Preserve root node fields when merging additional IDLs

Author: plutohan

packages/cli/src/parsedConfig.ts

@@ -1,4 +1,4 @@
-import { getAllPrograms, type RootNode,rootNode } from '@codama/nodes';
+import { getAllPrograms, type RootNode } from '@codama/nodes';
 import { Command } from 'commander';
 
 import { Config, getConfig, ScriptName, ScriptsConfig, VisitorConfig, VisitorPath } from './config';
@@ -71,7 +71,8 @@ async function mergeAdditionalIdls(
         additionalPrograms.push(...getAllPrograms(additionalRootNode));
     }
 
-    return rootNode(mainRootNode.program, additionalPrograms);
+    // Preserve the main root node's other fields (e.g. `standard`, `version`).
+    return { ...mainRootNode, additionalPrograms };
 }
 
 function parseIdlPath(

packages/cli/test/parsedConfig.test.ts

@@ -45,14 +45,17 @@ beforeEach(() => {
 test('merges additionalIdls programs into the root node additionalPrograms', async () => {
     getConfigMock.mockResolvedValue([{ additionalIdls: ['a.json', 'b.json'], idl: 'main.json' }, '/root/codama.json']);
     getRootNodeFromIdlMock
-        .mockResolvedValueOnce(rootNodeWith('main'))
+        .mockResolvedValueOnce({ ...rootNodeWith('main'), version: '9.9.9' } as RootNode)
         .mockResolvedValueOnce(rootNodeWith('a'))
         .mockResolvedValueOnce(rootNodeWith('b'));
 
     const parsed = await getParsedConfig({});
 
     expect(parsed.rootNode.program.name).toBe('main');
     expect(parsed.rootNode.additionalPrograms.map(p => p.name)).toEqual(['a', 'b']);
+    // The main root node's other fields are preserved by the merge.
+    expect(parsed.rootNode.standard).toBe('codama');
+    expect(parsed.rootNode.version).toBe('9.9.9');
 });
 
 test('leaves the root node unchanged when no additionalIdls are provided', async () => {