add MUSIC_DIR env

main.go

@@ -60,6 +60,11 @@ type DownloadItem struct {
 var downloads = map[int]*DownloadItem{}
 
 func main() {
+	musicDir := os.Getenv("MUSIC_DIR")
+	if musicDir == "" {
+		musicDir = "./Music"
+	}
+
 	mClient := monochrome.NewClient(monochrome.ClientConfig{
 		ApiURL: "https://api.monochrome.tf",
 	})
@@ -167,7 +172,7 @@ func main() {
 						log.Printf("failed to download album cover: %v\n", err)
 					}
 
-					if err := os.Mkdir("./Music/"+download.Album.Title, 0777); err != nil {
+					if err := os.Mkdir(musicDir+download.Album.Title, 0777); err != nil {
 						return
 					}
 
@@ -209,7 +214,7 @@ func main() {
 								return
 							}
 
-							fPath := path.Join("./Music/", download.Album.Title, track.Item.Title+".flac")
+							fPath := path.Join(musicDir, download.Album.Title, track.Item.Title+".flac")
 							if err := os.WriteFile(fPath, data, 0644); err != nil {
 								log.Printf("failed to save track file: %v\n", err)
 								return