A single 429 mid-walk used to fail the run → RATE_LIMITED → platform-wide
cooldown → every Patreon source dark ("testing dead"). The native path also
ignored the operator's existing politeness setting. Fixed both:
- Pacing (avoid 429s): honor download_rate_limit_seconds (gallery-dl's
`rate_limit`, read off self.gdl) as a pre-download sleep on real media
downloads only (skips don't pace); pace /api/posts page fetches with the
per-source sleep_request override, defaulting to max(0.5, rate_limit/4) —
the same API-pacing default gallery-dl used for `sleep-request`.
- 429 backoff (ride out transient limits): PatreonClient._fetch retries a
429 with backoff (honor Retry-After, else exponential 2·2^(n-1), capped
30s, ≤3 tries); only a PERSISTENT 429 propagates as terminal
RATE_LIMITED. Light 2-retry on a media-GET 429 too.
Threaded via PatreonIngester(rate_limit=, request_sleep=) →
PatreonClient/PatreonDownloader; download_service sources them. Injected
test client/downloader are unaffected (carry their own pacing).
Tests mock time.sleep (no real sleeping): retry-then-success, persistent
429 raises after N, Retry-After honored, request_sleep paces, media pacing
per real download, skips don't pace, media 429 retried.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
PatreonDownloader.download_post: writes resolved MediaItems to gallery-dl's
exact on-disk layout (<slug>/patreon/<date>_<id>_<title40>/<NN>_<file>) +
a sidecar the importer's find_sidecar/parse_sidecar consume unchanged. Two-tier
skip (injected seen predicate, then disk). Streamed GET (.part→rename) +
file_validator quarantine; Mux/m3u8 video shells out to yt-dlp with Patreon
Referer/Origin. Pure (no DB) — ledger + orchestration land in step 3. Unit
tests stub the session + yt-dlp seams (no network/subprocess).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
bvandeusen