Manage:Import ## Problem to solve When migrating projects from GitHub to GitLab, the pull requests are imported as merge requests, including any comments. However, any history/events are not migrated over. This means that, after the migration, the users would not be able to see who added/removed labels, milestones, assignees, etc. For some users this is a dealbreaker that would prevent them from migrating to GitLab. ## Proposed solution During project import from GitHub, for each imported merge request, check if any of the identified events exist and import them into GitLab. ## Events list | GitHub | ➡️ | GitLab | | ------ | - | ------ | |  | ➡️ |  | |  | ➡️ |  | |  | ➡️ |  | |  | ➡️ |  | |  | ➡️ |  | |  | ➡️ |  | |  | ➡️ |  | |  | ➡️ |  | |  | ➡️ |  | ## Iterations This feature will be delivered in iterations, as each event can be delivered as a separate change. That said, the following iteration plan groups related events to avoid user confusion. 1. :footprints: https://gitlab.com/gitlab-org/gitlab/-/issues/354937+ 1. :footprints: https://gitlab.com/gitlab-org/gitlab/-/issues/354938+ 1. :footprints: https://gitlab.com/gitlab-org/gitlab/-/issues/354940+ 1. :footprints: https://gitlab.com/gitlab-org/gitlab/-/issues/354941+ 1. :footprints: https://gitlab.com/gitlab-org/gitlab/-/issues/354945+ ## Technical details Per [GitHub API documentation](https://docs.github.com/en/developers/webhooks-and-events/events/github-event-types#pullrequestevent): The GitHub `event` objects of `type`:`PullRequestEvent` will have the `payload`.`action` fields set to one of these values: * `opened` * **`edited`** * **`closed`** * **`reopened`** * **`assigned`** * **`unassigned`** * **`review_requested`** * **`review_request_removed`** * **`labeled`** * **`unlabeled`** * `synchronize` (**bolded** events will be imported) ## Documentation Following documentation should be updated with the changes implemented in this issue: * [ ] :book: User doc: https://docs.gitlab.com/ee/user/project/import/github.html * [ ] :book: Developer doc: https://docs.gitlab.com/ee/development/github_importer.html