Cleanup semgrep errors

cmd/eksterd/http.go

@@ -119,11 +119,7 @@ func (h *mainHandler) renderTemplate(w io.Writer, filename string, data interfac
 	if err != nil {
 		return err
 	}
-	err = t.ExecuteTemplate(w, filename, data)
-	if err != nil {
-		return err
-	}
-	return nil
+	return t.ExecuteTemplate(w, filename, data)
 }
 
 func getSessionCookie(w http.ResponseWriter, r *http.Request) string {
@@ -154,11 +150,7 @@ func loadSession(sessionVar string, conn redis.Conn) (session, error) {
 	}
 
 	err = redis.ScanStruct(data, &sess)
-	if err != nil {
-		return sess, err
-	}
-
-	return sess, nil
+	return sess, err
 }
 
 func saveSession(sessionVar string, sess *session, conn redis.Conn) error {

cmd/eksterd/memory.go

@@ -114,12 +114,7 @@ func (b *memoryBackend) load() error {
 	}
 	defer f.Close()
 	jw := json.NewDecoder(f)
-	err = jw.Decode(b)
-	if err != nil {
-		return err
-	}
-
-	return nil
+	return jw.Decode(b)
 }
 
 func (b *memoryBackend) refreshChannels() {
@@ -558,12 +553,7 @@ func (b *memoryBackend) MarkRead(channel string, uids []string) error {
 		return err
 	}
 
-	err = b.updateChannelUnreadCount(channel)
-	if err != nil {
-		return err
-	}
-
-	return nil
+	return b.updateChannelUnreadCount(channel)
 }
 
 func (b *memoryBackend) Events() (chan sse.Message, error) {
@@ -586,12 +576,7 @@ func (b *memoryBackend) ProcessContent(channel, fetchURL, contentType string, bo
 		}
 	}
 
-	err = b.updateChannelUnreadCount(channel)
-	if err != nil {
-		return err
-	}
-
-	return nil
+	return b.updateChannelUnreadCount(channel)
 }
 
 // Fetch3 fills stuff

cmd/eksterd/search.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"errors"
 	"fmt"
 	"os"
 
@@ -11,7 +12,7 @@ import (
 var index bleve.Index
 
 func initSearch() error {
-	if _, err := os.Stat("items.bleve"); os.IsNotExist(err) {
+	if _, err := os.Stat("items.bleve"); errors.Is(err, os.ErrNotExist) {
 		mapping := bleve.NewIndexMapping()
 		index, err = bleve.New("items.bleve", mapping)
 		if err != nil {

pkg/timeline/redisset.go

@@ -85,8 +85,7 @@ func (timeline *redisSortedSetTimeline) Items(before, after string) (microsub.Ti
 		item := microsub.Item{}
 		err := json.Unmarshal(obj, &item)
 		if err != nil {
-			// FIXME: what should we do if one of the items doen't unmarshal?
-			log.Println(err)
+			log.Printf("item doesn not unmarshal: %v", err)
 			continue
 		}
 		item.Read = false

pkg/websub/subscribe.go

@@ -21,12 +21,12 @@ import (
 func GetHubURL(client *http.Client, topic string) (string, error) {
 	hubURL, err := parseLinkHeaders(client, topic)
 	if err == nil {
-		return hubURL, err
+		return hubURL, nil
 	}
 
 	hubURL, err = parseBodyLinks(client, topic)
 	if err == nil {
-		return hubURL, err
+		return hubURL, nil
 	}
 
 	return "", fmt.Errorf("no hub url found for topic %s", topic)