old_contents: import json
  import re
  
  from moto.core.responses import BaseResponse
  from .models import codecommit_backends
  from .exceptions import InvalidRepositoryNameException
  
  
  class CodeCommitResponse(BaseResponse):
      @property
      def codecommit_backend(self):
          return codecommit_backends[self.region]
  
      def create_repository(self):
          if not self._is_repository_name_valid(self._get_param("repositoryName")):
              raise InvalidRepositoryNameException()
  
          repository_metadata = self.codecommit_backend.create_repository(
              self.region,
              self._get_param("repositoryName"),
              self._get_param("repositoryDescription"),
          )
  
          return json.dumps({"repositoryMetadata": repository_metadata})
  
      def get_repository(self):
          if not self._is_repository_name_valid(self._get_param("repositoryName")):
              raise InvalidRepositoryNameException()
  
          repository_metadata = self.codecommit_backend.get_repository(
              self._get_param("repositoryName")
          )
  
          return json.dumps({"repositoryMetadata": repository_metadata})
  
      def delete_repository(self):
          if not self._is_repository_name_valid(self._get_param("repositoryName")):
              raise InvalidRepositoryNameException()
  
          repository_id = self.codecommit_backend.delete_repository(
              self._get_param("repositoryName")
          )
  
          if repository_id:
              return json.dumps({"repositoryId": repository_id})
  
          return json.dumps({})
  
      def _is_repository_name_valid(self, repository_name):
          name_regex = re.compile(r"[\w\.-]+")
          result = name_regex.fullmatch(repository_name)
          return result
  
new_contents: import json
  import re
  
  from moto.core.responses import BaseResponse
  from .models import codecommit_backends
  from .exceptions import InvalidRepositoryNameException
  
  
  def _is_repository_name_valid(repository_name):
      name_regex = re.compile(r"[\w\.-]+")
      result = name_regex.split(repository_name)
      if len(result) > 0:
          for match in result:
              if len(match) > 0:
                  return False
      return True
  
  
  class CodeCommitResponse(BaseResponse):
      @property
      def codecommit_backend(self):
          return codecommit_backends[self.region]
  
      def create_repository(self):
          if not _is_repository_name_valid(self._get_param("repositoryName")):
              raise InvalidRepositoryNameException()
  
          repository_metadata = self.codecommit_backend.create_repository(
              self.region,
              self._get_param("repositoryName"),
              self._get_param("repositoryDescription"),
          )
  
          return json.dumps({"repositoryMetadata": repository_metadata})
  
      def get_repository(self):
          if not _is_repository_name_valid(self._get_param("repositoryName")):
              raise InvalidRepositoryNameException()
  
          repository_metadata = self.codecommit_backend.get_repository(
              self._get_param("repositoryName")
          )
  
          return json.dumps({"repositoryMetadata": repository_metadata})
  
      def delete_repository(self):
          if not _is_repository_name_valid(self._get_param("repositoryName")):
              raise InvalidRepositoryNameException()
  
          repository_id = self.codecommit_backend.delete_repository(
              self._get_param("repositoryName")
          )
  
          if repository_id:
              return json.dumps({"repositoryId": repository_id})
  
          return json.dumps({})
  
subject: fix repository name check