Fix gitlab:import:repos Rake task moving repositories into the wrong location

If the source import directory were different from the destination directory,
GitLab would first create a blank repository and then erroneously move the
original one into a subdirectory. Adding an import type prevents this the project
from being initialized in the first place. It was accidentally removed in
1f917cbd49.

Closes #40765

changelogs/unreleased/sh-fix-import-rake-task.yml

+---
+title: Fix gitlab:import:repos Rake task moving repositories into the wrong location
+merge_request:
+author:
+type: fixed

lib/gitlab/bare_repository_import/importer.rb

@@ -55,6 +55,7 @@ module Gitlab
                                               name: project_name,
                                               path: project_name,
                                               skip_disk_validation: true,
+                                              import_type: 'gitlab_project',
                                               namespace_id: group&.id).execute
 
         if project.persisted? && mv_repo(project)

spec/lib/gitlab/bare_repository_import/importer_spec.rb

@@ -132,6 +132,20 @@ describe Gitlab::BareRepositoryImport::Importer, repository: true do
 
       expect(File).to exist(File.join(project.repository_storage_path, project.disk_path + '.git'))
     end
+
+    it 'moves an existing project to the correct path' do
+      project = create(:project, :repository)
+      original_commit_count = project.repository.commit_count
+
+      bare_repo = Gitlab::BareRepositoryImport::Repository.new(project.repository_storage_path, project.repository.path)
+      gitlab_importer = described_class.new(admin, bare_repo)
+
+      expect(gitlab_importer).to receive(:create_project).and_call_original
+
+      new_project = gitlab_importer.create_project_if_needed
+
+      expect(new_project.repository.commit_count).to eq(original_commit_count)
+    end
   end
 
   context 'with Wiki' do