CHANGELOG.md: add note about templates for Hugo v0.146.0

As of Hugo v0.146.0 the template system was overhauled and it seems
we need to use different syntax here. The reason for overriding the
Hugo internal templates in the past (post images) is no longer pre-
sent, so I can revert to the internal ones, but confusingly, we do
not refer to them with "_internal" now.

See: https://github.com/gohugoio/hugo/pull/13541

CHANGELOG.md

@@ -15,6 +15,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## Fixed
 - Deprecations from Hugo (DisqusShortname and GoogleAnalytics)
+- Deprecations from Hugo (Templates)
 
 ## [[ 1.6.0 ]] - 2020-12-05
 ### Changed

layouts/partials/head-meta.html

@@ -1,8 +1,8 @@
 <meta charset="utf-8">
 <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
 
-{{ partial "opengraph.html" . }}
-{{ partial "twitter_cards.html" . }}
+{{- partial "opengraph.html" . }}
+{{- partial "twitter_cards.html" . }}
 
 {{- with .Site.Params.google_verify_meta -}}
 <meta name="google-site-verification" content="{{ . }}" />

layouts/partials/opengraph.html

@@ -1,73 +0,0 @@
-<!--
-Import Hugo's internal twitter_cards.html template to add support for resolving
-images in page bundles and with falling back to the default of looking in the
-static assets directory.
-
-See: tpl/tplimpl/embedded/templates/opengraph.html
-See: https://github.com/gohugoio/hugo/issues/5078
--->
-<meta property="og:title" content="{{ .Title }}" />
-<meta property="og:description" content="{{ with .Description }}{{ . }}{{ else }}{{if .IsPage}}{{ .Summary }}{{ else }}{{ with .Site.Params.description }}{{ . }}{{ end }}{{ end }}{{ end }}" />
-<meta property="og:type" content="{{ if .IsPage }}article{{ else }}website{{ end }}" />
-<meta property="og:url" content="{{ .Permalink }}" />
-{{ with $.Params.images }}{{ range first 6 . -}}
-{{/* try to get the image from the page bundle */}}
-{{- with $.Page.Resources.GetMatch (printf "*%s*" .) -}}
-<meta property="og:image" content="{{ .Permalink }}" />
-{{/* otherwise, get the image from /static */}}
-{{- else -}}
-<meta property="og:image" content="{{ . | absURL }}" />
-{{- end }}
-{{ end }}{{ else -}}
-{{- $images := $.Resources.ByType "image" -}}
-{{- $featured := $images.GetMatch "*feature*" -}}
-{{- if not $featured }}{{ $featured = $images.GetMatch "{*cover*,*thumbnail*}" }}{{ end -}}
-{{- with $featured -}}
-<meta property="og:image" content="{{ $featured.Permalink }}"/>
-{{ else -}}
-{{- with $.Site.Params.images -}}
-<meta property="og:image" content="{{ index . 0 | absURL }}"/>
-{{ end }}{{ end }}{{ end }}
-
-{{- $iso8601 := "2006-01-02T15:04:05-07:00" -}}
-{{- if .IsPage }}
-{{- if not .PublishDate.IsZero }}<meta property="article:published_time" {{ .PublishDate.Format $iso8601 | printf "content=%q" | safeHTMLAttr }} />
-{{ else if not .Date.IsZero }}<meta property="article:published_time" {{ .Date.Format $iso8601 | printf "content=%q" | safeHTMLAttr }} />
-{{ end }}
-{{- if not .Lastmod.IsZero }}<meta property="article:modified_time" {{ .Lastmod.Format $iso8601 | printf "content=%q" | safeHTMLAttr }} />{{ end }}
-{{- else }}
-{{- if not .Date.IsZero }}<meta property="og:updated_time" {{ .Lastmod.Format $iso8601 | printf "content=%q" | safeHTMLAttr }} />
-{{- end }}
-{{- end }}{{/* .IsPage */}}
-
-{{- with .Params.audio }}<meta property="og:audio" content="{{ . }}" />{{ end }}
-{{- with .Params.locale }}<meta property="og:locale" content="{{ . }}" />{{ end }}
-{{- with .Site.Params.title }}<meta property="og:site_name" content="{{ . }}" />{{ end }}
-{{- with .Params.videos }}
-{{- range . }}
-<meta property="og:video" content="{{ . | absURL }}" />
-{{ end }}{{ end }}
-
-{{- /* If it is part of a series, link to related articles */}}
-{{- $permalink := .Permalink }}
-{{- $siteSeries := .Site.Taxonomies.series }}{{ with .Params.series }}
-{{- range $name := . }}
-  {{- $series := index $siteSeries $name }}
-  {{- range $page := first 6 $series.Pages }}
-    {{- if ne $page.Permalink $permalink }}<meta property="og:see_also" content="{{ $page.Permalink }}" />{{ end }}
-  {{- end }}
-{{ end }}{{ end }}
-
-{{- if .IsPage }}
-{{- range .Site.Authors }}{{ with .Social.facebook }}
-<meta property="article:author" content="https://www.facebook.com/{{ . }}" />{{ end }}{{ with .Site.Social.facebook }}
-<meta property="article:publisher" content="https://www.facebook.com/{{ . }}" />{{ end }}
-<meta property="article:section" content="{{ .Section }}" />
-{{- with .Params.tags }}{{ range first 6 . }}
-<meta property="article:tag" content="{{ . }}" />{{ end }}{{ end }}
-{{- end }}{{ end }}
-
-{{- /* Facebook Page Admin ID for Domain Insights */}}
-{{- with .Site.Social.facebook_admin }}<meta property="fb:admins" content="{{ . }}" />{{ end }}
-
-

layouts/partials/twitter_cards.html

@@ -1,42 +0,0 @@
-<!--
-Import Hugo's internal twitter_cards.html template to add support for resolving
-images in page bundles and with falling back to the default of looking in the
-static assets directory.
-
-See: tpl/tplimpl/embedded/templates/twitter_cards.html
-See: https://github.com/gohugoio/hugo/issues/5078
--->
-{{- with $.Params.images -}}
-<meta name="twitter:card" content="summary_large_image"/>
-{{/* try to get the image from the page bundle */}}
-{{- with $.Page.Resources.GetMatch (printf "*%s*" .) -}}
-<meta name="twitter:image" content="{{ .Permalink }}"/>
-{{- else -}}
-<meta name="twitter:image" content="{{ index . 0 | absURL }}"/>
-{{- end -}}
-{{ else -}}
-{{- $images := $.Resources.ByType "image" -}}
-{{- $featured := $images.GetMatch "*feature*" -}}
-{{- if not $featured }}{{ $featured = $images.GetMatch "{*cover*,*thumbnail*}" }}{{ end -}}
-{{- with $featured -}}
-<meta name="twitter:card" content="summary_large_image"/>
-<meta name="twitter:image" content="{{ $featured.Permalink }}"/>
-{{- else -}}
-{{- with $.Site.Params.images -}}
-<meta name="twitter:card" content="summary_large_image"/>
-<meta name="twitter:image" content="{{ index . 0 | absURL }}"/>
-{{ else -}}
-<meta name="twitter:card" content="summary"/>
-{{- end -}}
-{{- end -}}
-{{- end }}
-<meta name="twitter:title" content="{{ .Title }}"/>
-<meta name="twitter:description" content="{{ with .Description }}{{ . }}{{ else }}{{if .IsPage}}{{ .Summary }}{{ else }}{{ with .Site.Params.description }}{{ . }}{{ end }}{{ end }}{{ end -}}"/>
-{{ with .Site.Social.twitter -}}
-<meta name="twitter:site" content="@{{ . }}"/>
-{{ end -}}
-{{ range .Site.Authors }}
-{{ with .twitter -}}
-<meta name="twitter:creator" content="@{{ . }}"/>
-{{ end -}}
-{{ end -}}