feat: Initial clean release of CHM

packages/tools/fuzzer/utils/openDebugSession.ts

@@ -0,0 +1,50 @@
+import Logger from '@joplin/utils/Logger';
+import ClientPool from '../ipc/ClientPool';
+import { createInterface } from 'readline/promises';
+
+const logger = Logger.create('openDebugSession');
+
+const openDebugSession = async (clients: ClientPool) => {
+	const allClients = clients.clients;
+	const clientChoices = allClients.map((client, index) => {
+		return `${index}: ${client.label}`;
+	}).join('\n');
+
+	const askForClient = async (questionPrefix = '') => {
+		// Recreate the readline interface each time to avoid conflicting
+		// with the debug sessions for the individual clients.
+		const readlineInterface = createInterface({
+			input: process.stdin,
+			output: process.stdout,
+		});
+		try {
+			const clientChoice = await readlineInterface.question(
+				`${questionPrefix}Select a client from:\n${clientChoices}\nclient: `,
+			);
+			if (clientChoice.trim() === '' || clientChoice === 'exit') {
+				return null;
+			}
+
+			const asNumber = Number(clientChoice);
+			if (!isFinite(asNumber) || Math.floor(asNumber) !== asNumber) {
+				return askForClient('Please input an integer. ');
+			}
+
+			if (asNumber < 0 || asNumber >= allClients.length) {
+				return askForClient('Choice out of range. ');
+			}
+
+			return allClients[asNumber];
+		} finally {
+			readlineInterface.close();
+		}
+	};
+
+	for (let client = await askForClient(); client; client = await askForClient()) {
+		logger.info('Switching to client', client.getHelpText());
+
+		await client.startCliDebugSession();
+	}
+};
+
+export default openDebugSession;