copy dir files for EnglishPod

copyFiles

import Cocoa

let folderPath = "/Users/admin/Downloads/1-30"
let newPath = "/Users/admin/tmp/"

let fileManager = NSFileManager.defaultManager()
let enumerator:NSDirectoryEnumerator = fileManager.enumeratorAtPath(folderPath)!

while let element = enumerator.nextObject() as? String {
    if element.hasSuffix("dg.mp3") {
        var fullElementPath = folderPath.stringByAppendingPathComponent(element)
        println(fullElementPath)
        
        let destPath = newPath.stringByAppendingPathComponent(element.lastPathComponent)
        
        var err: NSError?
        if NSFileManager.defaultManager().copyItemAtPath(fullElementPath, toPath: destPath, error: &err) {
            println("\(fullElementPath) file added to the folder.")
        } else {
            println("FAILED to add \(fullElementPath) to the folder.")
        }
    }
}