⚡ Support versioned nodes

packages/cli/src/NodeTypes.ts

@@ -40,6 +40,10 @@ class NodeTypesClass implements INodeTypes {
 		return this.nodeTypes[nodeType].type;
 	}
 
+	/**
+	 * Variant of `getByNameAndVersion` that includes the node's source path,
+	 * to be used for locating the node's `/translations` dir.
+	 */
 	getWithPath(
 		nodeTypeName: string,
 		version: number,

packages/cli/src/Server.ts

@@ -145,7 +145,7 @@ import { InternalHooksManager } from './InternalHooksManager';
 import { TagEntity } from './databases/entities/TagEntity';
 import { WorkflowEntity } from './databases/entities/WorkflowEntity';
 import { NameRequest } from './WorkflowHelpers';
-import { getTranslationPath } from './TranslationHelpers';
+import { getExpectedNodeTranslationPath } from './TranslationHelpers';
 
 require('body-parser-xml')(bodyParser);
 
@@ -1186,23 +1186,26 @@ class App {
 					if (language === 'en') {
 						return nodeInfos.reduce<INodeTypeDescription[]>((acc, { name, version }) => {
 							const { description } = nodeTypes.getByNameAndVersion(name, version);
-							if (description) acc.push(description);
+							acc.push(description);
 							return acc;
 						}, []);
 					}
 
-					// add node translations where available
-					return nodeInfos.reduce<INodeTypeDescription[]>((acc, { name, version }) => {
-						const { description, sourcePath } = nodeTypes.getWithPath(name, version);
-						const mainTranslationPath = getTranslationPath(sourcePath, language);
+					const nodeTypesWithTranslations: INodeTypeDescription[] = [];
 
-						if (description && existsSync(mainTranslationPath)) {
-							description.translation = require(mainTranslationPath);
+					for (const { name, version } of nodeInfos) {
+						const { description, sourcePath } = nodeTypes.getWithPath(name, version);
+						// eslint-disable-next-line no-await-in-loop
+						const nodeTranslationPath = await getExpectedNodeTranslationPath(sourcePath, language);
+
+						if (existsSync(nodeTranslationPath)) {
+							description.translation = require(nodeTranslationPath);
 						}
 
-						if (description) acc.push(description);
-						return acc;
-					}, []);
+						nodeTypesWithTranslations.push(description);
+					}
+
+					return nodeTypesWithTranslations;
 				},
 			),
 		);

packages/cli/src/TranslationHelpers.ts

@@ -1,8 +1,39 @@
 import { join, dirname } from 'path';
+import { readdir } from 'fs/promises';
+import { Dirent } from 'fs';
 
-/**
- * Retrieve the path to the translation file for a node.
- */
-export function getTranslationPath(nodeSourcePath: string, language: string): string {
-	return join(dirname(nodeSourcePath), 'translations', `${language}.js`);
+const ALLOWED_VERSIONED_DIRNAME_LENGTH = [2, 3]; // v1, v10
+
+function isVersionedDirname(dirent: Dirent) {
+	if (!dirent.isDirectory()) return false;
+
+	return (
+		ALLOWED_VERSIONED_DIRNAME_LENGTH.includes(dirent.name.length) &&
+		dirent.name.toLowerCase().startsWith('v')
+	);
+}
+
+async function getMaxVersion(from: string) {
+	const entries = await readdir(from, { withFileTypes: true });
+
+	const dirnames = entries.reduce<string[]>((acc, cur) => {
+		if (isVersionedDirname(cur)) acc.push(cur.name);
+		return acc;
+	}, []);
+
+	if (!dirnames.length) return null;
+
+	return Math.max(...dirnames.map((d) => parseInt(d.charAt(1), 10)));
+}
+
+export async function getExpectedNodeTranslationPath(
+	nodeSourcePath: string,
+	language: string,
+): Promise<string> {
+	const nodeDir = dirname(nodeSourcePath);
+	const maxVersion = await getMaxVersion(nodeDir);
+
+	return maxVersion
+		? join(nodeDir, `v${maxVersion}`, 'translations', `${language}.js`)
+		: join(nodeDir, 'translations', `${language}.js`);
 }

packages/nodes-base/nodes/Mattermost/v1/translations/de.ts

@@ -0,0 +1,35 @@
+module.exports = {
+	mattermost: {
+		header: {
+			displayName: '🇩🇪 Mattermost',
+			description: '🇩🇪 Consume Mattermost API',
+		},
+		credentialsModal: {
+			mattermostApi: {
+				accessToken: {
+					displayName: '🇩🇪 Access token',
+				},
+			},
+		},
+		nodeView: {
+			resource: {
+				displayName: '🇩🇪 Resource',
+				description: '🇩🇪 The resource to operate on.',
+				options: {
+					channel: {
+						displayName: '🇩🇪 Channel',
+					},
+					message: {
+						displayName: '🇩🇪 Message',
+					},
+					reaction: {
+						displayName: '🇩🇪 Reaction',
+					},
+					user: {
+						displayName: '🇩🇪 User',
+					},
+				},
+			},
+		},
+	},
+};