Fix some lint

.github/workflows/lint.yaml

@@ -11,6 +11,11 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
+      - name: Update Go
+        uses: actions/setup-go@v4
+        with:
+          go-version: '>=1.21.0'
+          cache: false
       - name: Lint
         uses: golangci/golangci-lint-action@3a919529898de77ec3da873e3063ca4b10e7f5cc # v3.7.0
         with:

sloghandler.go

@@ -52,7 +52,7 @@ func (l *slogHandler) GetLevel() slog.Level {
 	return l.levelBias
 }
 
-func (l *slogHandler) Enabled(ctx context.Context, level slog.Level) bool {
+func (l *slogHandler) Enabled(_ context.Context, level slog.Level) bool {
 	return l.sink != nil && (level >= slog.LevelError || l.sink.Enabled(l.levelFromSlog(level)))
 }
 
@@ -107,34 +107,34 @@ func (l *slogHandler) WithAttrs(attrs []slog.Attr) slog.Handler {
 		return l
 	}
 
-	copy := *l
+	clone := *l
 	if l.slogSink != nil {
-		copy.slogSink = l.slogSink.WithAttrs(attrs)
-		copy.sink = copy.slogSink
+		clone.slogSink = l.slogSink.WithAttrs(attrs)
+		clone.sink = clone.slogSink
 	} else {
 		kvList := make([]any, 0, 2*len(attrs))
 		for _, attr := range attrs {
 			if attr.Key != "" {
 				kvList = append(kvList, l.addGroupPrefix(attr.Key), attr.Value.Resolve().Any())
 			}
 		}
-		copy.sink = l.sink.WithValues(kvList...)
+		clone.sink = l.sink.WithValues(kvList...)
 	}
-	return &copy
+	return &clone
 }
 
 func (l *slogHandler) WithGroup(name string) slog.Handler {
 	if l.sink == nil {
 		return l
 	}
-	copy := *l
+	clone := *l
 	if l.slogSink != nil {
-		copy.slogSink = l.slogSink.WithGroup(name)
-		copy.sink = copy.slogSink
+		clone.slogSink = l.slogSink.WithGroup(name)
+		clone.sink = clone.slogSink
 	} else {
-		copy.groupPrefix = copy.addGroupPrefix(name)
+		clone.groupPrefix = clone.addGroupPrefix(name)
 	}
-	return &copy
+	return &clone
 }
 
 func (l *slogHandler) addGroupPrefix(name string) string {

slogr_test.go

@@ -218,7 +218,8 @@ func containsOne(hay string, needles ...string) bool {
 	return false
 }
 
-func TestDiscard(t *testing.T) {
+func TestDiscard(_ *testing.T) {
+	// Compile-test
 	logger := slog.New(logr.ToSlogHandler(logr.Discard()))
 	logger.WithGroup("foo").With("x", 1).Info("hello")
 }

slogsink.go

@@ -91,12 +91,12 @@ func (l *slogSink) log(err error, msg string, level slog.Level, kvList ...interf
 		record.AddAttrs(slog.Any(errKey, err))
 	}
 	record.Add(kvList...)
-	l.handler.Handle(context.Background(), record)
+	_ = l.handler.Handle(context.Background(), record)
 }
 
 func (l slogSink) WithName(name string) LogSink {
 	if l.name != "" {
-		l.name = l.name + "/"
+		l.name += "/"
 	}
 	l.name += name
 	return &l