[Sussex] Ruby file open question

[Ronan Chilvers]

Hi Thomas

On Mon, 31 Oct 2005 15:29:11 +0000
Thomas Adam <thomas at edulinux.homeunix.org> wrote:

> On Mon, Oct 31, 2005 at 10:30:20AM +0000, Ronan Chilvers wrote:
> > Hi folks
> >
> > Any rubyers out there know if you can do this (Perl):
> 
> Yes.
> 
> > open(TAIL, "tail -f /var/log/messages");
> >
> > while(<TAIL>)
> >
> >  #do stuff
> >
> > } close(TAIL);
> >
> > but in ruby? I've found and played with the file-tail gem but its
> > very slow to respond to file changes.
> 
> The problem with ruby-gems is that it's still in its infancy with
> regards to supplying whats on the RAA [1].  That said, file-tail is
> the way to go.  Note that you need to quantify what you mean by
> "slow" in this context.  You can specify the delay for the checking
> of the file change.  (see File::interval)

I want the script to respond to changes in a logfile fairly quickly.
Currently it takes about 2 or 3 seconds for a change in the logfile to
be picked up by the script...  I'll play around with the interval -
thanks for pointing that out.

Cheers

Ronan



-- 
Ronan
e: ronan at thelittledot.com
t: 01903 739 997
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