vdoc: allow to omit timestamp (#6652)

cmd/tools/vdoc.v

@@ -109,6 +109,7 @@ mut:
 	open_docs      bool
 	server_port    int = 8046
 	inline_assets  bool
+	no_timestamp   bool
 	output_path    string
 	input_path     string
 	symbol_name    string
@@ -456,7 +457,6 @@ fn (cfg DocConfig) write_content(cn &doc.DocNode, dcs &doc.Doc, mut hw strings.B
 
 fn (cfg DocConfig) gen_html(idx int) string {
 	dcs := cfg.docs[idx]
-	time_gen := '$dcs.time_generated.day $dcs.time_generated.smonth() $dcs.time_generated.year $dcs.time_generated.hhmmss()'
 	mut toc := strings.new_builder(200)
 	mut toc2 := strings.new_builder(200)
 	mut contents := strings.new_builder(200)
@@ -532,7 +532,7 @@ fn (cfg DocConfig) gen_html(idx int) string {
 		'<div class="doc-toc"><ul>' + toc.str() + '</ul></div>'
 	} else {
 		''
-	}).replace('{{ footer_content }}', 'Powered by vdoc. Generated on: $time_gen').replace('{{ footer_assets }}',
+	}).replace('{{ footer_content }}', cfg.gen_footer_text(idx)).replace('{{ footer_assets }}',
 		if cfg.inline_assets {
 		'<script>' + cfg.assets['doc_js'] + '</script>'
 	} else {
@@ -577,10 +577,22 @@ fn (cfg DocConfig) gen_markdown(idx int, with_toc bool) string {
 		cw.writeln('```v\n$cn.content\n```$cn.comment\n')
 		cw.writeln('[\[Return to contents\]](#Contents)\n')
 	}
-	cw.writeln('#### Generated by vdoc. Last generated: $dcs.time_generated.str()')
+	footer_text := cfg.gen_footer_text(idx)
+	cw.writeln('#### $footer_text')
 	return hw.str() + '\n' + cw.str()
 }
 
+fn (cfg DocConfig) gen_footer_text(idx int) string {
+	current_doc := cfg.docs[idx]
+	footer_text := 'Powered by vdoc.'
+	if cfg.no_timestamp {
+		return footer_text
+	}
+	generated_time := current_doc.time_generated
+	time_str := '$generated_time.day $generated_time.smonth() $generated_time.year $generated_time.hhmmss()'
+	return '$footer_text Generated on: $time_str'
+}
+
 fn (cfg DocConfig) render_doc(doc doc.Doc, i int) (string, string) {
 	// since builtin is generated first, ignore it
 	mut name := if ('vlib' in cfg.input_path &&
@@ -1034,6 +1046,9 @@ fn main() {
 					cfg.output_type = .html
 				}
 			}
+			'-no-timestamp' {
+				cfg.no_timestamp = true
+			}
 			'-readme' {
 				cfg.include_readme = true
 			}

cmd/v/help/doc.txt

@@ -23,6 +23,7 @@ Options:
   -v              Enables verbose logging. For debugging purposes.
   -filename       Specifies the specific file to document.
   -pos            Specifies the position. Used with `-filename`.
+  -no-timestamp   Omit timestamp in the output file.
 
 For HTML mode:
   -inline-assets  Embeds the contents of the CSS and JS assets into the webpage directly.