Only start the cache warming after all folders were scanned

scanner/scanner.go

@@ -122,6 +122,7 @@ func (s *scanner) RescanAll(fullRescan bool) {
 }
 
 func (s *scanner) rescanAll(fullRescan bool) {
+	defer s.cacheWarmer.Flush(context.Background())
 	var hasError bool
 	for folder := range s.folders {
 		err := s.rescan(folder, fullRescan)

scanner/tag_scanner.go

@@ -65,7 +65,6 @@ const (
 // Delete all empty albums, delete all empty artists, clean-up playlists
 func (s *TagScanner) Scan(ctx context.Context, lastModifiedSince time.Time) error {
 	ctx = s.withAdminUser(ctx)
-	defer s.cacheWarmer.Flush(ctx)
 
 	start := time.Now()
 	allFSDirs, err := s.getDirTree(ctx)