Follow-up to the 2.6.3 queue→history handoff fix (#706). User
@IamGroot60 reported in #721 that on 2.6.3 the bundle still gets
stuck mid-flight: SoulSync UI sits on "Usenet downloading release
61%" forever, SAB History shows the job as Completed 2+ minutes
ago, files are physically present in the slskd downloads folder
but never copied into ``storage/album_bundle_staging/<batch>/``.
Root cause: a second-stage gap in the SAB pipeline. SAB flips a
job's ``status`` to ``Completed`` in History as soon as par2 +
unrar finish, but its post-processing pipeline writes the final
``storage`` field a few seconds LATER (the move-to-final step).
``poll_album_download`` saw the first ``Completed`` read with
``save_path=None`` and bailed:
if status.state in complete_states:
return last_save_path # ← None at this point
``download_album_to_staging`` got ``save_path=None``, set
``result['error']`` and returned. The bundle was marked failed but
the LAST progress emit before the failure was ``downloading
progress=0.61``, so the UI froze on "61%" — the terminal ``failed``
emit never registered on the user's screen because the renderer
holds the last-known progress.
Fix
- ``poll_album_download`` now tracks a separate transient counter
for "complete state seen, save_path not yet set." Up to
``transient_miss_threshold`` (default 5) consecutive reads in
that state are tolerated before the poll bails. SAB writes the
``storage`` field within 2-10 seconds of the History flip in
practice — the default 5 × 2s = 10s window covers it.
- When save_path eventually lands, return it normally.
- When the threshold is exhausted with save_path still empty,
emit terminal ``failed`` with an explicit message pointing at
the missing save_path field — no more 6-hour silent spin.
- Earlier ``downloading`` reads with a non-empty ``save_path``
(qBit / Transmission set this from the start of the download)
remain "sticky" — if the eventual ``completed`` read has empty
save_path, the cached one applies. So torrent flows aren't
affected by the retry path.
SAB adapter (``_parse_history_slot``)
- Widened the save_path field fallback chain:
storage → path → download_path → dirname → incomplete_path
Covers SAB version differences (older builds populated ``path``)
and forks that expose ``download_path`` or ``dirname``.
``incomplete_path`` is the last resort — SAB's in-progress dir
before the final move — so the bundle plugin at least has a
path to scan when nothing else lands.
- Whitespace-only values are skipped.
- Loud debug log when none of the known fields land — users on
SAB versions / forks with novel field names need to see this in
logs so we can grow ``_HISTORY_SAVE_PATH_KEYS``.
Tests
- ``test_album_bundle.py`` (3 new):
- tolerates_completed_with_late_save_path_arrival — the #721
scenario; first Completed read has no save_path, third has
it; poll returns the path normally
- gives_up_when_completed_with_no_save_path_persists — past
the threshold the poll fails loudly instead of silent-spinning
- uses_save_path_from_earlier_downloading_emit_if_completed_lacks_one
— sticky save_path keeps torrent flows working
- ``test_usenet_client_adapters.py`` (6 new):
- falls back to ``path`` when ``storage`` empty
- falls back to ``download_path``
- prefers ``storage`` when multiple fields present
- returns ``None`` when all fields empty (the #721 gap window)
- ignores whitespace-only values
- uses ``incomplete_path`` as last resort
132 album-bundle + usenet tests pass.
Branch is on dev parented at 2.6.3 — user @IamGroot60 offered
to test on dev, so this is a candidate cherry-pick for either
a 2.6.4 hotfix or merge straight into dev for the next release.
df675c7c9f