# frozen_string_literal: true

Facter.add(:zfs_datasets) do
  confine kernel: 'Linux'
  setcode do
    datasets = []

    if Facter::Core::Execution.which('zfs')
      begin
        output = Facter::Core::Execution.execute('zfs list -H -o name 2>/dev/null', on_fail: nil)
        datasets = output.strip.split("\n") if output && !output.empty?
      rescue StandardError => e
        Facter.debug("Error getting zfs dataset information: #{e.message}")
      end
    end

    datasets.empty? ? nil : datasets
  end
end