# Copyright 2014 Google Inc. 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.

"""The command group for cloud container images."""

from __future__ import absolute_import
from __future__ import unicode_literals
from googlecloudsdk.calliope import base


@base.ReleaseTracks(base.ReleaseTrack.ALPHA, base.ReleaseTrack.BETA,
                    base.ReleaseTrack.GA)
class Images(base.Group):
  """List and manipulate Google Container Registry images."""

  @staticmethod
  def Args(parser):
    """Add arguments to the parser.

    Args:
      parser: argparse.ArgumentParser, This is a standard argparser parser with
        which you can register arguments.  See the public argparse documentation
        for its capabilities.
    """
    pass

  def Filter(self, context, args):
    """Modify the context that will be given to this group's commands when run.

    Args:
      context: {str:object}, A set of key-value pairs that can be used for
          common initialization among commands.
      args: argparse.Namespace: The same namespace given to the corresponding
          .Run() invocation.

    Returns:
      The refined command context.
    """
    return context
