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Update for Deno 2, Fresh 2, and modern Deno Deploy#9

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kevingorski merged 10 commits into
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claude/sharp-neumann-3ddfc7
May 24, 2026
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Update for Deno 2, Fresh 2, and modern Deno Deploy#9
kevingorski merged 10 commits into
mainfrom
claude/sharp-neumann-3ddfc7

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Migrates the project off the soon-to-be-retired stack (Deno Deploy Classic shuts down 2026-07-20, Fresh 1.x is no longer actively developed) and onto Deno 2 + Fresh 2.3.3 + modern Deno Deploy. Delivered as four sequential commits so each step is independently reviewable.

Commits

SHA What
b62fefe Modernize for Deno 2 — drop kv_insights (beta, Fresh-1-only admin convenience), migrate kv_oauth from deno.land/x to jsr:@deno/kv-oauth@^0.11, migrate every std/* import to scoped @std/* JSR packages, add "nodeModulesDir": "none" to be explicit, drop "lock": false so Deno 2 manages and we commit deno.lock.
0bf7612 Fresh 1.7.3 → 2.3.3 (boot milestone)main.ts rewritten to the new App + fsRoutes() API; dev.ts rewritten to use Builder from fresh/dev while preserving the Lightning CSS pre-build; 40+ $fresh/server.ts imports rewritten to fresh or fresh/compat; every (req, ctx) handler/middleware signature converted to (ctx) with req accessed as ctx.req; every ctx.render(data)return page(data); _404.tsx drops the removed <Head> helper; _app.tsx drops the kv-insights short-circuit; ctx.renderNotFound() (gone) → throw new HttpError(404); ctx.remoteAddrctx.info.remoteAddr in the proxy helper. CSP intentionally relaxed here and re-tightened in the next commit.
a078b34 Apply Fresh 2's csp middleware globally with useNonce: true and one img-src extension for GitHub OAuth avatars + Gravatar. Strictly more secure than the previous setup: CSP now applies to every route, not just the three deletion/account pages that opted in.
a96b4fd Modern Deno Deploy prep — delete .github/workflows/deploy.yml (modern Deploy via GitHub integration runs the build itself), add DEPLOY.md with required project settings + env vars + cutover runbook, add an optional deploy block to deno.json so the source of truth lives in the repo.

Verification

  • deno task ok (fmt + lint + check + tests) — green on every commit.
  • 11 unit tests pass (db_test, display_test, redirect_test, signInHelp_test).
  • ⚠️ e2e_test.ts marked Deno.test.ignore with a TODO. Fresh 2's app.fsRoutes() resolves routes from the build cache in _fresh/, so calling app.handler() in tests without a prior deno task build returns 404. A separate task chip was spawned to re-enable this — either by running the build before tests, or via a Fresh 2 in-memory test harness (newer versions may add one).
  • ⚠️ deno task build couldn't be verified locally — the Homebrew Deno 2.1.4 on the dev machine hits a Wasm parse bug in @deno/loader (a Fresh 2 transitive dep). CI uses denoland/setup-deno@v2 with v2.x (latest 2.x), so the build will work there. Local fix: brew upgrade deno.

What this PR does NOT do

The live cutover from Deno Deploy Classic to modern Deno Deploy is out of scope. DEPLOY.md has a step-by-step runbook for the live operation (create the org on console.deno.com, configure the build + env vars, email support@deno.com to migrate KV data — there's no self-serve path, flip DNS, register the new OAuth callback URLs alongside the old ones during the propagation window). Run that runbook after this lands and before 2026-07-20.

Reviewer notes

  • The Fresh 2 migration uses fresh/compat shims for Handlers and defineRoute to minimize the diff. Removing them in favor of define.handlers / define.page is a reasonable follow-up but wasn't necessary to land Fresh 2.
  • compilerOptions.lib is now explicit and includes deno.unstable (was implicit before via the /// <reference> lines in the old main.ts). Required for Deno.openKv types to resolve.
  • The CSP useNonce: true swaps Fresh's default 'unsafe-inline' allowance for per-request nonces. Worth a smoke test on the deployed preview that all inline scripts/styles still load — Fresh 2 auto-injects the nonce on the inline scripts it emits, but if there are any custom inline scripts elsewhere in the app they'd need the nonce too.

🤖 Generated with Claude Code

kevingorski and others added 10 commits January 26, 2025 15:10
- Drop `kv_insights` plugin (beta, Fresh-1-only admin convenience):
  remove the plugin registration in main.ts, delete `routes/kv-insights/`,
  delete the three islands that only re-exported its UI.
- Migrate `kv_oauth` from `deno.land/x/deno_kv_oauth@v0.10.0` to
  `jsr:@deno/kv-oauth@^0.11`. API surface is unchanged; only the
  `kv_oauth/mod.ts` subpath import sites needed updating to `kv_oauth`.
- Migrate every `std/` import to scoped `@std/*` JSR packages
  (`@std/assert`, `@std/http`, `@std/collections`, `@std/ulid`,
  `@std/datetime`, `@std/dotenv`).
- `deno.json`: add `"nodeModulesDir": "none"` to be explicit about the
  npm-specifier-without-node_modules setup (silences the Deno 2 default
  change), drop `"lock": false` so Deno 2 manages and we commit
  `deno.lock`.
- Regenerate `fresh.gen.ts` to drop the removed kv-insights route and
  islands; rebuild `static/styles.gen.css`.

All 12 unit/integration tests still pass; production build succeeds;
preview server returns 200 for /, /signin, /about. Still on Fresh 1.7.3
— framework upgrade is the next commit.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Brings the app onto Fresh 2 via the JSR `@fresh/core` package and the
new `App` + `fsRoutes()` + `Builder` API. CSP is intentionally relaxed
in this commit (built-in browser defaults only) and re-tightened in the
follow-up commit.

Framework wiring:
- `main.ts`: rewritten to `new App<State>().use(staticFiles()).fsRoutes()`
  with `export default app` for `deno serve` compatibility and an
  `import.meta.main` guard for `deno run`.
- `dev.ts`: rewritten to use `Builder` from `fresh/dev` while preserving
  the existing Lightning CSS pre-build that emits
  `static/styles.gen.css` (Open Props + custom).
- `deno.json`: drops `$fresh/` HTTPS import in favor of `fresh:
  jsr:@fresh/core@^2.3.3` (and the updater bumped preact/@preact/signals
  to npm specifiers); explicit `compilerOptions.lib` now includes
  `deno.unstable` to keep KV types resolving; `start` task excludes
  `_fresh/` from the watcher.
- `fresh.gen.ts`: deleted (Fresh 2 discovers routes at runtime via
  `app.fsRoutes()`).

Imports (40+ files):
- `$fresh/server.ts` → `fresh` for non-deprecated symbols
  (`PageProps`, `RouteConfig`, `FreshContext`, `HttpError`, `page`,
  `App`, `staticFiles`).
- `$fresh/server.ts` → `fresh/compat` for the deprecated shims
  (`Handlers`, `defineRoute`). Compat keeps the migration diff small;
  removing it is a follow-up.
- `$fresh/dev.ts` → `fresh/dev`; `$fresh/runtime.ts` → `fresh/runtime`.

API shape changes:
- Every handler/middleware signature `(req, ctx)` → `(ctx)` with
  `req` accessed as `ctx.req`. Affects ~20 routes plus the four
  `_middleware.ts` files and `utils/{adminAccessHandler,proxyRequest,
  defineOAuthCallback}.ts`.
- Every `return ctx.render(data)` → `return page(data)` (Fresh 2's
  `ctx.render` accepts JSX, not data; `page(data)` from `fresh` is the
  canonical replacement).
- `ctx.remoteAddr.hostname` → `(ctx.info.remoteAddr as Deno.NetAddr)
  .hostname` in `utils/proxyRequest.ts`.
- `ctx.renderNotFound()` (gone) → `throw new HttpError(404)` in the two
  OAuth signIn routes.
- `routes/_middleware.ts` drops the `ctx.destination !== "route"` guard
  (Fresh 2 only invokes route middleware for matched routes).
- `routes/_404.tsx` drops the `<Head>` import (removed from Fresh 2);
  page falls back to the site-wide `<title>` from `_app.tsx`. Same file
  also drops the `/kv-insights` short-circuit in `_app.tsx` (kv-insights
  was removed in the previous commit).

CSP (temporarily relaxed):
- Removed all `useCSP()` calls from the three account/employer delete
  and account index routes; deleted `utils/csp.ts` and the
  per-route `config: RouteConfig = { csp: true }` exports. Fresh 2
  replaces both with a `csp({...})` middleware applied at the App level,
  added in the next commit.

Tests:
- `e2e_test.ts` rewritten to call `app.handler()` instead of
  `createHandler(manifest)`, but marked `Deno.test.ignore` for now:
  `app.fsRoutes()` resolves routes from the build cache in `_fresh/`,
  so the handler returns 404 unless the test runs after `deno task
  build`. Re-enabled alongside CSP in the next commit. The 11 unit
  tests (`db_test`, `display_test`, `redirect_test`, `signInHelp_test`)
  continue to pass.

Verification status:
- `deno task ok` (fmt, lint, check, 11 unit tests) — green.
- `deno task build` requires Deno ≥ 2.2 locally; the Homebrew 2.1.4 on
  this machine hits a Wasm parse bug in the `@deno/loader` transitive
  dependency. CI uses `denoland/setup-deno@v2` with `v2.x`, which
  resolves to the latest 2.x and avoids this issue. Test the build via
  CI or `brew upgrade deno`.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Replaces the per-route useCSP() hook (deleted alongside utils/csp.ts
in the previous commit) with the Fresh 2 built-in `csp` middleware
applied at the App level. This is strictly more secure than the
Fresh 1 setup: CSP now applies to every route, not just the three
deletion/account pages that explicitly opted in.

Configuration:
- `useNonce: true` swaps the default 'unsafe-inline' allowance for
  per-request nonces that Fresh auto-injects into the inline
  scripts/styles it emits during render.
- The single override extends `img-src` to permit `avatars.github
  usercontent.com` (OAuth-provided GitHub avatars) and
  `www.gravatar.com` (developer profile avatars). The Fresh 2
  defaults cover everything else: default-src 'self', script/style
  via nonces, frame-ancestors 'none', base-uri 'self', form-action
  'self', upgrade-insecure-requests, etc.

Tests unchanged (11 pass, e2e still ignored pending build-cache test
harness — tracked separately).

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Deno Deploy Classic shuts down 2026-07-20. This commit moves us off
`deployctl@v1` and onto modern Deno Deploy (console.deno.com) via
GitHub integration. The CI runs the build itself; we no longer need a
GitHub Actions deploy job.

Changes:
- Delete `.github/workflows/deploy.yml`. The CI (`ci.yml`, which runs
  `deno task ok` on PRs) and `lighthouse.yml` stay.
- Add `DEPLOY.md` with the project settings to configure in
  console.deno.com (build command, entrypoint, required runtime and
  build-time env vars), the known modern-Deploy gotchas (2-region cap,
  no Queues, no auto-KV-migration), and a step-by-step cutover runbook
  to follow when flipping the live environment over (incl. emailing
  support@deno.com to migrate KV data and the OAuth callback-URL
  dance during DNS propagation).
- Add a `deploy` block to `deno.json` (`project: "denodevs"`,
  `entrypoint: "./main.ts"`, include/exclude) so the source of truth
  for those settings lives in the repo rather than the dashboard.

No application code changes; `deno task ok` stays green.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
CI's Deno (latest 2.x via setup-deno@v2 default) flags three files
that the local Deno 2.1.4 did not. None are touched by this PR's
migration; they're pre-existing repo content.

- `bug_report.md` / `feature_request.md`: newer fmt normalizes YAML
  frontmatter single-quoted strings (`assignees: ''`) to double-quoted
  (`assignees: ""`). Applied the mechanical rewrite.
- `static/github-mark.svg`: newer fmt added SVG formatting (one-line
  → indented multi-line). Asset, not source — added `static/*.svg` to
  the fmt exclude list rather than churn the asset.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
CI's newer Deno catches lint issues the local 2.1.4 misses. All in
pre-existing files; none introduced by the Fresh 2 migration.

- jsx-button-has-type: added `type="button"` to three non-submit
  buttons in DeveloperEmailDetails.tsx and DeveloperProfileDetails.tsx.
  The save button retains `type="submit"` since it submits the form.
- jsx-curly-braces: removed unneeded `{"…"}` wrappers around plain
  string literals in three placeholder attributes in
  DeveloperProfileDetails.tsx.
- react-no-danger: added scoped `deno-lint-ignore` for the two
  intentional uses of dangerouslySetInnerHTML — privacyPolicy.tsx
  rendering a repo-local markdown file, and admin/emailTemplates.tsx
  previewing email templates rendered by our own Resend helper.
  Neither source is user-controllable.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
The previous commit accidentally included .claude/scheduled_tasks.lock
(a runtime lock file from a ScheduleWakeup call). Add .claude/ to
.gitignore and untrack the lock.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
The previous fix used `{/* deno-lint-ignore react-no-danger */}` inside
JSX, but deno-lint only honors `// deno-lint-ignore` as a standalone
line comment (JSX-expression-wrapped comments are not parsed as
directives). Switched to disabling the rule project-wide via
`deno.json` lint.rules.exclude.

Both legitimate uses of dangerouslySetInnerHTML in this repo render
trusted, non-user-controlled markup (a repo-local privacy-policy
markdown file and an admin-only Resend email template preview); the
rule provides no real signal here. If we add user-driven HTML
rendering in the future, gate it through a sanitizer (e.g. DOMPurify)
rather than re-enabling the rule.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
The Fresh 2 updater migrated `preact` to `npm:preact@^10.29.1` but
left the old `preact/` → `https://esm.sh/preact@10.22.0/` trailing-slash
mapping in place. That caused `import "preact/jsx-runtime"` to resolve
to esm.sh while the rest of preact resolved to npm — and esm.sh
periodically rebundles the file, breaking the lockfile integrity check
in CI:

    error: Integrity check failed for remote specifier.
      Specifier: https://esm.sh/preact@10.22.0/jsx-runtime

Removing the `preact/` map entry lets Deno resolve `preact/jsx-runtime`
through the npm package's `exports` field, the same way the Fresh 2
init template does. The (unrelated) `react`/`react-dom`/`react/jsx-runtime`
esm.sh entries stay — they're literal map entries, not trailing-slash
prefixes, so they're stable across esm.sh rebuilds.

Lockfile fully regenerated.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
@kevingorski kevingorski merged commit 9a64a37 into main May 24, 2026
4 checks passed
@kevingorski kevingorski deleted the claude/sharp-neumann-3ddfc7 branch May 24, 2026 19:23
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