nuxt/dist/chunks/features.mjs

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import { addDependency } from 'nypm';
import { isPackageExists } from 'local-pkg';
import { logger } from '@nuxt/kit';
import prompts from 'prompts';

async function ensurePackageInstalled(rootDir, name, searchPaths) {
  if (isPackageExists(name, { paths: searchPaths })) {
    return true;
  }
  logger.info(`Package ${name} is missing`);
  const { confirm } = await prompts({
    type: "confirm",
    name: "confirm",
    message: `Do you want to install ${name} package?`,
    initial: true
  });
  if (!confirm) {
    return false;
  }
  logger.info(`Installing ${name}...`);
  try {
    await addDependency(name, {
      cwd: rootDir,
      dev: true
    });
    logger.success(`Installed ${name}`);
    return true;
  } catch (err) {
    logger.error(err);
    return false;
  }
}

export { ensurePackageInstalled };