A little smoothing out

boltprint.go

@@ -13,15 +13,24 @@ func main() {
 		fmt.Println("Usage: printbolt <Database File> [build]")
 		os.Exit(1)
 	}
-	db, err := bolt.Open(args[0], 0600, nil)
+	filename := args[0]
+
+	if len(args) > 1 && args[1] == "build" {
+		if _, err := os.Stat(filename); err == nil {
+			fmt.Printf("Cowardly refusing to overwrite file: %s\n", filename)
+			return
+		}
+	}
+
+	db, err := bolt.Open(filename, 0600, nil)
 	if err != nil {
 		fmt.Println(err)
 	}
 	defer db.Close()
 
 	if len(args) > 1 {
-		if args[1] == "gentest" {
-			//			createTestDatabase(db)
+		if args[1] == "build" {
+			createTestDatabase(db)
 		} else if args[1] == "json" {
 			jsonDatabase(db)
 		}