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Date:	Mon, 14 Aug 2017 20:14:04 +0200 (CEST)
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Subject:	Re: [geda-user] [pcb] mainline: redundant attributes: bug or
	feature?
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Hello Bert,

On Mon, 14 Aug 2017, Bert Timmerman (bert DOT timmerman AT xs4all DOT nl) [via geda-user AT delorie DOT com] wrote:

> Hi Igor,
>
> Always nice to chime in after a day at the day-job and everything about the 
> subject is already been said, anyway here goes my EUR 0.02 : IMO common sense 
> dictates unique keys as to prevent bad things from happening ;-)
>
> Another issue pcb has, and also pcb-rnd might have, with the "Import 
> Schematics" attribute is the lack of (re)loading the netlist derived from the 
> schematic after loading the pcb layout file in a new session (after the 
> "import::src0" and following sources have been set).
>
> Looking at the pcb code base, and confirmed by DJ, this import is run just 
> once (immediately after selecting the file name and starting the import 
> process).
>
> For me this looks like obsoleting the attribute from the very moment you close 
> the file and/or pcb application.
>
> Maybe you have solved this issue already in pcb-rnd ?


I am not sure what you mean. If you mean automatic re-import upon change 
in the schematics files: I don't like that idea, I prefer explicit user 
commands in pcb-rnd.

If you mean calling the import action without a file name in subsequent 
imports: I think it does remember the source schematic names via 
those srcN board attributes. At least the code says so, but I haven't 
tested it.

>
> As an aside, it looks like other methods involving "make" may be possible too: 
> "import::mode" is defaulted to "gentlist", other netlisting tools could be 
> implemented here as well (xorn ?).

Yup, make is supported both in pcb and pcb-rnd.

I think xorn should work fine with gnetlist.

In pcb-rnd we also have other netlist importers (tedax, tinycad, mentor 
graphics's sch, ltspice); they are separate plugins, I didn't want to pack 
them all in import_sch, but they use the same core features.

pcb-rnd is most probalbly going to support hierarchic netlists (in a few 
months) - in that case we'll need a new netlist format. I think xorn would 
support the new format. I would probably put that format's parser in the 
import_sch plugin as it'd be the "native netlist format" for pcb-rnd.

Best regards,

Igor2

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