[rancid] Re: Pinning Moving Config Lines

[john heasley]

Wed, Feb 04, 2009 at 02:17:58PM +0100, Michael Stefaniuc:
> john heasley wrote:
> > Wed, Jan 28, 2009 at 12:14:06PM +0100, Michael Stefaniuc:
> >> john heasley wrote:
> >>> Tue, Jan 27, 2009 at 11:18:14AM +0100, Michael Stefaniuc:
> >>>> is there an easy way to assign a fixed position to config lines that
> >>>> move around during two invocations of "write term"?
> >>>>
> >>>> In the Cisco SAN-OS devices the "callhome" config line moves between the
> >>>> front and end of the "fcalias name" sections producing bogus change reports.
> >>> how so?  please show an example of the moving.
> 
> >>>> The solutions I see on a quick glance (none satisfactory):
> >>>> - The absolute easiest way would be to just drop the line but for this
> >>>>   config line it doesn't seem like a wise idea.
> >>>> - In the WriteTerm function create a separate ProcessHistory
> >>>>   "fcalias name" section with sorting and add "callhome" to that section
> >>>>   too. Drawback is that I would have to parse the "fcalias name"
> >>>>   sections correctly too.
> >>>>
> >>>> Does anybody know a nicer way to pin the moving config line down?
> >>> We'd normally just sort it.
> >> Yeah, will be a pita in this case.
> > 
> > i really dislike ciscos for stuff like this.
> > 
> > try adding a match for it like
> > /^callhome/ &&
> > ProcessHistory("COMMENTS","keysort","Z0","$_") && next;

you might also try this with "" instead of "COMMENTS", or just filter it.

> That would have been too easy if it would have worked. But it doesn't; I
> tried it out but the "callhome" line still moves around.
> 
> I'll hack something up as it is annoying; depending on the amount of
> "spare time" it will be a hack or a proper patch I can submit upstream.
> 
> bye
> 	michael
> -- 
> Michael Stefaniuc                           Tel.: +49-711-96437-199
> Consulting Communications Engineer          Fax.: +49-711-96437-111
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