Simple key=value facts similar to how puppet uses facts.d

gistfile1.rb

if File.exists?File.expand_path('~/.env_config')
  File.open(File.expand_path('~/.env_config'), "r") do |file|
    file.each_line do | line|
      fact = line.split('=')
      if fact.count > 1
        Facter.add(fact.first.strip) do
          setcode do
            fact.last.strip
          end
        end
      end
    end
  end
end