I thought about that, and my inclination is "no", at least not in this PR. If this is meant to be portable, we may want to keep files around (maybe a config file) that is actually ignored on Chef Server. I'm somewhat impartial, but I think applying the chefignore here could be confusing to a user. I'm thinking about this command as "right-click -> compress". Applying the chefignore violates that mental model.