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Date: Thu, 10 Dec 2015 11:06:13 +0100
From: "Nicklas Karlsson (nicklas DOT karlsson17 AT gmail DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
To: geda-user AT delorie DOT com
Subject: Re: [geda-user] gsch2pcb after refdes-renum? (If implemented
 syncronization detail)
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DJ Delorie <dj AT delorie DOT com> wrote:

> > Is there still a problem if the cyclic U1->U2->U3->U1 rename is
> > guaranteed to be atomic?
> 
> You still have two problems: First, if you accidentally run the script
> twice, you end up with the wrong refdeses.  Second, you need to
> remember the refdes the part had *the last time you sync'd*.  If the
> layout[*] still had U14 because you last sync'd yesterday and you've
> renamed it five times today, you're out of luck.
> ...

Someone suggested forward annotation work just fine then it should be like this.
  1. Figure out old-->new refdes, maybe possible from old update file? Or gschem store/send information?
  2. Execute rename exactly once without stuck in the middle.


Nicklas Karlsson