= Facter Tweaks =

== New facts testing ==
While you are writing new facts please refer to [http://docs.puppetlabs.com/guides/custom_facts.html puppetlabs documentation].  In short do something like:
{{{
$ mkdir -p ~/lib/ruby/facter ; export RUBYLIB=~/lib/ruby
$ cp /path/to/hardware_platform.rb $RUBYLIB/facter
$ facter hardware_platform
SUNW,Sun-Blade-1500
}}}

== New facts distributing == 
To distribute your new facts to puppet clients make a module (preferably the one where you are using this fact, e.g.
{{{
$ mkdir -p /etc/puppet/modules/myfirst_module/lib/facter
cp myfirstfact.rb /etc/puppet/modules/myfirst_module/lib/facter
}}}

If you are distributing facts this way you can test them on the client by setting FACTERLIB environment variable:
{{{
export FACTERLIB=/var/lib/puppet/lib/facter
facter
}}}
== videocard fact ==

This ruby snippet adds a videocard fact to facter.  You can use this fact to decide if you need to install any proprietary video card drivers.  Place in /usr/lib/ruby/site_ruby/1.8/facter/videocard.rb
{{{
#!ruby
# Josko Plazonic - lifted from Josko March 14, 2011 by Thomas Uphill
require 'facter'

Facter.add("videocard") do
	confine :kernel => :linux
	ENV["PATH"]="/bin:/sbin:/usr/bin:/usr/sbin"
	setcode do
		controllers = []
		lspciexists = system "/bin/bash -c 'which lspci >&/dev//null'"
		if $?.exitstatus == 0
			output = %x{lspci}
			output.each {|s|
				controllers.push($1) if s =~ /VGA compatible controller: (.*)/
			}
		end
		controllers
	end
end
}}}

After installing you should be able to see the fact like so:
{{{
[root@host ~]# facter |grep video
videocard => Intel Corporation 82945G/GZ Integrated Graphics Controller (rev 02)
[root@host ~]# 
}}}