beets playlist updater

This is a small plugin for beets that updates M3U playlists when beets moves your files around. It's pretty handy when you occasionally move your music library between mount points or want to change your file naming scheme without losing playlists.

Config

Append the following to your beets config (usually ~/.config/beets/config.yaml):

plupdate:
    playlist_dir: /path/to/playlists
    historical_paths:
        - /path/to/beets/library

If your beets database includes multiple base paths that point to music files, include them all in historical_paths.

TODO

This wasn't written with efficiency in mind as I only have about 100 human-generated playlists. A lot of the search/sort logic can be optimized.

I have only tested this using playlists with relative paths (which is the ncmpcpp default). Doing otherwise could break things.