Re-enable pygments and add copy-code button

themes/archie/layouts/partials/footer.html

@@ -11,6 +11,9 @@
   <div class="footer-info">
     {{ dateFormat "2006" now }} {{ with .Site.Copyright }} {{ . }} {{ end }}
   </div>
+  {{ if (findRE "<pre" .Content 1) }}
+  <script src="/js/copy-code-button.js"></script>
+  {{ end }}
 </footer>
 {{ if not .Site.IsServer }} {{ template "_internal/google_analytics.html" . }}
 {{ end }} {{- if (isset .Site.Params "social") -}}

themes/archie/layouts/partials/head.html

@@ -14,4 +14,10 @@
   <span id="dark-mode-toggle" onclick="toggleTheme()"></span>
   <script src="{{ .Site.BaseURL }}js/themetoggle.js"></script>
   {{ end }}
+  {{ if (findRE "<pre" .Content 1) }}
+
+    {{ $copyCss := resources.Get "css/copy-code-button.css" | minify }}
+    <link href="{{ $copyCss.RelPermalink }}" rel="stylesheet">
+{{ end }}
+
 </header>