Add support for "Do Not Populate" about jlc-plugin-for-kicad HOT 33 CLOSED

Added an issue for exposing DNP support in Python
Feel free to fill in any blanks
https://gitlab.com/kicad/code/kicad/-/issues/14406

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Sounds good,
Do you know by any chance where is the DNP variable is located in the API?

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I asked one of the lead devs in a private chat and got the following answer: "It is in the attributes structure. If it is set, the attribute 'DNP' will exist"

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It seems that KiCad 7 uses both exclude from BOM and DNP:

I am not sure that is the right way to go now.
Maybe it's a good idea to open to discussion with the community if DNP also means exclude from BOM.

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"Exclude from BOM" is the replacement of "Virtual Attribute"
Hence meant for logos, mounting holes, fiducials etc. Also typically set in the symbol, and not per case basis.

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https://gitlab.com/kicad/code/kicad/-/issues/8908

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It seems that the DNP attribute is only accessible from eeschema.
I do not see any reference for it in the pcbnew API.
Can you ask at the thread you opened in the KiCad forum if that is possible? I can find it.

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I'll see if I can get someone more knowledgeable than me to chime in.

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Those Kicad masking flags are still complicated but it seems that Kicad 7.0.1 added a specific flag to exclude from the position file. Does this JLC plugin support it? I need to upgrade 7.0.0 to 7.0.1 to try it.

https://gitlab.com/kicad/code/kicad/-/issues/14332#note_1317963024

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I don't think its new, only the check box was added, it should work.
I wish they would propagate the DNP flag as well.

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After some investigation, it seems that checking the DNP flag will set exclude from position file automatically.
Which means that this feature is supported.

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Will it still be added to the BOM file?

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Yes

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Isn't that just creating an error with JLC? 🤔
When component's are in the BOM but not in the CPL file

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Isn't that just creating an error with JLC? 🤔
When component's are in the BOM but not in the CPL file

It might, but that is how KiCad design to work right now (I have read couple of post about it), I will let them decide how to address it.

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Indeed it seems so :)
I think people and vendors like this handled in different fashions.

Lot of vendors just wants the DNP parts in the BOM but marked as DNP. Hence why it's not left out from Kicad side.
For JLC it should definitely be left out of both BOM and CPL file.

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I understand the concern, that's the main reason I'm trying to get people to support the DNP field.
Currently (as far as I can tell) the DNP marking doesn't do anything when exporting to JLC. this mean I need to manually remove them from the Exported files

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Sounds awesome :D thanks for your work!

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So, if I will set the LCSC Part # as DNP for all the part in the BOM that satisfies:

    'dnp' in footprint.GetProperties().keys()

will be a better practice?

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Done.
But in my testing that property was not present.

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@bennymeg Thanks for adding, How can I use the "Nightly" version of your plugin for testing.

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Published locally as 2.3.0.
Install it from zip (see readme for instructions).

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Tested, and it works great :)

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Seems like JLC is getting "smarter".
Now it will just assign the LCSC number if Value and footprint matches.
I think we might have to change Value to DNP or completely leave it out

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They even assign random Partnumbers now if the LCSC partnumber is missing.
@bennymeg Would it be possible to make an option to just leave the component out of the BOM?
Currently I Manually rework my BOM files after export to remove it

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I'll try to think of a fix

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@zapta

If you refer to the field called "Exclude from bill of materials", you are correct.
Unfortunately this is not the intended use of the field.
I have described this earlier in this thread.
You can find the developer discussion here:
https://gitlab.com/kicad/code/kicad/-/issues/8908

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