old_contents: # Copyright 2015 Cloudbase Solutions Srl
  #
  #    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 os
  import re
  
  from cloudbaseinit import exception
  from cloudbaseinit.openstack.common import log as logging
  
  from oslo.config import cfg
  
  
  opts = [
      cfg.StrOpt('mtools_path', default=None,
                 help='Path to "mtools" program suite, used for interacting '
                      'with VFAT filesystems'),
  ]
  
  CONF = cfg.CONF
  CONF.register_opts(opts)
  CONFIG_DRIVE_LABEL = 'config-2'
  LOG = logging.getLogger(__name__)
  VOLUME_LABEL_REGEX = re.compile("Volume label is (.*?)$")
  
  
  def _check_mtools_path():
      if not CONF.mtools_path:
          raise exception.CloudbaseInitException(
              '"mtools_path" needs to be provided in order '
              'to access VFAT drives')
  
  
  def is_vfat_drive(osutils, drive_path):
      """Check if the given drive contains a VFAT filesystem."""
      _check_mtools_path()
      mlabel = os.path.join(CONF.mtools_path, "mlabel.exe")
      args = [mlabel, "-i", drive_path, "-s"]
  
      out, err, exit_code = osutils.execute_process(args, shell=False)
      if exit_code:
          LOG.warning("Could not retrieve label for VFAT drive path %r",
                      drive_path)
          LOG.warning("mlabel failed with error %r", err)
          return False
  
      LOG.info("Obtained label information for drive %r: %r", drive_path, out)
      out = out.decode().strip()
      match = VOLUME_LABEL_REGEX.search(out)
      return match.group(1) == CONFIG_DRIVE_LABEL
  
  
  def copy_from_vfat_drive(osutils, drive_path, target_path):
      """Copy everything from the given VFAT drive into the given target."""
      _check_mtools_path()
      cwd = os.getcwd()
      try:
          os.chdir(target_path)
  
          # A mcopy call looks like this:
          #
          # mcopy -n -i \\.\PHYSICALDRIVEx ::/file/path destination/path
          mcopy = os.path.join(CONF.mtools_path, "mcopy.exe")
          args = [mcopy, "-s", "-n", "-i", drive_path, "::/", "."]
          osutils.execute_process(args, shell=False)
      finally:
          os.chdir(cwd)
  
new_contents: # Copyright 2015 Cloudbase Solutions Srl
  #
  #    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 os
  import re
  
  from cloudbaseinit import exception
  from cloudbaseinit.openstack.common import log as logging
  
  from oslo.config import cfg
  
  
  opts = [
      cfg.StrOpt('mtools_path', default=None,
                 help='Path to "mtools" program suite, used for interacting '
                      'with VFAT filesystems'),
  ]
  
  CONF = cfg.CONF
  CONF.register_opts(opts)
  CONFIG_DRIVE_LABEL = 'config-2'
  LOG = logging.getLogger(__name__)
  VOLUME_LABEL_REGEX = re.compile("Volume label is (.*?)$")
  
  
  def _check_mtools_path():
      if not CONF.mtools_path:
          raise exception.CloudbaseInitException(
              '"mtools_path" needs to be provided in order '
              'to access VFAT drives')
  
  
  def is_vfat_drive(osutils, drive_path):
      """Check if the given drive contains a VFAT filesystem."""
      _check_mtools_path()
      mlabel = os.path.join(CONF.mtools_path, "mlabel.exe")
      args = [mlabel, "-i", drive_path, "-s"]
  
      out, err, exit_code = osutils.execute_process(args, shell=False)
      if exit_code:
          LOG.debug("Could not retrieve label for VFAT drive path %r",
                    drive_path)
          LOG.debug("mlabel failed with error %r", err)
          return False
  
      LOG.debug("Obtained label information for drive %r: %r", drive_path, out)
      out = out.decode().strip()
      match = VOLUME_LABEL_REGEX.search(out)
      return match.group(1) == CONFIG_DRIVE_LABEL
  
  
  def copy_from_vfat_drive(osutils, drive_path, target_path):
      """Copy everything from the given VFAT drive into the given target."""
      _check_mtools_path()
      cwd = os.getcwd()
      try:
          os.chdir(target_path)
  
          # A mcopy call looks like this:
          #
          # mcopy -n -i \\.\PHYSICALDRIVEx ::/file/path destination/path
          mcopy = os.path.join(CONF.mtools_path, "mcopy.exe")
          args = [mcopy, "-s", "-n", "-i", drive_path, "::/", "."]
          osutils.execute_process(args, shell=False)
      finally:
          os.chdir(cwd)
  
subject: Change VFAT logging type to debug