fix(core): decorate angular cli to error when ng update is used

Author: FrozenPandaz

packages/cli/lib/init-local.ts

@@ -27,7 +27,7 @@ export function initLocal(workspace: Workspace) {
     if (runOpts === false || process.env.NX_SKIP_TASKS_RUNNER) {
       if (workspace.type === 'angular' && process.argv[2] === 'update') {
         console.log(
-          `Nx provides a much improved version of "ng update". It runs same migrations, but allows you to:`
+          `Nx provides a much improved version of "ng update". It runs the same migrations, but allows you to:`
         );
         console.log(`- rerun the same migration multiple times`);
         console.log(`- reorder migrations`);

packages/workspace/migrations.json

@@ -139,6 +139,11 @@
       "version": "10.4.5",
       "description": "Update the 'update' npm script to invoke nx migrate",
       "factory": "./src/migrations/update-10-4-0/update-script-to-invoke-nx-migrate"
+    },
+    "update-decorate-angular-cli": {
+      "version": "10.4.6",
+      "description": "Update the decoration script when using Angular CLI",
+      "factory": "./src/migrations/update-10-4-0/update-decorate-angular-cli"
     }
   },
   "packageJsonUpdates": {

packages/workspace/src/migrations/update-10-4-0/update-decorate-angular-cli.ts

@@ -0,0 +1,21 @@
+import { join as pathJoin } from 'path';
+import { readFileSync } from 'fs';
+import { Tree } from '@angular-devkit/schematics';
+
+export default function update() {
+  return (host: Tree) => {
+    const decorateCli = readFileSync(
+      pathJoin(
+        __dirname as any,
+        '..',
+        '..',
+        'schematics',
+        'utils',
+        'decorate-angular-cli.js__tmpl__'
+      )
+    ).toString();
+    if (host.exists('/decorate-angular-cli.js')) {
+      host.overwrite('/decorate-angular-cli.js', decorateCli);
+    }
+  };
+}

packages/workspace/src/schematics/utils/decorate-angular-cli.js__tmpl__

@@ -50,6 +50,14 @@ if (!process.env['NX_CLI_SET']) {
   const { output } = require('@nrwl/workspace');
   output.warn({ title: 'The Angular CLI was invoked instead of the Nx CLI. Use "npx ng [command]" or "nx [command]" instead.' });
 }
+
+if (process.argv[2] === 'update') {
+  const { output } = require('@nrwl/workspace');
+  output.error({
+    title: '"ng update" is deprecated in favor of "nx migrate". Read more: https://nx.dev/latest/angular/workspace/update'
+  });
+  throw new Error();
+}
 ${angularCLIInit}
     `);
   }