refactor: Add native Python runner runtime env var (#19109)

Author: ivov

packages/@n8n/api-types/src/frontend-settings.ts

@@ -60,6 +60,7 @@ export interface FrontendSettings {
 	versionCli: string;
 	nodeJsVersion: string;
 	concurrency: number;
+	isNativePythonRunnerEnabled: boolean;
 	authCookie: {
 		secure: boolean;
 	};

packages/cli/src/services/frontend.service.ts

@@ -131,6 +131,8 @@ export class FrontendService {
 			nodeJsVersion: process.version.replace(/^v/, ''),
 			versionCli: N8N_VERSION,
 			concurrency: this.globalConfig.executions.concurrency.productionLimit,
+			isNativePythonRunnerEnabled:
+				this.globalConfig.taskRunners.enabled && process.env.N8N_NATIVE_PYTHON_RUNNER === 'true',
 			authCookie: {
 				secure: this.globalConfig.auth.cookie.secure,
 			},

packages/frontend/editor-ui/src/__tests__/defaults.ts

@@ -102,6 +102,7 @@ export const defaultSettings: FrontendSettings = {
 	versionCli: '',
 	nodeJsVersion: '',
 	concurrency: -1,
+	isNativePythonRunnerEnabled: false,
 	versionNotifications: {
 		enabled: true,
 		endpoint: '',

packages/frontend/editor-ui/src/components/ParameterInput.vue

@@ -241,6 +241,11 @@ const parameterOptions = computed(() => {
 	const options = hasRemoteMethod.value ? remoteParameterOptions.value : props.parameter.options;
 	const safeOptions = (options ?? []).filter(isValidParameterOption);
 
+	// temporary filter until native Python runner is GA
+	if (props.parameter.name === 'language' && !settingsStore.isNativePythonRunnerEnabled) {
+		return safeOptions.filter((o) => o.value !== 'pythonNative');
+	}
+
 	return safeOptions;
 });
 

packages/frontend/editor-ui/src/stores/settings.store.ts

@@ -70,6 +70,8 @@ export const useSettingsStore = defineStore(STORES.SETTINGS, () => {
 
 	const concurrency = computed(() => settings.value.concurrency);
 
+	const isNativePythonRunnerEnabled = computed(() => settings.value.isNativePythonRunnerEnabled);
+
 	const isConcurrencyEnabled = computed(() => concurrency.value !== -1);
 
 	const isPublicApiEnabled = computed(() => api.value.enabled);
@@ -329,6 +331,7 @@ export const useSettingsStore = defineStore(STORES.SETTINGS, () => {
 		security,
 		nodeJsVersion,
 		concurrency,
+		isNativePythonRunnerEnabled,
 		isConcurrencyEnabled,
 		isPublicApiEnabled,
 		isSwaggerUIEnabled,

packages/nodes-base/nodes/Code/Code.node.ts

@@ -3,7 +3,6 @@ import { NodesConfig, TaskRunnersConfig } from '@n8n/config';
 import { Container } from '@n8n/di';
 import set from 'lodash/set';
 import {
-	type INodeProperties,
 	NodeConnectionTypes,
 	UserError,
 	type CodeExecutionMode,
@@ -26,7 +25,7 @@ import { PythonTaskRunnerSandbox } from './PythonTaskRunnerSandbox';
 import { getSandboxContext } from './Sandbox';
 import { addPostExecutionWarning, standardizeOutput } from './utils';
 
-const { CODE_ENABLE_STDOUT, N8N_NATIVE_PYTHON_RUNNER } = process.env;
+const { CODE_ENABLE_STDOUT } = process.env;
 
 class PythonDisabledError extends UserError {
 	constructor() {
@@ -36,43 +35,6 @@ class PythonDisabledError extends UserError {
 	}
 }
 
-const getV2LanguageProperty = (): INodeProperties => {
-	const options = [
-		{
-			name: 'JavaScript',
-			value: 'javaScript',
-			action: 'Code in JavaScript',
-		},
-		{
-			name: 'Python (Beta)',
-			value: 'python',
-			action: 'Code in Python (Beta)',
-		},
-	];
-
-	if (N8N_NATIVE_PYTHON_RUNNER === 'true') {
-		options.push({
-			name: 'Python (Native) (Beta)',
-			value: 'pythonNative',
-			action: 'Code in Python (Native) (Beta)',
-		});
-	}
-
-	return {
-		displayName: 'Language',
-		name: 'language',
-		type: 'options',
-		noDataExpression: true,
-		displayOptions: {
-			show: {
-				'@version': [2],
-			},
-		},
-		options,
-		default: 'javaScript',
-	};
-};
-
 export class Code implements INodeType {
 	description: INodeTypeDescription = {
 		displayName: 'Code',
@@ -108,7 +70,35 @@ export class Code implements INodeType {
 				],
 				default: 'runOnceForAllItems',
 			},
-			getV2LanguageProperty(),
+			{
+				displayName: 'Language',
+				name: 'language',
+				type: 'options',
+				noDataExpression: true,
+				displayOptions: {
+					show: {
+						'@version': [2],
+					},
+				},
+				options: [
+					{
+						name: 'JavaScript',
+						value: 'javaScript',
+						action: 'Code in JavaScript',
+					},
+					{
+						name: 'Python (Beta)',
+						value: 'python',
+						action: 'Code in Python (Beta)',
+					},
+					{
+						name: 'Python (Native) (Beta)',
+						value: 'pythonNative',
+						action: 'Code in Python (Native) (Beta)',
+					},
+				],
+				default: 'javaScript',
+			},
 			{
 				displayName: 'Language',
 				name: 'language',