feat: add option to generate GitHub Actions CI workflow during project scaffold

Author: meenu155

README.md

@@ -178,10 +178,20 @@ create-polyglot dev --docker
 | `--package-manager <pm>` | One of `npm|pnpm|yarn|bun` (default: detect or npm) |
 | `--frontend-generator` | Use `create-next-app` (falls back to template on failure) |
 | `--force` | Overwrite existing target directory if it exists |
+| `--with-actions` | Generate a starter GitHub Actions CI workflow (`.github/workflows/ci.yml`) |
 | `--yes` | Accept defaults & suppress interactive prompts |
 
 If you omit flags, the wizard will prompt interactively (similar to `create-next-app`).
 
+### Optional GitHub Actions CI
+Pass `--with-actions` (or answer "yes" to the prompt) and the scaffold adds a minimal workflow at `.github/workflows/ci.yml` that:
+- Triggers on pushes & pull requests targeting `main` / `master`
+- Sets up Node.js (20.x) with dependency cache
+- Installs dependencies (respects your chosen package manager)
+- Runs the test suite (`npm test` / `yarn test` / `pnpm test` / `bun test`)
+
+You can extend it with build, lint, docker publish, or matrix strategies. If you skip it initially you can always add later manually.
+
 ## Generated Structure
 ```
 my-org/

bin/index.js

@@ -28,6 +28,7 @@ program
   .option('--force', 'Overwrite if directory exists and not empty')
   .option('--package-manager <pm>', 'npm | pnpm | yarn | bun (default: npm)')
   .option('--frontend-generator', 'Use create-next-app to scaffold the frontend instead of the bundled template')
+  .option('--with-actions', 'Generate a GitHub Actions CI workflow (ci.yml)')
   .option('--yes', 'Skip confirmation (assume yes) for non-interactive use')
   .action(async (projectNameArg, options) => {
     await scaffoldMonorepo(projectNameArg, options);
@@ -43,6 +44,7 @@ program
   .option('--force', '(Deprecated) Overwrite directory')
   .option('--package-manager <pm>', '(Deprecated) Package manager')
   .option('--frontend-generator', '(Deprecated) Use create-next-app for frontend')
+  .option('--with-actions', '(Deprecated) Generate GitHub Actions workflow')
   .option('--yes', '(Deprecated) Assume yes for prompts')
   .action(async (projectNameArg, options) => {
     if (!options._deprecatedNoticeShown) {

bin/lib/scaffold.js

@@ -76,6 +76,16 @@ export async function scaffoldMonorepo(projectNameArg, options) {
         initial: true
       });
     }
+    if (options.withActions === undefined) {
+      interactiveQuestions.push({
+        type: 'toggle',
+        name: 'withActions',
+        message: 'Generate GitHub Actions CI workflow?',
+        active: 'yes',
+        inactive: 'no',
+        initial: false
+      });
+    }
 
     let answers = {};
     const nonInteractive = !!options.yes || process.env.CI === 'true';
@@ -99,6 +109,9 @@ export async function scaffoldMonorepo(projectNameArg, options) {
             case 'git':
               answers.git = false;
               break;
+            case 'withActions':
+              answers.withActions = false; // default disabled in non-interactive mode
+              break;
             default:
               break;
           }
@@ -126,6 +139,7 @@ export async function scaffoldMonorepo(projectNameArg, options) {
     options.preset = options.preset || answers.preset || '';
     options.packageManager = options.packageManager || answers.packageManager || 'npm';
     if (options.git === undefined) options.git = answers.git;
+  if (options.withActions === undefined) options.withActions = answers.withActions;
 
     console.log(chalk.cyanBright(`\n🚀 Creating ${projectName} monorepo...\n`));
 
@@ -500,6 +514,25 @@ export async function scaffoldMonorepo(projectNameArg, options) {
       }
     }
 
+    // Optionally generate GitHub Actions workflow
+    if (options.withActions) {
+      try {
+        const wfDir = path.join(projectDir, '.github', 'workflows');
+        await fs.mkdirp(wfDir);
+        const wfPath = path.join(wfDir, 'ci.yml');
+        if (!(await fs.pathExists(wfPath))) {
+          const nodeVersion = '20.x';
+          const installStep = pm === 'yarn' ? 'yarn install --frozen-lockfile || yarn install' : pm === 'pnpm' ? 'pnpm install' : pm === 'bun' ? 'bun install' : 'npm ci || npm install';
+          const testCmd = pm === 'yarn' ? 'yarn test' : pm === 'pnpm' ? 'pnpm test' : pm === 'bun' ? 'bun test' : 'npm test';
+          const wf = `# Generated by create-polyglot CI scaffold\nname: CI\n\non:\n  push:\n    branches: [ main, master ]\n  pull_request:\n    branches: [ main, master ]\n\njobs:\n  build-test:\n    runs-on: ubuntu-latest\n    steps:\n      - name: Checkout\n        uses: actions/checkout@v4\n      - name: Setup Node.js\n        uses: actions/setup-node@v4\n        with:\n          node-version: ${nodeVersion}\n          cache: '${pm === 'npm' ? 'npm' : pm}'\n      - name: Install dependencies\n        run: ${installStep}\n      - name: Run tests\n        run: ${testCmd}\n`;
+          await fs.writeFile(wfPath, wf);
+          console.log(chalk.green('✅ Added GitHub Actions workflow (.github/workflows/ci.yml)'));
+        }
+      } catch (e) {
+        console.log(chalk.yellow('⚠️  Failed to create GitHub Actions workflow:'), e.message);
+      }
+    }
+
     // Write polyglot config
     const polyglotConfig = {
       name: projectName,
@@ -516,6 +549,7 @@ export async function scaffoldMonorepo(projectNameArg, options) {
       `${pm} run list:services   # quick list (fancy table)`,
       `${pm} run dev             # run local node/frontend services`,
       'docker compose up --build# run all via docker',
+      options.withActions ? 'GitHub Actions CI ready (see .github/workflows/ci.yml)' : '',
       '',
       'Happy hacking!'
     ].filter(Boolean));

tests/actions-workflow.test.js

@@ -0,0 +1,29 @@
+import { execa } from 'execa';
+import { describe, it, expect, afterAll } from 'vitest';
+import fs from 'fs';
+import path from 'path';
+import os from 'os';
+
+// Test that --with-actions generates a GitHub Actions workflow file.
+
+describe('GitHub Actions workflow generation', () => {
+  const tmpParent = fs.mkdtempSync(path.join(os.tmpdir(), 'polyglot-actions-'));
+  let tmpDir = path.join(tmpParent, 'workspace');
+  fs.mkdirSync(tmpDir);
+  const projName = 'ci-proj';
+
+  afterAll(() => {
+    try { fs.rmSync(tmpParent, { recursive: true, force: true }); } catch {}
+  });
+
+  it('creates a ci.yml when --with-actions passed', async () => {
+    const repoRoot = process.cwd();
+    const cliPath = path.join(repoRoot, 'bin/index.js');
+    await execa('node', [cliPath, projName, '--services', 'node', '--no-install', '--with-actions', '--yes'], { cwd: tmpDir });
+    const wfPath = path.join(tmpDir, projName, '.github', 'workflows', 'ci.yml');
+    expect(fs.existsSync(wfPath)).toBe(true);
+    const content = fs.readFileSync(wfPath, 'utf-8');
+    expect(content).toMatch(/name: CI/);
+    expect(content).toMatch(/Run tests/);
+  }, 30000);
+});