[yocto] require and image.bbappend

[Matteo Facchinetti]

Hi Stefano,

Il giorno ven 5 apr 2019 alle ore 18:33 Stefano Babic <sbabic at denx.de> ha
scritto:

> Hi Matteo,
>
> On 05/04/19 17:54, Matteo Facchinetti wrote:
> >
> > Hi Stefano,
> >
> > Il giorno gio 4 apr 2019 alle ore 17:32 Stefano Babic <sbabic at denx.de
> > <mailto:sbabic at denx.de>> ha scritto:
> >
> >     Hi Matteo,
> >
> >     On 04/04/19 15:35, Matteo Facchinetti wrote:
> >     > Hi,
> >     >
> >     > I encountered a problem when try to add packages in my image
> >     recipe, but
> >     > I don't understernd if I wrong something or I have to do it in
> >     another way.
> >     >
> >     > In detail, in my common_layer there are:
> >     >    - image_base.bb <http://image_base.bb> <http://image_base.bb> :
> >     yocto base image
> >     >    - image_with_graphicsupport.bb
> >     <http://image_with_graphicsupport.bb>
> >     <http://image_with_graphicsupport.bb>
> >     > : where include image_base.bb <http://image_base.bb>
> >     <http://image_base.bb> (require
> >     > image_base.bb <http://image_base.bb> <http://image_base.bb>)
> >     >
> >     > Now, in my BSP layer, I want to add some packages to the
> >     image_base.bb <http://image_base.bb>
> >     > <http://image_base.bb>, so I create here the image_base.bbappend
> file.
> >     > But when I try to compile image_with_graphicsupport.bb
> >     <http://image_with_graphicsupport.bb>
> >     > <http://image_with_graphicsupport.bb> the result is not how
> expected.
> >     > Image_with_graphicsupport.bb doesn't add packages contained in
> >     > image_base.bbappend but only the packages contained in
> >     image_base.bb <http://image_base.bb>
> >     > <http://image_base.bb>.
> >     >
> >     > Is true that when include an image to another with require
> statement,
> >     > you can't extend the base image with a bbappend?
> >
> >     Yes, it is true, because the file is included and it is not anymore
> like
> >     a recipe that can be extend. It will be searched for a
> >     image_with_graphicsupport.bb <http://image_with_graphicsupport.bb>
> >     append, not image_base.bbappend.
> >
> >
> > Ok, understood.
> >
> >
> >     IMHO you can easy reach your goal if you write a packagegroup recipe
> >     where you put all packages you have in the IMAGE_INSTALL of your
> >     image_base.bb <http://image_base.bb>. You can then have a .bbappend
> >     for the packagegroup in
> >     your BSP layer (and this then works) and you put the packagegroup in
> the
> >     IMAGE_INSTALL directive of both image_base.bb <http://image_base.bb>
> and
> >     Image_with_graphicsupport.bb.
> >
> >
> > Thank you very much for this tip.
> > I have done exactly in this way and works perfectly and it's easy to
> manage.
> >
>
> :-)
>
> > However there's a part containded in the image_base.bb
> > <http://image_base.bb> recipe:
> >     inherit core-image
> >     IMAGE_FEATURE_append = "..."
> >
> > that I had to duplicate into the Image_with_graphicsupport.bb too.
> >
> > It's not a problem but is it possible to put them in a common recipe
> > like packagegroup?
>
> Then simply write a image_base.inc to factorize what is common and in
> both recipes you can include it with "require image_base.inc"
>
>
 Oh yes, I didn't think about that.
These parts are statics and the "require image_base.inc" statement into the
both images recipes is the simplest way and solve the problem... :-)

Thanks again.

Regards,

Matteo Facchinetti
Sirius Electronic Systems
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