index.ts

#!/usr/bin/env node
import path from 'path';
import arg from 'arg';
import makeDir from 'make-dir';
import checkForUpdate from 'update-check';
import packageJson from './package.json';
import { createApp } from './lib/create-app';
import { promptForTemplate } from './lib/templates';
import { executeCommand } from './lib/utils';
import { chooseLanguage } from './lib/templates';

const args = arg({
  '--help': Boolean,
  '--version': Boolean,
  '--debug': Boolean,
  '--template': String,
  '-t': '--template',
  '-v': '--version',
  '-h': '--help',
  '-d': '--debug'
});

if (args['--version']) {
  console.log(`create-cdk-app v${packageJson.version}`);
  process.exit(0);
}

if (args['--help']) {
  console.log(`
    Usage
      $ create-cdk-app <project-directory>
    Options
      --template, -t  Template [name]|[url]
      --version, -v   Version number
      --help, -h      Displays this message
      --debug, -d     Enable verbose logging
  `);
  process.exit(0);
}

const debug = args['--debug'] ? args['--debug'] : false;

async function run() {
  // handle project directory
  if (args._.length === 0) {
    console.error(`No project directory was specified`);
    process.exit(1);
  }

  const projectPath = path.resolve(args._[0]);

  // handle template name
  const template = args['--template'] ? args['--template'] : await promptForTemplate();

  if (template === 'cdk-init') {
    try {
      await makeDir(projectPath);
      process.chdir(projectPath); // cdk init must be run within the new directory
      const language = await chooseLanguage();
      console.log(`Initializing new cdk ${language} app with the cdk cli`);
      console.log('This might take a minute or two.')
      const res = await executeCommand(`cdk init app --language=${language}`);
      console.log(res);
      process.exit(0);
    } catch (e) {
      console.error(e.toString());
      process.exit(1);
    }
  }

  await createApp({
    template,
    projectPath,
    debug
  });
}

const update = checkForUpdate(packageJson).catch(() => null)

async function notifyUpdate(): Promise<void> {
  try {
    const res = await update
    if (res?.latest) {
      console.log('A new version of `create-cdk-app` is available!')
      console.log('You can update by running: yarn global add create-cdk-app');
    }
    process.exit();
  } catch {
    // ignore error
  }
}

run()
  .then(notifyUpdate)
  .catch(async (reason) => {
    console.log('Aborting installation.');
    console.log('Unexpected error');
    console.log(reason);
    await notifyUpdate();
    process.exit(1);
  })