text: # Copyright 2021 Canonical Ltd.
  #
  # 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.
  #
  # For further info, check https://github.com/canonical/charmcraft
  
  """Infrastructure for the 'clean' command."""
  
  import logging
  
  from charmcraft.cmdbase import BaseCommand
  from charmcraft.metadata import parse_metadata_yaml
  from charmcraft.providers import get_provider
  
  logger = logging.getLogger(__name__)
  
  _overview = """
  Purge Charmcraft project's artifacts, including:
  
  - LXD Containers created for building charm(s)
  """
  
  
  class CleanCommand(BaseCommand):
      """Clean project artifacts."""
  
      name = "clean"
      help_msg = "Purge project artifacts"
      overview = _overview
      common = True
  
      def run(self, parsed_args):
          """Run the command."""
          project_path = self.config.project.dirpath
          metadata = parse_metadata_yaml(project_path)
          logger.debug("Cleaning project %r.", metadata.name)
  
          provider = get_provider()
          provider.clean_project_environments(charm_name=metadata.name, project_path=project_path)
          logger.info("Cleaned project %r.", metadata.name)
  