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tplimpl: Add translation links to the default sitemap template

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For pages with translations, add links with hreflang attributes to the
default sitemap template. This helps Google to show the correct
language page in its search results. The syntax used is based on
Google's example at [1].

Also update the sitemap template docs to reflect the changes in the
default template.

[1]
https://support.google.com/webmasters/answer/2620865?hl=en&topic=2370587&ctx=topic

Fixes #2569
This commit is contained in:
Jack Taylor 2017-04-23 05:37:14 +09:00 committed by Bjørn Erik Pedersen
parent 5f3ad1c319
commit 90d3fbf1da
2 changed files with 30 additions and 6 deletions
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21
docs/content/templates/sitemap.md
View file

@ -31,16 +31,29 @@ one.
## Hugo’s sitemap.xml
This template respects the version 0.9 of the [Sitemap
Protocol](http://www.sitemaps.org/protocol.html).
This template uses the version 0.9 of the [Sitemap
Protocol](http://www.sitemaps.org/protocol.html) with Google's [hreflang
attributes](https://support.google.com/webmasters/answer/2620865?hl=en&topic=2370587&ctx=topic)
for linking to translated content.
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
xmlns:xhtml="http://www.w3.org/1999/xhtml">
{{ range .Data.Pages }}
<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 }}
<priority>{{ .Sitemap.Priority }}</priority>{{ end }}{{ if .IsTranslated }}{{ range .Translations }}
<xhtml:link
rel="alternate"
hreflang="{{ .Lang }}"
href="{{ .Permalink }}"
/>{{ end }}
<xhtml:link
rel="alternate"
hreflang="{{ .Lang }}"
href="{{ .Permalink }}"
/>{{ end }}
</url>
{{ end }}
</urlset>

15
tpl/tplimpl/template_embedded.go
View file

@ -87,13 +87,24 @@ func (t *templateHandler) embedTemplates() {
</channel>
</rss>`)
t.addInternalTemplate("_default", "sitemap.xml", `<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
t.addInternalTemplate("_default", "sitemap.xml", `<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
xmlns:xhtml="http://www.w3.org/1999/xhtml">
{{ range .Data.Pages }}
<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 }}
<priority>{{ .Sitemap.Priority }}</priority>{{ end }}{{ if .IsTranslated }}{{ range .Translations }}
<xhtml:link
rel="alternate"
hreflang="{{ .Lang }}"
href="{{ .Permalink }}"
/>{{ end }}
<xhtml:link
rel="alternate"
hreflang="{{ .Lang }}"
href="{{ .Permalink }}"
/>{{ end }}
</url>
{{ end }}
</urlset>`)