Re: RFC: Syntax for logging

[Daniel Jacobowitz <drow@mvista.com>]

On Sun, Jun 22, 2003 at 02:41:41PM -0400, Daniel Jacobowitz wrote:
> On Sun, Jun 22, 2003 at 02:32:41PM -0400, Andrew Cagney wrote:
> > >
> > >Hmm, two options:
> > >  set logging
> > 
> > Not this.  It should behave like:
> > 
> > (gdb) set architecture
> > "set architecture" must be followed by "auto" or an architecture name.
> 
> OK.
> 
> > 
> > >  unset logging
> > >
> > >I like "unset logging"; how about you?  The only thing we use unset for
> > >at the moment is "unset environment" but I think it extends naturally.
> > 
> > so (slightly wierd) yes this.  Be sure to mention it in the help 
> > message.  Perhaphs, also accept ``set logging off'', and ``set logging 
> > on'' as those are the first things I'd try :-)
> > 
> > Hmm, just noticed, the options are optional, I was thinking that they 
> > were required.
> > 
> > 	set logging [redirect|log] [append|overwrite] FILE
> > 
> > The syntax will lead to confusion with things like:
> > 
> > 	set logging l
> > or
> > 	set logging redirect a
> 
> Ugh, I'd forgotten about the abbreviations.
> 
> > suggest instead:
> > 
> > set logging on [FILE]
> > 	default gdb.log, log, append?
> > set logging off
> > set logging file FILE
> > set logging append {true,false}
> > set logging redirect {true,false}
> > 
> > so that the [FILE] isn't context dependent.  Realisticly, I think people 
> > will only use:
> > 
> > 	set logging on
> > 	set logging off
> 
> That looks good.  I'll just ditch the unset idea.

Hmm, what do you think of this idea?

The above set commands, and also:
  log file CMD
"log" will obey "set logging append" and "set logging redirect".

An alternative, even simpler:
  log CMD
"log" will obey append, redirect, and file, but works even when logging
is off.

-- 
Daniel Jacobowitz
MontaVista Software                         Debian GNU/Linux Developer