Asset Bundle Format or Tools

I am working on a very large project, and while asset bundles are great and I have been using them for awhile, we need some additional support with them. The most ideal thing I would like is a tool that through the command line, can be given a batch of collada files and then write them out to an asset bundle(s). We really need this to happen behind the scenes as an automated process and can’t do it through Unity itself by importing the collada files, then exporting bundles. Was curious if you guys at Unity already had something like this we could use for such a process and if not, could we get the asset bundle format so as to allow us to make a tool like this ourselves?

You can do that through command line (and only through that way!) calling the Unity Editor and a specific editor script.