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Commit 63249f9

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feat(@angular/cli): introduce setup-gemini-cli command with a Gemini CLI extension
Introduces `ng ai setup-gemini-cli` that will automatically install the "Angular Gemini CLI extension", wiring up Angular best practices and rules that improve code generation. In the future we need to look further into: * Documentation * How we version the extension. I.e. could `ng update` help here? * The extension could also wire up the MCP server from the CLI!
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‎.prettierignore‎

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@@ -16,3 +16,6 @@ dist/
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/tests/legacy-cli/e2e/assets/
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/tools/test/*.json
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pnpm-lock.yaml
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# This is a symbolic link.
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packages/angular/cli/src/commands/ai/setup-gemini-cli/extension/GEMINI.md
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/**
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* @license
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* Copyright Google LLC All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.dev/license
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*/
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import { join } from 'node:path';
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import { Argv } from 'yargs';
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import {
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CommandModule,
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CommandModuleImplementation,
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CommandScope,
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Options,
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} from '../../command-builder/command-module';
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import {
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addCommandModuleToYargs,
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demandCommandFailureMessage,
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} from '../../command-builder/utilities/command';
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import SetupGeminiCliModule from './setup-gemini-cli/cli';
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export default class AiCommandModule extends CommandModule implements CommandModuleImplementation {
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command = 'ai';
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describe = 'Commands for artificial intelligence.';
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longDescriptionPath = undefined;
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override scope = CommandScope.Both;
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builder(localYargs: Argv): Argv {
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const subcommands = [SetupGeminiCliModule].sort();
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for (const module of subcommands) {
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addCommandModuleToYargs(module, this.context);
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}
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return localYargs.demandCommand(1, demandCommandFailureMessage).strict();
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}
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run(_options: Options<{}>): void {}
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}
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/**
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* @license
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* Copyright Google LLC All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.dev/license
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*/
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import { cp, mkdir } from 'node:fs/promises';
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import { homedir } from 'node:os';
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import { join } from 'node:path';
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import { Argv } from 'yargs';
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import {
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CommandModule,
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CommandModuleImplementation,
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CommandScope,
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Options,
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} from '../../../command-builder/command-module';
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export default class SetupGeminiCliModule
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extends CommandModule
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implements CommandModuleImplementation
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{
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command = 'setup-gemini-cli';
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describe = 'Sets up Gemini CLI with the official Angular extension.';
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longDescriptionPath?: string | undefined;
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override scope = CommandScope.Both;
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builder(localYargs: Argv): Argv {
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return localYargs.strict();
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}
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async run(_options: Options<{}>): Promise<void> {
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const extensionDir = join(__dirname, './extension');
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const extensionUserDir = join(homedir(), '.gemini', 'extensions', 'angular');
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await mkdir(extensionUserDir, { recursive: true });
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await cp(extensionDir, extensionUserDir, { recursive: true, dereference: true });
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this.context.logger.info(`✅ Installed the Angular Gemini CLI extension.`);
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}
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}
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../../../mcp/instructions/best-practices.md
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{
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"name": "Angular",
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"version": "0.0.0-PLACEHOLDER",
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"mcpServers": {},
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"contextFileName": "./GEMINI.md"
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}

‎packages/angular/cli/src/commands/command-config.ts‎

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export type CommandNames =
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| 'add'
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| 'ai'
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| 'analytics'
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| 'build'
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| 'cache'
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'add': {
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factory: () => import('./add/cli'),
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},
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'ai': {
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factory: () => import('./ai/cli'),
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},
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'analytics': {
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factory: () => import('./analytics/cli'),
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},
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import { join } from 'node:path';
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import { expectFileNotToExist, expectFileToExist, expectFileToMatch } from '../../../utils/fs';
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import { ng } from '../../../utils/process';
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import assert from 'node:assert';
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export default async function () {
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assert(process.env.HOME, 'Expected HOME directory to be set.');
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const extensionDir = join(process.env.HOME, '.gemini', 'extensions', 'angular');
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const geminiBestPracticesFile = join(extensionDir, 'GEMINI.md');
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await expectFileNotToExist(extensionDir);
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await expectFileNotToExist(geminiBestPracticesFile);
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await ng('ai', 'setup-gemini-cli');
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await expectFileToExist(extensionDir);
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await expectFileToExist(geminiBestPracticesFile);
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await expectFileToMatch(geminiBestPracticesFile, 'Angular Best Practices');
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}

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