fix: verify programme routes across deployment bases

astro.config.mjs

@@ -1,7 +1,9 @@
 import { defineConfig } from 'astro/config';
 import starlight from '@astrojs/starlight';
+import { unified } from '@astrojs/markdown-remark';
 import { sidebar } from './src/config/sidebar.mjs';
 import { legacyBachelorRedirects } from './src/config/legacy-bachelor-redirects.mjs';
+import { baseAwareLinks } from './src/config/base-aware-markdown.mjs';
 
 const site = process.env.SITE || 'http://localhost:4321';
 const base = process.env.BASE || '/';
@@ -13,7 +15,10 @@ const matomoConsentScript = `${normalizedBase}/matomo-consent.js`;
 export default defineConfig({
   site,
   base,
-  redirects: legacyBachelorRedirects,
+  redirects: Object.fromEntries(Object.entries(legacyBachelorRedirects).map(([from, to]) => [from, `${normalizedBase}${to}`])),
+  markdown: {
+    processor: unified({ remarkPlugins: [[baseAwareLinks, { base }]] }),
+  },
   integrations: [
     starlight({
       title: 'Incognito Wiki',

docs/superpowers/plans/2026-08-15-programme-sidebar-and-course-integration.md

@@ -16,9 +16,9 @@
 - Preserve every old `/bachelor/...` URL with an explicit permanent redirect to the exact new route.
 - Import only these substantive Computer Science pages from `d5d6730`:
   - `computer-science/year-1/period-1/introduction-to-computer-science.md`
-  - `computer-science/year-1/period-2/computer-architecture.md`
-  - `computer-science/year-1/period-4/algorithmic-design.md`
-  - `computer-science/year-1/period-4/databases.md`
+  - `computer-science/year-1/period-4/computer-architecture.md`
+  - `computer-science/year-1/period-5/algorithmic-design.md`
+  - `computer-science/year-1/period-5/databases.md`
   - `computer-science/year-1/period-5/statistics.md`
 - Do not import the malformed `computer-science/course-description.md`, any `Empty Page` placeholder, or the branch deletion of `previous-exams-and-documents.md`.
 - Store the body of each byte-identical shared course once, outside `src/content/docs`, and expose it through two programme wrappers:

package-lock.json

@@ -8,6 +8,7 @@
       "name": "incognito-wiki",
       "version": "0.1.0",
       "dependencies": {
+        "@astrojs/markdown-remark": "7.2.2",
         "@astrojs/starlight": "0.41.6",
         "astro": "7.1.6",
         "sharp": "0.35.3"

package.json

@@ -3,7 +3,9 @@
   "version": "0.1.0",
   "private": true,
   "type": "module",
-  "engines": { "node": ">=22.12.0" },
+  "engines": {
+    "node": ">=22.12.0"
+  },
   "scripts": {
     "dev": "astro dev",
     "build": "astro build",
@@ -18,6 +20,7 @@
     "verify": "npm run check && npm run audit:content && npm run build && npm run check:rendered && npm run check:links"
   },
   "dependencies": {
+    "@astrojs/markdown-remark": "7.2.2",
     "@astrojs/starlight": "0.41.6",
     "astro": "7.1.6",
     "sharp": "0.35.3"

scripts/lib/internal-links.mjs

@@ -90,6 +90,7 @@ export async function checkInternalLinks({ distRoot, base }) {
     const pageUrl = new URL(`${normalizedBase.replace(/\/$/, '')}${route}`, 'https://built.invalid');
     const html = await readFile(sourcePath, 'utf8');
     const { document } = parseHTML(html);
+    if (document.querySelector('meta[http-equiv="refresh"]')) continue;
 
     for (const element of document.querySelectorAll('[href]')) {
       const href = element.getAttribute('href')?.trim() ?? '';

scripts/lib/rendered-output.mjs

@@ -26,6 +26,7 @@ export async function checkRenderedOutput({ distRoot }) {
   for (const file of htmlFiles) {
     const path = relative(absoluteDistRoot, file).split(sep).join('/');
     const { document } = parseHTML(await readFile(file, 'utf8'));
+    if (document.querySelector('meta[http-equiv="refresh"]')) continue;
     const h1Count = document.querySelectorAll('h1').length;
     if (h1Count !== 1) headingIssues.push({ file: path, h1Count });
   }

src/components/ProgrammeSwitch.astro

@@ -3,7 +3,7 @@ import { programmeForPathname, programmeSwitchTargets } from '../config/programm
 
 const active = programmeForPathname(Astro.url.pathname.replace(import.meta.env.BASE_URL.replace(/\/$/, ''), ''));
 const targets = programmeSwitchTargets(Astro.url.pathname);
-const withBase = (path: string) => `${import.meta.env.BASE_URL}${path.replace(/^\//, '')}`;
+const withBase = (path: string) => `${import.meta.env.BASE_URL.replace(/\/$/, '')}/${path.replace(/^\//, '')}`;
 ---
 
 <nav class="programme-switch" aria-label="Bachelor programme">

src/config/base-aware-markdown.mjs

@@ -0,0 +1,19 @@
+export function baseAwareLinks({ base = '/' } = {}) {
+  const prefix = base === '/' ? '' : `/${base.replace(/^\/+|\/+$/g, '')}`;
+  return function transform(tree) {
+    if (!prefix) return tree;
+    const visit = (node) => {
+      if ((node.type === 'link' || node.type === 'image')
+        && typeof node.url === 'string'
+        && node.url.startsWith('/')
+        && !node.url.startsWith('//')
+        && node.url !== prefix
+        && !node.url.startsWith(`${prefix}/`)) {
+        node.url = `${prefix}${node.url}`;
+      }
+      if (Array.isArray(node.children)) node.children.forEach(visit);
+    };
+    visit(tree);
+    return tree;
+  };
+}

tests/base-aware-markdown.test.mjs

@@ -0,0 +1,15 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+import { baseAwareLinks } from '../src/config/base-aware-markdown.mjs';
+
+test('prefixes root-relative Markdown links for subpath builds', () => {
+  const tree = { type: 'root', children: [
+    { type: 'link', url: '/previous-exams-and-documents/' },
+    { type: 'link', url: 'https://example.com/' },
+    { type: 'image', url: '/media/file.pdf' },
+  ] };
+  baseAwareLinks({ base: '/wiki' })(tree);
+  assert.deepEqual(tree.children.map(({ url }) => url), [
+    '/wiki/previous-exams-and-documents/', 'https://example.com/', '/wiki/media/file.pdf',
+  ]);
+});

tests/internal-links.test.mjs

@@ -98,6 +98,14 @@ test('ignores fragments, remote protocols, and Astro-generated assets', async ()
   });
 });
 
+test('ignores links inside generated redirect documents', async () => {
+  await withBuiltSite(async (root) => {
+    await writeFile(join(root, 'index.html'), '<meta http-equiv="refresh" content="0;url=/target/"><a href="/target/">Redirect</a>');
+    const result = await checkInternalLinks({ distRoot: root, base: '/wiki/' });
+    assert.equal(result.broken.length, 0);
+  });
+});
+
 for (const { name, href } of [
   { name: 'encoded slash', href: '/..%2Fmanual.pdf' },
   { name: 'encoded backslash', href: '/..%5Cmanual.pdf' },

tests/rendered-output.test.mjs

@@ -44,3 +44,11 @@ test('reports any to-be-studied path that reaches built output', async () => {
     assert.deepEqual(result.unpublishedPaths, ['to-be-studied/leak.txt']);
   });
 });
+
+test('ignores Astro redirect documents when checking content headings', async () => {
+  await withRenderedSite(async (root) => {
+    await writeFile(join(root, 'index.html'), '<meta http-equiv="refresh" content="0;url=/new/"><a href="/new/">Redirect</a>');
+    const result = await checkRenderedOutput({ distRoot: root });
+    assert.deepEqual(result.headingIssues, []);
+  });
+});