SvelteKit 2, with the Vite 5 toolchain it needs (supersedes #176)

package.json

@@ -45,10 +45,12 @@
 	},
 	"devDependencies": {
 		"@neoconfetti/svelte": "^1.0.0",
-		"@sveltejs/adapter-static": "^2.0.3",
-		"@sveltejs/kit": "^1.20.4",
+		"@sveltejs/adapter-static": "^3.0.10",
+		"@sveltejs/kit": "^2.70.3",
+		"@sveltejs/vite-plugin-svelte": "^3.1.2",
 		"@types/cookie": "^0.5.1",
 		"@types/dateformat": "^5.0.1",
+		"@types/node": "^20.19.43",
 		"@types/prismjs": "^1.26.2",
 		"@typescript-eslint/eslint-plugin": "^6.0.0",
 		"@typescript-eslint/parser": "^6.0.0",
@@ -67,12 +69,12 @@
 		"sass": "^1.69.4",
 		"striptags": "^3.2.0",
 		"svelte": "^4.0.5",
-		"svelte-check": "^3.4.3",
+		"svelte-check": "^3.8.6",
 		"svelte-sitemap": "^2.6.0",
 		"tslib": "^2.4.1",
-		"typescript": "^5.0.0",
-		"vite": "^4.5.3",
-		"vitest": "^0.32.2"
+		"typescript": "^5.9.3",
+		"vite": "^5.4.21",
+		"vitest": "^3.2.7"
 	},
 	"type": "module",
 	"dependencies": {

src/routes/(site)/tools/alphabet/[language]/+page.server.ts

@@ -12,7 +12,7 @@ export function entries() {
 export function load({ params }) {
 	const lang = WORD_LISTS.find((l) => l.slug === params.language);
 	const alphabet = ALPHABETS.find((a) => a.code === lang?.code);
-	if (!lang || !alphabet) throw error(404, 'No alphabet page for that language');
+	if (!lang || !alphabet) error(404, 'No alphabet page for that language');
 
 	/** Other languages using the same script — the letters mostly carry over. */
 	const cousins = ALPHABETS.filter((a) => a.script === alphabet.script && a.code !== alphabet.code)

src/routes/(site)/tools/meaning-quiz/[language]/+page.server.ts

@@ -15,7 +15,7 @@ export function entries() {
 
 export async function load({ params }) {
 	const meta = WORD_LISTS.find((l) => l.slug === params.language);
-	if (!meta) throw error(404, 'No quiz for that language');
+	if (!meta) error(404, 'No quiz for that language');
 
 	const rows = (
 		await readFile(
@@ -42,7 +42,7 @@ export async function load({ params }) {
 		return true;
 	});
 
-	if (usable.length < ROUNDS * OPTIONS) throw error(404, 'Not enough usable words for a quiz');
+	if (usable.length < ROUNDS * OPTIONS) error(404, 'Not enough usable words for a quiz');
 
 	return { meta, pool: usable, rounds: ROUNDS, options: OPTIONS };
 }

src/routes/(site)/tools/most-common-words/[language]/+page.server.ts

@@ -22,7 +22,7 @@ export function entries() {
 
 export async function load({ params }) {
 	const meta = WORD_LISTS.find((l) => l.slug === params.language);
-	if (!meta) throw error(404, 'No word list for that language');
+	if (!meta) error(404, 'No word list for that language');
 
 	const file = path.join(process.cwd(), 'static/data/most-common-words', `${meta.slug}.tsv`);
 	const rows = (await readFile(file, 'utf8'))

src/routes/(site)/tools/say/[word]/+page.server.ts

@@ -37,7 +37,7 @@ export function entries() {
 
 export async function load({ params }) {
 	const entry = SAY_WORDS.find((w) => w.slug === params.word);
-	if (!entry) throw error(404, 'No page for that word');
+	if (!entry) error(404, 'No page for that word');
 
 	const byCode = new Map(WORD_LISTS.map((l) => [l.code, l]));
 	// Where each language's word sits in this page's audio file, for the

src/routes/(site)/tools/similar/[pair]/+page.server.ts

@@ -14,11 +14,11 @@ export function entries() {
 
 export async function load({ params }) {
 	const pair = LANGUAGE_PAIRS.find((p) => p.slug === params.pair);
-	if (!pair) throw error(404, 'No page for that pair');
+	if (!pair) error(404, 'No page for that pair');
 
 	const a = WORD_LISTS.find((l) => l.code === pair.a);
 	const b = WORD_LISTS.find((l) => l.code === pair.b);
-	if (!a || !b) throw error(404, 'Unknown language in that pair');
+	if (!a || !b) error(404, 'Unknown language in that pair');
 
 	const rows = (
 		await readFile(

src/routes/(site)/tools/vocabulary-test/[language]/+page.server.ts

@@ -26,7 +26,7 @@ export function entries() {
 
 export async function load({ params }) {
 	const meta = WORD_LISTS.find((l) => l.slug === params.language);
-	if (!meta) throw error(404, 'No word list for that language');
+	if (!meta) error(404, 'No word list for that language');
 
 	const file = path.join(process.cwd(), 'static/data/most-common-words', `${meta.slug}.tsv`);
 	const rows = (await readFile(file, 'utf8'))

src/routes/(site)/tools/word-game/[language]/+page.server.ts

@@ -9,7 +9,7 @@ export function entries() {
 export function load({ params }) {
 	const game = WORD_GAME_LANGUAGES.find((l) => l.slug === params.language);
 	const meta = WORD_LISTS.find((l) => l.slug === params.language);
-	if (!game || !meta) throw error(404, 'No word game for that language');
+	if (!game || !meta) error(404, 'No word game for that language');
 
 	const others = WORD_GAME_LANGUAGES.filter((l) => l.slug !== game.slug);
 	return { game, meta, others };

svelte.config.js

@@ -1,5 +1,7 @@
 import adapter from '@sveltejs/adapter-static';
-import { vitePreprocess } from '@sveltejs/kit/vite';
+// Kit 2 no longer re-exports it; it comes from the Vite plugin, a direct
+// dependency since the upgrade.
+import { vitePreprocess } from '@sveltejs/vite-plugin-svelte';
 import { mdsvex } from 'mdsvex';
 import rehypeExternalLinks from 'rehype-external-links';
 import rehypeSlug from 'rehype-slug';