config-package-dev is a system of CDBS modules for
creating Debian configuration packages: packages
that configure an existing Debian system by using
dpkg-divert on configuration files. These modules
attempt to make the process of creating
configuration packages efficient by checking the
md5sums of upstream configuration files that are
to be modified and by automatically generating the
relevant postinst code to perform the diversions
using the standard debhelper mechanism.
