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Date:	Wed, 9 Dec 2015 20:28:45 -0500
Message-Id:	<201512100128.tBA1SjW8000759@envy.delorie.com>
From:	DJ Delorie <dj AT delorie DOT com>
To:	geda-user AT delorie DOT com
In-reply-to:	<20151210011215.14229.qmail@stuge.se> (geda-user@delorie.com)
Subject:	Re: [geda-user] gsch2pcb after refdes-renum? (If implemented
	syncronization detail)
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> 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.

This whole identity-across-projects problem is hard, especially when
you consider how many ways "refdes as identity" is abused in gnetlist
(slots, mcus, heirarchy, whatever).  Which makes it a research-level
problem, which is why I asked if anyone was working on it.



[*] or whatever else jpd is exporting to

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