Add NeedPostProcess for Parser interface to improve performance of csv render (#15153)

modules/markup/csv/csv.go

@@ -28,6 +28,9 @@ func (Parser) Name() string {
 	return "csv"
 }
 
+// NeedPostProcess implements markup.Parser
+func (Parser) NeedPostProcess() bool { return false }
+
 // Extensions implements markup.Parser
 func (Parser) Extensions() []string {
 	return []string{".csv", ".tsv"}

modules/markup/external/external.go

@@ -38,6 +38,11 @@ func (p *Parser) Name() string {
 	return p.MarkupName
 }
 
+// NeedPostProcess implements markup.Parser
+func (p *Parser) NeedPostProcess() bool {
+	return p.MarkupParser.NeedPostProcess
+}
+
 // Extensions returns the supported extensions of the tool
 func (p *Parser) Extensions() []string {
 	return p.FileExtensions

modules/markup/markdown/markdown.go

@@ -228,6 +228,9 @@ func (Parser) Name() string {
 	return MarkupName
 }
 
+// NeedPostProcess implements markup.Parser
+func (Parser) NeedPostProcess() bool { return true }
+
 // Extensions implements markup.Parser
 func (Parser) Extensions() []string {
 	return setting.Markdown.FileExtensions

modules/markup/markup.go

@@ -33,6 +33,7 @@ func Init() {
 type Parser interface {
 	Name() string // markup format name
 	Extensions() []string
+	NeedPostProcess() bool
 	Render(rawBytes []byte, urlPrefix string, metas map[string]string, isWiki bool) []byte
 }
 
@@ -82,10 +83,13 @@ func RenderWiki(filename string, rawBytes []byte, urlPrefix string, metas map[st
 
 func render(parser Parser, rawBytes []byte, urlPrefix string, metas map[string]string, isWiki bool) []byte {
 	result := parser.Render(rawBytes, urlPrefix, metas, isWiki)
-	// TODO: one day the error should be returned.
-	result, err := PostProcess(result, urlPrefix, metas, isWiki)
-	if err != nil {
-		log.Error("PostProcess: %v", err)
+	if parser.NeedPostProcess() {
+		var err error
+		// TODO: one day the error should be returned.
+		result, err = PostProcess(result, urlPrefix, metas, isWiki)
+		if err != nil {
+			log.Error("PostProcess: %v", err)
+		}
 	}
 	return SanitizeBytes(result)
 }

modules/markup/orgmode/orgmode.go

@@ -30,6 +30,9 @@ func (Parser) Name() string {
 	return "orgmode"
 }
 
+// NeedPostProcess implements markup.Parser
+func (Parser) NeedPostProcess() bool { return true }
+
 // Extensions implements markup.Parser
 func (Parser) Extensions() []string {
 	return []string{".org"}