Fix loop var in concurrent download

app/app.go

@@ -38,7 +38,8 @@ func Run(configPath string) {
 	tgram := telegram.NewTelegramSender(tgramProxy, cfg.TelegramAuthToken)
 
 	wg := sync.WaitGroup{}
-	for _, feed := range cfg.Feeds {
+	for i := range cfg.Feeds {
+		feed := &cfg.Feeds[i]
 		log.Info("processing feed", "feed", feed.Name)
 		wg.Add(1)
 		go func() {
@@ -49,7 +50,7 @@ func Run(configPath string) {
 	wg.Wait()
 }
 
-func ProcessFeed(feed FeedCfg, scheduler Scheduler, dbDir string, tgram telegram.TelegramSender) {
+func ProcessFeed(feed *FeedCfg, scheduler Scheduler, dbDir string, tgram telegram.TelegramSender) {
 	sd, err := scheduler.ShouldDownload(feed.Name, feed.Cron)
 	if err != nil {
 		log.Error("shouldDownload failed", "feed", feed.Name, "err", err)