Hello.

I've started an experimental database to map files to ebuilds.
You might be interested in this, have a look at
http://gentoo.gagern.sytes.net/f2edb/

If this proved useful, it might be moved to packages.gentoo.org or
something like this.

If someone is interested in the internal details, feel free to ask. If
you have any suggestions or experience any problems, let me know.

Greetings,
 Martin von Gagern (known as MvG on freenode)