build: upgrade ESLint to v9.x

Author: mrholek

.eslintignore

@@ -0,0 +1,76 @@
+import eslint from '@eslint/js'
+import eslintPluginUnicorn from 'eslint-plugin-unicorn'
+import eslintPluginPrettierRecommended from 'eslint-plugin-prettier/recommended'
+import eslintPluginVue from 'eslint-plugin-vue'
+import globals from 'globals'
+import typescriptEslint from 'typescript-eslint'
+
+export default typescriptEslint.config(
+  { ignores: ['**/*.d.ts', '**/coverage', '**/dist', '**/docs', 'eslint.config.mjs'] },
+  {
+    extends: [
+      eslint.configs.recommended,
+      ...typescriptEslint.configs.recommended,
+      ...eslintPluginVue.configs['flat/recommended'],
+      eslintPluginUnicorn.configs['flat/recommended'],
+    ],
+    files: ['packages/**/src/**/*.{js,ts,tsx}'],
+    languageOptions: {
+      ecmaVersion: 'latest',
+      sourceType: 'module',
+      globals: globals.browser,
+      parserOptions: {
+        parser: typescriptEslint.parser,
+      },
+    },
+    rules: {
+      'no-console': 'off',
+      'no-debugger': 'off',
+      'unicorn/filename-case': 'off',
+      'unicorn/no-array-for-each': 'off',
+      'unicorn/no-null': 'off',
+      'unicorn/prefer-dom-node-append': 'off',
+      'unicorn/prefer-export-from': 'off',
+      'unicorn/prefer-query-selector': 'off',
+      'unicorn/prevent-abbreviations': 'off',
+      'vue/require-default-prop': 'off',
+    },
+  },
+  {
+    files: ['**/*.mjs'],
+    languageOptions: {
+      globals: {
+        ...Object.fromEntries(Object.entries(globals.browser).map(([key]) => [key, 'off'])),
+        ...globals.node,
+      },
+
+      ecmaVersion: 5,
+      sourceType: 'module',
+    },
+  },
+  {
+    files: ['**/__tests__/*.{j,t}s?(x)', '**/tests/unit/**/*.spec.{j,t}s?(x)'],
+    languageOptions: {
+      globals: {
+        ...globals.jest,
+      },
+    },
+  },
+  {
+    files: ['packages/docs/build/**'],
+    languageOptions: {
+      globals: {
+        ...Object.fromEntries(Object.entries(globals.browser).map(([key]) => [key, 'off'])),
+        ...globals.node,
+      },
+
+      ecmaVersion: 5,
+      sourceType: 'commonjs',
+    },
+    rules: {
+      'no-console': 'off',
+      strict: 'error',
+    },
+  },
+  eslintPluginPrettierRecommended,
+)

.eslintrc.js

@@ -17,23 +17,21 @@
     "lib:build": "lerna run --scope \"@coreui/vue\" build --stream",
     "lib:test": "lerna run --scope \"@coreui/vue\" test --stream",
     "lib:test:update": "lerna run --scope \"@coreui/vue\" test:update --stream",
-    "lint": "eslint \"packages/**/src/**/*.{js,ts,tsx}\"",
+    "lint": "eslint",
     "test": "npm-run-all charts:test icons:test lib:test",
     "test:update": "npm-run-all charts:test:update icons:test:update lib:test:update"
   },
   "devDependencies": {
-    "@typescript-eslint/eslint-plugin": "^8.6.0",
-    "@typescript-eslint/parser": "^8.6.0",
-    "@vue/eslint-config-prettier": "^9.0.0",
-    "@vue/eslint-config-typescript": "^13.0.0",
     "@vue/vue3-jest": "29.2.6",
-    "eslint": "8.57.0",
-    "eslint-plugin-prettier": "^5.2.1",
-    "eslint-plugin-vue": "^9.28.0",
+    "eslint": "^9.17.0",
     "eslint-config-prettier": "^9.1.0",
-    "eslint-plugin-unicorn": "^55.0.0",
+    "eslint-plugin-prettier": "^5.2.1",
+    "eslint-plugin-unicorn": "^56.0.1",
+    "eslint-plugin-vue": "^9.32.0",
+    "globals": "^15.14.0",
     "lerna": "^8.1.8",
     "npm-run-all": "^4.1.5",
-    "prettier": "^3.3.3"
+    "prettier": "^3.3.3",
+    "typescript-eslint": "^8.19.1"
   }
 }