Always run chef install even if the lock file exists.

[coderanger]

This is required to make sure the cookbooks are cached before we run
chef export in CI or other non-workstation environments.

Also refactored things a tad.

[mwrock]

👍 on green

[coderanger]

Not going to do it in this PR, but we should probably consider having an option to run chef update as part of the kitchen run automatically, would be good for development flows I think. /cc @danielsdeleo

[danielsdeleo]

@coderanger I think what I'd like is an opt- in for the chef update where we configure it to be enabled by default in the generators. That way, most people get auto updates, but it's easier to discover why it happens and easy to turn off.

Anyway thanks for this fix.

[coderanger]

That sounds about right :) Will poke it later tonight after mayhaps.