fix: added step for copying frontend-config from env var.

Author: n3rdc4ptn

server.js

@@ -4,11 +4,30 @@ import { fileURLToPath } from 'node:url';
 import path from 'node:path';
 import dotenv from 'dotenv';
 import proxy from './server/app.js';
+import { copyFileSync } from 'node:fs';
 
 dotenv.config();
 
+const isDev = process.argv.includes('--dev');
+
 const __filename = fileURLToPath(import.meta.url);
 const __dirname = path.dirname(__filename);
+const frontendConfigLocation = isDev
+  ? 'public/frontend-config.json'
+  : 'dist/client/frontend-config.json';
+
+if (
+  process.env.FRONTEND_CONFIG_PATH !== undefined &&
+  process.env.FRONTEND_CONFIG_PATH.length > 0
+) {
+  console.log(
+    'FRONTEND_CONFIG_PATH is specified. Will copy the frontend-config from there.',
+  );
+  console.log(
+    `  Copying ${process.env.FRONTEND_CONFIG_PATH} to ${frontendConfigLocation}`,
+  );
+  copyFileSync(process.env.FRONTEND_CONFIG_PATH, frontendConfigLocation);
+}
 
 const fastify = Fastify({
   logger: true,
@@ -20,7 +39,7 @@ fastify.register(proxy, {
 
 await fastify.register(FastifyVite, {
   root: __dirname,
-  dev: process.argv.includes('--dev'),
+  dev: isDev,
   spa: true,
 });