introduced yarn workspace

packages/electron/src/electron-wait-react.js

@@ -0,0 +1,27 @@
+const net = require('net');
+const port = 5000;
+
+process.env.ELECTRON_START_URL = `http://localhost:${port}`;
+
+const client = new net.Socket();
+
+let startedElectron = false;
+const tryConnection = () => client.connect({port: port}, () => {
+        client.end();
+        if(!startedElectron) {
+            console.log('starting electron');
+            startedElectron = true;
+            const exec = require('child_process').exec;
+            const electron = exec('yarn electron');
+            electron.stdout.on("data", function(data) {
+                console.log("stdout: " + data.toString());
+            });
+        }
+    }
+);
+
+tryConnection();
+
+client.on('error', (error) => {
+    setTimeout(tryConnection, 1000);
+});