Added some comments; Cleanup code

download.go

@@ -76,11 +76,10 @@ func downloadVideo(destDir, url string, wg *sync.WaitGroup) {
 	filenameRune := []rune(y.StreamList[0]["title"])
 	shortFilename := string(filenameRune[0:20]) + "..."
 
-	//log.Println("Start downloading:", filename)
 	go func() {
 		bar := uiprogress.AddBar(100).AppendCompleted()
 
-		//Custom decorator
+		//Custom decorator (the short name in front of the bar)
 		bar.PrependFunc(func(b *uiprogress.Bar) string {
 			return shortFilename
 		})
@@ -89,16 +88,13 @@ func downloadVideo(destDir, url string, wg *sync.WaitGroup) {
 		for i < 100 {
 			i = <-y.DownloadPercent
 			bar.Set(int(i))
-			if i%10 == 0 {
-				//log.Println(i, "%", y.StreamList[0]["title"])
-			}
 		}
 	}()
+
+	//start the actual download
 	err := y.StartDownload(filename)
 	if err != nil {
 		log.Println("Failed to download", url)
 		log.Println("Message:", err.Error())
-	} else {
-		//log.Println("Finished downloading:", filename)
 	}
 }