NSFileManager delete contents of directory

Question

How do you delete all the contents of a directory without deleting the directory itself? I want to basically empty a folder yet leave it (and the permissions) intact.

Answer 1

The documentation for contentsOfDirectoryAtPath:error: says:

The search is shallow and therefore does not return the contents of any subdirectories. This returned array does not contain strings for the current directory (“.”), parent directory (“..”), or resource forks (begin with “._”) and does not traverse symbolic links.

Thus:

---( file != @"." && file != @".." )---

is irrelevant.

Answer 2

Swift 3 if anyone needs it for a quick cut/paste

let fileManager = FileManager.default
let fileUrls = fileManager.enumerator(at: folderUrl, includingPropertiesForKeys: nil)
while let fileUrl = fileUrls?.nextObject() {
    do {
        try fileManager.removeItem(at: fileUrl as! URL)
    } catch {
        print(error)
    }
}

Answer 3

Georg Fritzsche answer for Swift did not work for me. Instead of reading the enumerated object as a String, read it as NSURL.

let fileManager = NSFileManager.defaultManager()
let url = NSURL(string: "foo/bar")
let enumerator = fileManager.enumeratorAtURL(url, includingPropertiesForKeys: nil, options: nil, errorHandler: nil)
while let file = enumerator?.nextObject() as? NSURL {
    fileManager.removeItemAtURL(file, error: nil)
}