Categories/NSFileManager+UniqueNames.h

   1 //
   2 //  NSFileManager+UniqueNames.h
   3 //  Enjoyable
   4 //
   5 //  Created by Joe Wreschnig on 3/7/13.
   6 //
   7 //
   8
   9 #import <Foundation/Foundation.h>
  10
  11 @interface NSFileManager (UniqueNames)
  12
  13 - (NSURL *)generateUniqueURLWithBase:(NSURL *)canonical;
  14     // Generate a probably-unique URL by trying sequential indices, e.g.
  15     //     file://Test.txt
  16     //     file://Test (1).txt
  17     //     file://Test (2).txt
  18     // and so on.
  19     //
  20     // The URL is only probably unique. It is subject to the usual
  21     // race conditions associated with generating a filename before
  22     // actually opening it. It also does not check remote resources,
  23     // as it operates synchronously. Finally, it gives up after 10,000
  24     // indices.
  25
  26 @end