Add version-guard to silent failure on old node

.github/workflows/old-test.yml

@@ -42,5 +42,5 @@ jobs:
         run: npm install
 
       - name: Test that the command line program exits cleanly.
-        run: ./bin/cmd.js
+        run: ./bin/cmd.cjs
         shell: bash

bin/cmd.cjs

@@ -0,0 +1,3 @@
+#!/usr/bin/env node
+
+require('version-guard')('../cli.js', 12, 22)

cli.js

@@ -0,0 +1,4 @@
+import { cli } from 'standard-engine'
+import options from './options.js'
+
+cli(options)

package.json

@@ -8,7 +8,7 @@
     "url": "https://feross.org"
   },
   "bin": {
-    "standard": "bin/cmd.js"
+    "standard": "bin/cmd.cjs"
   },
   "type": "module",
   "bugs": {
@@ -22,7 +22,8 @@
     "eslint-plugin-n": "^15.1.0",
     "eslint-plugin-promise": "^6.0.0",
     "eslint-plugin-react": "^7.28.0",
-    "standard-engine": "^15.0.0"
+    "standard-engine": "^15.0.0",
+    "version-guard": "^1.1.0"
   },
   "devDependencies": {
     "cross-spawn": "^7.0.3",
@@ -70,7 +71,7 @@
   },
   "scripts": {
     "test": "npm run test-internal && npm run test-external",
-    "test-internal": "./bin/cmd.js --verbose && tape test/*.js",
+    "test-internal": "./bin/cmd.cjs --verbose && tape test/*.js",
     "test-external": "tape test/external/*.js",
     "update-authors": "./tools/update-authors.sh && hallmark --fix AUTHORS.md"
   },

test/api.js

@@ -3,7 +3,7 @@ import standard from '../index.js'
 
 test('api: lintFiles', async (t) => {
   t.plan(2)
-  const [result] = await standard.lintFiles(['bin/cmd.js'])
+  const [result] = await standard.lintFiles(['bin/cmd.cjs'])
   t.equal(typeof result, 'object', 'result is an object')
   t.equal(result.errorCount, 0)
 })

test/cmd.js

@@ -2,7 +2,7 @@ import { fileURLToPath } from 'node:url'
 import test from 'tape'
 import crossSpawn from 'cross-spawn'
 
-const CMD_PATH = fileURLToPath(new URL('../bin/cmd.js', import.meta.url))
+const CMD_PATH = fileURLToPath(new URL('../bin/cmd.cjs', import.meta.url))
 
 test('command line usage: --help', t => {
   t.plan(1)

test/external/clone.js

@@ -20,7 +20,7 @@ const testPkgs = JSON.parse(json)
 
 const GIT = 'git'
 const NPM = 'npm'
-const STANDARD = fileURLToPath(new URL('../../bin/cmd.js', import.meta.url))
+const STANDARD = fileURLToPath(new URL('../../bin/cmd.cjs', import.meta.url))
 const TMP = new URL('../../tmp/', import.meta.url)
 const PARALLEL_LIMIT = Math.ceil(cpus().length / 2)