joplin/ElectronClient/app/main.js

// This is the basic initialization for the Electron MAIN process

// Make it possible to require("/lib/...") without specifying full path
require("app-module-path").addPath(__dirname);

const electronApp = require("electron").app;
const { ElectronAppWrapper } = require("./ElectronAppWrapper");
const { initBridge } = require("./bridge");
const { Logger } = require("lib/logger.js");
const { FsDriverNode } = require("lib/fs-driver-node.js");

process.on("unhandledRejection", (reason, p) => {
	console.error("Unhandled promise rejection", p, "reason:", reason);
	process.exit(1);
});

// Flags are parsed properly in BaseApplication, however it's better to have
// the env as early as possible to enable debugging capabilities.
function envFromArgs(args) {
	if (!args) return "prod";
	const envIndex = args.indexOf("--env");
	const devIndex = args.indexOf("dev");
	if (envIndex === devIndex - 1) return "dev";
	return "prod";
}

Logger.fsDriver_ = new FsDriverNode();

const env = envFromArgs(process.argv);

const wrapper = new ElectronAppWrapper(electronApp, env);

initBridge(wrapper);

wrapper.start().catch(error => {
	console.error("Electron App fatal error:");
	console.error(error);
});