fill out majority of MUS parsing

cmd/musparser/main.go

@@ -0,0 +1,52 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"os"
+
+	"github.com/jwetzell/jakaudiotools"
+	"github.com/urfave/cli/v3"
+)
+
+func main() {
+	cmd := &cli.Command{
+		Name:  "vagparser",
+		Usage: "parse VAG files",
+		Flags: []cli.Flag{
+			&cli.StringFlag{
+				Name:     "mus",
+				Value:    "",
+				Usage:    "path to JAK MUS file",
+				Required: true,
+			},
+			&cli.StringFlag{
+				Name:     "output",
+				Usage:    "directory to output parsed MUS files to (if not specified, will just print names and counts)",
+				Value:    "",
+				Required: false,
+			},
+		},
+		Action: func(ctx context.Context, cmd *cli.Command) error {
+			musPath := cmd.String("mus")
+			musData, err := os.ReadFile(musPath)
+			if err != nil {
+				return fmt.Errorf("failed to read WAD file: %w", err)
+			}
+
+			musFile, err := jakaudiotools.ParseMUS(musData)
+			if err != nil {
+				return fmt.Errorf("failed to parse MUS file: %w", err)
+			}
+
+			fmt.Printf("found MUS %+v\n", musFile)
+
+			return nil
+		},
+	}
+
+	if err := cmd.Run(context.Background(), os.Args); err != nil {
+		fmt.Printf("Error: %v\n", err)
+		os.Exit(1)
+	}
+}