On Friday, October 4, 2013 2:36:33 AM UTC+4, Eric Blake wrote: > On 10/03/2013 04:19 PM, vic...@vsespb.ru wrote: > > What about the following intent: > > > -if file exists, backup file > > > -throw an error in case of permission problem (to avoid missing files in > > the backup destination) > > > ? > And how do you propose to back up a file that you do not have permission > > to access? For all intents and purposes, the file may as well not exist > > in the first place. > I described use-case when user needs to *throw an error* when backup is impossible.
That's important to know that backup failed in this use-case.
