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feat(coverart): #388 remove global cover-art backfill cap

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Operator feedback (2026-05-09): the 500-album cap meant cover art rolled
in over many nightly runs even when local sources (sidecar/embedded)
could finish in minutes. Remove the global cap; rely on the existing
per-provider HTTP throttle (coverart httpClient MinInterval) so local
art is disk-speed and remote providers stay TOS-friendly.

- enricher.go / artist_enricher.go: EnrichBatch, EnrichArtistBatch,
  EnrichRetryMissing now treat limit<0 as unbounded (0 still = stage
  disabled). The cap was a SQL LIMIT; unbounded uses max int32.
- main.go: RunScanConfig EnrichCap/ArtistEnrichCap = -1 (unbounded).
- Drop LibraryConfig.CoverArtBackfillCap + the
  MINSTREL_LIBRARY_COVERART_BACKFILL_CAP env var.
- Drop the now-dead coverBackfillCap param threaded through
  server.New + api.Mount + the handlers struct.
- Admin bulk refetch (/api/admin/covers/refetch-missing) now drains
  unbounded; response {queued:int} → {started:bool} (the count is
  unknowable synchronously for a fire-and-forget drain). Web copy +
  client type + Go/web tests updated to match.

No doc refs existed (config.example.yaml / docker-compose / README
never documented the env var).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
Bryan Van Deusen
2026-05-16 18:41:21 -04:00
parent 4fca0e66cb
commit 005965d6de
14 changed files with 107 additions and 93 deletions
Download Patch File Download Diff File Expand all files Collapse all files
internal/server/server.go
+10 -11
View File
@@ -72,14 +72,13 @@ type Server struct {
// playlist cover collages under <DataDir>/playlist_covers/). Empty
// strings are tolerated by tests that don't exercise persisted-cover
// codepaths; production callers should pass a writable directory.
DataDir string
BrandingCfg config.BrandingConfig
CoverEnricher *coverart.Enricher
CoverArtBackfillCap int
CoverSettings *coverart.SettingsService
LibraryScanner *library.Scanner
ScanCfg library.RunScanConfig
Scheduler *library.Scheduler
DataDir string
BrandingCfg config.BrandingConfig
CoverEnricher *coverart.Enricher
CoverSettings *coverart.SettingsService
LibraryScanner *library.Scanner
ScanCfg library.RunScanConfig
Scheduler *library.Scheduler
// Bus is the live-event bus shared with background workers (the
// lidarr reconciler, scan scheduler) constructed in cmd/minstrel/main.go.
// When nil, Router() constructs a local fallback (test contexts).
@@ -92,8 +91,8 @@ type Server struct {
PlaylistScheduler *playlists.Scheduler
}
func New(logger *slog.Logger, pool *pgxpool.Pool, scanner ScanTrigger, subCfg subsonic.Config, eventsCfg config.EventsConfig, recCfg config.RecommendationConfig, dataDir string, brandingCfg config.BrandingConfig, coverEnricher *coverart.Enricher, coverArtBackfillCap int, coverSettings *coverart.SettingsService, libraryScanner *library.Scanner, scanCfg library.RunScanConfig, scheduler *library.Scheduler) *Server {
return &Server{Logger: logger, Pool: pool, Scanner: scanner, SubsonicCfg: subCfg, EventsCfg: eventsCfg, RecommendationCfg: recCfg, DataDir: dataDir, BrandingCfg: brandingCfg, CoverEnricher: coverEnricher, CoverArtBackfillCap: coverArtBackfillCap, CoverSettings: coverSettings, LibraryScanner: libraryScanner, ScanCfg: scanCfg, Scheduler: scheduler}
func New(logger *slog.Logger, pool *pgxpool.Pool, scanner ScanTrigger, subCfg subsonic.Config, eventsCfg config.EventsConfig, recCfg config.RecommendationConfig, dataDir string, brandingCfg config.BrandingConfig, coverEnricher *coverart.Enricher, coverSettings *coverart.SettingsService, libraryScanner *library.Scanner, scanCfg library.RunScanConfig, scheduler *library.Scheduler) *Server {
return &Server{Logger: logger, Pool: pool, Scanner: scanner, SubsonicCfg: subCfg, EventsCfg: eventsCfg, RecommendationCfg: recCfg, DataDir: dataDir, BrandingCfg: brandingCfg, CoverEnricher: coverEnricher, CoverSettings: coverSettings, LibraryScanner: libraryScanner, ScanCfg: scanCfg, Scheduler: scheduler}
}
func (s *Server) Router() http.Handler {
@@ -139,7 +138,7 @@ func (s *Server) Router() http.Handler {
if bus == nil {
bus = eventbus.New()
}
api.Mount(r, s.Pool, s.Logger, writer, s.RecommendationCfg, lidarrCfg, lidarrReqs, lidarrQuar, tracksSvc, playlistsSvc, s.CoverEnricher, s.CoverArtBackfillCap, s.CoverSettings, s.LibraryScanner, s.ScanCfg, s.Scheduler, s.DataDir, smtpSender, bus, s.PlaylistScheduler)
api.Mount(r, s.Pool, s.Logger, writer, s.RecommendationCfg, lidarrCfg, lidarrReqs, lidarrQuar, tracksSvc, playlistsSvc, s.CoverEnricher, s.CoverSettings, s.LibraryScanner, s.ScanCfg, s.Scheduler, s.DataDir, smtpSender, bus, s.PlaylistScheduler)
// /api/admin/scan is the only admin route owned by the server package
// (it needs the Scanner). Register it as a single inline-middleware
// route — using r.Route("/api/admin", ...) here would create a second