From 393f1f4012ea229f7e335b3859ae8eaa10eba0a8 Mon Sep 17 00:00:00 2001
From: Martijn <1958780+MartenBE@users.noreply.github.com>
Date: Sun, 5 Nov 2023 20:44:46 +0100
Subject: [PATCH] --static now also copies background images (#461)

---
 lib/static.js | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/lib/static.js b/lib/static.js
index 3329819..35da587 100644
--- a/lib/static.js
+++ b/lib/static.js
@@ -20,6 +20,7 @@ const featuredSlide = require('./featured-slide');
 const files = new Set();
 
 const htmlImageRE = /<img.+src=["'](.+?)["'](?:.+?)>/g;
+const htmlImageBackgroundRE = /data-background-image=["'](.+?)["']/g;
 
 const relativeDir = (from, to) => path.relative(from, to).replace(/^\.\./, '.');
 
@@ -71,9 +72,12 @@ const copyAssetsAndWriteFile = async (sourceDir, file, targetDir) => {
   const base = relativeDir(file, '.');
   const markup = await renderFile(path.join(sourceDir, file), { base });
 
-  let image;
   const html = md.marked(markdown.toString());
-  while ((image = htmlImageRE.exec(html))) {
+  const images = html.matchAll(htmlImageRE);
+  const backgroundImages = html.matchAll(htmlImageBackgroundRE);
+  const allImages = [...images, ...backgroundImages];
+
+  for (let image of allImages) {
     const [, imgPath] = image;
     if (!isAbsoluteURL(imgPath)) {
       const relPath = path.join(path.dirname(file), imgPath);