Copy contents of app to desktop programmatically - objective-c

Question

How can I copy my entire .app bundle ([[NSBundle mainBundle] bundleURL]) to my desktop programmatically?
Here is my code but not helping me.
NSString *sourcepath = [[NSBundle mainBundle] bundlePath];
NSString *destpath = [NSHomeDirectory() stringByAppendingPathComponent:#"Desktop"];
[[NSFileManager defaultManager] copyItemAtPath:sourcepath toPath:destpath error:nil];

Answer 1

You can use the standard NSFileManager methods
copyItemAtURL:toURL:error: or
copyItemAtPath:toPath:error:
to copy directories as well as files. From Apple's docs:
When copying items, the current process must have permission to read the file or directory at srcPath and write the parent directory of dstPath. If the item at srcPath is a directory, this method copies the directory and all of its contents, including any hidden files.
Mind that you have to manually remove an item (file/directory) at the destination with the same name if it already exists or else the copy will fail (again, as per Apple's docs).

Answer 2

Here's how I solved it may be this can be helpful for someone.
- (IBAction)createShortcut:(id)sender {
NSString *sourcepath = [[NSBundle mainBundle] bundlePath];
NSArray* paths = NSSearchPathForDirectoriesInDomains(NSDesktopDirectory, NSUserDomainMask, YES);
NSString *theDesktopPath = [paths objectAtIndex:0];
NSString *saveFilePath = [theDesktopPath stringByAppendingPathComponent:#"myApp.app"];
[[NSFileManager defaultManager] copyItemAtPath:sourcepath toPath:saveFilePath error:nil];
}