Set up test n8n dir

Author: ivov

packages/cli/test/benchmarks/init.ts

@@ -1,7 +1,38 @@
+import { tmpdir } from 'node:os';
+import { join } from 'node:path';
+import { mkdirSync, mkdtempSync, writeFileSync } from 'node:fs';
+
 import { Config } from '@oclif/core';
 import { Start } from '@/commands/start';
 import * as testDb from '../integration/shared/testDb';
+import Container from 'typedi';
+import { InstanceSettings } from 'n8n-core';
+
+/** Set up a temp `.n8n` dir for benchmarks to use. */
+function n8nDir() {
+	const baseDir = join(tmpdir(), 'n8n-benchmarks/');
+
+	mkdirSync(baseDir, { recursive: true });
+
+	const subDir = mkdtempSync(baseDir);
+	const n8nDir = join(subDir, '.n8n');
+
+	mkdirSync(n8nDir);
+
+	writeFileSync(
+		join(n8nDir, 'config'),
+		JSON.stringify({ encryptionKey: 'temp_encryption_key', instanceId: '123' }),
+		'utf-8',
+	);
+
+	const instanceSettings = Container.get(InstanceSettings);
+	instanceSettings.n8nFolder = n8nDir;
+	Container.set(InstanceSettings, instanceSettings);
+
+	console.log('n8nDir', n8nDir);
+}
 
+/** Initialize an n8n main process for benchmarking. */
 async function mainProcess() {
 	const args: string[] = [];
 	const _config = new Config({ root: __dirname });
@@ -13,6 +44,7 @@ async function mainProcess() {
 }
 
 export const init = {
+	n8nDir,
 	database: testDb.init,
 	mainProcess,
 };

packages/cli/test/benchmarks/main.ts

@@ -9,6 +9,8 @@ async function main() {
 	const _bench = new Bench({ time: 0, iterations: 1 }); // @TEMP: Remove arg
 	const bench = withCodSpeed(_bench);
 
+	process.env.NODE_ENV = 'test';
+
 	register(bench);
 
 	// await bench.warmup(); // @TODO: Restore

packages/cli/test/benchmarks/webhook.benchmark.ts

@@ -12,13 +12,14 @@ export function webhook(bench: Bench) {
 			beforeAll: async () => {
 				console.log('beforeAll start');
 
-				await init.database();
+				init.n8nDir();
+				await init.database(); // @TODO: Test with Postgres
 				await init.mainProcess();
 
 				console.log('beforeAll end');
 			},
 			afterAll: () => {
-				// stop process // @TODO
+				// @TODO stop main process gracefully
 			},
 		},
 	);

packages/core/src/InstanceSettings.ts

@@ -21,7 +21,7 @@ export class InstanceSettings {
 	private readonly userHome = this.getUserHome();
 
 	/** The path to the n8n folder in which all n8n related data gets saved */
-	readonly n8nFolder = path.join(this.userHome, '.n8n');
+	n8nFolder = path.join(this.userHome, '.n8n');
 
 	/** The path to the folder where all generated static assets are copied to */
 	readonly staticCacheDir = path.join(this.userHome, '.cache/n8n/public');