implemented game art download

cmd/oplcli.go

@@ -13,9 +13,14 @@ type RenameCmd struct {
 	File string `arg:"positional"`
 }
 
+type ArtCmd struct {
+	File string `arg:"positional"`
+}
+
 type args struct {
 	Scan   *ScanCmd   `arg:"subcommand:scan"`
 	Rename *RenameCmd `arg:"subcommand:rename"`
+	Art    *ArtCmd    `arg:"subcommand:art"`
 }
 
 func Run() {
@@ -27,5 +32,7 @@ func Run() {
 		oplcli.Scan(args.Scan.File, oplcli.Config{})
 	case args.Rename != nil:
 		oplcli.Rename(args.Rename.File, oplcli.Config{})
+	case args.Art != nil:
+		oplcli.DownloadGameArt(args.Art.File, oplcli.Config{})
 	}
 }