Importing playlists fails on large libraries

[daladim]

🌎 Environment

Shuttle2, built from source

💬 Description

When I import a large library (7000+ songs) into a S2 Media Provider, songs are correctly imported, but no playlist is.

🦶 Reproduction Steps

After some investigation, it turns out importSongs() successfully completes, but songRepository.getSongs() in importPlaylists() returns 0 songs.

You probably already hit this issue, because you've hard-coded a delay here.
If I understand correctly, this gives time for the SQL DB to get populated (I suppose that's because songRepository.insertUpdateAndDelete(...) is some kind of async coroutine/background task/something around those lines?) As one could expect, this is not a definitive solution, because any arbitrary delay here would be defeated by any large enough library.

I am not experienced enough, but do you think of any clean solution?
Could we make the SQL insertion synchronous? Otherwise, could we check (every 100ms for instance) if anything has been added to the DB, and proceed with importPlaylists() only when this is done?

Thanks for your insight :)

[futwick]

I have the same problem with v1.0.6 installed through Google Play.

Using Android Media Store my playlists are correctly populated but using the S2 Media Provider my playlists all show up as empty (0 songs).

(in case it's relevant, my playlists are stored in m3u format using relative file paths)

[timusus]

@daladim I reckon you're probably right. An arbitrary delay is a bit of a code smell and perhaps the insert is taking more than 500ms to complete. There is probably a more robust way to handle this, not sure what that looks like but I'll have a look when I get some time

[UltimateRiff]

I was having a similar issue (no playlists showing up), but was able to get them to show up with a library rescan

(on a Google Pixel 6, app installed from Google Play Store, m3u playlists, but I forget if they're relative paths or not. using both Android Media Store and S2 Media Provider)

[timusus]

@UltimateRiff are you using the latest alpha? Are you just confirming that it's fixed?

[UltimateRiff]

based on my experience, I feel like the issue is somewhere in the initial setup part, because I had a similar issue* until I did a manual rescan

I'm on 1.0.6, installed from the Google Play Store

*playlists not showing at all, instead of showing empty playlists

[timusus]

Closing, hoping this is fixed via #141 and released in 1.0.7

[futwick]

In 1.0.6 my playlists appeared with 0 songs.

In 1.0.7 my playlists do not appear at all (although I can see them being processed during scans).

[timusus]

@futwick can you show me what the contents of your m3u playlist looks like, and also screenshot the song info for a particular song? I'd like to compare the paths..

[futwick]

I use Clementine to make playlists and Syncthing to copy music and playlists to the SD card in my phone.

The paths are relative to the location of the playlist files (e.g. Music/Playlists/Test Playlist.m3u).

I made a new playlist with a single song. The contents of this new playlist:

#EXTM3U
#EXTINF:197,The Skids - Into the Valley
../S/The Skids/The Saints are Coming - The Best of The Skids/02 - Into the Valley.mp3

The song info for this track:

[daladim]

I had a similar issue* until I did a manual rescan

I can confirm that I'm seeing the same behaviour:

• Install version 1.0.7 from Google Play (on Android 13)
• Have 8000 songs and a bunch of .m3u files on an SD card
• Delete the S2 Media Provider (to be sure to start from an empty DB)
• Create a S2 media provider (and wait for it to complete)
• The songs are correctly imported, but no playlist is visible in the Playlists tab (except for the "Favourites")
• Trigger a Rescan (and wait for it to complete)
• The playlists are now visible, and correctly populated

[timusus]

@daladim are you on the Discord? Would be good to chat further - I thought I'd fixed this, but maybe that fix hasn't been released..