#!/bin/sh
set -euo pipefail


opening() {
	cat <<'EOF'
<?xml version="1.0" encoding="UTF-8"?>
<urlset
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd"
  xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
EOF
}

closing() {
	echo '</urlset>'
}


opening
cat "$@"
closing