Re: File event notification
Re: File event notification
- Subject: Re: File event notification
- From: "Stephen J. Butler" <email@hidden>
- Date: Thu, 23 Oct 2008 23:47:51 -0500
On Thu, Oct 23, 2008 at 11:44 PM, Michael Ash <email@hidden> wrote:
> Can't be done. The system has no concept of "copy". A copy simply
> means that you read the contents from A, and then write them to B. But
> there's no inherent link between the reading and the writing. In other
> words, when I'm writing out the contents to B, the system has no way
> of tracking that those contents did, in fact, come from A. To
> illustrate, I can copy a file by using the Finder, by using Save As in
> an app, or by doing something like "tar -cf - A | tar -C B -xf -" at
> the command line. There's simply no way the system is going to be able
> to tell you where the new file "came from", in the sense that a human
> would interpret it.
... and a move between volumes is actually a copy + delete. So again,
no fool proof way to track.
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