Update does nothing

[justjakka]

When running beet update the database doesnt get updated - changes are listed, but running update again yields the same output.

Problem

Running upd in verbose (-vv) mode showed no errors (example):

skipping /mnt/Music/processed/MEGAREX/[M3-43] MEGAREX — TECHCORE EVANGELIX 01 {MRX-036}/2-30. YUKIYANAGI — want to change.flac because mtime is up to date (1751014406.0)
YUKIYANAGI - TECHCORE EVANGELIX 02 - Complex Mind
  genre: UK Hardcore -> Techcore
Sending event: database_change
skipping /mnt/Music/processed/MEGAREX/[C98] MEGAREX — Tribal Frontier {MRX-063}/1-3. YUKIYANAGI — My Ritual.flac because mtime is up to date (1751014328.0)
...
Sending event: database_change
Sending event: database_change
Sending event: database_change
Sending event: cli_exit

Yet running the update again shows no changes, although the database file was modified.

Setup

• OS: Arch Linux
• Python version: 3.11.13 (pipx)
• beets version: 2.3.1
• Turning off plugins made problem go away (yes/no): no

My configuration (output of beet config) is:

directory: /mnt/Music/processed
# --------------- Main ---------------

library: ~/.config/beets/library.db

import:
    copy: no
    write: yes
    move: yes
pluginpath: [/home/jakka/dotfiles/beets/beetsplugins/]

# --------------- Plugins ---------------

plugins: chroma fromfilename mbsync badfiles fish mbsubmit inline event extrafiles missing duplicates
musicbrainz:
    extra_tags:
    - year
    - catalognum
    - country
    - media
    - label
    external_ids:
        bandcamp: yes
    genres: no
    host: localhost:5000
    https: no
    ratelimit: 1000
chroma:
    auto: yes
acoustid:
    apikey: REDACTED
item_fields:
    disc_and_track: u'%01i-%01i' % (disc, track)
paths:
    default: "%if{$label,$label,$albumartist}/$event_pretty%if{$label,$albumartist \u2014 ,}$album%if{$catalognum, {$catalognum$}, {[none]$}}%aunique{albumartist album catalognum, media}/$disc_and_track. %if{$artist_credit,$artist_credit,$artist} \u2014 $title"
    comp: "%if{$label,$label,Various Artists}/$event_pretty$album%if{$catalognum, {$catalognum$}, {[none]$}}%aunique{album catalognum, media}/$disc_and_track. %if{$artist_credit,$artist_credit,$artist} \u2014 $title"
badfiles:
    check_on_import: yes
extrafiles:
    patterns:
        all: '*'
    paths:
        all: $albumpath/$filename
mbsubmit:
    format: $track. $title - $artist ($length)
    threshold: medium
    picard_path: picard
missing:
    count: no
    total: no
    album: no
duplicates:
    album: no
    checksum: ''
    copy: ''
    count: no
    delete: no
    format: ''
    full: no
    keys: []
    merge: no
    move: ''
    path: no
    tiebreak: {}
    strict: no
    tag: ''
pathfields: {}
album_fields: {}

im also using my own plugin for reading and using custom event tag:

from beets.plugins import BeetsPlugin
import mediafile

class doujin_event(BeetsPlugin):
    def __init__(self):
        super().__init__()
        field = mediafile.MediaField(
            mediafile.MP3DescStorageStyle(u'event'),
            mediafile.StorageStyle(u'event')
        )
        self.add_media_field('event', field)
        self.template_fields['event_pretty'] = _tmpl_event

def _tmpl_event(item):
    if item['event']:
        return '[' + item['event'] + '] '
    else:
        return ''

[justjakka]

while this is not the solution - but it would work for me - an option to completely ignore specific fields when importing/updating/writing would fix this behaviour

[justjakka]

explicitly calling store works:

from beets.plugins import BeetsPlugin
from beets.ui import Subcommand, decargs


class GenrePlugin(BeetsPlugin):
    def __init__(self):
        super().__init__()

    def commands(self):
            fix_command = Subcommand("fixgenres", help="rewrites database if genres dont match")

            def fix_genres(lib, opts, args):
                for item in lib.items(decargs(args)):
                    self.process_item(item)

            fix_command.func = fix_genres
            return [fix_command]

    def process_item(self, item):
        genre = item.genre
        item.read()
        tags = dict(item)
        if genre != item.genre:
            item.store(tags)

still wonder why upd doesnt actually store read tags