require 'facter'
Facter.add('zpool_version') do
setcode do
if Facter::Core::Execution.which('zpool')
zpool_v = Facter::Core::Execution.exec('zpool upgrade -v')
zpool_version = zpool_v.scan(/^\s+(\d+)\s+/m).flatten.last unless zpool_v.nil?
end
end
end