Swift3: Utility functions to copy a folder and its contents from resources to documents

CopyFolder.swift

    func copyFolder(){
        
        // Get the resource folder
        if let resourceMainPath = Bundle.main.resourcePath{
            
            var isDirectory = ObjCBool(true)
            // Get the path of the folder to copy
            let originPath = (resourceMainPath as NSString).appendingPathComponent("NameOfFolder")
            // Get the destination path, here copying to Caches
            let destinationPath = NSSearchPathForDirectoriesInDomains(.cachesDirectory, .userDomainMask, true).first!
            // Append the folder name to dest path so that system creates the directory if it doesnt exist
            let destPath = (destinationPath as NSString).appendingPathComponent("/NameOfFolder")
            let fileManager = FileManager.default
            if fileManager.fileExists(atPath: destPath, isDirectory:&isDirectory ){
                // If an overwrite behavior is needed, remove and copy again here
                 print("Exists")
            }else{
                // Do the copy
                do {
                    try fileManager.copyItem(atPath: originPath, toPath: destPath)
                }catch let error{
                    print(error.localizedDescription)
                }
            }
        }else{
            
        }
        
    }
    
    func copyTheFolder(){
        
        // Get the resource folder
        if let resourceMainURL = Bundle.main.resourceURL{
            var isDirectory = ObjCBool(true)
            // Get the path of the folder to copy
            let originPath = resourceMainURL.appendingPathComponent("NameOfFolder")
            // Get the destination path, here copying to Caches
            let destinationPath = NSSearchPathForDirectoriesInDomains(.cachesDirectory, .userDomainMask, true).first!
            // Append the folder name to dest path so that system creates the directory if it doesnt exist
            let destURL = URL(fileURLWithPath: destinationPath).appendingPathComponent("/NameOfFolder")
            let fileManager = FileManager.default
            if fileManager.fileExists(atPath: destURL.path, isDirectory:&isDirectory ){
                // If an overwrite behavior is needed, remove and copy again here
                print("Exists")
                
            }else{
                // Do the copy
                do {
                    try fileManager.copyItem(at: originPath, to: destURL)

                }catch let error{
                    print(error.localizedDescription)
                }
            }
        }
    }