Function isUsingAppDir

packages/next-codemod/bin/upgrade.ts:468–473

(projectPath: string)

  )
}
function isUsingAppDir(projectPath: string): boolean {
  return (
    fs.existsSync(path.resolve(projectPath, 'app')) ||
    fs.existsSync(path.resolve(projectPath, 'src/app'))
  )
}

/*
 * Heuristics are used to determine whether to Turbopack is enabled or not and