Manipulate yum repo files in %post

[Robin Bowes]

Hi,

I'd like to manipulate yum repo files in the %post section of my 
kickstarts, specifically to disable repos that are being provided 
through local mirrors.

I've knocked together some python code that does this:

http://robinbowes.com/article.php/20081026162228424

Sample usage:

initool --file /etc/yum.repos.d/epel.repo --section epel --option enabled=0
initool --file /etc/yum.repos.d/epel.repo --section epel --del priority

My question: what's the best way to make this available to a kickstart? 
Is there anything cobbler can do, or do I need to do something like:

echo > /tmp/initool << \EOF
# script goes here
...
EOF
chmod +x /tmp/initool

R.