Skip already downloaded files

[victornpb]

What is the purpose of your issue?

• Feature request (request for a new functionality)

---

Description of your issue, suggested solution and other information

Im suggesting a new flag

--skip-downloaded-videos

I usually download an entire channel from youtube, but then once I download all the videos it's hard to keep the downloaded folder up to date, would be nice if it could like not download everything again if I ran the command again. So I could set up a script to run it on a specified schedule and it would only download new videos.

youtube-dl https://youtube.com/somechannel

The command could create a downloaded-urls.txt containing the list of all downloaded files, so it could just read this file and skip the videos on this list. Or maybe it could recursively read all the *.json files in the target folder to determine if the video is already there.

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My config file

--ignore-errors
--no-mark-watched
--geo-bypass

#playlist starts from most recent to oldest
--playlist-reverse

#save description
--write-description
#save all info
--write-info-json
#save thumbnail
--write-thumbnail

#download all subtitles
--all-subs

--no-mtime 

#Encode the video to another format if necessary
--recode-video mp4

#Embed stuff into video
--embed-thumbnail
--embed-subs
--add-metadata

-o "%(uploader)s/%(upload_date)s.%(playlist_index)s.%(uploader)s.%(title)s.%(id)s.%(ext)s" 

[dstftw]

https://github.com/rg3/youtube-dl#how-do-i-download-only-new-videos-from-a-playlist

[victornpb]

Thanks you, and sorry for not noticing this.