refactor: update eslint configuration to match typescript-action template

eslint.config.js

@@ -1,26 +0,0 @@
-import github from "eslint-plugin-github";
-
-export default [
-  github.getFlatConfigs().recommended,
-  ...github.getFlatConfigs().typescript,
-  {
-    files: ["**/*.{js,mjs,cjs,jsx,mjsx,ts,tsx,mtsx}"],
-    ignores: ["eslint.config.mjs"],
-    rules: {
-      "github/array-foreach": "error",
-      "github/async-preventdefault": "warn",
-      "github/no-then": "error",
-      "github/no-blur": "error",
-      'i18n-text/no-en': 'off',
-      'import/no-unresolved': 'off',
-      'import/no-namespace': 'off',
-    },
-    settings: {
-      'import/resolver': {
-        typescript: {
-          project: './tsconfig.json',
-        },
-      },
-    },
-  },
-];

eslint.config.mjs

@@ -0,0 +1,86 @@
+// See: https://eslint.org/docs/latest/use/configure/configuration-files
+
+import { fixupPluginRules } from '@eslint/compat'
+import { FlatCompat } from '@eslint/eslintrc'
+import js from '@eslint/js'
+import typescriptEslint from '@typescript-eslint/eslint-plugin'
+import tsParser from '@typescript-eslint/parser'
+import _import from 'eslint-plugin-import'
+import prettier from 'eslint-plugin-prettier'
+import globals from 'globals'
+import path from 'node:path'
+import { fileURLToPath } from 'node:url'
+
+const __filename = fileURLToPath(import.meta.url)
+const __dirname = path.dirname(__filename)
+const compat = new FlatCompat({
+  baseDirectory: __dirname,
+  recommendedConfig: js.configs.recommended,
+  allConfig: js.configs.all
+})
+
+export default [
+  {
+    ignores: [
+      '**/coverage',
+      '**/dist',
+      '**/linter',
+      '**/node_modules',
+      '**/lib'
+    ]
+  },
+  ...compat.extends(
+    'eslint:recommended',
+    'plugin:@typescript-eslint/eslint-recommended',
+    'plugin:@typescript-eslint/recommended',
+    'plugin:prettier/recommended'
+  ),
+  {
+    plugins: {
+      import: fixupPluginRules(_import),
+      prettier,
+      '@typescript-eslint': typescriptEslint
+    },
+
+    languageOptions: {
+      globals: {
+        ...globals.node,
+        Atomics: 'readonly',
+        SharedArrayBuffer: 'readonly'
+      },
+
+      parser: tsParser,
+      ecmaVersion: 2023,
+      sourceType: 'module',
+
+      parserOptions: {
+        project: ['tsconfig.eslint.json'],
+        tsconfigRootDir: '.'
+      }
+    },
+
+    settings: {
+      'import/resolver': {
+        typescript: {
+          alwaysTryTypes: true,
+          project: 'tsconfig.eslint.json'
+        }
+      }
+    },
+
+    rules: {
+      camelcase: 'off',
+      'eslint-comments/no-use': 'off',
+      'eslint-comments/no-unused-disable': 'off',
+      'i18n-text/no-en': 'off',
+      'import/no-namespace': 'off',
+      'import/no-unresolved': 'off',
+      'no-console': 'off',
+      'no-shadow': 'off',
+      'no-unused-vars': 'off',
+      '@typescript-eslint/no-explicit-any': 'warn',
+      '@typescript-eslint/no-unused-vars': 'warn',
+      'prettier/prettier': 'error'
+    }
+  }
+]

package.json

@@ -15,7 +15,7 @@
     "bundle": "npm run format:write && npm run package",
     "format:write": "npx prettier --write .",
     "format:check": "npx prettier --check .",
-    "lint": "eslint src/**/*.ts",
+    "lint": "npx eslint .",
     "package": "npx rollup --config rollup.config.ts --configPlugin @rollup/plugin-typescript",
     "test": "vitest --run",
     "test:coverage": "vitest --run --coverage",
@@ -40,6 +40,9 @@
     "strip-ansi": "^7.1.0"
   },
   "devDependencies": {
+    "@eslint/compat": "^1.2.9",
+    "@eslint/eslintrc": "^3.3.1",
+    "@eslint/js": "^9.26.0",
     "@rollup/plugin-commonjs": "^25.0.0",
     "@rollup/plugin-node-resolve": "^15.0.0",
     "@rollup/plugin-typescript": "^12.1.2",
@@ -48,9 +51,11 @@
     "@typescript-eslint/parser": "^8.31.1",
     "@vitest/coverage-v8": "^3.1.2",
     "eslint": "^9.26.0",
-    "eslint-define-config": "^2.1.0",
+    "eslint-config-prettier": "^10.1.2",
     "eslint-import-resolver-typescript": "^4.3.4",
-    "eslint-plugin-github": "^6.0.0",
+    "eslint-plugin-import": "^2.31.0",
+    "eslint-plugin-prettier": "^5.4.0",
+    "globals": "^16.0.0",
     "js-yaml": "^4.0.0",
     "prettier": "^3.5.3",
     "rollup": "^3.0.0",

tsconfig.eslint.json

@@ -9,7 +9,8 @@
   "include": [
     "__tests__",
     "src",
-    "eslint.config.js",
-    "rollup.config.ts"
+    "eslint.config.mjs",
+    "rollup.config.ts",
+    "vitest.config.ts"
   ]
-}
+}