chore: use @sveltejs/eslint-config (#9977)

Author: benmccann

.eslintrc.json

@@ -1,15 +1,11 @@
 {
+	"root": true,
+	"extends": "@sveltejs",
 	"env": {
 		"es2022": true
 	},
-	"parserOptions": {
-		"ecmaVersion": "latest",
-		"sourceType": "module"
-	},
-	"plugins": ["unicorn"],
-	"root": true,
 	"ignorePatterns": ["packages/create-svelte/shared/"],
 	"rules": {
-		"unicorn/prefer-node-protocol": "error"
+		"no-undef": "off"
 	}
 }

package.json

@@ -31,9 +31,13 @@
 		"@rollup/plugin-commonjs": "^25.0.0",
 		"@rollup/plugin-json": "^6.0.0",
 		"@rollup/plugin-node-resolve": "^15.0.1",
+		"@sveltejs/eslint-config": "^6.0.2",
 		"@svitejs/changesets-changelog-github-compact": "^1.1.0",
 		"@typescript-eslint/eslint-plugin": "^5.53.0",
-		"eslint": "^8.33.0",
+		"eslint": "^8.40.0",
+		"eslint-config-prettier": "^8.8.0",
+		"eslint-plugin-import": "^2.27.5",
+		"eslint-plugin-svelte": "^2.28.0",
 		"eslint-plugin-unicorn": "^47.0.0",
 		"playwright": "1.30.0",
 		"prettier": "^2.8.0",

packages/adapter-cloudflare/index.js

@@ -71,15 +71,15 @@ export default function (options = {}) {
  */
 function get_routes_json(builder, assets, { include = ['/*'], exclude = ['<all>'] }) {
 	if (!Array.isArray(include) || !Array.isArray(exclude)) {
-		throw new Error(`routes.include and routes.exclude must be arrays`);
+		throw new Error('routes.include and routes.exclude must be arrays');
 	}
 
 	if (include.length === 0) {
-		throw new Error(`routes.include must contain at least one route`);
+		throw new Error('routes.include must contain at least one route');
 	}
 
 	if (include.length > 100) {
-		throw new Error(`routes.include must contain 100 or fewer routes`);
+		throw new Error('routes.include must contain 100 or fewer routes');
 	}
 
 	exclude = exclude

packages/adapter-node/index.js

@@ -71,7 +71,7 @@ export default function (opts = {}) {
 				dir: `${out}/server`,
 				format: 'esm',
 				sourcemap: true,
-				chunkFileNames: `chunks/[name]-[hash].js`
+				chunkFileNames: 'chunks/[name]-[hash].js'
 			});
 
 			builder.copy(files, out, {

packages/adapter-vercel/index.js

@@ -224,7 +224,7 @@ const plugin = function (defaults = {}) {
 
 			if (ignored_isr.size) {
 				builder.log.warn(
-					`\nWarning: The following routes have an ISR config which is ignored because the route is prerendered:`
+					'\nWarning: The following routes have an ISR config which is ignored because the route is prerendered:'
 				);
 
 				for (const ignored of ignored_isr) {
@@ -586,7 +586,7 @@ function validate_vercel_json(builder, vercel_config) {
 
 	if (unmatched_paths.length) {
 		builder.log.warn(
-			`\nWarning: vercel.json defines cron tasks that use paths that do not correspond to an API route with a GET handler (ignore this if the request is handled in your \`handle\` hook):`
+			'\nWarning: vercel.json defines cron tasks that use paths that do not correspond to an API route with a GET handler (ignore this if the request is handled in your `handle` hook):'
 		);
 
 		for (const path of unmatched_paths) {

packages/create-svelte/bin.js

@@ -114,7 +114,7 @@ await create(cwd, {
 	vitest: options.features.includes('vitest')
 });
 
-p.outro(`Your project is ready!`);
+p.outro('Your project is ready!');
 
 if (options.types === 'typescript') {
 	console.log(bold('✔ Typescript'));

packages/create-svelte/scripts/build-templates.js

@@ -39,7 +39,7 @@ function strip_jsdoc(content) {
 					return '';
 				}
 
-				return `/**${description.replace(/\*\ $/, '')}*/${whitespace}`;
+				return `/**${description.replace(/\* $/, '')}*/${whitespace}`;
 			}
 		);
 }

packages/create-svelte/test/check.js

@@ -32,7 +32,7 @@ for (const pkg_path of glob(resolve_path('../../../packages/*/package.json'))) {
 
 try {
 	const kit_dir = resolve_path('../../../packages/kit');
-	const ls_vite_result = execSync(`pnpm ls --json vite`, { cwd: kit_dir });
+	const ls_vite_result = execSync('pnpm ls --json vite', { cwd: kit_dir });
 	const vite_version = JSON.parse(ls_vite_result.toString())[0].devDependencies.vite.version;
 	overrides.vite = vite_version;
 } catch (e) {
@@ -61,7 +61,7 @@ fs.writeFileSync(path.join(test_workspace_dir, 'pnpm-workspace.yaml'), 'packages
 const exec_async = promisify(exec);
 
 beforeAll(async () => {
-	await exec_async(`pnpm install --no-frozen-lockfile`, {
+	await exec_async('pnpm install --no-frozen-lockfile', {
 		cwd: test_workspace_dir
 	});
 }, 60000);

packages/kit/src/core/config/options.js

@@ -210,7 +210,7 @@ const options = object(
 					(/** @type {any} */ { message }) => {
 						throw new Error(
 							message +
-								`\nTo suppress or handle this error, implement \`handleHttpError\` in https://kit.svelte.dev/docs/configuration#prerender`
+								'\nTo suppress or handle this error, implement `handleHttpError` in https://kit.svelte.dev/docs/configuration#prerender'
 						);
 					},
 					(input, keypath) => {
@@ -224,7 +224,7 @@ const options = object(
 					(/** @type {any} */ { message }) => {
 						throw new Error(
 							message +
-								`\nTo suppress or handle this error, implement \`handleMissingId\` in https://kit.svelte.dev/docs/configuration#prerender`
+								'\nTo suppress or handle this error, implement `handleMissingId` in https://kit.svelte.dev/docs/configuration#prerender'
 						);
 					},
 					(input, keypath) => {
@@ -238,7 +238,7 @@ const options = object(
 					(/** @type {any} */ { message }) => {
 						throw new Error(
 							message +
-								`\nTo suppress or handle this error, implement \`handleEntryGeneratorMismatch\` in https://kit.svelte.dev/docs/configuration#prerender`
+								'\nTo suppress or handle this error, implement `handleEntryGeneratorMismatch` in https://kit.svelte.dev/docs/configuration#prerender'
 						);
 					},
 					(input, keypath) => {

packages/kit/src/core/env.js

@@ -75,7 +75,7 @@ export function create_dynamic_types(id, env, prefix) {
 
 	if (id === 'private') {
 		properties.push(`${prefixed}: undefined;`);
-		properties.push(`[key: string]: string | undefined;`);
+		properties.push('[key: string]: string | undefined;');
 	} else {
 		properties.push(`${prefixed}: string | undefined;`);
 	}