KCD/ApplicationDirecrories.swift

   1 //
   2 //  ApplicationDirecrories.swift
   3 //  KCD
   4 //
   5 //  Created by Hori,Masaki on 2017/02/08.
   6 //  Copyright © 2017年 Hori,Masaki. All rights reserved.
   7 //
   8
   9 import Foundation
  10
  11 private func supportDirName() -> String {
  12
  13     let main = Bundle.main
  14
  15     return main.bundleIdentifier
  16         ?? main.infoDictionary?["CFBundleName"] as? String
  17         ?? main.infoDictionary?["CFBundleExecutable"] as? String
  18         ?? "UnknownAppliation"
  19 }
  20
  21 func localizedAppName() -> String {
  22
  23     guard let name = Bundle.main.localizedInfoDictionary?["CFBundleName"] as? String,
  24         !name.isEmpty else {
  25
  26             return supportDirName()
  27     }
  28
  29     return name
  30 }
  31
  32 struct ApplicationDirecrories {
  33
  34     static let shared = ApplicationDirecrories()
  35
  36     let support = searchedURL(for: .applicationSupportDirectory)
  37         .appendingPathComponent(supportDirName())
  38
  39     let documents = searchedURL(for: .documentDirectory)
  40
  41     let pictures = searchedURL(for: .picturesDirectory)
  42
  43     static func searchedURL(for directory: FileManager.SearchPathDirectory) -> URL {
  44
  45         return FileManager.default.urls(for: directory, in: .userDomainMask)
  46             .last
  47             ?? URL(fileURLWithPath: NSHomeDirectory())
  48     }
  49 }
  50
  51 extension ApplicationDirecrories {
  52
  53     func createDirectory(_ url: URL) -> Bool {
  54
  55         do {
  56
  57             try FileManager.default.createDirectory(at: url,
  58                                                     withIntermediateDirectories: false,
  59                                                     attributes: nil)
  60
  61             return true
  62
  63         } catch {
  64
  65             return false
  66         }
  67     }
  68
  69     func checkDirectory(_ url: URL, create: Bool) -> Bool {
  70
  71         do {
  72
  73             let resourceValue = try url.resourceValues(forKeys: [.isDirectoryKey])
  74             if !resourceValue.isDirectory! {
  75
  76                 print("Expected a folder to store application data, found a file \(url.path).")
  77
  78                 return false
  79             }
  80
  81             return true
  82
  83         } catch let error as NSError {
  84
  85             if create, error.code == NSFileReadNoSuchFileError {
  86
  87                 return createDirectory(url)
  88             }
  89
  90             return false
  91         }
  92     }
  93 }