viewDidLoad.swift

// if directory exists skip
      // else
        //create directory
          createDirectory(name: "cabecao/decks/comida/")


func createDirectory(name: String) {
    let fm = FileManager.default
    let dirPath = fm.urls(for: .documentDirectory, in: .userDomainMask)
    let docsURL = dirPath[0]
    let deckPath = docsURL.appendingPathComponent(name)
    
    do {
      try fm.createDirectory(at: deckPath, withIntermediateDirectories: true, attributes: nil)
    }
    catch {
      print(error.localizedDescription)
    }
  }