How can you detect file changes with a OSX Library directory?

Question

You can use NSMetadataQuery to detect any file changes within the home directory of a user. However it seems like it doesn't index and therefor detect any file changes in the users Library path.

Luckily for my purpose I know exactly where my file is and I like to know if the files changes and react on it. Do I need to right my own listener class? That will mimic the behavior of NSMetadataQuery by checking if the modification date changes or is there a simpeler way?

    var resource: AnyObject?
    fileURL?.getResourceValue(&resource, forKey: NSURLContentModificationDateKey, error: nil)
    if let fileDate = resource as? NSDate {
        println(fileDate)
    }

score 0 · Accepted Answer · edited May 23 '17 at 12:06

0

If you only need to watch a single file, you can use libdispatch or kqueue.

For watching folders, there's the FSEvents API.

edited May 23 '17 at 12:06

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answered Jul 01 '15 at 02:46

How can you detect file changes with a OSX Library directory?

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