Revert "Migrate to eslint9"

This reverts commit 2158a73.

.eslintrc.js

@@ -0,0 +1,78 @@
+/** @type {import("eslint").Linter.Config} */
+module.exports = {
+  parser: '@typescript-eslint/parser',
+  plugins: ['prettier', '@typescript-eslint'],
+  extends: [
+    'plugin:@typescript-eslint/recommended',
+    'plugin:@typescript-eslint/recommended-type-checked',
+    'plugin:@typescript-eslint/stylistic-type-checked',
+    'plugin:prettier/recommended',
+    'plugin:unicorn/recommended',
+  ],
+  parser: '@typescript-eslint/parser',
+  parserOptions: {
+    tsconfigRootDir: __dirname,
+    project: './tsconfig.lint.json',
+  },
+  rules: {
+    '@typescript-eslint/no-unused-vars': [
+      'warn',
+      { argsIgnorePattern: '^_', ignoreRestSiblings: true },
+    ],
+    'no-underscore-dangle': 0,
+    curly: 'error',
+    '@typescript-eslint/no-explicit-any': 0,
+    '@typescript-eslint/explicit-module-boundary-types': 0,
+    '@typescript-eslint/ban-ts-comment': 0,
+    semi: ['error', 'never'],
+    'unicorn/no-new-array': 'off',
+    'unicorn/no-empty-file': 'off',
+    'unicorn/prefer-type-error': 'off',
+    'unicorn/prefer-modern-math-apis': 'off',
+    'unicorn/prefer-node-protocol': 'off',
+    'unicorn/no-unreadable-array-destructuring': 'off',
+    'unicorn/no-abusive-eslint-disable': 'off',
+    'unicorn/no-array-callback-reference': 'off',
+    'unicorn/number-literal-case': 'off',
+    'unicorn/prefer-add-event-listener': 'off',
+    'unicorn/prefer-top-level-await': 'off',
+    'unicorn/consistent-function-scoping': 'off',
+    'unicorn/no-await-expression-member': 'off',
+    'unicorn/no-lonely-if': 'off',
+    'unicorn/consistent-destructuring': 'off',
+    'unicorn/prefer-module': 'off',
+    'unicorn/prefer-optional-catch-binding': 'off',
+    'unicorn/no-useless-undefined': 'off',
+    'unicorn/no-null': 'off',
+    'unicorn/no-nested-ternary': 'off',
+    'unicorn/filename-case': 'off',
+    'unicorn/catch-error-name': 'off',
+    'unicorn/prevent-abbreviations': 'off',
+    'unicorn/prefer-code-point': 'off',
+    'unicorn/numeric-separators-style': 'off',
+    'unicorn/no-array-for-each': 'off',
+    'unicorn/prefer-spread': 'off',
+    'unicorn/explicit-length-check': 'off',
+    'unicorn/prefer-regexp-test': 'off',
+    'unicorn/relative-url-style': 'off',
+    'unicorn/prefer-math-trunc': 'off',
+    'unicorn/prefer-query-selector': 'off',
+    'unicorn/no-negated-condition': 'off',
+    'unicorn/switch-case-braces': 'off',
+    'unicorn/prefer-switch': 'off',
+    'unicorn/better-regex': 'off',
+    'unicorn/no-for-loop': 'off',
+    'unicorn/escape-case': 'off',
+    'unicorn/prefer-number-properties': 'off',
+    'unicorn/no-process-exit': 'off',
+    'unicorn/prefer-at': 'off',
+
+    '@typescript-eslint/no-unsafe-member-access': 'off',
+    '@typescript-eslint/no-unsafe-argument': 'off',
+    '@typescript-eslint/no-unsafe-assignment': 'off',
+    '@typescript-eslint/no-unsafe-call': 'off',
+    '@typescript-eslint/no-unsafe-return': 'off',
+    '@typescript-eslint/prefer-nullish-coalescing': 'off',
+    '@typescript-eslint/require-await': 'off',
+  },
+}

package.json

@@ -22,7 +22,7 @@
   "scripts": {
     "test": "jest",
     "coverage": "npm test -- --coverage",
-    "lint": "eslint --report-unused-disable-directives --max-warnings 0 src test",
+    "lint": "eslint --report-unused-disable-directives --max-warnings 0 --ext .js,.ts src test",
     "clean": "rimraf dist esm",
     "build:esm": "tsc --target es2018 --outDir esm",
     "build:es5": "tsc --target es2015 --module commonjs --outDir dist",
@@ -52,15 +52,15 @@
     "@types/node": "^20.11.19",
     "@typescript-eslint/eslint-plugin": "^7.0.2",
     "@typescript-eslint/parser": "^7.0.2",
-    "eslint": "^9.4.0",
+    "eslint": "^8.40.0",
     "eslint-config-prettier": "^9.1.0",
     "eslint-plugin-prettier": "^5.1.3",
-    "eslint-plugin-unicorn": "^53.0.0",
+    "eslint-plugin-unicorn": "^51.0.1",
     "jest": "^29.5.0",
     "jest-fetch-mock": "^3.0.3",
     "prettier": "^3.2.5",
     "rimraf": "^5.0.0",
-    "standard-changelog": "^6.0.0",
+    "standard-changelog": "^5.0.0",
     "ts-jest": "^29.1.0",
     "typescript": "^5.0.4"
   },