Demo - Support node v17+ (#61)

* Support breaking change introduced in Node.js v17

* Update message

* actually set the node variable

* Use node script instead

* add node-version file for most managers

* use a better name

demo/.node-version

@@ -0,0 +1 @@
+v16.19.0

demo/package.json

@@ -5,11 +5,13 @@
   "private": true,
   "scripts": {
     "build": "webpack",
-    "start": "npm i && webpack-dev-server --open"
+    "serve": "npm i && webpack-dev-server --open",
+    "start": "node scripts/start.js npm run serve"
   },
   "license": "ISC",
   "devDependencies": {
     "clean-webpack-plugin": "^0.1.19",
+    "cross-env": "^7.0.3",
     "webpack": "^4.23.1",
     "webpack-cli": "^3.1.2",
     "webpack-dev-server": "^3.1.10"

demo/scripts/start.js

@@ -0,0 +1,24 @@
+#!/usr/bin/env node
+
+const { spawn } = require('child_process');
+
+const args = process.argv.slice(2);
+
+console.log(`Running on Node.js ${process.version}.`);
+
+const match = /v(\d+)/.exec(process.version);
+
+const needsOpenSslLegacyProvider = match && match[1] > 16;
+
+needsOpenSslLegacyProvider && console.warn('Setting --openssl-legacy-provider to support Node.js v17+.');
+
+const child = spawn('cross-env',
+  needsOpenSslLegacyProvider ? ['NODE_OPTIONS=--openssl-legacy-provider', ...args] : args, {
+    shell: true,
+    stdio: 'inherit'
+  }
+);
+
+child.on('exit', function (code) {
+  process.exit(code)
+})