feat: update eslint-plugin-svelte v3 (#453)

* feat: update eslint-plugin-svelte v3

* add changeset

* fix

* Update .changeset/seven-readers-bake.md

---------

Co-authored-by: Manuel <[email protected]>
Co-authored-by: Manuel <[email protected]>

Author: baseballyama

.changeset/seven-readers-bake.md

@@ -0,0 +1,5 @@
+---
+'sv': patch
+---
+
+feat: update `eslint-plugin-svelte` v3

packages/addons/_tests/eslint/test.ts

@@ -15,7 +15,7 @@ test.concurrent.for(variants)('core - %s', async (variant, { page, ...ctx }) =>
 	ctx.onTestFinished(async () => await close());
 
 	const unlintedFile = 'let foo = "";\nif (Boolean(foo)) {\n//\n}';
-	fs.writeFileSync(path.resolve(cwd, 'foo.js'), unlintedFile, 'utf8');
+	fs.writeFileSync(path.resolve(cwd, 'src/lib/foo.js'), unlintedFile, 'utf8');
 
 	expect(() => execSync('pnpm lint', { cwd, stdio: 'pipe' })).toThrowError();
 

packages/addons/_tests/prettier/test.ts

@@ -15,7 +15,7 @@ test.concurrent.for(variants)('core - %s', async (variant, { page, ...ctx }) =>
 	ctx.onTestFinished(async () => await close());
 
 	const unformattedFile = 'const foo = "bar"';
-	fs.writeFileSync(path.resolve(cwd, 'foo.js'), unformattedFile, 'utf8');
+	fs.writeFileSync(path.resolve(cwd, 'src/lib/foo.js'), unformattedFile, 'utf8');
 
 	expect(() => execSync('pnpm lint', { cwd, stdio: 'pipe' })).toThrowError();
 

packages/addons/eslint/index.ts

@@ -22,6 +22,8 @@ export default defineAddon({
 
 		sv.devDependency('eslint', '^9.18.0');
 		sv.devDependency('@eslint/compat', '^1.2.5');
+		sv.devDependency('globals', '^15.14.0');
+		sv.devDependency('eslint-plugin-svelte', '^3.0.0');
 		sv.devDependency('globals', '^16.0.0');
 		sv.devDependency('eslint-plugin-svelte', '^2.46.1');
 		sv.devDependency('@eslint/js', '^9.18.0');
@@ -58,6 +60,8 @@ export default defineAddon({
 				AstKinds.ExpressionKind | AstTypes.SpreadElement | AstTypes.ObjectExpression
 			> = [];
 
+			imports.addDefault(ast, './svelte.config.js', 'svelteConfig');
+
 			const gitIgnorePathStatement = common.statementFromString(
 				'\nconst gitignorePath = fileURLToPath(new URL("./.gitignore", import.meta.url));'
 			);
@@ -74,7 +78,7 @@ export default defineAddon({
 				eslintConfigs.push(common.createSpreadElement(tsConfig));
 			}
 
-			const svelteConfig = common.expressionFromString('svelte.configs["flat/recommended"]');
+			const svelteConfig = common.expressionFromString('svelte.configs.recommended');
 			eslintConfigs.push(common.createSpreadElement(svelteConfig));
 
 			const globalsBrowser = common.createSpreadElement(
@@ -92,10 +96,24 @@ export default defineAddon({
 
 			if (typescript) {
 				const svelteTSParserConfig = object.create({
-					files: common.expressionFromString('["**/*.svelte"]'),
+					files: common.expressionFromString('["**/*.svelte", "**/*.svelte.ts", "**/*.svelte.js"]'),
+					ignores: common.expressionFromString('["eslint.config.js", "svelte.config.js"]'),
+					languageOptions: object.create({
+						parserOptions: object.create({
+							projectService: common.expressionFromString('true'),
+							extraFileExtensions: common.expressionFromString("['.svelte']"),
+							parser: common.expressionFromString('ts.parser'),
+							svelteConfig: common.expressionFromString('svelteConfig')
+						})
+					})
+				});
+				eslintConfigs.push(svelteTSParserConfig);
+			} else {
+				const svelteTSParserConfig = object.create({
+					files: common.expressionFromString('["**/*.svelte", "**/*.svelte.js"]'),
 					languageOptions: object.create({
 						parserOptions: object.create({
-							parser: common.expressionFromString('ts.parser')
+							svelteConfig: common.expressionFromString('svelteConfig')
 						})
 					})
 				});