fix!: update eslint and drop support for Node 18

.github/workflows/test.yml

@@ -15,9 +15,8 @@ jobs:
     strategy:
       matrix:
         node-version:
-          - 18.x
           - 20.x
-          - 21.x
+          - 22.x
 
         os:
           - ubuntu-latest
@@ -43,7 +42,7 @@ jobs:
     strategy:
       matrix:
         node-version:
-          - 18.x
+          - 20.x
 
         os:
           - windows-latest

.prettierignore

@@ -13,3 +13,4 @@ cspell.schema.json
 tsconfig*.json
 **/coverage/**
 **/dist/**
+.release-please-manifest.json

eslint.config.mjs

@@ -0,0 +1,111 @@
+// @ts-check
+
+import eslint from '@eslint/js';
+import nodePlugin from 'eslint-plugin-n';
+import simpleImportSort from 'eslint-plugin-simple-import-sort';
+import tsEslint from 'typescript-eslint';
+
+// mimic CommonJS variables -- not needed if using CommonJS
+// import { FlatCompat } from "@eslint/eslintrc";
+// const __dirname = fileURLToPath(new URL('.', import.meta.url));
+// const compat = new FlatCompat({baseDirectory: __dirname, recommendedConfig: eslint.configs.recommended});
+
+export default tsEslint.config(
+    eslint.configs.recommended,
+    nodePlugin.configs['flat/recommended'],
+    ...tsEslint.configs.recommended,
+    ...tsEslint.configs.strict,
+    ...tsEslint.configs.stylistic,
+    {
+        ignores: [
+            '.github/**/*.yaml',
+            '.github/**/*.yml',
+            '**/__snapshots__/**',
+            '**/.vscode-test/**',
+            '**/.yarn/**',
+            '**/*.d.ts',
+            '**/build/**',
+            '**/coverage/**',
+            '**/dist/**',
+            '**/fixtures/**',
+            '**/fixtures/**/*.js',
+            '**/node_modules/**',
+            '**/scripts/ts-json-schema-generator.cjs',
+            '**/temp/**',
+            '**/webpack*.js',
+            'docs/docsV2/**',
+            'package-lock.json',
+            'packages/*/dist/**',
+            'packages/*/out/**',
+            'packages/client/server/**',
+            'website/.docusaurus/**',
+            'website/**',
+            'website/build/**',
+            'website/node_modules/**',
+        ],
+    },
+    {
+        plugins: {
+            'simple-import-sort': simpleImportSort,
+        },
+        rules: {
+            'simple-import-sort/imports': 'error',
+            'simple-import-sort/exports': 'error',
+        },
+    },
+    {
+        files: ['**/*.{ts,cts,mts,tsx}'],
+        rules: {
+            // Note: you must disable the base rule as it can report incorrect errors
+            'no-unused-vars': 'off',
+            '@typescript-eslint/unified-signatures': 'off', // The signatures come from VS Code, it is better to have them match the source.
+            '@typescript-eslint/no-empty-interface': 'off',
+            '@typescript-eslint/no-empty-function': 'off',
+            '@typescript-eslint/no-non-null-assertion': 'error',
+            '@typescript-eslint/prefer-literal-enum-member': 'off',
+            '@typescript-eslint/consistent-type-imports': ['error'],
+            '@typescript-eslint/no-unused-vars': [
+                'error',
+                {
+                    args: 'all',
+                    argsIgnorePattern: '^_',
+                    caughtErrors: 'all',
+                    caughtErrorsIgnorePattern: '^_',
+                    destructuredArrayIgnorePattern: '^_',
+                    varsIgnorePattern: '^_',
+                    ignoreRestSiblings: true,
+                },
+            ],
+            'n/no-missing-import': [
+                'off', // disabled because it is not working correctly
+                {
+                    tryExtensions: ['.d.ts', '.d.mts', '.d.cts', '.ts', '.cts', '.mts', '.js', '.cjs', '.mjs'],
+                },
+            ],
+        },
+    },
+    {
+        files: ['**/*.test.*', '**/__mocks__/**', '**/test/**', '**/test.*', '**/rollup.config.mjs', '**/build.mjs'],
+        rules: {
+            'n/no-extraneous-require': 'off', // Mostly for __mocks__ and test files
+            'n/no-extraneous-import': 'off',
+            'n/no-unpublished-import': 'off',
+            '@typescript-eslint/no-explicit-any': 'off', // any is allowed in tests
+            '@typescript-eslint/no-useless-constructor': 'off', // useful for tests
+            '@typescript-eslint/no-dynamic-delete': 'off', // useful for tests
+        },
+    },
+    {
+        files: ['**/jest.config.*', '**/__mocks__/**'],
+        rules: {
+            'n/no-extraneous-require': 'off',
+            'no-undef': 'off',
+        },
+    },
+    {
+        files: ['**/*.json'],
+        rules: {
+            '@typescript-eslint/no-unused-expressions': 'off',
+        },
+    },
+);

index.js

@@ -1,2 +1,2 @@
-/* eslint-disable @typescript-eslint/no-var-requires */
+/* eslint-disable @typescript-eslint/no-require-imports */
 module.exports = require('./dist/index');

package.json

@@ -19,7 +19,7 @@
     "lint": "pnpm run lint:eslint --fix && pnpm run lint:prettier",
     "lint:ci": "pnpm run lint:eslint && pnpm run lint:prettier-ci",
     "lint:eslint": "eslint .",
-    "lint:prettier": "prettier -w \"**/*.{yaml,yml,md}\"",
+    "lint:prettier": "prettier -w .",
     "lint:prettier-ci": "prettier -c \"**/*.{yaml,yml,md}\"",
     "lint:spelling": "cspell --dot \"**\"",
     "prepare": "pnpm run build",
@@ -49,27 +49,25 @@
     "url": "https://github.com/streetsidesoftware/jest-mock-vscode.git"
   },
   "devDependencies": {
+    "@eslint/js": "^9.9.0",
     "@jest/globals": "^29.7.0",
-    "@tsconfig/node18": "^18.2.4",
-    "@types/node": "^18.19.44",
-    "@types/vscode": "^1.92.0",
-    "@typescript-eslint/eslint-plugin": "^7.18.0",
-    "@typescript-eslint/parser": "^7.18.0",
-    "eslint": "^8.57.0",
-    "eslint-config-prettier": "^9.1.0",
-    "eslint-plugin-import": "^2.29.1",
-    "eslint-plugin-jest": "^28.8.0",
-    "eslint-plugin-node": "^11.1.0",
-    "eslint-plugin-prettier": "^5.2.1",
-    "eslint-plugin-promise": "^7.1.0",
+    "@tsconfig/node20": "^20.1.4",
+    "@types/node": "^20.14.15",
+    "eslint": "^9.9.0",
+    "eslint-plugin-n": "^17.10.2",
+    "eslint-plugin-simple-import-sort": "^12.1.1",
     "inject-markdown": "^3.1.0",
     "jest": "^29.7.0",
     "prettier": "^3.3.3",
     "rfdc": "^1.4.1",
     "ts-jest": "^29.2.4",
-    "typescript": "^5.5.4"
+    "typescript": "^5.5.4",
+    "typescript-eslint": "^8.1.0"
   },
   "dependencies": {
     "vscode-uri": "^3.0.8"
+  },
+  "peerDependencies": {
+    "@types/vscode": "^1.92.0"
   }
 }