Don't download all the video parts if the final video exists

youtube_dl/YoutubeDL.py

@@ -780,6 +780,11 @@ class YoutubeDL(object):
                     elif len(parts) == 1:
                         info_dict['url'] = parts[0]
                         success = self.fd._do_download(filename, info_dict)
+                    else:
+                        # We check if the final video has already been downloaded
+                        if self.params.get('continuedl', False) and os.path.isfile(encodeFilename(filename)):
+                            self.fd.report_file_already_downloaded(filename)
+                            success = True
                         else:
                             parts_success = []
                             parts_files = []