Bug#888507: live-build: option to build against a distribution which is not the one enabled in the final image

[Raphaël Hertzog <hertzog@debian.org>]

Package: live-build
Version: 1:20171207
Severity: wishlist
User: devel@kali.org
Usertags: origin-kali

Much like we have --mirror-chroot and --mirror-binary, it would be nice to
have --distribution-chroot and --distribution-binary so that we can build
against a specific repository but have the final sources.list point to
another repository.

My specific need is that the end-user repository is a rolling distribution
(kali-rolling) and I want to build against a specific snapshot of the
distribution (which has been tested/validated). I don't want the snapshot
distribution to be listed in the final /etc/apt/sources.list (nor used by
the installer) but I want it to be used for the whole build.

Cheers,
 Raphaël.