feat: upgrade eslint in create-svelte to v9 (#12089)

Author: jrmajor

.changeset/kind-cats-argue.md

@@ -0,0 +1,5 @@
+---
+"create-svelte": minor
+---
+
+feat: upgrade eslint to v9

packages/create-svelte/shared/+eslint+prettier+typescript/.eslintrc.cjs

@@ -0,0 +1,33 @@
+import js from '@eslint/js';
+import ts from 'typescript-eslint';
+import svelte from 'eslint-plugin-svelte';
+import prettier from 'eslint-config-prettier';
+import globals from 'globals';
+
+/** @type {import('eslint').Linter.FlatConfig[]} */
+export default [
+	js.configs.recommended,
+	...ts.configs.recommended,
+	...svelte.configs['flat/recommended'],
+	prettier,
+	...svelte.configs['flat/prettier'],
+	{
+		languageOptions: {
+			globals: {
+				...globals.browser,
+				...globals.node
+			}
+		}
+	},
+	{
+		files: ['**/*.svelte'],
+		languageOptions: {
+			parserOptions: {
+				parser: ts.parser
+			}
+		}
+	},
+	{
+		ignores: ['build/', '.svelte-kit/', 'package/']
+	}
+];

packages/create-svelte/shared/+eslint+prettier+typescript/eslint.config.js

@@ -0,0 +1,23 @@
+import js from '@eslint/js';
+import svelte from 'eslint-plugin-svelte';
+import prettier from 'eslint-config-prettier';
+import globals from 'globals';
+
+/** @type {import('eslint').Linter.FlatConfig[]} */
+export default [
+	js.configs.recommended,
+	...svelte.configs['flat/recommended'],
+	prettier,
+	...svelte.configs['flat/prettier'],
+	{
+		languageOptions: {
+			globals: {
+				...globals.browser,
+				...globals.node
+			}
+		}
+	},
+	{
+		ignores: ['build/', '.svelte-kit/', 'package/']
+	}
+];

packages/create-svelte/shared/+eslint+prettier-typescript/.eslintrc.cjs

@@ -1,5 +1,5 @@
 {
 	"devDependencies": {
-		"eslint-plugin-svelte": "^2.36.0-next.4"
+		"eslint-plugin-svelte": "^2.36.0"
 	}
 }

packages/create-svelte/shared/+eslint+prettier-typescript/eslint.config.js

@@ -0,0 +1,30 @@
+import js from '@eslint/js';
+import ts from 'typescript-eslint';
+import svelte from 'eslint-plugin-svelte';
+import globals from 'globals';
+
+/** @type {import('eslint').Linter.FlatConfig[]} */
+export default [
+	js.configs.recommended,
+	...ts.configs.recommended,
+	...svelte.configs['flat/recommended'],
+	{
+		languageOptions: {
+			globals: {
+				...globals.browser,
+				...globals.node
+			}
+		}
+	},
+	{
+		files: ['**/*.svelte'],
+		languageOptions: {
+			parserOptions: {
+				parser: ts.parser
+			}
+		}
+	},
+	{
+		ignores: ['build/', '.svelte-kit/', 'package/']
+	}
+];

packages/create-svelte/shared/+eslint+svelte5/package.json

@@ -1,6 +1,5 @@
 {
 	"devDependencies": {
-		"@typescript-eslint/eslint-plugin": "^7.0.0",
-		"@typescript-eslint/parser": "^7.0.0"
+		"typescript-eslint": "^7.5.0"
 	}
 }