refactor: Set up Cypress as pnpm workspace (no-changelog) (#6049)

Co-authored-by: कारतोफ्फेलस्क्रिप्ट™ <aditya@netroy.in>

cypress/scripts/run-e2e.js

@@ -0,0 +1,71 @@
+#!/usr/bin/env node
+const { spawn } = require('child_process');
+const { mkdirSync, mkdtempSync } = require('fs');
+const { tmpdir } = require('os');
+const { join } = require('path');
+
+function runTests(options) {
+	const testsDir = join(tmpdir(), 'n8n-e2e/');
+	mkdirSync(testsDir, { recursive: true });
+
+	const userFolder = mkdtempSync(testsDir);
+
+	process.env.N8N_USER_FOLDER = userFolder;
+	process.env.E2E_TESTS = 'true';
+	process.env.NODE_OPTIONS = '--dns-result-order=ipv4first';
+	process.env.VUE_APP_MAX_PINNED_DATA_SIZE = `${16 * 1024}`;
+
+	if (options.customEnv) {
+		Object.keys(options.customEnv).forEach((key) => {
+			process.env[key] = options.customEnv[key];
+		});
+	}
+
+	const cmd = `start-server-and-test ${options.startCommand} ${options.url} '${options.testCommand}'`;
+	const testProcess = spawn(cmd, [], { stdio: 'inherit', shell: true });
+
+	// Listen for termination signals to properly kill the test process
+	process.on('SIGINT', () => {
+		testProcess.kill('SIGINT');
+	});
+
+	process.on('SIGTERM', () => {
+		testProcess.kill('SIGTERM');
+	});
+
+	testProcess.on('exit', (code) => {
+		process.exit(code);
+	});
+}
+
+const scenario = process.argv[2];
+
+switch (scenario) {
+	case 'ui':
+		runTests({
+			startCommand: 'start',
+			url: 'http://localhost:5678/favicon.ico',
+			testCommand: 'cypress open',
+		});
+		break;
+	case 'dev':
+		runTests({
+			startCommand: 'dev',
+			url: 'http://localhost:8080/favicon.ico',
+			testCommand: 'cypress open',
+			customEnv: {
+				CYPRESS_BASE_URL: 'http://localhost:8080',
+			},
+		});
+		break;
+	case 'all':
+		runTests({
+			startCommand: 'start',
+			url: 'http://localhost:5678/favicon.ico',
+			testCommand: 'cypress run --headless',
+		});
+		break;
+	default:
+		console.error('Unknown scenario');
+		process.exit(1);
+}