fix(core): do not strip additional angular.json properties (#16615)

Author: JamesHenry

docs/generated/devkit/nrwl_devkit.md

@@ -832,7 +832,7 @@ Path to the directory where Nx stores its cache and daemon-related files.
 
 ### workspaceRoot
 
-• `Const` **workspaceRoot**: `string`
+• **workspaceRoot**: `string`
 
 The root of the workspace
 

docs/generated/packages/devkit/documents/nrwl_devkit.md

@@ -832,7 +832,7 @@ Path to the directory where Nx stores its cache and daemon-related files.
 
 ### workspaceRoot
 
-• `Const` **workspaceRoot**: `string`
+• **workspaceRoot**: `string`
 
 The root of the workspace
 

packages/nx/src/adapter/angular-json.ts

@@ -26,7 +26,7 @@ export function shouldMergeAngularProjects(
   }
 }
 
-function isAngularPluginInstalled() {
+export function isAngularPluginInstalled() {
   try {
     require.resolve('@nx/angular');
     return true;

packages/nx/src/adapter/ngcli-adapter.ts

@@ -41,7 +41,11 @@ import { parseJson } from '../utils/json';
 import { NX_ERROR, NX_PREFIX } from '../utils/logger';
 import { readModulePackageJson } from '../utils/package-json';
 import { detectPackageManager } from '../utils/package-manager';
-import { toNewFormat, toOldFormat } from './angular-json';
+import {
+  isAngularPluginInstalled,
+  toNewFormat,
+  toOldFormat,
+} from './angular-json';
 import { normalizeExecutorSchema, Workspaces } from '../config/workspaces';
 import {
   CustomHasher,
@@ -899,7 +903,8 @@ export function wrapAngularDevkitSchematic(
 
       if (event.kind === 'error') {
       } else if (event.kind === 'update') {
-        if (eventPath === 'angular.json') {
+        // Apply special handling for the angular.json file, but only when in an Nx workspace
+        if (eventPath === 'angular.json' && isAngularPluginInstalled()) {
           saveProjectsConfigurationsInWrappedSchematic(
             host,
             event.content.toString()
@@ -1002,7 +1007,10 @@ function saveProjectsConfigurationsInWrappedSchematic(
     ? Object.keys(existingAngularJson.projects)
     : [];
 
-  const newAngularJson = { projects: {} };
+  const newAngularJson = existingAngularJson || {};
+
+  // Reset projects in order to rebuild them, but leave other properties untouched
+  newAngularJson.projects = {};
 
   Object.keys(projects).forEach((projectName) => {
     if (projectsInAngularJson.includes(projectName)) {

packages/nx/src/utils/workspace-root.ts

@@ -4,7 +4,11 @@ import { fileExists } from './fileutils';
 /**
  * The root of the workspace
  */
-export const workspaceRoot = workspaceRootInner(process.cwd(), process.cwd());
+export let workspaceRoot = workspaceRootInner(process.cwd(), process.cwd());
+
+export function setWorkspaceRoot(root: string): void {
+  workspaceRoot = root;
+}
 
 export function workspaceRootInner(
   dir: string,