chore: migrate to ESLint v9 and update deps

- Migrate to ESLint flat config
- Switch from `eslint-config-standard` to `neostandard` as the former
does not support ESLint v9 and seems to be unmaintained.
- Conform to the rules of the ESLint plugins/configs.
- Update all dependencies to their latest versions.

bin/git-node.js

@@ -27,4 +27,6 @@ Promise.all(commandFiles.map(importCommand)).then((commands) => {
     .epilogue(epilogue)
     .help('help')
     .parse();
+}).catch((err) => {
+  throw err;
 });

components/git/metadata.js

@@ -90,5 +90,6 @@ export function handler(argv) {
       if (status === false) {
         throw new Error(IGNORE);
       }
+      return undefined;
     }));
 }

eslint.config.js

@@ -0,0 +1,44 @@
+import globals from 'globals';
+import pluginJs from '@eslint/js';
+import neostandard from 'neostandard';
+import nodePlugin from 'eslint-plugin-n';
+import pluginPromise from 'eslint-plugin-promise';
+import importPlugin from 'eslint-plugin-import';
+
+export default [
+  pluginJs.configs.recommended,
+  ...neostandard(),
+  nodePlugin.configs['flat/recommended'],
+  pluginPromise.configs['flat/recommended'],
+  importPlugin.flatConfigs.recommended,
+  {
+    ignores: [
+      '**/.git',
+      '**/.nyc_output',
+      'coverage',
+      'node_modules',
+      'lib/wpt/templates',
+    ],
+    languageOptions: {
+      globals: globals.node,
+      sourceType: 'module',
+      ecmaVersion: 'latest',
+    },
+    rules: {
+      '@stylistic/semi': ['error', 'always'],
+      '@stylistic/space-before-function-paren': ['error', 'never'],
+      '@stylistic/no-multi-spaces': ['error', { ignoreEOLComments: true }],
+      camelcase: 'off',
+      '@stylistic/max-len': [
+        2,
+        100,
+        4,
+        { ignoreRegExpLiterals: true, ignoreUrls: true },
+      ],
+      '@stylistic/object-property-newline': 'off',
+      'promise/always-return': ['error', { ignoreLastCallback: true }],
+      'n/no-process-exit': 'off',
+      'n/no-unsupported-features/node-builtins': 'off',
+    },
+  },
+];

lib/ci/build-types/health_build.js

@@ -20,10 +20,10 @@ class Health {
   formatAsMarkdown() {
     const { success, pending, aborted, failed, unstable, count } = this;
     const rate = `${(success / (count - pending - aborted) * 100).toFixed(2)}%`;
-    // eslint-disable-next-line max-len
-    let result = '| UTC Time         | RUNNING | SUCCESS | UNSTABLE | ABORTED | FAILURE | Green Rate |\n';
-    // eslint-disable-next-line max-len
-    result += '| ---------------- | ------- | ------- | -------- | ------- | ------- | ---------- |\n';
+    let result =
+      '| UTC Time         | RUNNING | SUCCESS | UNSTABLE | ABORTED | FAILURE | Green Rate |\n';
+    result +=
+      '| ---------------- | ------- | ------- | -------- | ------- | ------- | ---------- |\n';
     const time = new Date().toISOString().slice(0, 16).replace('T', ' ');
     result += `| ${time} | ${pad(pending, 7)} | ${pad(success, 8)}|`;
     result += ` ${pad(unstable, 8)} | ${pad(aborted, 7)} | ${pad(failed, 7)} |`;

lib/ci/build-types/test_build.js

@@ -76,6 +76,8 @@ export class TestBuild extends Job {
         return result;
       }
     }
+
+    return undefined;
   }
 
   get commit() {

lib/ci/ci_failure_parser.js

@@ -204,7 +204,6 @@ const FAILURE_FILTERS = [{
       context: { index: 0, contextBefore: 0, contextAfter: 0 }
     }, {
       pattern:
-        // eslint-disable-next-line max-len
         /error: Your local changes to the following files[\s\S]+Failed to merge in the changes./g,
       context: { index: 0, contextBefore: 0, contextAfter: 0 }
     }, {

lib/cli.js

@@ -81,6 +81,7 @@ export default class CLI {
       return defaultAnswer;
     }
 
+    // eslint-disable-next-line import/namespace -- Plugin can't validate computed reference here
     const answer = await inquirer[questionType]({
       message: question,
       default: defaultAnswer

lib/collaborators.js

@@ -105,15 +105,13 @@ function parseCollaborators(readme, cli) {
 
   // We also assume that TSC & TSC Emeriti are also listed as collaborators
   CONTACT_RE.lastIndex = tscIndex;
-  // eslint-disable-next-line no-cond-assign
   while ((m = CONTACT_RE.exec(readme)) && CONTACT_RE.lastIndex < tscrIndex) {
     const login = m[1].toLowerCase();
     const user = new Collaborator(m[1], m[2], m[3], TSC);
     collaborators.set(login, user);
   }
 
   CONTACT_RE.lastIndex = clIndex;
-  // eslint-disable-next-line no-cond-assign
   while ((m = CONTACT_RE.exec(readme)) &&
     CONTACT_RE.lastIndex < cleIndex) {
     const login = m[1].toLowerCase();

lib/prepare_security.js

@@ -56,8 +56,8 @@ export default class PrepareSecurityRelease extends SecurityRelease {
     await this.closePRWithLabel('Security Release');
 
     const updateFolder = await this.cli.prompt(
-      // eslint-disable-next-line max-len
-      `Would you like to update the next-security-release folder to ${vulnerabilityJSON.releaseDate}?`,
+      `Would you like to update the next-security-release folder to ${
+        vulnerabilityJSON.releaseDate}?`,
       { defaultAnswer: true });
     if (updateFolder) {
       this.updateReleaseFolder(

lib/release/utils.js

@@ -21,12 +21,10 @@ export function getStartLTSBlurb({ date, ltsCodename, versionComponents }) {
   const eol = eolDate.toLocaleString('en-US', dateFormat);
   const { major } = versionComponents;
   return [
-    /* eslint-disable max-len */
     `This release marks the transition of Node.js ${major}.x into Long Term Support (LTS)`,
     `with the codename '${ltsCodename}'. The ${major}.x release line now moves into "Active LTS"`,
     `and will remain so until ${mainStart}. After that time, it will move into`,
     `"Maintenance" until end of life in ${eol}.`
-    /* eslint-enable */
   ].join('\n');
 }
 

lib/team_info.js

@@ -67,7 +67,6 @@ TeamInfo.update = async function(cli, request, content) {
 
   const blocks = new Map();
   let m;
-  // eslint-disable-next-line no-cond-assign
   while ((m = RE.exec(content))) {
     const [, org, team] = m;
     const mapKey = key(org, team);

lib/update-v8/majorUpdate.js

@@ -119,7 +119,6 @@ function updateV8Deps() {
         path: v8Dep.repo
       })), newV8Version);
       if (deps.length === 0) return;
-      /* eslint-disable no-await-in-loop */
       for (const dep of deps) {
         if (dep.gitignore) {
           if (typeof dep.gitignore === 'string') {
@@ -132,7 +131,6 @@ function updateV8Deps() {
         const thePath = path.join(ctx.nodeDir, 'deps/v8', dep.path);
         await fetchFromGit(thePath, repo, commit);
       }
-      /* eslint-enable */
     }
   };
 }

lib/voting_session.js

@@ -10,6 +10,7 @@ import {
   getEditor, isGhAvailable
 } from './utils.js';
 
+// eslint-disable-next-line import/no-unresolved
 import voteUsingGit from '@node-core/caritat/voteUsingGit';
 import * as yaml from 'js-yaml';
 
@@ -97,7 +98,7 @@ export default class VotingSession extends Session {
         cp.stdin.end(share);
         const [code] = await Promise.race([
           once(cp, 'exit'),
-          once(cp, 'error').then((er) => Promise.reject(er))
+          once(cp, 'error').then((er) => { throw er; })
         ]);
         if (code !== 0) throw new Error('failed', { cause: code });
         return Buffer.concat(await stdout);

package.json

@@ -40,7 +40,7 @@
     "@pkgjs/nv": "^0.2.2",
     "branch-diff": "^3.1.1",
     "chalk": "^5.4.1",
-    "changelog-maker": "^4.3.1",
+    "changelog-maker": "^4.3.2",
     "cheerio": "^1.0.0",
     "clipboardy": "^4.0.0",
     "core-validate-commit": "^4.1.0",
@@ -53,18 +53,21 @@
     "log-symbols": "^7.0.0",
     "ora": "^8.1.1",
     "replace-in-file": "^8.3.0",
-    "undici": "^7.2.2",
+    "semver": "^7.6.3",
+    "undici": "^7.3.0",
     "which": "^5.0.0",
     "yargs": "^17.7.2"
   },
   "devDependencies": {
+    "@eslint/js": "^9.19.0",
     "@reporters/github": "^1.7.2",
     "c8": "^10.1.3",
-    "eslint": "^8.57.1",
-    "eslint-config-standard": "^17.1.0",
+    "eslint": "^9.19.0",
     "eslint-plugin-import": "^2.31.0",
-    "eslint-plugin-n": "^16.6.2",
-    "eslint-plugin-promise": "^6.6.0",
+    "eslint-plugin-n": "^17.15.1",
+    "eslint-plugin-promise": "^7.2.1",
+    "globals": "^15.14.0",
+    "neostandard": "^0.12.0",
     "sinon": "^19.0.2"
   }
 }

test/fixtures/release/expected-test-process-release.js

@@ -1,5 +1,6 @@
 'use strict';
 
+// eslint-disable-next-line n/no-missing-require
 require('../common');
 
 const assert = require('assert');

test/fixtures/release/original-test-process-release.js

@@ -1,5 +1,6 @@
 'use strict';
 
+// eslint-disable-next-line n/no-missing-require
 require('../common');
 
 const assert = require('assert');

test/unit/ci_start.test.js

@@ -1,3 +1,4 @@
+/* eslint-disable import/no-named-as-default-member */
 import { describe, it, before, afterEach } from 'node:test';
 import assert from 'assert';
 

test/unit/pr_checker.test.js

@@ -1,3 +1,4 @@
+/* eslint-disable import/no-named-as-default-member */
 import { describe, it, before, after, afterEach } from 'node:test';
 import assert from 'node:assert';
 

test/unit/pr_data.test.js

@@ -1,3 +1,4 @@
+/* eslint-disable import/no-named-as-default-member */
 import { describe, it } from 'node:test';
 import assert from 'node:assert';
 

test/unit/prepare_release.test.js

@@ -31,12 +31,10 @@ describe('prepare_release: utils.getLTSMaintenanceStartDate', () => {
 describe('prepare_release: utils.getStartLTSBlurb', () => {
   it('generates first LTS release text with correct dates', () => {
     const expected = [
-      /* eslint-disable max-len */
       'This release marks the transition of Node.js 14.x into Long Term Support (LTS)',
       'with the codename \'Fermium\'. The 14.x release line now moves into "Active LTS"',
       'and will remain so until October 2021. After that time, it will move into',
       '"Maintenance" until end of life in April 2023.'
-      /* eslint-enable max-len */
     ].join('\n');
     const text = utils.getStartLTSBlurb({
       date: '2020-10-27',

test/unit/team_info.test.js

@@ -1,3 +1,4 @@
+/* eslint-disable import/no-named-as-default-member */
 import { describe, it, before, after } from 'node:test';
 import assert from 'node:assert';
 

test/unit/wpt_updater.test.js

@@ -1,3 +1,4 @@
+/* eslint-disable import/no-named-as-default-member */
 import { describe, it, before, after } from 'node:test';
 import assert from 'node:assert';
 import TestCLI from '../fixtures/test_cli.js';