From: Daniel Berger <djberg96@...>
Date: 2007-06-05T03:00:09+09:00
Subject: Re: Deleting a file - is there a less clumsy way to do this?

On Jun 4, 11:42 am, John Joyce <dangerwillrobinsondan...@gmail.com>
wrote:
> On Jun 4, 2007, at 12:15 PM, Daniel Berger wrote:
>
>
>
>
>
> > On Jun 4, 9:26 am, "Ronald Fischer" <ronald.fisc...@venyon.com> wrote:
> >>>> Basically, I am doing something like this:
>
> >>>> if File.exist?(filename)
> >>>>   File.unlink(filename)
> >>>> end
>
> >>> You can get it down to one line by doing this:
>
> >>> File.delete(filename) if File.exist?(filename)
>
> >>> That doesn't look so bad.  :-)
>
> >> Well, I'm not so much concerned about the *lines* of code,
> >> but of the complexity, in particular since this variation
> >> requires to name "filename" twice.
>
> >> (side note: why does this remind me to the ongoing thread
> >> "Introducing the "it" keyword".....  ;-)
>
> >> In Perl for instance, I would simply write
>
> >>   unlink filename;
>
> >> and implicitly void the result...
>
> >> Ronald
>
> > Note that this approach would silently fail on MS Windows if another
> > process had an open handle on the file in question, i.e. the file
> > _does_ exist, but you did not delete it.
>
> > Regards,
>
> > Dan
>
> so check success by checking File.exists? again...?
> Or find out if the file is in use and then wait?- Hide quoted text -
>
> - Show quoted text -

begin
   File.delete(file)
rescue Errno::EACCES
   puts "There's an open handle somewhere"
   raise
rescue Errno::ENOENT
   # Ignore
end

Regards,

Dan