Download a single video instead of all videos in a playlist

[deldesir]

🚀 Pull Request Overview:

This PR ensures a single video is downloaded using its relevant url from all those added to the database by lb tubeadd

📋 Checklist:

• Tested the changes on Ubuntu 24.04

🐛 Related issue(s): #114, #120

📌 Testing scenarios:

• Submit a valid playlist URL
• Observe the sequential progress polling for each download
• Observe accurate runtime (not 0s) in Runtime column
• Observe the successful downloads of all videos

cc @EMG70

[holta]

Thanks @deldesir for confirming and @chapmanjacobd for the workaround and explanations!

tubeadd and dl use playlist URLs by default. To limit to specific video URLs/metadata then you need to use --include / --search

I've updated some documentation to be more clear (I am adding a -s example for lb dl)

• lb dl downloads more than it should chapmanjacobd/library#31

Earlier/Related scripts/lb-wrapper work:

• PR scripts/lb-wrapper: Try yt-dlp with "--format best --format-sort 'tbr~1000'" [testing shows need for URL validation, clearly communicated, for users who accidentally request the impossible after clicking "Download to IIAB" > "Start"] #63
• PR Create scripts/lb-wrapper.greedy à la 'yt-dlp dl --format-sort size' [and refactor /usr/local/bin/lb-wrapper] #64
• PR Suggested improvements for scripts/lb-wrapper [refactor logging & subprocess substitution, etc] #87
• PR 3 regex's (STDERR, STDIN, Python) to parse yt-dlp download progress, for live display in "Tasks" view #93
• PR Tighten lb-wrapper: XKLB already writes version# to xklb.log #108
• PR Rename and persist xklb database #109
• PR Refactor lb-wrapper for command separation #110

[EMG70]

Test PR#124
IIAB-DIAGNOSTICS http://sprunge.us/cPanTU?en
Submit a valid playlist - URL https://www.youtube.com/playlist?list=PL0o_zxa4K1BXr49VZTEyUS5-G8fz0Pt1v ✅

Observe the sequential progress polling for each download ✅
This playlist showed as failed on first top row but sequential progress polling OK as dscribed by @deldesir .All videos downloaded despite failed state at top row.

Another test was tried with a different playlist url - https://www.youtube.com/playlist?list=PLqxP5EuGxPneuoIZWovAfOXUVlvlv3SSM,all downloaded without issues.see below.

Observe accurate runtime (not 0s) in Runtime column ✅

[EMG70]

A second attempt to download previously failed status url https://www.youtube.com/playlist?list=PL0o_zxa4K1BXr49VZTEyUS5-G8fz0Pt1v resulted in a warning about members only video ..Which I think is not correct output.

[deldesir]

I can't find the failed video among the 11 ones in the Playlist. Could it be hidden? I don't have an answer for now, but I'll keep digging. Thanks for the comprehensive feedback.

Here is the URL of the failed video for context:
https://m.youtube.com/watch?v=JufLGbcXXjY

[EMG70]

The perceived failed message was not a failure to download any part of playlist but just the displayed output at initial download instance (row 1 of first screenshot),the message comes up as failed Task progress should be within range [0,1] see first screenshot.
The url was https://www.youtube.com/playlist?list=PL0o_zxa4K1BXr49VZTEyUS5-G8fz0Pt1v