[ESSI-2024] add rake task to clean orphan filesets

lib/tasks/clean_orphan_filesets.rake

@@ -0,0 +1,32 @@
+desc "clean orphan filesets"
+namespace :essi do
+  task clean_orphan_filesets: :environment do
+    logger = Logger.new(Rails.root.join("log", "clean_orphan_filesets.log"))
+    logger.info "Cleaning orphan filesets"
+    date_range = "1900-01-01T01:01:01Z TO #{(Time.now - 7.days).strftime('%Y-%m-%dT%H:%M:%SZ')}"
+    orphans = FileSet.search_with_conditions("collection_branding_bsi:false AND parented_bsi:false AND system_create_dtsi:[#{date_range}]", rows: 10_000)
+    logger.info "Orphans count: #{orphans.size}"
+    orphans.each_with_index do |orphan, index|
+      logger.info "Processing id #{orphan.id}, #{index+1}/#{orphans.size}"
+      begin
+        file_set = FileSet.find(orphan.id)
+        attributes = file_set.attributes.select { |k,v| v.present? }
+        to_solr = file_set.to_solr
+        if to_solr['parented_bsi']
+          logger.info("#{file_set.id} should be parented, saving to update solr")
+          file_set.save!
+        elsif to_solr['collection_branding_bsi']
+          logger.info("#{file_set.id} should be collection branding, saving to update solr")
+          file_set.save!
+        else
+          logger.info("Confirmed orphan FileSet, destroying: #{attributes}")
+          file_set.destroy
+        end
+      rescue => error
+        logger.error "Failure processing id #{orphan.id} #{attributes if defined?(attributes)}"
+        logger.error error.inspect
+      end
+    end
+    logger.info "Completed"
+  end
+end