fix(scripts/generators): make sure to flush nx Tree outside nx contex…

…t in order to write changes on physical file system (#28396)

scripts/generators/create-package/index.ts

@@ -1,7 +1,7 @@
 import { spawnSync } from 'child_process';
 import * as path from 'path';
 
-import { PackageJson, findGitRoot, getProjectMetadata, tree } from '@fluentui/scripts-monorepo';
+import { PackageJson, findGitRoot, flushTreeChanges, getProjectMetadata, tree } from '@fluentui/scripts-monorepo';
 import { addProjectConfiguration } from '@nrwl/devkit';
 import chalk from 'chalk';
 import * as fs from 'fs-extra';
@@ -295,4 +295,6 @@ function updateNxProject(_answers: Answers, config: { projectName: string; proje
     projectType: 'library',
     implicitDependencies: [],
   });
+
+  flushTreeChanges();
 }

scripts/monorepo/src/index.d.ts

@@ -10,4 +10,4 @@ export { getDefaultEnvironmentVars } from './getDefaultEnvironmentVars';
 export { getProjectMetadata, workspaceRoot, getUncommittedFiles, getUntrackedFiles } from './utils';
 export * as eslintConstants from './eslint-constants';
 export { getNthCommit } from './getNthCommit';
-export { tree } from './tree';
+export { tree, flushTreeChanges } from './tree';

scripts/monorepo/src/tree.js

@@ -1,5 +1,7 @@
 const { workspaceRoot } = require('@nrwl/devkit');
-const { FsTree } = require('nx/src/generators/tree');
+const { FsTree, flushChanges } = require('nx/src/generators/tree');
+
 const tree = new FsTree(workspaceRoot, false);
 
+exports.flushTreeChanges = () => flushChanges(workspaceRoot, tree.listChanges());
 exports.tree = tree;