[chef] How to `knife search` for empty attribute

[Anton Koldaev < >]

I have the following roles:

roles/base1.json

...

  "pkgs": {

     "somepkg": {}

    }

roles/base2.json

...

  "pkgs": {

     "somepkg": {"version": "1"}

    }

How can I use knife search to find base1 and base2 knowing there's "somepkg" attribute that can be empty and can be not?

I've already tried:

* knife role search 'somepkg:*' # returns only base2

* knife role search -q '-somepkg:*' # returns all roles

* knife role search 'NOT somepkg:*' # returns all nodes

* knife role search '-somepkg:["" TO *]' # no results

* knife role search '-somepkg:[* TO *]' # no results

I'm using the latest version of chef server and client.

--

Best regards,
Koldaev Anton