DRY pass commit 2. The two adapters re-implemented the same auth→drift→429→404
→http→network mapping in _failure_result; only the exception classes + drift
phrasing differed (divergence-bug risk: a new error_type handled in one and not
the other).
- native_ingest_common gains NativeIngestError / NativeAuthError / NativeDriftError
(status_code + retry_after on the base). Patreon{API,Auth,Drift}Error and
SubscribeStar{API,Auth,Drift}Error now subclass them via multiple inheritance,
keeping their isinstance-distinct platform names.
- Ingester._failure_result (base) does the whole mapping via the shared
NativeAuthError/NativeDriftError taxonomy + status_code; a new platform gets it
free. New drift_label kwarg supplies the per-platform API_DRIFT phrasing
("Patreon API" / "SubscribeStar markup"), preserving the existing message
(test asserts "Patreon API changed").
- Both adapters drop their near-identical _failure_result overrides and their now
-unused DownloadResult/ErrorType/*Auth/*Drift imports.
Verified at every consumer (rule 93/§8b): test_patreon_ingester (auth/drift/429/
404/network) and test_subscribestar_native (_failure_result mapping) both exercise
the base method now. Remaining: ingest_core L1/L3 logging (3/3).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
DRY pass commit 1 (process #594). Consolidate the helpers + download plumbing
the Patreon and SubscribeStar adapters had duplicated (SubscribeStar was
importing patreon privates — wrong owner). New backend/app/services/
native_ingest_common.py is the neutral home for:
- make_session (was _load_session ×2), retry_after_seconds + 429 constants,
sanitize_segment, basename_from_url, post_dir_name, MediaOutcome /
PostRecordOutcome.
- BaseNativeDownloader: the shared streaming GET (transient-retry + Range-resume)
and validation/quarantine. Patreon + SubscribeStar downloaders now subclass it;
each keeps only what differs (Patreon's Mux/yt-dlp video branch + detail-fetch
enrichment; SubscribeStar nothing extra). Behavior preserved exactly; the
divergence-bug risk (a fix to one _fetch_to_file not reaching the other) is gone.
- Folds in #899 L2: a quarantine now log.warning's path+reason (was counted only).
post_dir_name merges both date handlers (accepts trailing-Z and pre-parsed ISO).
Tests repointed to the single source at every consumer (rule 93 / §8b parity):
patreon_client/downloader, subscribestar_native. Exception-trio consolidation +
base _failure_result (2/3) and the remaining ingest_core logging (3/3) follow.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
bvandeusen