On Mon, Dec 8, 2014 at 8:27 PM, Gary Thomas <g...@mlbassoc.com> wrote: > I have a base image in my distribution (e.g. xyz-image-base.bb). > Many of my layers will build on this using 'require', e.g. > require recipes-base/images/xyz-image-base.bb > > Sometimes a given layer may create many such image recipes, each > using 'require' to fill in the base. It would be nice to be able > to adjust the base recipe using a .bbappend in the layer so that > all images built by that layer use the same changes. I've found > that this doesn't work as .bbappend files do not seem to be used > by 'require'. > > It's easy to see this bug in action - just create a file > 'core-image-minimal.bbappend' which contains: > CORE_IMAGE_EXTRA_INSTALL += " non-existent-package" > With this, you *can* build core-image-minimal-dev (which uses > 'require' to build on core-image-minimal) but not core-image-minimal. > > Is there some [good] reason for this behaviour or a bug?
this isn't a bug. a .bbappend is to append content to a recipe. when you build core-image-mininal-dev, this is the actual recipe name. so if you want a .bbappend it would be core-image-minimal-dev.bbappend. if you actually try to build core-image-minimal, then the .bbappend would be applied. this is good behavior here. nothing wrong. > Could it be made to work the way I had hoped/expected? i don't see any easy way to do that. - you might be able to get something to work using layer priorities , but even if it works it's quite fragile. - you can create another level of indirection, in the layer that requires customization, you create xyz-image-base-layer-foo.bb, and require that file in all your images, so that you can introduce changes at one place. - you can use variables in the generic image to offer several configurations, and set these variables at the layer level - maybe using a class instead of a recipe might make sense easier to manage as well. -- _______________________________________________ yocto mailing list yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/yocto
