✨ Add JSON-LD structured metadata

layouts/partials/schema.html

@@ -0,0 +1,40 @@
+{{ if .IsHome -}}
+  <script type="application/ld+json">
+  {
+    "@context": "https://schema.org",
+    "@type": "WebSite",
+    "name": "{{ .Site.Title | safeJS }}",
+    "url": "{{ .Site.BaseURL | safeURL }}",
+    "description": "{{ .Site.Params.description | safeJS }}"
+  }
+  </script>
+{{ else if .IsPage }}
+  {{- $iso8601 := "2006-01-02T15:04:05-07:00" -}}
+  <script type="application/ld+json">
+  {
+    "@context": "https://schema.org",
+    "@type": "BlogPosting",
+    "articleSection": "{{ (site.GetPage .Section).Title }}",
+    "name": "{{ .Title | safeJS }}",
+    "headline": "{{ .Title | safeJS }}",
+    "description": "{{ with .Description }}{{ . }}{{ else }}{{if .IsPage}}{{ .Summary }}{{ else }}{{ with .Site.Params.description }}{{ . }}{{ end }}{{ end }}{{ end }}",
+    {{ with .Site.LanguageCode }}"inLanguage": {{ . }},{{ end }}
+    "author" : {
+      "@type": "Person",
+      "name": "{{ .Site.Author.name | safeJS }}"
+    },
+    "creator" : {
+      "@type": "Person",
+      "name": "{{ .Site.Author.name | safeJS }}"
+    },
+    "copyrightHolder": "{{ .Site.Author.name | safeJS }}",
+    {{ with .PublishDate }}"copyrightYear": "{{ .Format "2006" }}",{{ end }}
+    {{ with .PublishDate }}"dateCreated": "{{ .Format $iso8601 }}",{{ end }}
+    {{ with .PublishDate }}"datePublished": "{{ .Format $iso8601 }}",{{ end }}
+    {{ with .Lastmod }}"dateModified": "{{ .Format $iso8601 }}",{{ end }}
+    "url" : "{{ .Permalink }}",
+    "wordCount": "{{ .WordCount }}",
+    "keywords": [{{ if .IsPage}}{{ range $index, $tag := .Params.tags }}{{ $tag }},{{ end }}{{ else }}{{ range $plural, $terms := .Site.Taxonomies }}{{ range $term, $val := $terms }}{{ printf "%s," $term }}{{ end }}{{ end }}{{ end }}]
+  }
+  </script>
+{{ end }}