debian-mirror-gitlab/app/services/projects/fork_service.rb

module Projects
  class ForkService < BaseService
    def execute
      new_params = {
        forked_from_project_id: @project.id,
        visibility_level:       @project.visibility_level,
        description:            @project.description,
        name:                   @project.name,
        path:                   @project.path,
        namespace_id:           @params[:namespace].try(:id) || current_user.namespace.id
      }

      if @project.avatar.present? && @project.avatar.image?
        new_params[:avatar] = @project.avatar
      end

      new_project = CreateService.new(current_user, new_params).execute

      if new_project.persisted?
        if @project.gitlab_ci?
          @project.gitlab_ci_service.fork_registration(new_project, @current_user)
        end
      end

      new_project
    end
  end
end