riotctrl.ctrl: provide abstract factory and factory for BOARD env

[miri64]

This moves the factory from RIOT-OS/RIOT#15978 to riotctrl itself.

[fjmolinas]

How will this evolve for the iotlab case? Would it be adding an ifdef based on IOTLAB_NODE being set?

[fjmolinas]

How will this evolve for the iotlab case? Would it be adding an ifdef based on IOTLAB_NODE being set?

Needs a rebase BTW.

[miri64]

How will this evolve for the iotlab case? Would it be adding an ifdef based on IOTLAB_NODE being set?

This here not really. IOTLAB_NODE would still be provided with env to get_ctrl(). But together with #13 and a factory for that, one could imagine a more sofisticated class that would make use of the collection class in #13.

[miri64]

But if you would somehow make something with IOTLAB_NODE environment variable one could imagine a new mixin class for that environment variable.

[fjmolinas]

How will this evolve for the iotlab case? Would it be adding an ifdef based on IOTLAB_NODE being set?

This here not really. IOTLAB_NODE would still be provided with env to get_ctrl(). But together with #13 and a factory for that, one could imagine a more sofisticated class that would make use of the collection class in #13.

anyway I'm jumping steps, please rebase!

[miri64]

Rebased.

[fjmolinas]

ACK!