Fix listing feed image size depending on the render directory

news/changelog-1.11.md

@@ -79,6 +79,7 @@ All changes included in 1.11:
 - ([#14974](https://github.com/quarto-dev/quarto-cli/issues/14974)): Fix math in `.llms.md` files from `llms-txt` coming out garbled with the default `mathjax` method, and with `katex` and `webtex`. Math is now written as `$...$` and `$$...$$` with the `mathjax`, `katex`, `webtex` and `mathml` methods.
 - ([#15004](https://github.com/quarto-dev/quarto-cli/issues/15004)): Fix notebook preview pages and notebook sources missing from the output directory when a website with embedded notebooks is rendered from a directory other than the project directory.
 - ([#15022](https://github.com/quarto-dev/quarto-cli/issues/15022)): Fix rendering a listing with a `feed` failing on Windows with `os error 123` when a listing item's `image` or the feed `image` is a web URL. The image URL is used as is in the feed and no local size lookup is attempted. (author: @Masad791)
+- ([#15032](https://github.com/quarto-dev/quarto-cli/pull/15032)): Fix the listing feed `image` missing its height and width when a website is rendered from a directory other than the project directory, or when the image path starts with `/`.
 
 ## Lua API
 

src/project/types/website/listing/website-listing-feed.ts

@@ -175,7 +175,10 @@ export async function createFeed(
       link: link,
       url: absoluteUrl(siteUrl, image),
     };
-    const size = isAbsoluteRef(image) ? undefined : imageSize(image);
+    // Read the size from the project file the url points at, not the cwd
+    const size = isAbsoluteRef(image)
+      ? undefined
+      : imageSize(join(project.dir, image));
     if (size) {
       const [height, width] = feedImageSize(size.height, size.width);
       feed.image.height = height;

tests/docs/listings-feed-image/.gitignore

@@ -0,0 +1,4 @@
+/.quarto/
+_site/
+
+**/*.quarto_ipynb

tests/docs/listings-feed-image/_quarto.yml

@@ -0,0 +1,7 @@
+project:
+  type: website
+
+website:
+  title: "listings-feed-image"
+  site-url: https://example.com
+  image: feed.png

tests/docs/listings-feed-image/archive/index.qmd

@@ -0,0 +1,7 @@
+---
+title: "Feed image from the site"
+listing:
+  feed: true
+---
+
+This listing sets no image, so the feed falls back to the site `image`.

tests/docs/listings-feed-image/archive/post.qmd

@@ -0,0 +1,6 @@
+---
+title: "An archived post"
+date: "2026-10-12"
+---
+
+A post listed by the archive feed.

tests/docs/listings-feed-image/index.qmd

@@ -0,0 +1,9 @@
+---
+title: "Feed image from the listing option"
+listing:
+  contents: posts
+  feed:
+    image: feed.png
+---
+
+The feed image comes from the listing `feed: image:` option.

tests/docs/listings-feed-image/posts/post.qmd

@@ -0,0 +1,6 @@
+---
+title: "A post"
+date: "2026-10-12"
+---
+
+A post listed by the root feed.

tests/docs/listings-feed-image/updates/index.qmd

@@ -0,0 +1,8 @@
+---
+title: "Feed image with a leading slash"
+listing:
+  feed:
+    image: /feed.png
+---
+
+The feed image is given relative to the project root with a leading `/`.

tests/docs/listings-feed-image/updates/post.qmd

@@ -0,0 +1,6 @@
+---
+title: "An update"
+date: "2026-10-12"
+---
+
+A post listed by the updates feed.

tests/smoke/site/render-listing-feed-image.test.ts

@@ -0,0 +1,40 @@
+/*
+ * render-listing-feed-image.test.ts
+ *
+ * Copyright (C) 2026 Posit Software, PBC
+ */
+import { join } from "../../../src/deno_ral/path.ts";
+import { removeIfExists } from "../../../src/core/path.ts";
+import { testQuartoCmd, Verify } from "../../test.ts";
+import { docs } from "../../utils.ts";
+import { ensureFileRegexMatches, noErrorsOrWarnings } from "../../verify.ts";
+
+// The project is rendered from the test cwd, not from its own directory, so
+// the feed image size must be read relative to the project, not the cwd.
+const projectDir = docs("listings-feed-image");
+const outputDir = join(projectDir, "_site");
+
+// feed.png is 600x400, scaled down to fit the RSS 144px maximum width.
+const feedImage = [
+  /<image>\s*<url>https:\/\/example\.com\/feed\.png<\/url>/,
+  /<height>96<\/height>\s*<width>144<\/width>\s*<\/image>/,
+];
+
+const verify: Verify[] = [
+  noErrorsOrWarnings,
+  // Listing `feed: image:` option
+  ensureFileRegexMatches(join(outputDir, "index.xml"), feedImage),
+  // Site `image` fallback
+  ensureFileRegexMatches(join(outputDir, "archive", "index.xml"), feedImage),
+  // Project-relative path with a leading slash
+  ensureFileRegexMatches(join(outputDir, "updates", "index.xml"), feedImage),
+];
+
+testQuartoCmd("render", [projectDir], verify, {
+  name: "Listing feed image size is read relative to the project",
+  teardown: () => {
+    removeIfExists(outputDir);
+    removeIfExists(join(projectDir, ".quarto"));
+    return Promise.resolve();
+  },
+});