Windows PowerPlan management with Puppet

init.pp

class win_power_settings (
  $power_setting = 'high_performance',
){

  case $power_setting {
    'power_saver': {
      $power_setto = 'a1841308-3541-4fab-bc81-f71556f20b4a'
    }
    'high_performance': {
      $power_setto = '8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c'
    }
    'balanced': {
      $power_setto = '381b4222-f694-41f0-9685-ff5bb260df2e'
    }
    default: {
      fail( 'You have not chosen wisely; choose power_saver, high_performance, or balanced.' )
    }
  }

  if $facts['powerplan_name'] != $power_setto {
    exec { 'set_power':
      command   => "PowerCfg -SetActive ${power_setto}",
      provider  => powershell,
      logoutput => true,
      path      => $facts['path'],
    }
  }
}

powerplan.rb

Facter.add('powerplan_name') do
  confine :osfamily => 'windows'
  setcode do
    powershell = 'C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe'
    command = '(powercfg /GETACTIVESCHEME)'

    # The output of the exec looks liks:
    # Power Scheme GUID: 381b4222-f694-41f0-9685-ff5bb260df2e  (Balanced)
    #
    powerplan = Facter::Util::Resolution.exec(%Q{#{powershell} -command "#{command}"}).split(' ')
    powerplan[4].tr('()', '')
  end
end

Facter.add('powerplan_guid') do
  confine :osfamily => 'windows'
  setcode do
    powershell = 'C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe'
    command = '(powercfg /GETACTIVESCHEME)'

    # The output of the exec looks liks:
    # Power Scheme GUID: 381b4222-f694-41f0-9685-ff5bb260df2e  (Balanced)
    #
    powerplan = Facter::Util::Resolution.exec(%Q{#{powershell} -command "#{command}"}).split(' ')
    powerplan[3].to_s
  end
end