用于在 macOS 上复制文件的本机框架

Question

macOS 中是否有可用于以编程方式复制文件并获得与从 Finder 复制文件相同的进度条的框架？

或者，我可以使用 cp 或文件系统 API 进行复制，并使用 NSProgressIndicator 实现进度条。

Answer 1

您可以使用 copyFile.
Here 是带有进度回调的复制文件示例。

Answer 2

我遇到了同样的问题，但我在 swift 中需要它。但是伟大的 Project Parag 它真的帮助了我！

这就是我的复制功能。

   func createCopy(of:URL, to:URL,skip:Bool) throws {

    
    if !skip {
        if FileManager.default.fileExists(atPath: to.path) {
            print("\n\n   did not copy \n\(of.lastPathComponent.utf8CString) \nto \n\(to.path)\n\n")
            return
        }
    }

    
    
    //open window

    let copyStoryboard = NSStoryboard.init(name: "copyProgessWindow", bundle: nil)
    self.progressWindowConrtoller =  copyStoryboard.instantiateController(withIdentifier: "CopyProgressWindow") as! NSWindowController
    let application = NSApplication.shared
    
    //set Up view
    let viewController = self.progressWindowConrtoller!.contentViewController as! CopyViewController

    viewController.path_copyFrom.url = of
    viewController.path_copyTo.url = to
    



    
     DispatchQueue.global(qos: .userInteractive).async{
        do{
            let bufferSize:Int = 64*1024;
            var buffer = [Int32](repeating: 0, count: Int(bufferSize))
            
            let open_source = open(of.path, O_RDONLY);
            let open_target = open(to.path, O_RDWR | O_CREAT | O_TRUNC, S_IWUSR | S_IRUSR);
            
            let attrSource = try FileManager.default.attributesOfItem(atPath: of.path)
            
            let sourceFileSize = attrSource[FileAttributeKey.size] as! UInt64
            
            
            
            var bytes_read = 0;
            
            bytes_read = read(open_source, &buffer, bufferSize);
            
            
            while(bytes_read  > 0){
                write(open_target, &buffer, bufferSize);
                
                if FileManager.default.fileExists(atPath: to.path) {
                    
                    let attrTarget = try FileManager.default.attributesOfItem(atPath: to.path)
                    let targetFileSize = attrTarget[FileAttributeKey.size] as! UInt64
                    
                    
                    DispatchQueue.main.async {
                        viewController.progressbar_progBar.doubleValue = self.progressProcent
                    }
                        
                    self.progressProcent = Double(targetFileSize)/Double(sourceFileSize)
                    print(self.progressProcent)

                    
                }
                bytes_read = read(open_source, &buffer, bufferSize);
            }
            // copy is done, or an error occurred
            close(open_source);
            close(open_target);
            sleep(2)
            DispatchQueue.main.async {
                application.abortModal()
                self.progressWindowConrtoller!.close()
            }
        }
        catch{
            print(error)
        }
        
        
    }

    application.runModal(for: self.progressWindowConrtoller!.window!)

}

我有一个名为 'copyProgessWindow.storyboard' 的故事板文件，重要的是故事板 ID 设置为 'CopyProgressWindow'。它看起来像这样： storyboardCopyProgress

这就是我的 ViewController 您看到的视图：

class 复制ViewController: NSViewController {

@IBOutlet weak var path_copyFrom: NSPathControl!
@IBOutlet weak var path_copyTo: NSPathControl!
@IBOutlet weak var label_remaindingTime: NSTextField!
@IBOutlet weak var progressbar_progBar: NSProgressIndicator!


override func viewDidLoad() {
    super.viewDidLoad()
    
}

}

用于在 macOS 上复制文件的本机框架

Native framework for copying file on macOS

filesystems

macos

finder