feat: added support for additional image formats in build-rss.js (#3396)

Co-authored-by: Ansh Goyal <[email protected]>

scripts/build-rss.js

@@ -63,6 +63,18 @@ module.exports = async function rssFeed(type, title, desc, outputPath) {
       throw new Error(`Missing required fields in posts: ${invalidPosts.map(p => p.title || p.slug).join(', ')}`);
     }
 
+    const mimeTypes = {
+      '.jpeg': 'image/jpeg',
+      '.jpg': 'image/jpeg',
+      '.png': 'image/png',
+      '.svg': 'image/svg+xml',
+      '.webp': 'image/webp',
+      '.gif': 'image/gif',
+      '.bmp': 'image/bmp',
+      '.tiff': 'image/tiff',
+      '.ico': 'image/x-icon'
+    };
+
     for (let post of posts) {
       const link = `${base}${post.slug}${tracking}`;
       const { title, excerpt, date } = post;
@@ -78,17 +90,13 @@ module.exports = async function rssFeed(type, title, desc, outputPath) {
         pubDate
       };
       if (post.cover) {
-        const enclosure = {};
-        enclosure["@url"] = base + post.cover;
-        enclosure["@length"] = 15026; // dummy value, anything works
-        enclosure["@type"] = 'image/jpeg';
-        if (typeof enclosure["@url"] === 'string') {
-          let tmp = enclosure["@url"].toLowerCase();
-          if (tmp.indexOf('.png') >= 0) enclosure["@type"] = 'image/png';
-          if (tmp.indexOf('.svg') >= 0) enclosure["@type"] = 'image/svg+xml';
-          if (tmp.indexOf('.webp') >= 0) enclosure["@type"] = 'image/webp';
-        }
-        item.enclosure = enclosure;
+        const fileExtension = post.cover.substring(post.cover.lastIndexOf('.')).toLowerCase();
+        const mimeType = mimeTypes[fileExtension] || 'image/jpeg';
+        item.enclosure = {
+          "@url": base + post.cover,
+          "@length": 15026, // dummy value, anything works
+          "@type": mimeType
+        };
       }
       rss.channel.item.push(item)
     }