graphviz: allow overriding the engine

dscho · dscho · commit 8e03288e6c46 · 2025-09-07T14:36:14.000+02:00
This can be done like so:

  {{&lt; graphviz engine="neato" &gt;}}

Signed-off-by: Johannes Schindelin &lt;johannes.schindelin@gmx.de&gt;
diff --git a/assets/js/application.js b/assets/js/application.js
@@ -791,6 +791,7 @@ var Graphviz = {
         graphAttributes: {
           bgcolor: "transparent",
         },
+        engine: x.getAttribute("engine") || "dot",
       }
       const svg = vizInstance.renderSVGElement(x.innerText, options)
       svg.classList.add("graphviz")
diff --git a/layouts/shortcodes/graphviz.html b/layouts/shortcodes/graphviz.html
@@ -1,4 +1,4 @@
-<pre class="graphviz">
+<pre class="graphviz"{{ if (ne "" (.Get "engine")) }} engine="{{(.Get "engine")}}"{{ end }}>
   {{ .Inner | htmlEscape | safeHTML }}
 </pre>
 {{ .Page.Store.Set "hasGraphviz" true }}

Original file line number	Diff line number	Diff line change
`@@ -791,6 +791,7 @@ var Graphviz = {`
`791`	`791`	`graphAttributes: {`
`792`	`792`	`bgcolor: "transparent",`
`793`	`793`	`},`
	`794`	`+ engine: x.getAttribute("engine") \|\| "dot",`
`794`	`795`	`}`
`795`	`796`	`const svg = vizInstance.renderSVGElement(x.innerText, options)`
`796`	`797`	`svg.classList.add("graphviz")`