Another feature of Perforce I liked was view specs. If your dealing with massive repos (as for example games tend to have) you often only want some small portio

Another feature of Perforce I liked was view specs. If your dealing with massive repos (as for example games tend to have) you often only want some small portion of the entire repo. You may also want to alter the repo layout on your local machine and a client view spec can allow you to slice and dice the content in many interesting ways. This is also very useful for working with external contractors. Not only can a user specify their own view specs, there is admin control for client views that can make portions of the repo read-only or effectively invisible on a per-user basis. Perhaps this is possible with git?