dougal-software/lib/www/server/index.js

#!/usr/bin/node

async function main () {
	// Check that we're running against the correct database version
	const version = require('./lib/version');
	console.log("Running version", await version.describe());
	version.compatible()
	.then( () => {
		const api = require('./api');
		const ws = require('./ws');

		const { fork } = require('child_process');

		const server = api.start(process.env.HTTP_PORT || 3000, process.env.HTTP_PATH);
		ws.start(server);

		const eventManagerPath = [__dirname, "events"].join("/");
		const eventManager = fork(eventManagerPath, /*{ stdio: 'ignore' }*/);

		process.on('exit', () => eventManager.kill());
	})
	.catch( ({current, wanted}) => {
		console.error(`Fatal error: incompatible database schema version ${current} (wanted: ${wanted})`);
		process.exit(1);
	});
}

main();