This script is to help me keep track and download new drama episodes from Youtube playlists, in time, for my wife :-)
yt-playlists.json contains download options, playlists and most importantly, the last downloaded episode number. So that previously downloaded & watched & deleted episodes are not re-downloaded.
yt-playlist-dl.py is expected to run by cron job to check and download new episodes in the plylists if any. Luckily the dramas have EPxx in the title to help identify them. So I can use the built-in matchtitle option of youtube-dl to select an episode from playlist to download.
Install Python package:
sudo pip install --upgrade youtube_dl
Full installation details see https://rg3.github.io/youtube-dl/download.html.
You should add two cron jobs: (1) to run the downloader at set intervals; (2) to upgrade your youtube-dl package frequently to pick up new updates that match YouTube's changes on their website.
Here's mine:
# update youtube-dl package daily at 6am
0 6 * * * sudo pip install --upgrade youtube_dl
# run the downloader daily at given hours
0 2 * * * cd /path/to/dramas/ ; /path/to/yt-playlist-dl.py