Prepend configuration load (vagrantfile) hook

[1405Hz]

Hey guys, 

I'm working on a plugin and what I need is to figure out how to prepend my plugin process right before configuration is loaded.

With the configuration I basically mean the Vagrantfile. The only way I found for now was using the hook prepend action "Plugin:ALL_ACTIONS".

But this seems the environment variables and either the basic functionalities like logging or message output of vagrant is not available through ENV.

Someone has a solution or has a list of hooks available? 

I think Vagrants documentation really lacks in development perspective.

Regards

Lennart