Re: [yocto] How does one add do_fetch, do_unpack to an image recipe?

["John Klug" <john.klug@multitech.com>]

Thanks for your great help.  A native recipe is what I needed with data in it only.  So my native recipe copies files into ${D}${datadir}/${PN}.

Then my image build uses DEPENDS= to bring in the native recipe.

Then my IMAGE_POSTPROCESS_COMMAND can reference ${STAGING_DATADIR_NATIVE}/[native recipe name] to find the data it needs.

Then I don't need to patch the bbclass file.


From: yocto@lists.yoctoproject.org <yocto@lists.yoctoproject.org> on behalf of Josef Holzmayr <jester@theyoctojester.info>
Sent: Monday, August 9, 2021 12:41 AM
To: yocto@lists.yoctoproject.org
Subject: Re: [yocto] How does one add do_fetch, do_unpack to an image recipe?
    
Howdy!

Am 07.08.2021 um 02:25 schrieb John Klug:
> I am using dunfell.
> 
> In the documentation I see:
> 
>  http://mail2.multitech.com:32224/?dmVyPTEuMDAxJiYyOTU2NDk0NDY2NmQ1NDQyND02MTEwQzAxOF8yMDIxXzcwNzFfMSYmYjc2MzZjMTgxNGE4NTkzPTIzMzMmJnVybD1odHRwcyUzQSUyRiUyRnd3dyUyRXlvY3RvcHJvamVjdCUyRW9yZyUyRmRvY3MlMkZjdXJyZW50JTJGYml0YmFrZS11c2VyLW1hbnVhbCUyRmJpdGJha2UtdXNlci1tYW51YWwlMkVodG1sJTIzdW5zZXR0aW5nLXZhcmlhYmxlcw==
> 
> In case some filter removes the yocto URL, I am referring to:
> 
>      docs/current/bitbake-user-manual/bitbake-user-manual.html#unsetting-variables
> 
> Which has this example:
> 
>      unset do_fetch[noexec]
> 
> If I put this in my image recipe, the do_fetch noexec item still exists.
> 
> In order to fix this problem I had to patch openembedded-core/meta/classes/image.bbclass, and remove the line setting do_fetch[noexec]="1" and the ones following.
> 
> I need to do a fetch for my IMAGE_POSTPROCESS_COMMAND.

 From first glance, I'd guess that the approach is just not correct. If 
that thing to be fetched also needs to go *into* the image: make it a 
recipe on its own. If you only need it during build time, then it should 
probably be a -native dependency, and therefore again a recipe on its 
own. Then the image recipe can depend on it and use its contents during 
the build/postprocess stage.

Greetz

> 
> 
> Thanks.
> 
> 
> 
> 
>