Root cause (operator-confirmed via event metadata + lsar): a "High Resolution
files" pack often wraps a per-chapter .rar/.zip INSIDE one outer archive (incase).
_import_archive only extracted one level — a nested-archive member failed
is_supported and was skipped, so the real pages were silently dropped and the post
showed "archive but no images". The disk scan found this pattern recurring across
the attachment store.
- Recurse into nested archives via _collect_archive_members: a member that is
itself an archive is bomb-probed and extracted too, depth-capped at
_ARCHIVE_MAX_DEPTH=3. Nested members attribute to the OUTER archive's sidecar so
they link to the right Post. Each level is wrapped so one bad nested archive
can't abort the import. The shared path means external (mega/gdrive) archives
recurse too.
- Replace the catch-all "held no supported members" string with a per-outcome
tally (media/deduped/unsupported/failed/nested/nested_rejected). The all-deduped
case is now recognised as BENIGN — images already in the library, re-linked to
this post via enrich-on-duplicate — and returns attached WITHOUT error, so it no
longer false-flags in event metadata.unextracted_archives. Genuine failures
carry the precise breakdown.
Tests: nested zip-in-cbz imports both inner images + links them to the outer post;
all-deduped archive returns attached with error=None and links images to both posts.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
bvandeusen