.debug(`Received ${signal}, cleaning up...`);
+    await cleanup();
+    process.exit(0);
+  };
+
   try {
-    const devInstance = await startDev({ ...options, cwd: process.cwd(), login: authorization });
-    watcher = devInstance.watcher;
+    process.on("SIGINT", signalHandler);
+    process.on("SIGTERM", signalHandler);
+
+    devInstance = await startDev({ ...options, cwd: process.cwd(), login: authorization });
     await devInstance.waitUntilExit();
   } finally {
-    await watcher?.stop();
+    process.off("SIGINT", signalHandler);
+    process.off("SIGTERM", signalHandler);
+    await cleanup();
   }
 }
 
@@ -272,7 +288,7 @@ async function startDev(options: StartDevOptions) {
 
     devInstance = await bootDevSession(watcher.config);
 
-    const waitUntilExit = async () => {};
+    const waitUntilExit = async () => { };
 
     return {
       watcher,