Add new scanner algorithm, can be enabled with DevNewScanner config option

utils/strings.go

@@ -52,3 +52,19 @@ func BreakUpStringSlice(mediaFileIds []string, chunkSize int) [][]string {
 	}
 	return chunks
 }
+
+func LongestCommonPrefix(list []string) string {
+	if len(list) == 0 {
+		return ""
+	}
+
+	for l := 0; l < len(list[0]); l++ {
+		c := list[0][l]
+		for i := 1; i < len(list); i++ {
+			if l >= len(list[i]) || list[i][l] != c {
+				return list[i][0:l]
+			}
+		}
+	}
+	return list[0]
+}