feat: Customize partial to allow for global `ShowCanonicalLinks`

content/blog/hello-world.md

@@ -0,0 +1,9 @@
+---
+canonicalURL: http://itsfrommars.blogspot.com/2024/06/hello-world_11.html
+date: 2024-06-19T09:37:00-07:00
+description: This is a simple blog post created using the Google API, just to say hello to the world.
+lastmod: 2024-06-21T13:59:09-07:00
+title: Hello, world!
+---
+
+I created this post from the Google API. Hello, world!

hugo.yaml

@@ -5,10 +5,12 @@ title: Cross Blogger Showcase
 theme: PaperMod
 
 params:
-  title: Hi, this is a test!
-  description: "This is a showcase of Cross Blogger, a headless CMS for Hugo."
+  description: 'Example Hugo site using Cross Blogger to use Blogger as a headless CMS'
   env: production # Enables enhanced SEO
+  CanonicalLinkText: "Canonical URLs can optionally be enabled. This post was fetched from"
+  ShowCanonicalLinks: true  
   profileMode:
+    subtitle: 'The blog posts below are fetched from Blogger using Cross Blogger'
     enabled: true
     buttons:
       - name: Blog

layouts/partials/post_canonical.html

@@ -0,0 +1,12 @@
+{{ if and .Params.canonicalURL (or .Params.ShowCanonicalLink site.Params.ShowCanonicalLinks) -}}
+<!-- https://gohugo.io/functions/urls/parse/ -->
+{{ $url := urls.Parse .Params.canonicalURL }}
+<!-- https://gohugo.io/functions/strings/replacere/ -->
+{{ $urlWithoutScheme := replaceRE "^https?://" "" $url.String }}
+
+{{- if or .Params.author site.Params.author (.Param "ShowReadingTime") (not .Date.IsZero) .IsTranslated (or .Params.editPost.URL site.Params.editPost.URL) }}&nbsp;|&nbsp;{{- end -}}
+<span>
+    {{- (site.Params.CanonicalLinkText | default .Params.CanonicalLinkText) | default "Originally published at" -}}
+    &nbsp;<a href="{{ trim .Params.canonicalURL " " }}" title="{{ trim .Params.canonicalURL " " }}" target="_blank" rel="noopener noreferrer">{{ $urlWithoutScheme}}</a>
+</span>
+{{- end }}