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chore(deps): migrate @sveltejs/kit to v3 and sveltejs/adapter-vercel to v7 - #4193

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KATO-Hiro merged 11 commits into
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#4192
Oct 21, 2026
Merged

KATO-Hiro merged 11 commits into
stagingfrom
#4192

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@KATO-Hiro

@KATO-Hiro KATO-Hiro commented Oct 19, 2026 •

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close #4192

Summary by CodeRabbit

  • 変更
    • SvelteKit 3へ移行し、アプリケーションの実行環境と設定を更新しました。
  • ドキュメント
    • リダイレクト、内部リンク、フォーム送信、サーバー専用コードの扱いに関するガイドを更新しました。
  • 改善
    • ワークブック一覧や管理画面のフィルター操作で、URLと画面状態が正しく連動するよう改善しました。
  • テスト
    • アカウント移行、エラーページ、ログイン、ワークブックの編集・並べ替え・一覧表示に加え、問題一覧のタブ・コンテスト選択や提出ステータス保持のE2Eテストを追加しました。

KATO-Hiro and others added 6 commits October 19, 2026 11:40
SvelteKit 3 no longer reads svelte.config.js, and adapter-vercel 7
requires Kit 3, so both are upgraded together.

- Pin @sveltejs/kit 3.1.0 and @sveltejs/adapter-vercel 7.0.1
- Move the svelte.config.js options into sveltekit() in vite.config.ts;
  pass dynamicCompileOptions directly because Kit 3 removed
  config.vitePlugin (the sv migrate output still nests it there)
- Extend $app/tsconfig, which provides the compiler options that were
  set by hand, and keep $app/types in the overridden "types"

build, unit tests and lint pass. svelte-check reports 20 errors that
belong to the next phase (type export moves, $app/environment,
$app/stores, resolve() typings, and generic Actions params).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Fix the svelte-check errors left by the Kit 3 upgrade and move the
remaining Kit 2 APIs to their Kit 3 forms.

- Import Handle from @sveltejs/kit/hooks and SubmitFunction from
  $app/forms; import Actions from ./$types where params are used
- Replace $app/environment with $app/env, including the test mocks
- Move KanbanBoard from $app/stores to $app/state and from
  replaceState() to a shallow goto(), so filter changes keep the board's
  local state; widen the kanban URL helpers to accept the read-only
  page.url
- Type buildWorkbooksUrl() as a /workbooks route with search so
  resolve() accepts it, use { replace: true } instead of the deprecated
  replaceState option, and drop the @ts-expect-error comments that
  Kit 3's route types no longer need
- Add E2E tests for keeping the kanban state while replacing the filter
  URL and for restoring saved workbook filters without a history entry

svelte-check, lint, unit tests, build, and the related E2E specs pass.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Pin the SvelteKit 3 behavior of form actions, logout, session cookies
and error pages before the release.

- signin: keep form values after a failed enhanced login, return the
  fail() status (400) for an enhanced submission, land on home when
  logging out without a session, and keep the session cookie attributes
- workbook_edit: keep the nested workbook tasks after a failed edit
- account_transfer: reject a non-admin user (page and direct POST) and
  show the validation message for identical account names
- error_pages: render the 404 and 403 error pages

The fail() status and logout tests fail on SvelteKit 2, so they detect
the Kit 3 behavior change.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
- workbook_edit: delete a task row before the failed submission, so the
  test fails if the table falls back to the workbook's original tasks
  (confirmed with a temporary onUpdate mutation)
- workbook_order: rename the shallow-routing test to what it checks
  (no data reload and no history entry)
- architecture.md: separate the filename and server/ directory rules for
  server-only modules, and split the subpath imports section into
  use / don't use / extensions with OK and NG examples

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The subpath imports section still assumed Kit 2, where lint was the only
guard against $lib. On Kit 3, $lib fails in every form (vi.mock included,
via module_removed_lib), while vi.mock('$features/...') is silently
ignored, which is why the rg sweep remains.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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No actionable comments were generated in the recent review. 🎉

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Reviewing files that changed from the base of the PR and between 810d726 and 9224fbb.

📒 Files selected for processing: 4
  • e2e/problems_contest_table.spec.ts
  • e2e/problems_tabs.spec.ts
  • e2e/submission_status.spec.ts
  • eslint.config.mjs

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📝 Walkthrough

SvelteKitとVercelアダプターを更新し、設定をvite.config.tsへ移しました。SvelteKit 3のAPI、型、ナビゲーション処理、文書、E2Eテストを更新しました。

Changes: SvelteKit 3移行

Layer / File(s) Summary
依存関係とビルド設定
package.json, svelte.config.js, vite.config.ts, tsconfig.json, AGENTS.md, CONTRIBUTING.md, src/app.d.ts, src/hooks.server.ts
SvelteKitを3.1.0、Vercelアダプターを7.0.1へ更新しました。設定をvite.config.tsへ移し、tsconfig.jsonの継承元を$app/tsconfigへ変更しました。
SvelteKit APIと型の更新
src/features/**, src/lib/**, src/routes/**, docs/guides/agent-rules/testing.md
$app/env、$app/state、$app/formsなどの使用箇所を更新しました。resolve()、フォーム型、URL型、型エラー抑制をSvelteKit 3に合わせました。
ナビゲーションとURL状態
src/routes/(admin)/workbooks/order/..., src/routes/workbooks/+page.svelte, src/features/workbooks/utils/workbook_url_params.ts, e2e/workbook_order.spec.ts, e2e/workbooks_list.spec.ts
Kanbanのフィルター更新にgoto()を使用し、shallow: trueとreplace: trueを指定しました。ワークブックURLの型と状態復元を更新しました。
文書とE2E検証
docs/guides/agent-rules/*, docs/guides/architecture.md, e2e/*, eslint.config.mjs
SvelteKit 3のリダイレクト、server-only判定、subpath import、フォームアクションを文書化しました。認証、権限、エラーページ、フォーム、一覧状態、提出状態のE2Eテストを追加しました。

Priority: ➖ Normal

Estimated code review effort: 3 (Moderate) | ~25 minutes

Change: Other

Merge Risk: ⚪ Minimal · up to 9224f

The added persistence tests cover the identified reload behaviors, and no issue requiring a fix before merge remains.

Pre-merge checks: Passed 4 · Failed 1

Failed Failed checks: 1 warning

Check name Status Explanation Resolution
Docstring Coverage Warning Docstring coverage is 50.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 14 functions across 24 files. Write docstrings for the functions missing them to satisfy the coverage threshold.
Passed Passed checks: 4 passed
Check name Status Explanation
Description Check Passed Check skipped - CodeRabbit’s high-level summary is enabled.
Title check Passed タイトルは、SvelteKitをv3へ、@sveltejs/adapter-vercelをv7へ移行する主要変更を正確かつ簡潔に示しています。
Linked Issues check Passed 直接リンクされた #4192 は、SvelteKit v2 から v3 への移行と @sveltejs/adapter-vercel v6 から v7 への移行を要求しています。package.json はそれぞれ @sveltejs/kit 3.1.0 と @sveltejs/adapter-vercel 7.0.1 に更新されています。vite.config.ts、`tsc…
Out of Scope Changes check Passed 変更は #4192 の移行に関連します。設定移行、API 互換性の修正、移行後のフォーム・ナビゲーション・状態保持を確認する E2E テスト、移行手順のドキュメント更新を含みます。無関係な機能変更は確認できません。
Full details: Linked Issues check

Explanation

直接リンクされた #4192 は、SvelteKit v2 から v3 への移行と @sveltejs/adapter-vercel v6 から v7 への移行を要求しています。package.json はそれぞれ @sveltejs/kit 3.1.0 と @sveltejs/adapter-vercel 7.0.1 に更新されています。vite.config.ts、tsconfig.json、SvelteKit 3 の API import、関連テストとドキュメントも移行内容に合わせて更新されています。

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The previous note read as if the file was removed by choice. Link the
official migration guide, which states svelte.config.js is no longer
supported.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Kit 3 already explains $lib imports through module_removed_lib, so the
rule's remaining value is catching them at pre-commit, where lefthook
runs ESLint and oxlint but not svelte-check or Vite.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

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Caution

Some comments are outside the diff and can’t be posted inline due to GitHub limitations.

⚠️ Outside diff range comments (1)

🟡 Minor · ActionResult JSON 用ヘッダーを両方の helper に追加してください。 · account_transfer.spec.ts:20-23

e2e/account_transfer.spec.ts:20-23
🎯 Functional Correctness | 🟡 Minor | ⚡ Quick win

ActionResult JSON 用ヘッダーを両方の helper に追加してください。

postAccountTransfer と postFormAction は通常の form POST を送信しています。未認証または非管理者の場合、各 action は /login へ redirect します。ActionResult JSON を要求しないため、fetch は redirect 後の HTML を返します。その結果、JSON.parse が失敗します。

Suggested fix
-        headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
+        headers: {
+          'Content-Type': 'application/x-www-form-urlencoded',
+          accept: 'application/json',
+          'x-sveltekit-action': 'true',
+        },
-      headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
+      headers: {
+        'Content-Type': 'application/x-www-form-urlencoded',
+        accept: 'application/json',
+        'x-sveltekit-action': 'true',
+      },
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only still-valid issues, skip the rest with a brief reason, keep changes
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Review comment at @e2e/account_transfer.spec.ts around lines 20 - 23:
postAccountTransfer と postFormAction の両方の fetch に ActionResult JSON 用の accept:
'application/json' と x-sveltekit-action: 'true' ヘッダーを追加し、既存の Content-Type
は維持してください。

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only still-valid issues, skip the rest with a brief reason, keep changes
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Outside diff comments:
Review comments at @e2e/account_transfer.spec.ts:
- Around line 20-23: postAccountTransfer と postFormAction の両方の fetch に
ActionResult JSON 用の accept: 'application/json' と x-sveltekit-action: 'true'
ヘッダーを追加し、既存の Content-Type は維持してください。

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KATO-Hiro and others added 3 commits October 21, 2026 06:02
Two manual checks for the SvelteKit 3 upgrade had no E2E coverage:

- submission_status: change the status of the only seeded ABS task as
  guest, reload, and read the checked item in the dropdown; the original
  status is restored in finally. The dropdown updates the page without
  checking the response, so only a reload proves the server saved it.
- problems_tabs / problems_contest_table: the selected problem list tab
  and the ABC 319 onwards group survive a reload (localStorage).

Each test fails at its post-reload assertion when the server save or the
localStorage write is disabled (mutation-checked, then reverted).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

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LGTM

@KATO-Hiro
KATO-Hiro merged commit 950a56a into staging Oct 21, 2026
3 checks passed
@KATO-Hiro
KATO-Hiro deleted the #4192 branch October 21, 2026 06:24

This branch was successfully deployed

1 active deployment
preview — 9224fbbc Deployed Oct 21, 2026 by KATO-Hiro via preview #9030
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deps: migrate kit from v2 to v3 and sveltejs/adapter-vercel v6 to v7

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