hugo-academic/wowchemy/layouts/_default/sitemap.xml

{{ printf "<?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"yes\"?>" | safeHTML }}
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
        xmlns:xhtml="http://www.w3.org/1999/xhtml">
  {{/* Check that page is built (has a URL) and is not private. */}}
  {{ range where (where .Data.Pages "Permalink" "!=" nil) "Params.private" "ne" true }}
  <url>
    <loc>{{ .Permalink }}</loc>
    {{- if not .Lastmod.IsZero }}<lastmod>{{ safeHTML ( .Lastmod.Format "2006-01-02T15:04:05-07:00" ) }}</lastmod>{{ end }}
    {{- with .Sitemap.ChangeFreq }}<changefreq>{{ . }}</changefreq>{{ end }}
    {{- if ge .Sitemap.Priority 0.0 }}<priority>{{ .Sitemap.Priority }}</priority>{{ end }}
    {{- if .IsTranslated -}}

    {{- range .Translations -}}
    <xhtml:link
      rel="alternate"
      hreflang="{{ .Language.Lang }}"
      href="{{ .Permalink }}"
    />
    {{- end -}}

    <xhtml:link
      rel="alternate"
      hreflang="{{ .Language.Lang }}"
      href="{{ .Permalink }}"
    />

    {{- end -}}
  </url>
  {{- end -}}
</urlset>