add tella theme

themes/tella/layouts/partials/seo/extend.html

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+{{/* 
+	Add/Edit SEO Scratch Object
+	
+	@author The New Dynamic
+	
+	@access public
+
+	@context Page 
+
+	User does not load the partial, as the component will. 
+	This allows to overwrite some SEO object keys with project's own.
+	Project's partial should live under `layouts/partials/seo/extend.html`
+
+	@example - In Partial
+		{{- if eq "Type" "recipe" -}}
+		{{- .Scratch.SetInMap "seo" "type" "article" -}}
+		{{- end -}}
+
+		{{- $locales := dict "fr" "fr_FR" "en" "en_US" -}}
+		{{- .Scratch.SetInMap "seo" "locale" (index $locales .Lang) -}}
+
+		{{- if .IsHome -}}
+		{{- .Scratch.SetInMap "seo" "title" "Welcome Home" -}}
+		{{- end -}}
+ */}}

themes/tella/layouts/partials/seo/print.html

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+{{- $.Scratch.Set "seo" dict -}}
+
+{{/* 日付 */}}
+{{- if not .PublishDate.IsZero -}}
+{{- $.Scratch.SetInMap "seo" "published_time" (.PublishDate.Format "2006-01-02T15:04:05-07:00") -}}
+{{- else if not .Date.IsZero -}}
+{{- $.Scratch.SetInMap "seo" "published_time" (.Date.Format "2006-01-02T15:04:05-07:00") -}}
+{{- end -}}
+{{- if not .Lastmod.IsZero -}}
+{{- $.Scratch.SetInMap "seo" "updated_time" (.Lastmod.Format "2006-01-02T15:04:05-07:00") -}}
+{{- end -}}
+
+ 
+{{/* 説明 */}}
+{{ $description := "" }}
+{{/* 1. SEO Description */}}
+{{- if .Params.seo.description -}}
+	{{- $description = .Params.seo.description -}}
+{{/* 2. Description
+	    As it could potentially contain HTML tags, we strip them with plainify */}}
+{{- else if .Params.description -}}
+	{{- $description = .Params.description | plainify -}}
+{{/* 3. Summary  */}}
+{{- else if .Summary -}}
+	{{- $description = substr .Summary 0 60 | plainify -}}
+{{- else -}}
+{{/* 4. site description  */}}
+	{{ $description = .Site.Params.Description }}
+{{- end -}}
+
+{{- $.Scratch.SetInMap "seo" "description" $description -}}
+
+{{/* サイト名 */}}
+{{- with .Param "seo.site_name" -}}
+	{{- $.Scratch.SetInMap "seo" "site_name" . -}}
+{{- else -}}
+	{{- $.Scratch.SetInMap "seo" "site_name" .Site.Title -}}
+{{- end -}}
+
+{{/* Twitter */}}
+{{/* Default twitter_card is "summary_large_image" */}}
+{{- $.Scratch.SetInMap "seo" "twitter_card" "summary_large_image" -}}
+
+{{/* We check the site config sports a Social.twitter and use as handle */}}
+{{- with .Site.Social.twitter -}}
+	{{- $.Scratch.SetInMap "seo" "twitter_handle" (printf "@%s" .) -}}
+{{- end -}}
+
+{{/* 種類 */}}
+{{- $.Scratch.SetInMap "seo" "type" "website" -}}
+
+{{- if in (slice "blog" "news") .Type -}}
+	{{- $.Scratch.SetInMap "seo" "type" "article" -}}
+{{ else if in (slice "article") .Type }}
+	{{- $.Scratch.SetInMap "seo" "type" "event" -}}
+{{- end -}}
+
+{{/* 言語 */}}
+{{- $.Scratch.SetInMap "seo" "locale" "ja_JP" -}}
+
+{{/* Canonical */}}
+{{ with .Params.seo.canonical }}
+  {{- $.Scratch.SetInMap "seo" "canonical" (. | absURL) -}}
+{{ else }}
+{{- $.Scratch.SetInMap "seo" "canonical" .Permalink -}}
+{{ end }}
+
+{{- partial "seo/extend" . -}}
+
+{{ partial "seo/tags" (dict "page" $ "seo" ($.Scratch.Get "seo")) }}
+{{ with .Site.Params.seo.jsonld }}
+	{{ partial "seo/jsonld" (dict "page" $ "seo" ($.Scratch.Get "seo")) }}
+{{ end }}
+
+{{ with .Site.Params.seo.debug }}
+	{{ partial "seo/debug" $ }}
+{{ end }}
+
+{{ if .Params.image }}
+    {{ with .Params.image }}
+<meta property="og:image" content="{{ . | absURL }}">
+<meta property="og:image:url" content="{{ . | absURL }}">
+    {{ end }}
+{{ else }}
+<meta property="og:image" content="{{ .Site.Params.og_image | absURL }}">
+<meta property="og:image:url" content="{{ .Site.Params.og_image | absURL }}">
+{{ end }}

themes/tella/layouts/partials/seo/tags.html

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+{{- $seo := .seo -}}
+<meta name="description" content="{{ $seo.description }}">
+<meta property="og:title" content="{{ .Title }} | {{ .Site.Title }}" />
+<meta property="og:site_name" content="{{ $seo.site_name }}">
+<meta property="og:description" content="{{ $seo.description }}">
+<meta property="og:url" content="{{ .page.Permalink }}">
+<meta property="og:type" content="{{ $seo.type }}">
+<meta property="og:locale" content="{{ $seo.locale }}">
+<meta name="twitter:card" content="{{ $seo.twitter_card }}">
+<meta name="twitter:site" content="@tech_chiba">
+{{ with $seo.canonical }}
+<link rel="canonical" href="{{ . }}">
+{{ end }}
+<meta name="twitter:description" content="{{- $seo.description }}">
+<meta property="article:published_time" content="{{- $seo.published_time }}">
+{{- with $seo.updated_time }}
+<meta property="article:updated_time" content="{{- $seo.updated_time }}">
+{{- end }}