chore(deps): upgrade ESLint to v9 (#200)

Co-authored-by: Timothy Jones <[email protected]>

eslint.config.mjs

@@ -0,0 +1,67 @@
+import globals from "globals";
+import js from "@eslint/js";
+import jest from "eslint-plugin-jest";
+import eslintConfigPrettier from "eslint-config-prettier";
+
+/**
+ * @type {import("eslint").Linter.Config}
+ */
+export default [
+  {
+    "ignores": [".git/", ".github/", ".husky/", ".scannerwork/", ".vscode/", "coverage/", "node_modules/"],
+    "name": "Files to ignore"
+  },
+  {
+    ...eslintConfigPrettier,
+    "name": "Prettier"
+  },
+  {
+    ...js.configs.recommended,
+    "files": ["**/*.{js,cjs,mjs}"],
+    "languageOptions": {
+      "ecmaVersion": 2023
+    },
+    "name": "JavaScript files",
+    "rules": {
+      ...js.configs.recommended.rules,
+      "no-var": "error",
+      "no-unused-vars": [
+        "error",
+        {
+          "argsIgnorePattern": "_.*"
+        }
+      ]
+    }
+  },
+  {
+    "files": ["**/*.mjs"],
+    "languageOptions": {
+      "sourceType": "module"
+    },
+    "name": "JavaScript modules"
+  },
+  {
+    "files": ["**/*.{js,cjs,mjs}"],
+    "languageOptions": {
+      "globals": {
+        ...globals.node
+      }
+    },
+    "name": "Node.js files"
+  },
+  {
+    ...jest.configs["flat/recommended"],
+    "files": ["test/**/*{spec,test}.{js,cjs,mjs}", "test/mocks/jest-mocks.js"],
+    "languageOptions": {
+      "globals": {
+        ...globals.jest
+      }
+    },
+    "name": "Test files",
+    "rules": {
+      ...jest.configs["flat/recommended"].rules,
+      "jest/prefer-expect-assertions": "off",
+      "jest/expect-expect": "off"
+    }
+  }
+];

index.js

@@ -69,6 +69,7 @@ module.exports = async function standardVersion(argv) {
             : false,
       };
       break;
+      // eslint-disable-next-line no-unused-vars
     } catch (err) {
       /* This probably shouldn't be empty? */
     }

package.json

@@ -4,8 +4,9 @@
   "description": "replacement for `npm version` with automatic CHANGELOG generation",
   "bin": "bin/cli.js",
   "scripts": {
-    "fix": "eslint . --fix",
-    "posttest": "eslint . && npm run format:check",
+    "eslint": "eslint .",
+    "eslint:fix": "npm run eslint -- --fix",
+    "posttest": "npm run eslint && npm run format:check",
     "format:base": "prettier \"./**/*.{ts,js}\"",
     "format:fix": "npm run format:base -- --write",
     "format:check": "npm run format:base -- --check",
@@ -56,12 +57,13 @@
     "yargs": "^17.7.2"
   },
   "devDependencies": {
-    "eslint": "^8.57.1",
+    "@eslint/js": "^9.13.0",
+    "eslint": "^9.13.0",
     "eslint-config-prettier": "^9.1.0",
     "eslint-plugin-import": "^2.31.0",
-    "eslint-plugin-jest": "^27.9.0",
-    "eslint-plugin-n": "^15.7.0",
-    "eslint-plugin-promise": "^6.6.0",
+    "eslint-plugin-jest": "^28.8.3",
+    "eslint-plugin-n": "^17.11.1",
+    "eslint-plugin-promise": "^7.1.0",
     "jest": "^29.7.0",
     "jest-serial-runner": "^1.2.1",
     "prettier": "^3.3.3",