feat: allow to specify path to run in

main.go

@@ -21,25 +21,34 @@ func main() {
 	}
 
 	flag.BoolVar(&dryrun, "n", false, "Show what would have been done.")
-	flag.StringVar(&execCmd, "exec", "", "Run commant on matching file.")
+	flag.StringVar(&execCmd, "exec", "", "Run command on matching file.")
+	path := flag.String("path", "p", "Handle files in path.")
 	flag.Parse()
 
 	switch flag.Arg(0) {
 	case "normalize":
 		fallthrough
 	case "n":
-		filepath.Walk(".", normalize)
+		err := filepath.Walk(*path, normalize)
+		if err != nil {
+			panic(err)
+		}
 	case "removesuffix":
 		fallthrough
 	case "rs":
 		suffix := args[1]
-		filepath.Walk(".", removeSuffix(suffix))
+		err := filepath.Walk(*path, removeSuffix(suffix))
+		if err != nil {
+			panic(err)
+		}
 		removeSuffix(suffix)
-		break
 	case "unpack":
 		fallthrough
 	case "up":
-		filepath.Walk(".", unpack)
+		err := filepath.Walk(*path, unpack)
+		if err != nil {
+			panic(err)
+		}
 	default:
 		fmt.Println("Invalid action specified")
 		return