[CONFIG] ESlint old .eslintrc migrated to eslint.config.mjs flat conf…

…iguration files

https://eslint.org/docs/latest/use/configure/migration-guide

.github/workflows/eslint.yml

@@ -60,9 +60,8 @@ jobs:
       - name: Run ESLint
         run: >
           npx eslint .
-          --config .eslintrc
+          --color
           --max-warnings=0
-          --ext .js,.jsx,.ts,.tsx
           --format @microsoft/eslint-formatter-sarif
           --output-file eslint-results.sarif
         continue-on-error: true

Dockerfile

@@ -40,8 +40,8 @@ COPY ./Makefile ${WORKDIR}/
 # code linting conf
 COPY ./.prettierrc ${WORKDIR}/
 COPY ./.prettierignore ${WORKDIR}/
-COPY ./.eslintrc ${WORKDIR}/
-COPY ./.eslintignore ${WORKDIR}/
+COPY ./eslint.config.mjs ${WORKDIR}/
+
 
 # markdownlint conf
 COPY ./.markdownlint.yaml ${WORKDIR}/

eslint.config.mjs

@@ -0,0 +1,112 @@
+import { fixupConfigRules, fixupPluginRules } from '@eslint/compat';
+import typescriptEslint from '@typescript-eslint/eslint-plugin';
+import _import from 'eslint-plugin-import';
+import jest from 'eslint-plugin-jest';
+import prettier from 'eslint-plugin-prettier';
+import tsParser from '@typescript-eslint/parser';
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
+import js from '@eslint/js';
+import { FlatCompat } from '@eslint/eslintrc';
+
+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', '**/node_modules', '**/*.js']
+  },
+  ...fixupConfigRules(
+    compat.extends(
+      'eslint:recommended',
+      'plugin:@typescript-eslint/eslint-recommended',
+      'plugin:@typescript-eslint/recommended',
+      'plugin:@typescript-eslint/recommended-type-checked',
+      'plugin:@typescript-eslint/stylistic-type-checked',
+      'airbnb-base',
+      'prettier',
+      'plugin:import/recommended',
+      'plugin:import/errors',
+      'plugin:import/warnings',
+      'plugin:jest/all'
+    )
+  ),
+  {
+    plugins: {
+      '@typescript-eslint': fixupPluginRules(typescriptEslint),
+      import: fixupPluginRules(_import),
+      jest: fixupPluginRules(jest),
+      prettier
+    },
+
+    languageOptions: {
+      parser: tsParser,
+      ecmaVersion: 5,
+      sourceType: 'script',
+
+      parserOptions: {
+        project: true
+      }
+    },
+
+    settings: {
+      'import/parsers': {
+        '@typescript-eslint/parser': ['.ts', '.tsx']
+      },
+
+      'import/resolver': {
+        typescript: {
+          alwaysTryTypes: true,
+          project: '.'
+        }
+      }
+    },
+
+    rules: {
+      'prettier/prettier': ['error'],
+
+      'import/extensions': [
+        'error',
+        'always',
+        {
+          pattern: {
+            ts: 'never'
+          }
+        }
+      ],
+
+      'no-restricted-syntax': 0,
+      'no-console': 'off',
+      'no-underscore-dangle': 0,
+
+      'no-plusplus': [
+        'error',
+        {
+          allowForLoopAfterthoughts: true
+        }
+      ],
+
+      'no-shadow': 'off',
+      '@typescript-eslint/no-shadow': 'error',
+      'no-unused-vars': 'off',
+      '@typescript-eslint/no-unused-vars': 'error',
+      'no-use-before-define': 'off',
+      '@typescript-eslint/no-use-before-define': 'error'
+    }
+  },
+  {
+    files: ['**/*.ts', '**/*.mts', '**/*.cts', '**/*.tsx'],
+
+    rules: {
+      '@typescript-eslint/explicit-function-return-type': 'error'
+    }
+  },
+  {
+    ignores: ["dist/*", "coverage/*", "node_modules/*", "eslint.config.mjs"]
+  }
+];