refactor

main.go

@@ -1,29 +1,9 @@
 package main
 
 import (
-	"fmt"
-	"os"
+	"sub-cli/cmd"
 )
 
 func main() {
-	// parse args
-	if len(os.Args) < 2 {
-		fmt.Println(USAGE)
-		return
-	}
-	switch os.Args[1] {
-	case "sync":
-		syncLyrics(os.Args[2:])
-	case "convert":
-		convert(os.Args[2:])
-	case "fmt":
-		fmtLyrics(os.Args[2:])
-	case "version":
-		fmt.Printf("sub-cli version %s\n", VERSION)
-	case "help":
-		fmt.Println(USAGE)
-	default:
-		fmt.Println("Unknown command")
-		fmt.Println(USAGE)
-	}
+	cmd.Execute()
 }