Hi, I am not going to try to take this on but somehow you would have to evaluate apt-config Dir::Etc::sourcepart. The tricky part would be making it dynamic as currently it just creates a symlink to /etc/apt/sources.list.
Good luck, Barry deFreese -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org