How to detect when --watch flag has been passed to `deno run` programatically?

I am writing a small cli script, and I have a few bits of code that do not play nicely with

deno run --watch <script>

deno run --watch <script>

. (e.g.

Deno.addSignalListener('SIGINT', graceful_shutdown)

Deno.addSignalListener('SIGINT', graceful_shutdown)

. What I want to do is only set up that listener when I am running my cli app in 'production mode'. E.g. while I am developing the cli app with

--watch

--watch

I do not want to set up shutdown listeners. Is there a way to accomplish this with the

Deno

Deno

global perhaps? My current workaround is to pass some custom flag to my cli script when I am in development, like

--mode=development

--mode=development

--no-signal

--no-signal

, but this is a bit confusing for users because this flag is only important for development.