Pamela Chia 9ae6e54dd5 fix(www): exclude redirected slugs from generated markdown (#48476)
11 of the generated `MD_PAGES` entries are blog slugs whose HTML pages
308-redirect away via `apps/www/lib/redirects.js` before any `<head>`
renders. They can never carry an alternate tag and Accept negotiation
never fires (Next.js `redirects()` runs before middleware), so their
`.md` siblings are orphaned content reachable only by guessing the
suffixed URL. Six of them duplicate live, correctly-tagged pages
(`/customers/*`, `/pricing`).

**Changed:**
- `generateMdContent.mjs` derives an exclusion set from
`lib/redirects.js` at generation time: any unconditional exact-match
redirect source (wildcard/param patterns and conditional `has`/`missing`
redirects are skipped) drops the matching slug from both `MD_CONTENT`
and `MD_PAGES`. The build log names every excluded slug, currently the
11 known ones.
- Self-maintaining by design (per the decision recorded on the issue): a
future redirected post auto-excludes on the next build, and removing a
redirect brings its `.md` sibling back. The MDX sources stay in the
repo; nothing is deleted.
- Effect on the 11 slugs: alternate tags stay absent (nothing rendered
them anyway), and explicit `.md` URLs go from serving orphaned markdown
to 404, the same external effect deletion would have had.

## To test

Tested locally:
- [x] `node scripts/generateMdContent.mjs` logs `🚫 Excluded 11
redirected slugs: ...` naming exactly the 11 known slugs; output drops
483 → 472 pages
- [x] Generated file carries no MD_CONTENT/MD_PAGES key for any excluded
slug (raw URL mentions inside other posts' bodies remain, as expected)
- [x] `apps/www` vitest: 71/71 (GROWTH-1013 drift tests unaffected)

Post-merge:
- [ ] `https://supabase.com/blog/case-study-xendit.md` returns 404
(previously 200 orphaned markdown); `https://supabase.com/pricing.md`
still 200

## Linear
- fixes GROWTH-1022


<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

* **Bug Fixes**
* Excluded content with valid exact-path redirects from generated
documentation.
  * Preserved content associated with conditional or wildcard redirects.
* Updated generated page counts and output statistics to reflect the
filtered content.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->
2026-08-20 15:23:13 +08:00
2025-06-17 11:08:46 +02:00
2026-06-30 14:03:40 +02:00
2024-01-10 13:34:41 +01:00
2021-07-25 12:45:26 +08:00
2026-08-20 12:26:31 +08:00

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