Membership moves from patreon_client to native_ingest_common, beside PostRecordOutcome, for exactly the reason that one lives there: it is the seam's contract rather than the first platform's. Left where it was, D1 would have had to import the shape it implements from the module of the platform it is being mirrored FROM - which inverts the dependency and is how a seam advertised as portable quietly stays Patreon-shaped.
Found by C7's own pass, which is the point of running C7 before D1 rather than writing it up afterwards: this is invisible while there is only one implementer and load-bearing the moment there are two.
No behaviour change. Three files, no shim (rule 122): patreon_client imports it, the dataclass keeps its docstring, and the test imports from the seam's home. The docstring gains what the contract owes a second platform - that a missing field supplies the empty answer and never a guess: no tiers -> [], no pledge -> None (absent stays distinguishable from zero, since "free" and "we don't know" are different answers), no vanity -> None with identity falling back to the URL tail.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SHQB1YukL3VyvMK8rcbmV9
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>