Function init

src/init.ts:305–362

(options: Options)

}

export async function init(options: Options): Promise<boolean> {
  let generatedPackageJson = false;
  let packageJson;
  try {
    packageJson = await readJson('./package.json');
  } catch (e) {
    const err = e as Error & {code?: string};
    if (err.code !== 'ENOENT') {
      throw new Error(`Unable to open package.json file: ${err.message}`);
    }
    const generate = await query(
      `${chalk.bold('package.json')} does not exist.`,
      'Generate',
      true,
      options,
    );

    if (!generate) {
      options.logger.log('Please run from a directory with your package.json.');
      return false;
    }

    packageJson = DEFAULT_PACKAGE_JSON;
    generatedPackageJson = true;
  }

  const [addedDeps, addedScripts] = await Promise.all([
    addDependencies(packageJson, options),
    addScripts(packageJson, options),
  ]);
  if (generatedPackageJson || addedDeps || addedScripts) {
    await writePackageJson(packageJson, options);
  } else {
    options.logger.log('No edits needed in package.json.');
  }
  await Promise.all([
    generateTsConfig(options),
    generateESLintConfig(options),
    generateESLintIgnore(options),
    generatePrettierConfig(options),
    generateEditorConfig(options),
  ]);
  await installDefaultTemplate(options);

  // Run `npm install` after initial setup so `npm run lint` works right away.
  if (!options.dryRun) {
    // --ignore-scripts so that compilation doesn't happen because there's no
    // source files yet.

    cp.spawnSync(
      getPkgManagerCommand(options.yarn),
      ['install', '--ignore-scripts'],
      {stdio: 'inherit'},
    );
  }

  return true;
}