LookML Validator in Local IDE

[kai_walker-1663]

Hey! I am exploring options on how I can develop in LookML locally / set-up other developers with the ability to do this so we can avoid the slow Website IDE load times and clunky feel when navigating it.

I am mostly set-up but the missing component to make this a flawless experience is having the ability to validate the LookML Code within the working branch. 

Has anyone got any ideas of how I could emulate Lookers 'Validate LookML' button in my local IDE via a script or some other method? 

I have tried using spectacles API but ran into a dead-end as I can't get it to complete a run / it takes forever. 

I simply want a solution to return any errors within the files that have been edited in my working branch OR files that have been effected by the changes.