old_contents: # Copyright 2019 Google LLC
  #
  # 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.
  """Handler that triggers the backup URL. We need this handler because
    https://cloud.google.com/appengine/articles/scheduled_backups doesn't support
    backing up all entities. Therefore, we have to get all entities here and
    send them to the backup URL."""
  
  import datetime
  
  from google.cloud import ndb
  import googleapiclient
  
  from base import utils
  from config import local_config
  from handlers import base_handler
  from libs import handler
  from metrics import logs
  
  # CrashStatistic is excluded because the number of records is too high and
  # can be rebuilt from BigQuery dataset.
  EXCLUDED_MODELS = {'CrashStatistic', 'CrashStatisticJobHistory'}
  
  
  def _datastore_client():
    """Return an api client for datastore."""
    return googleapiclient.discovery.build('datastore', 'v1')
  
  
  class Handler(base_handler.Handler):
    """Handler for triggering the backup URL."""
  
    @handler.cron()
    def get(self):
      """Handle a cron job."""
      backup_bucket = local_config.Config(
          local_config.PROJECT_PATH).get('backup.bucket')
      if not backup_bucket:
        logs.log('No backup bucket is set, skipping.')
        return
  
      kinds = [
          kind for kind in ndb.Model._kind_map  # pylint: disable=protected-access
          if (not kind.startswith('_') and kind not in EXCLUDED_MODELS)
      ]
  
      app_id = utils.get_application_id()
      timestamps = [
          datetime.datetime.utcnow().strftime('%Y-%m-%d-%H:%M:%S'),
          'latest',
      ]
  
      for timestamp in timestamps:
        output_url_prefix = (
            'gs://{backup_bucket}/datastore-backups/{timestamp}'.format(
                backup_bucket=backup_bucket, timestamp=timestamp))
        body = {
            'output_url_prefix': output_url_prefix,
            'entity_filter': {
                'kinds': kinds
            }
        }
  
        request = _datastore_client().projects().export(
            projectId=app_id, body=body)
        response = request.execute()
        logs.log('Datastore export succeeded.', response=response)
  
new_contents: # Copyright 2019 Google LLC
  #
  # 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.
  """Handler that triggers the backup URL. We need this handler because
    https://cloud.google.com/appengine/articles/scheduled_backups doesn't support
    backing up all entities. Therefore, we have to get all entities here and
    send them to the backup URL."""
  
  import datetime
  
  from google.cloud import ndb
  import googleapiclient
  
  from base import utils
  from config import local_config
  from handlers import base_handler
  from libs import handler
  from metrics import logs
  
  # CrashStatistic is excluded because the number of records is too high and
  # can be rebuilt from BigQuery dataset.
  EXCLUDED_MODELS = {'CrashStatistic', 'CrashStatisticJobHistory'}
  
  
  def _datastore_client():
    """Return an api client for datastore."""
    return googleapiclient.discovery.build('datastore', 'v1')
  
  
  class Handler(base_handler.Handler):
    """Handler for triggering the backup URL."""
  
    @handler.cron()
    def get(self):
      """Handle a cron job."""
      backup_bucket = local_config.Config(
          local_config.PROJECT_PATH).get('backup.bucket')
      if not backup_bucket:
        logs.log('No backup bucket is set, skipping.')
        return 'OK'
  
      kinds = [
          kind for kind in ndb.Model._kind_map  # pylint: disable=protected-access
          if (not kind.startswith('_') and kind not in EXCLUDED_MODELS)
      ]
  
      app_id = utils.get_application_id()
      timestamp = datetime.datetime.utcnow().strftime('%Y-%m-%d-%H:%M:%S')
      output_url_prefix = (
          'gs://{backup_bucket}/datastore-backups/{timestamp}'.format(
              backup_bucket=backup_bucket, timestamp=timestamp))
      body = {
          'output_url_prefix': output_url_prefix,
          'entity_filter': {
              'kinds': kinds
          }
      }
  
      try:
        request = _datastore_client().projects().export(
            projectId=app_id, body=body)
        response = request.execute()
  
        message = 'Datastore export succeeded.'
        status_code = 200
        logs.log(message, response=response)
      except googleapiclient.errors.HttpError as e:
        message = 'Datastore export failed.'
        status_code = e.resp.status
        logs.log_error(message, error=str(e))
  
      return (message, status_code, {'Content-Type': 'text/plain'})
  
subject: Revert "Export Datastore backups to a /latest/ directory as well. (#2303)" (#2309)