optimize timestamps

plugins/inputs/rss/rss.go

@@ -10,7 +10,7 @@ import (
 	"github.com/mmcdole/gofeed"
 )
 
-var ts = time.Now()
+var ts time.Time
 
 type RSS struct {
 	URLs []string `toml:"urls"`
@@ -35,6 +35,10 @@ func (r *RSS) SampleConfig() string {
 }
 
 func (r *RSS) Gather(acc telegraf.Accumulator) error {
+	if ts.IsZero() {
+		ts = time.Now()
+	}
+
 	var wg sync.WaitGroup
 	for _, u := range r.URLs {
 		wg.Add(1)
@@ -72,15 +76,15 @@ func (r *RSS) gatherFeed(acc telegraf.Accumulator, url string, ts time.Time) err
 	tags["feed_version"] = feed.FeedVersion
 
 	for _, item := range feed.Items {
-		time := item.PublishedParsed
-		if time.Before(ts) {
+		pubtime := item.PublishedParsed
+		if pubtime.Before(ts) {
 			continue
 		}
 
 		fields["title"] = item.Title
 		fields["description"] = item.Description
 
-		acc.AddFields("rss", fields, tags, *time)
+		acc.AddFields("rss", fields, tags, *pubtime)
 	}
 
 	return nil