nest start doesn't wait for app to exit

[WiseBird]

Is there an existing issue for this?

• I have searched the existing issues

Current behavior

CLI doesn't wait for the application to exit.
In the case of closing CLI with Ctrl-C, it results in the application still running (and logging messages) while control is returned to the terminal.

In the case of the watch command, the application is restarted before the previous instance is stopped, which results in address already in use error.

Minimum reproduction code

https://github.com/WiseBird/nestjs-shutdown

Steps to reproduce

From a code perspective, the app should have an async shutdown hook, e.g.:

The simplest steps:

1. npm start
2. Ctrl+C

could be also reproduced with start:dev command:

1. npm run start:dev
2. Make a change in the code

Expected behavior

CLI waits for the application to exit before exiting itself or restarting the app.

Package version

8.2.5

NestJS version

8.4.4

Node.js version

16.10.

In which operating systems have you tested?

• macOS
• Windows
• Linux

Other

The problem relates to #1487, not sure if it can be considered a duplicate as this one is not about http server but purely CLI issue.

[micalevisk]

duplicate of #1614