[Gordonjcp]

Why do you want to set things conditionally like that?

This feels like it's a very incorrect solution to a problem that you're making far more complicated than it needs to be.

[kh_hk]

I apply this solution exclusively on the development environment. I have found that having the power to bail out to a shell whenever docker compose does not support something helps me iterate faster on my local dev (without affecting others).

The following is just a contrived example. Why would I do that? Because I can

    # Bring up services without a command
    #
    # usage:
    # nocmd.sh up -d service_name
    
    function _compose {
      docker-compose -f docker-compose.yml $@
    }
    
    function nocmd {
    cat << EOF
      services:
        $1:
          command: tail -f /dev/null
    EOF
    }
    
    function nocmd_compose {
      local service=${@: -1}
      _compose -f <(nocmd "$service") $@
    }
    
    nocmd_compose $@

[fio_ini]

I can punch myself in the dick but I don't