customfact.rb

# Create a new fact named console_deployed_version
Facter.add("console_deployed_version") do
  # Run svn info on /usr/local/dwalu/app to pull the deployed version and put it into a fact. 
  setcode do
    `svn info /usr/local/dwalu/app --config-dir=/tmp/.subversion | grep Revision | sed 's/.*:.//g'`.chomp
  end
end