Anonymise marker titles (#3542)

pkg/sqlite/anonymise.go

@@ -51,6 +51,7 @@ func (db *Anonymiser) Anonymise(ctx context.Context) error {
 			func() error { return db.anonymiseFiles(ctx) },
 			func() error { return db.anonymiseFingerprints(ctx) },
 			func() error { return db.anonymiseScenes(ctx) },
+			func() error { return db.anonymiseMarkers(ctx) },
 			func() error { return db.anonymiseImages(ctx) },
 			func() error { return db.anonymiseGalleries(ctx) },
 			func() error { return db.anonymisePerformers(ctx) },
@@ -295,6 +296,58 @@ func (db *Anonymiser) anonymiseScenes(ctx context.Context) error {
 	return nil
 }
 
+func (db *Anonymiser) anonymiseMarkers(ctx context.Context) error {
+	logger.Infof("Anonymising scene markers")
+	table := sceneMarkerTableMgr.table
+	lastID := 0
+	total := 0
+	const logEvery = 10000
+
+	for gotSome := true; gotSome; {
+		if err := txn.WithTxn(ctx, db, func(ctx context.Context) error {
+			query := dialect.From(table).Select(
+				table.Col(idColumn),
+				table.Col("title"),
+			).Where(table.Col(idColumn).Gt(lastID)).Limit(1000)
+
+			gotSome = false
+
+			const single = false
+			return queryFunc(ctx, query, single, func(rows *sqlx.Rows) error {
+				var (
+					id    int
+					title string
+				)
+
+				if err := rows.Scan(
+					&id,
+					&title,
+				); err != nil {
+					return err
+				}
+
+				if err := db.anonymiseText(ctx, table, "title", title); err != nil {
+					return err
+				}
+
+				lastID = id
+				gotSome = true
+				total++
+
+				if total%logEvery == 0 {
+					logger.Infof("Anonymised %d scene markers", total)
+				}
+
+				return nil
+			})
+		}); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
 func (db *Anonymiser) anonymiseImages(ctx context.Context) error {
 	logger.Infof("Anonymising images")
 	table := imageTableMgr.table