<!--IssueSummary start--> <details> <summary> Everyone can contribute. [Help move this issue forward](https://handbook.gitlab.com/handbook/marketing/developer-relations/contributor-success/community-contributors-workflows/#contributor-links) while earning points, leveling up and collecting rewards. </summary> - [Close this issue](https://contributors.gitlab.com/manage-issue?action=close&projectId=278964&issueIid=26183) </details> <!--IssueSummary end--> The new import service (https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/22809) extracts the common functionality so it can be shared between controllers and APIs. The majority of import controllers (`gitlab`, `bitbucket`, `bitbucket_server`) still use the `find_or_create_namespace` method in `app/controllers/import/base_controller.rb`. This method will eventually be this will be replaced by `app/services/import/base_service.rb` as the importers are updated.