Butler Calendar Command's Trigger, conditioned by "List X is not empty"

[Doron_Cohen]

Hi, For a project items I would like to perform this logic 5 minutes before every midnight:

If the list "Done Today" is not empty, rename it to "Current Date", and create a new list "Done Today".

I have this command at the moment:

every day at 11:55 pm, rename list "Done Today" to "{date}", and create a new list named "Done Today" in position 3

Problem is that it fires also in days when nothing was done (completed). In such a day it creates an empty list. I would like to avoid from create empty lists.

It seems a trivial task but I can't see how to create the appropriate Butler rule.
Is this possible?

Thanks

[Iain Dooley · Accepted solution]

@Doron_Cohen Yeah it looks like the ability to count cards and conditionally take action based on the result didn't make it into the powerup version of Butler, here's a Trellinator command that would do it:

https://gist.github.com/iaindooley/1f0257a436af9bab9efef1ea3ece3328

You can read more about Trellinator here:

https://community.atlassian.com/t5/Marketplace-Apps-Integrations/Introducing-Trellinator-Automate-Trello-with-Google-Apps-Script/ba-p/925271

[Doron_Cohen]

Thanks @Iain Dooley !