Separatelly report migrated and failed projects

lib/tasks/gitlab/pages.rake

@@ -6,7 +6,8 @@ namespace :gitlab do
     task migrate_legacy_storage: :gitlab_environment do
       logger = Logger.new(STDOUT)
       logger.info('Starting to migrate legacy pages storage to zip deployments')
-      processed_projects = 0
+      projects_migrated = 0
+      projects_errored = 0
 
       ProjectPagesMetadatum.only_on_legacy_storage.each_batch(of: 10) do |batch|
         batch.preload(project: [:namespace, :route, pages_metadatum: :pages_deployment]).each do |metadatum|
@@ -16,20 +17,26 @@ namespace :gitlab do
           time = Benchmark.realtime do
             result = ::Pages::MigrateLegacyStorageToDeploymentService.new(project).execute
           end
-          processed_projects += 1
 
           if result[:status] == :success
             logger.info("project_id: #{project.id} #{project.pages_path} has been migrated in #{time} seconds")
+            projects_migrated += 1
           else
             logger.error("project_id: #{project.id} #{project.pages_path} failed to be migrated in #{time} seconds: #{result[:message]}")
+            projects_errored += 1
           end
         rescue => e
+          projects_errored += 1
           logger.error("#{e.message} project_id: #{project&.id}")
           Gitlab::ErrorTracking.track_exception(e, project_id: project&.id)
         end
 
-        logger.info("#{processed_projects} pages projects are processed")
+        logger.info("#{projects_migrated} projects are migrated successfully, #{projects_errored} projects failed to be migrated")
       end
+
+      logger.info("A total of #{projects_migrated + projects_errored} projects were processed.")
+      logger.info("- The #{projects_migrated} projects migrated successfully")
+      logger.info("- The #{projects_errored} projects failed to be migrated")
     end
   end
 end