Fix pages deployment storage migration

file_type only has meaning for artifacts and pages deployment
migration was failing when printing logs

Changelog: fixed

lib/gitlab/local_and_remote_storage_migration/base_migrater.rb

@@ -8,7 +8,7 @@ module Gitlab
       end
 
       def migrate_to_remote_storage
-        logger.info('Starting transfer to remote storage')
+        logger.info('Starting transfer to object storage')
 
         migrate(items_with_files_stored_locally, ObjectStorage::Store::REMOTE)
       end
@@ -38,11 +38,11 @@ module Gitlab
       end
 
       def log_success(item, store)
-        logger.info("Transferred #{item.class.name} ID #{item.id} of type #{item.file_type} with size #{item.size} to #{storage_label(store)} storage")
+        logger.info("Transferred #{item.class.name} ID #{item.id} with size #{item.size} to #{storage_label(store)} storage")
       end
 
       def log_error(err, item)
-        logger.warn("Failed to transfer #{item.class.name} of type #{item.file_type} and ID #{item.id} with error: #{err.message}")
+        logger.warn("Failed to transfer #{item.class.name} ID #{item.id} with error: #{err.message}")
       end
 
       def storage_label(store)

spec/lib/gitlab/local_and_remote_storage_migration/artifact_migrater_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+require 'support/shared_examples/lib/gitlab/local_and_remote_storage_migration_shared_examples'
+
+RSpec.describe Gitlab::LocalAndRemoteStorageMigration::ArtifactMigrater do
+  before do
+    stub_artifacts_object_storage(enabled: true)
+  end
+
+  let!(:item) { create(:ci_job_artifact, :archive, file_store: start_store) }
+
+  it_behaves_like 'local and remote storage migration'
+end

spec/lib/gitlab/local_and_remote_storage_migration/pages_deployment_migrater_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+require 'support/shared_examples/lib/gitlab/local_and_remote_storage_migration_shared_examples'
+
+RSpec.describe Gitlab::LocalAndRemoteStorageMigration::PagesDeploymentMigrater do
+  before do
+    stub_pages_object_storage(::Pages::DeploymentUploader, enabled: true)
+  end
+
+  let!(:item) { create(:pages_deployment, file_store: start_store) }
+
+  it_behaves_like 'local and remote storage migration'
+end

spec/support/shared_examples/lib/gitlab/local_and_remote_storage_migration_shared_examples.rb

+# frozen_string_literal: true
+
+RSpec.shared_examples 'local and remote storage migration' do
+  let(:logger) { Logger.new("/dev/null") }
+  let(:migrater) { described_class.new(logger) }
+
+  using RSpec::Parameterized::TableSyntax
+
+  where(:start_store, :end_store, :method) do
+    ObjectStorage::Store::LOCAL  | ObjectStorage::Store::REMOTE | :migrate_to_remote_storage
+    ObjectStorage::Store::REMOTE | ObjectStorage::Store::REMOTE | :migrate_to_remote_storage # rubocop:disable Lint/BinaryOperatorWithIdenticalOperands
+    ObjectStorage::Store::REMOTE | ObjectStorage::Store::LOCAL  | :migrate_to_local_storage
+    ObjectStorage::Store::LOCAL  | ObjectStorage::Store::LOCAL  | :migrate_to_local_storage # rubocop:disable Lint/BinaryOperatorWithIdenticalOperands
+  end
+
+  with_them do
+    let(:storage_name) { end_store == ObjectStorage::Store::REMOTE ? 'object' : 'local' }
+
+    it 'successfully migrates' do
+      expect(logger).to receive(:info).with("Starting transfer to #{storage_name} storage")
+
+      if start_store != end_store
+        expect(logger).to receive(:info).with("Transferred #{item.class.name} ID #{item.id} with size #{item.size} to #{storage_name} storage")
+      end
+
+      expect(item.file_store).to eq(start_store)
+
+      migrater.send(method)
+
+      expect(item.reload.file_store).to eq(end_store)
+    end
+  end
+
+  context 'when migration fails' do
+    let(:start_store) { ObjectStorage::Store::LOCAL }
+
+    it 'prints error' do
+      expect_next_instance_of(item.file.class) do |file|
+        expect(file).to receive(:migrate!).and_raise("error message")
+      end
+
+      expect(logger).to receive(:info).with("Starting transfer to object storage")
+
+      expect(logger).to receive(:warn).with("Failed to transfer #{item.class.name} ID #{item.id} with error: error message")
+
+      expect(item.file_store).to eq(start_store)
+
+      migrater.migrate_to_remote_storage
+
+      expect(item.reload.file_store).to eq(start_store)
+    end
+  end
+end