Distro build scripts

I won't hijack Pauline's thread but I'm interested in distro build scripts, specifically in my case for Debian. May I enquire as advertised ? :-)

I can't see much in git apart from the debianrules scripts but they seem to generate something almost but not quite entirely unlike[*] the debian/ directory in a sample nightly source package I just downloaded.

It strikes me that it would be worth keeping the distro build scripts in git too, perhaps in a different part of the tree, if they aren't already ? All pointers welcome !

[*] I exaggerate for comic effect. It *is* entirely unlike debian/*

Nick