text: # -*- coding: utf-8 -*- #
  # Copyright 2016 Google LLC. All Rights Reserved.
  #
  # 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.
  """Creates a backup of a Cloud SQL instance."""
  
  from __future__ import absolute_import
  from __future__ import division
  from __future__ import unicode_literals
  
  from apitools.base.py import exceptions as apitools_exceptions
  
  from googlecloudsdk.api_lib.sql import api_util
  from googlecloudsdk.api_lib.sql import operations
  from googlecloudsdk.api_lib.sql import validate
  from googlecloudsdk.calliope import base
  from googlecloudsdk.command_lib.sql import flags
  from googlecloudsdk.command_lib.sql import instances as command_util
  from googlecloudsdk.core import log
  from googlecloudsdk.core import properties
  
  
  @base.ReleaseTracks(base.ReleaseTrack.GA, base.ReleaseTrack.BETA,
                      base.ReleaseTrack.ALPHA)
  class CreateBackup(base.CreateCommand):
    """Creates a backup of a Cloud SQL instance."""
  
    @staticmethod
    def Args(parser):
      """Args is called by calliope to gather arguments for this command.
  
      Args:
        parser: An argparse parser that you can use to add arguments that go
            on the command line after this command. Positional arguments are
            allowed.
      """
      flags.AddInstance(parser)
      parser.add_argument(
          '--description', help='A friendly description of the backup.')
      parser.add_argument(
          '--location',
          help=('Choose where to store your backup. Backups are stored in the '
                'closest multi-region location to you by default. Only '
                'customize if needed.'))
      base.ASYNC_FLAG.AddToParser(parser)
      parser.display_info.AddCacheUpdater(None)
  
    def Run(self, args):
      """Restores a backup of a Cloud SQL instance.
  
      Args:
        args: argparse.Namespace, The arguments that this command was invoked
            with.
  
      Returns:
        A dict object representing the operations resource describing the
        restoreBackup operation if the restoreBackup was successful.
      """
  
      client = api_util.SqlClient(api_util.API_VERSION_DEFAULT)
      sql_client = client.sql_client
      sql_messages = client.sql_messages
  
      validate.ValidateInstanceName(args.instance)
      instance_ref = client.resource_parser.Parse(
          args.instance,
          params={'project': properties.VALUES.core.project.GetOrFail},
          collection='sql.instances')
  
      # Check if instance has customer-managed key; show warning if so.
      try:
        instance_resource = sql_client.instances.Get(
            sql_messages.SqlInstancesGetRequest(
                project=instance_ref.project, instance=instance_ref.instance))
        if instance_resource.diskEncryptionConfiguration:
          command_util.ShowCmekWarning('backup', 'this instance')
      except apitools_exceptions.HttpError:
        # This is for informational purposes, so don't throw an error if failure.
        pass
  
      result_operation = sql_client.backupRuns.Insert(
          sql_messages.SqlBackupRunsInsertRequest(
              project=instance_ref.project,
              instance=instance_ref.instance,
              backupRun=sql_messages.BackupRun(
                  description=args.description,
                  instance=instance_ref.instance,
                  location=args.location,
                  kind='sql#backupRun')))
  
      operation_ref = client.resource_parser.Create(
          'sql.operations',
          operation=result_operation.name,
          project=instance_ref.project)
  
      if args.async_:
        return sql_client.operations.Get(
            sql_messages.SqlOperationsGetRequest(
                project=operation_ref.project, operation=operation_ref.operation))
  
      operations.OperationsV1Beta4.WaitForOperation(
          sql_client, operation_ref, 'Backing up Cloud SQL instance')
  
      log.status.write('[{instance}] backed up.\n'.format(instance=instance_ref))
  
      return None
  