Replace shell parameter expansion with cross-platform Node.js script

Co-authored-by: blackboxprogramming <118287761+blackboxprogramming@users.noreply.github.com>

.gitignore

@@ -13,3 +13,7 @@ pnpm-lock.yaml
 .tmp
 .vscode
 .idea
+static/health.json
+static/health/
+static/version.json
+static/version/

package.json

@@ -6,7 +6,7 @@
   "scripts": {
     "dev": "docusaurus start",
     "build": "npm run generate:meta && docusaurus build",
-    "start": "docusaurus serve --dir build --host 0.0.0.0 --port ${PORT:-3000}",
+    "start": "node scripts/serve.js",
     "serve": "npm run start",
     "generate:meta": "node scripts/generateMeta.js"
   },

scripts/serve.js

@@ -0,0 +1,15 @@
+#!/usr/bin/env node
+
+const { spawn } = require('child_process');
+
+const port = process.env.PORT || '3000';
+const args = ['serve', '--dir', 'build', '--host', '0.0.0.0', '--port', port];
+
+const child = spawn('docusaurus', args, {
+  stdio: 'inherit',
+  shell: true
+});
+
+child.on('exit', (code) => {
+  process.exit(code);
+});