fix(core): remove dependency on workspace package.json

Author: AgentEnder

packages/core/src/generators/init/generator.ts

@@ -20,6 +20,8 @@ import {
 import type { PackageJson } from 'nx/src/utils/package-json';
 import * as path from 'path';
 
+const noop = () => void 0;
+
 export async function initGenerator(
   host: Tree,
   _: null, // Nx will populate this with options, which are currently unused.
@@ -59,17 +61,21 @@ export async function initGenerator(
 export default initGenerator;
 
 function installNpmPackages(host: Tree): GeneratorCallback {
-  const packageJson = readJson<PackageJson>(host, 'package.json');
-  const nxVersion: string =
-    packageJson.devDependencies?.['nx'] ??
-    (packageJson.dependencies?.['nx'] as string);
-  return addDependenciesToPackageJson(
-    host,
-    {},
-    {
-      '@nrwl/js': nxVersion,
-    },
-  );
+  if (host.exists('package.json')) {
+    const packageJson = readJson<PackageJson>(host, 'package.json');
+    const nxVersion: string =
+      packageJson.devDependencies?.['nx'] ??
+      (packageJson.dependencies?.['nx'] as string);
+    return addDependenciesToPackageJson(
+      host,
+      {},
+      {
+        '@nrwl/js': nxVersion,
+      },
+    );
+  } else {
+    return noop;
+  }
 }
 
 function updateNxJson(host: Tree) {
@@ -90,18 +96,20 @@ function initToolManifest(host: Tree, dotnetClient: DotNetClient) {
 }
 
 function addPrepareScript(host: Tree) {
-  const packageJson = readJson(host, 'package.json');
-  const prepareSteps: string[] =
-    packageJson.scripts?.prepare?.split('&&').map((x: string) => x.trim()) ??
-    [];
-
-  const restoreScript = 'nx g @nx-dotnet/core:restore';
-  if (!prepareSteps.includes(restoreScript)) {
-    prepareSteps.push(restoreScript);
+  if (host.exists('package.json')) {
+    const packageJson = readJson(host, 'package.json');
+    const prepareSteps: string[] =
+      packageJson.scripts?.prepare?.split('&&').map((x: string) => x.trim()) ??
+      [];
+
+    const restoreScript = 'nx g @nx-dotnet/core:restore';
+    if (!prepareSteps.includes(restoreScript)) {
+      prepareSteps.push(restoreScript);
+    }
+    packageJson.scripts ??= {};
+    packageJson.scripts.prepare = prepareSteps.join(' && ');
+    writeJson(host, 'package.json', packageJson);
   }
-  packageJson.scripts ??= {};
-  packageJson.scripts.prepare = prepareSteps.join(' && ');
-  writeJson(host, 'package.json', packageJson);
 }
 
 function initBuildCustomization(host: Tree) {