Using the line below,
[fileManager copyItemAtPath:sourcePath toPath:targetPath error:&error];
We can copy a folder but if the folder already exists it throws an exception "File Exists". In order to overwrite a single file, we can achieve it through the following lines:
NSData *myData = [NSData dataWithContentsOfURL:FileURL]; /fetch single file
[myData writeToFile:targetPath atomically:YES];
But I want to copy an already existing folder i.e, overwrite.
Edit : Simple Possibility , I can remove the items before copying them.
Please suggest any more possibilities.
The default behavior of NSFileManager
method is to throw an exception/error "File Exists." when the file exists. But still if you want to overwrite using NSFileManager
then it provides one api for that which is mentioned below replaceItemAtURL as well in first solution:-
Also there are three solutions to achieve that
First Solution
[filemanger replaceItemAtURL:url1
withItemAtURL:url2
backupItemName:@"/Users/XYZ/Desktop/test.xml"
options:NSFileManagerItemReplacementUsingNewMetadataOnly
resultingItemURL:nil error:nil];
Using the above API you can overwrite the file contents. But before that you have to take the backup of your source path in your temporary directory.
Second Solution
Already you have mentioned in your question using NSData writeToUrl
.
Third Solution
trojanfoe has mentioned in their answer. i.e. remove the item being overwritten beforehand.
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