From e19a959d150b4cfee644f1a29ada1d05c826f207 Mon Sep 17 00:00:00 2001
From: Mischa POSLAWSKY <perl@shiar.org>
Date: Wed, 3 May 2017 00:02:15 +0200
Subject: [PATCH] sitemap: include file dates in lastmod attribute

---
 tools/mksitemap | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/tools/mksitemap b/tools/mksitemap
index 4948525..7b9c5a0 100755
--- a/tools/mksitemap
+++ b/tools/mksitemap
@@ -4,6 +4,9 @@ use warnings;
 
 our $VERSION = '1.00';
 
+use File::stat;
+use Time::Piece;
+
 my @pages = (
 	[qw( index )],
 	[qw( readline vi digraphs charset unicode )],
@@ -24,12 +27,14 @@ say '<?xml version="1.0" encoding="UTF-8"?>';
 say '<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">';
 for my $group (@pages) {
 	state $prio = 1;
-	for my $page (@{$group}) {
-		$page =~ s/\Aindex\z//;
+	for my $file (@{$group}) {
+		(my $page = $file) =~ s/\Aindex\z//;
+		$file .= '.plp';
 		print '<url>';
 		print "<loc>http://sheet.shiar.nl/$page</loc>";
 		printf '<changefreq>%s</changefreq>', $freq{$page} // 'monthly';
 		printf '<priority>%.2f</priority>', $prio;
+		printf '<lastmod>%s</lastmod>', localtime(stat($file)->mtime)->date;
 		say '</url>';
 	}
 	$prio -= .1;
-- 
2.30.0