Add golangci-lint

rendering/render_to_reveal.go

@@ -47,6 +47,7 @@ type RevealRenderer struct {
 	hasNotes     bool
 }
 
+//nolint:gocyclo // under construction
 func (r *RevealRenderer) RenderHook(w io.Writer, node ast.Node, entering bool) (ast.WalkStatus, bool) {
 	switch b := node.(type) {
 	case *ast.Document:
@@ -82,7 +83,7 @@ func (r *RevealRenderer) RenderHook(w io.Writer, node ast.Node, entering bool) (
 		return ast.GoToNext, false
 	case *ast.HorizontalRule:
 		next := peekNextRuler(b)
-		var input = string(b.Literal)
+		input := string(b.Literal)
 		if next != nil {
 			input += string(next.Literal)
 		}
@@ -185,6 +186,7 @@ func getAttributesFromChildSpan(node ast.Node) []template.HTMLAttr {
 }
 
 func extractElementAttributes(htmlSpan *ast.HTMLSpan) (attrs []template.HTMLAttr) {
+	const expectedNumberOfMatches = 4
 	htmlComment := string(htmlSpan.Literal)
 	if htmlComment == "" {
 		return nil
@@ -192,7 +194,7 @@ func extractElementAttributes(htmlSpan *ast.HTMLSpan) (attrs []template.HTMLAttr
 	matches := htmlElementAttributesRegexp.FindAllStringSubmatch(htmlComment, -1)
 	attrs = make([]template.HTMLAttr, 0, len(matches))
 	for idx := range matches {
-		if len(matches[idx]) != 4 {
+		if len(matches[idx]) != expectedNumberOfMatches {
 			continue
 		}
 

rendering/state.go

@@ -18,34 +18,32 @@ const (
 	StateTypeNested
 )
 
-var (
-	EventMapping = map[EventType][]byte{
-		EventTypeHorizontalSplit: []byte(`
+var EventMapping = map[EventType][]byte{
+	EventTypeHorizontalSplit: []byte(`
 </section>
 <section>`),
-		EventTypeVerticalSplit: []byte(`
+	EventTypeVerticalSplit: []byte(`
 </section>
 <section>
 <section>
 `),
-		EventTypeHorizontalEnd: []byte(`
+	EventTypeHorizontalEnd: []byte(`
 </section>
 `),
-		EventTypeVerticalSplitEnd: []byte(`
+	EventTypeVerticalSplitEnd: []byte(`
 </section>
 </section>
 <section>`),
-		EventTypeVerticalDocumentEnd: []byte(`
+	EventTypeVerticalDocumentEnd: []byte(`
 </section>
 </section>
 `),
-		EventTypeVerticalVerticalSplit: []byte(`
+	EventTypeVerticalVerticalSplit: []byte(`
 </section>
 </section>
 <section>
 <section>`),
-	}
-)
+}
 
 func NewStateMachine(verticalSplit, horizontalSplit string) *StateMachine {
 	return &StateMachine{