refactor(filterlists): Improve index update logging

feat(updates): Add String method

service/intel/filterlists/index.go

@@ -209,7 +209,7 @@ func updateListIndex() error {
 			)
 		default:
 			// List is in cache and current, there is nothing to do.
-			log.Debug("filterlists: index is up to date")
+			log.Debugf("filterlists: index is up to date (%s == %s)", index.Version, listIndexUpdate.Version)
 
 			// Update the unbreak filter list IDs on initial load.
 			updateUnbreakFilterListIDs()

service/intel/filterlists/updater.go

@@ -238,7 +238,7 @@ func getUpgradableFiles() ([]*updates.Artifact, error) {
 func resolveUpdateOrder(updateOrder []*updates.Artifact) ([]*updates.Artifact, error) {
 	// sort the update order by ascending version
 	sort.Sort(byAscVersion(updateOrder))
-	log.Tracef("intel/filterlists: order of updates: %v", updateOrder)
+	log.Tracef("intel/filterlists: order of potential updates: %v", updateOrder)
 
 	var cacheDBVersion *version.Version
 	if !isLoaded() {

service/updates/index.go

@@ -59,6 +59,10 @@ func (a *Artifact) SemVer() *semver.Version {
 	return a.versionNum
 }
 
+func (a *Artifact) String() string {
+	return fmt.Sprintf("%s(v%s)", a.Filename, a.Version)
+}
+
 // IsNewerThan returns whether the artifact is newer than the given artifact.
 // Returns true if the given artifact is nil.
 // The second return value "ok" is false when version could not be compared.