old_contents: #
  # Copyright (C) 2014-2015 Red Hat Inc.
  #
  # Author: Cedric Jeanneret <cjeanner@redhat.com>
  #
  # Licensed under the Apache License, Version 2.0 (the "License"); you may
  # not use this file except in compliance with the License. You may obtain
  # a copy of the License at
  #
  #      http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
  # License for the specific language governing permissions and limitations
  # under the License.
  
  '''
  '''
  import logging
  import re
  from subprocess import check_output
  
  LOG = logging.getLogger('hardware.rtc')
  
  
  def get_rtc():
      cmd = ['timedatectl', 'status', '--no-pager']
      try:
          stdout = check_output(cmd).decode("utf-8")
      except OSError:
          LOG.warning('Unable to determine RTC timezone (no timedatectl)')
          return 'unknown'
      if stdout:
          match = re.search(r'RTC in local TZ: ([a-z]+)$', stdout)
          if match:
              LOG.info('Is RTC set to UTC: %s' % match.group(1))
              return match.group(1)
          LOG.warning('Unable to determine RTC timezone (no match)')
      else:
          LOG.warning('Unable to determine RTC timezone (no output)')
      return 'unknown'
  
new_contents: #
  # Copyright (C) 2014-2015 Red Hat Inc.
  #
  # Author: Cedric Jeanneret <cjeanner@redhat.com>
  #
  # Licensed under the Apache License, Version 2.0 (the "License"); you may
  # not use this file except in compliance with the License. You may obtain
  # a copy of the License at
  #
  #      http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
  # License for the specific language governing permissions and limitations
  # under the License.
  
  '''
  '''
  import logging
  import re
  import subprocess
  
  LOG = logging.getLogger('hardware.rtc')
  
  
  def get_rtc():
      cmd = ['timedatectl', 'status', '--no-pager']
      try:
          stdout = subprocess.check_output(cmd).decode("utf-8")
      except OSError:
          LOG.warning('Unable to determine RTC timezone (no timedatectl)')
          return 'unknown'
      except subprocess.CalledProcessError as excpt:
          LOG.warning('RTC timezone command failed - %s' % excpt.output)
          return 'unknown'
      if stdout:
          match = re.search(r'RTC in local TZ: ([a-z]+)$', stdout)
          if match:
              LOG.info('Is RTC set to UTC: %s' % match.group(1))
              return match.group(1)
          LOG.warning('Unable to determine RTC timezone (no match)')
      else:
          LOG.warning('Unable to determine RTC timezone (no output)')
      return 'unknown'
  
subject: Handle check_output exception