Skip downloading existing videos

downloader/download_downloadr.go

@@ -44,9 +44,8 @@ func DownloadR(url string) error {
 	// This works fine, now I have to figure out how to plug -m and -q into this shit below
 	downloader := ytd.Downloader{
 		OutputDir: OUTPUT_DIR,
-		Client: client,
+		Client:    client,
 	}
-	
 	videoTitle := video.Title
 	videoAuthor := video.Author
 	videoTitle = strings.ReplaceAll(videoTitle, " ", "-")
@@ -56,11 +55,20 @@ func DownloadR(url string) error {
 	videoAuthor = strings.ReplaceAll(videoAuthor, "&", "and")
 	videoAuthor = strings.ReplaceAll(videoAuthor, "?", "")
 	
+
 	videoFileRoot := filepath.Join(OUTPUT_DIR, videoAuthor)
 	err = os.MkdirAll(videoFileRoot, 0755)
 	if err != nil {
 		return fmt.Errorf("failed creating directory %s with %+v", videoFileRoot, err)
 	}
+
+	fullVideoPath := filepath.Join(OUTPUT_DIR, videoAuthor, videoTitle+".mp4")
+	_, err = os.Open(fullVideoPath)
+	if err == nil {
+		log.Printf("File %s already exists, skipping download", fullVideoPath)
+		return nil
+	}
+
 	videoFile := filepath.Join(videoAuthor, videoTitle+".mp4")
 	err = downloader.DownloadComposite(context.Background(), videoFile, video, "hd", "mp4", "")
 	if err != nil {
@@ -73,3 +81,4 @@ func DownloadR(url string) error {
 	ongoingDownloadsMutex.Unlock()
 	return nil
 }
+