Merging upstream version 5.3.0+dfsg.

Signed-off-by: Daniel Baumann <daniel@debian.org>

site/layouts/shortcodes/scss-docs.html

@@ -39,5 +39,38 @@
     {{- $match = replace $match " !default" "" -}}
   {{- end -}}
 
-  {{- highlight $match "scss" "" -}}
+  <div class="bd-example-snippet bd-code-snippet bd-file-ref">
+    <div class="d-flex align-items-center highlight-toolbar ps-3 pe-2 py-1 border-bottom">
+      <a class="font-monospace link-secondary link-underline-secondary link-underline-opacity-0 link-underline-opacity-100-hover small" href="{{ .Site.Params.repo }}/blob/v{{ .Site.Params.current_version }}/{{ $file | replaceRE `\\` "/" }}">
+        {{- $file -}}
+      </a>
+      <div class="d-flex ms-auto">
+        <button type="button" class="btn-clipboard mt-0 me-0" title="Copy to clipboard">
+          <svg class="bi" aria-hidden="true"><use xlink:href="#clipboard"/></svg>
+        </button>
+      </div>
+    </div>
+    {{- $unindent := 0 -}}
+    {{- $found := false -}}
+    {{- $first_line:= index (split $match "\n") 0 -}}
+    {{- range $char := split $first_line "" -}}
+      {{- if and (eq $char " ") (not $found) -}}
+        {{- $unindent = add $unindent 1 -}}
+      {{- else -}}
+        {{- $found = true -}}
+      {{- end -}}
+    {{- end -}}
+    {{- $output := "" -}}
+    {{- if (gt $unindent 0) -}}
+      {{- $prefix := (strings.Repeat $unindent " ") -}}
+      {{- range $line := split $match "\n" -}}
+        {{- $line = strings.TrimPrefix $prefix $line -}}
+        {{ $output = printf "%s%s\n" $output $line }}
+      {{- end -}}
+      {{- $output = chomp $output -}}
+    {{- else -}}
+      {{- $output = $match -}}
+    {{- end -}}
+    {{- highlight $output "scss" "" -}}
+  </div>
 {{- end -}}