Creating a debian package, what do I specify in debian/rules to run a ruby script?

Question

I am building a package for Puppet facter. The installation of puppet facter is as follows:

1. make sure ruby is installed on the OS
2. run ruby install.rb

So I'd like to make a Debian package out of it. What should the contents of my debian/rules file be? The following does not work (creates a .deb that is empty):

#!/usr/bin/gmake -f
%:
    dh $@

override_dh_install:
    ruby install.rb

Answer 1

Turns out that specifying destination directory to be inside my playground solved the issue. My rules file looks like this:

#!/usr/bin/gmake -f

%:
        dh $@

override_dh_installdeb:
        echo '+++ +++ installing facter.'
        ruby install.rb --destdir=/root/projects/package-facter/facter-2.0.0rc4/debian/facter

override_dh_auto_test:
        a='a' # do nothing

Answer 2

In your debian/rules file, you have to give the install location to install.rb:

ruby install.rb --destdir=$(CURDIR)/debian/facter

Don't hardcode the fullpath path to your project directory in debian/rules. That is very brittle.