new config file, fix types, add webpack

more old rules, disable new node rules

Author: overbalance

eslint.config.js

@@ -0,0 +1,188 @@
+/* eslint-disable license-header/header */
+import eslint from '@eslint/js';
+import tseslint from 'typescript-eslint';
+import globals from 'globals';
+import licenseHeaderPlugin from 'eslint-plugin-license-header';
+import nodePlugin from 'eslint-plugin-n';
+
+const license = [
+  '/*',
+  ' * Copyright The OpenTelemetry Authors',
+  ' *',
+  ' * Licensed under the Apache License, Version 2.0 (the "License");',
+  ' * you may not use this file except in compliance with the License.',
+  ' * You may obtain a copy of the License at',
+  ' *',
+  ' *      https://www.apache.org/licenses/LICENSE-2.0',
+  ' *',
+  ' * Unless required by applicable law or agreed to in writing, software',
+  ' * distributed under the License is distributed on an "AS IS" BASIS,',
+  ' * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.',
+  ' * See the License for the specific language governing permissions and',
+  ' * limitations under the License.',
+  ' */',
+];
+
+const baseConfig = tseslint.config(
+  {
+    ignores: [
+      '**/build/**',
+      '**/coverage/**',
+      '**/dist/**',
+      '**/node_modules/**',
+    ],
+  },
+  {
+    files: ['**/*.{js,ts,mjs}', '*.{js,ts,mjs}'],
+    plugins: {
+      'license-header': licenseHeaderPlugin,
+      node: nodePlugin,
+    },
+    extends: [
+      eslint.configs.recommended,
+      // nodePlugin.configs['flat/recommended'],
+    ],
+    languageOptions: {
+      ecmaVersion: 2022,
+      globals: {
+        ...globals.node,
+      },
+    },
+    settings: {
+      node: {
+        tryExtensions: ['.js', '.json', '.node', '.ts', '.tsx'],
+      },
+    },
+    rules: {
+      // old rules
+      quotes: ['error', 'single', { avoidEscape: true }],
+      eqeqeq: ['error', 'smart'],
+      'prefer-rest-params': 'off',
+      'license-header/header': ['error', license],
+
+      // new rules
+      'no-unused-vars': 'warn',
+      'node/no-deprecated-api': 'warn',
+    },
+  },
+
+  // TypeScript strict rules
+  {
+    files: ['**/*.ts'],
+    plugins: {
+      '@typescript-eslint': tseslint.plugin,
+    },
+    // turn on when we can check types
+    // extends: [...tseslint.configs.recommendedTypeChecked],
+    extends: [...tseslint.configs.recommended],
+    languageOptions: {
+      parser: tseslint.parser,
+      parserOptions: {
+        project: true,
+      },
+    },
+    rules: {
+      // 'node/no-missing-import': 'off',
+
+      // things that should be repaired
+      '@typescript-eslint/no-explicit-any': 'warn',
+      '@typescript-eslint/no-require-imports': 'warn',
+      '@typescript-eslint/no-unsafe-function-type': 'warn',
+      '@typescript-eslint/no-empty-object-type': 'warn',
+      '@typescript-eslint/no-unused-vars': [
+        'warn',
+        { argsIgnorePattern: '^_' },
+      ],
+
+      // old rules
+      // this is a replacement for the deprecated ban-types rules
+      '@typescript-eslint/no-restricted-types': [
+        'warn',
+        {
+          types: {
+            Function: 'fix',
+          },
+        },
+      ],
+      // TODO: fix inheritance
+      '@typescript-eslint/no-floating-promises': 'error',
+      '@typescript-eslint/no-this-alias': 'off',
+      '@typescript-eslint/naming-convention': [
+        'error',
+        {
+          selector: 'memberLike',
+          modifiers: ['private', 'protected'],
+          format: ['camelCase'],
+          leadingUnderscore: 'require',
+        },
+      ],
+      '@typescript-eslint/no-var-requires': 'off',
+      '@typescript-eslint/no-inferrable-types': [
+        'error',
+        { ignoreProperties: true },
+      ],
+      '@typescript-eslint/no-empty-function': ['off'],
+      '@typescript-eslint/no-shadow': ['warn'],
+      'prefer-rest-params': 'off',
+    },
+  },
+
+  // Test files have relaxed rules
+  {
+    files: ['**/test/**/*.ts', '**/*.test.ts'],
+    rules: {
+      '@typescript-eslint/no-explicit-any': 'off',
+      '@typescript-eslint/no-unsafe-assignment': 'off',
+      '@typescript-eslint/no-unsafe-member-access': 'off',
+      '@typescript-eslint/no-unsafe-call': 'off',
+      '@typescript-eslint/no-unsafe-return': 'off',
+      '@typescript-eslint/restrict-template-expressions': 'off',
+      '@typescript-eslint/unbound-method': 'off',
+      '@typescript-eslint/no-non-null-assertion': 'off',
+      '@typescript-eslint/no-unnecessary-condition': 'off',
+      '@typescript-eslint/no-unsafe-argument': 'off',
+      '@typescript-eslint/ban-ts-comment': 'off',
+      '@typescript-eslint/no-shadow': 'off',
+      '@typescript-eslint/require-await': 'off',
+      '@typescript-eslint/no-floating-promises': 'off',
+      '@typescript-eslint/no-misused-promises': 'off',
+      '@typescript-eslint/no-base-to-string': 'off',
+      '@typescript-eslint/prefer-promise-reject-errors': 'off',
+      '@typescript-eslint/no-unused-vars': [
+        'warn',
+        { argsIgnorePattern: '^_' },
+      ],
+      'no-empty': 'off',
+    },
+  },
+
+  // ESM files
+  {
+    files: ['**/*.mjs'],
+    languageOptions: {
+      sourceType: 'module',
+    },
+  },
+
+  // Browser environment
+  {
+    files: [
+      '**/examples/web/**/*',
+      '**/packages/**/browser/**/*',
+      '**/packages/instrumentation-user-interaction/**/*',
+      '**/packages/instrumentation-document-load/**/*',
+      '**/packages/instrumentation-long-task/**/*',
+      '**/packages/plugin-react-load/**/*',
+    ],
+    languageOptions: {
+      globals: {
+        ...globals.browser,
+        Zone: 'readonly',
+        Task: 'readonly',
+      },
+    },
+  }
+);
+
+// module.exports = baseConfig;
+export default baseConfig;