From 4ef42a15b2f0e8ffdefd1f9cddc5fd4dc4f26806 Mon Sep 17 00:00:00 2001
From: willstocks <43744514+willstocks@users.noreply.github.com>
Date: Fri, 3 Apr 2020 10:59:22 +0100
Subject: [PATCH] Implement multi-layer fallback
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Cover image for anything that's not home (with fallback to favicon where cover is not set), and for anything that is home we use the favicon with fallback to the default color block

Co-Authored-By: Radek Kozieł <radoslaw.koziel@gmail.com>
---
 layouts/partials/head.html | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/layouts/partials/head.html b/layouts/partials/head.html
index 03e93ed..98f284e 100644
--- a/layouts/partials/head.html
+++ b/layouts/partials/head.html
@@ -40,7 +40,15 @@
 <meta property="og:description" content="{{ if .IsHome }}{{ $.Site.Params.Subtitle }}{{ else if .Description}}{{ .Description | plainify }}{{ else }}{{ .Summary | plainify }}{{ end }}" />
 <meta property="og:url" content="{{ .Permalink }}" />
 <meta property="og:site_name" content="{{ .Title }}" />
-<meta property="og:image" content="{{ if .IsHome }}{{ $.Site.Params.favicon | absURL }}{{else}}{{ isset .Params "cover" | absURL }}{{ end }}">
+{{ if and (ne .IsHome) (isset .Params "cover") }}
+  <meta property="og:image" content="{{ .Param "cover" | absURL }}">
+{{ else }}
+  {{ if isset $.Site.Params "favicon" }}
+    <meta property="og:image" content="{{ $.Site.Params.favicon | absURL }}">
+  {{ else }}
+    <meta property="og:image" content="{{ printf "img/favicon/%s.png" $.Site.Params.ThemeColor | absURL }}">
+  {{ end }}
+{{ end }}
 <meta property="og:image:width" content="2048">
 <meta property="og:image:height" content="1024">
 {{ range .Params.categories }}