[OE-core] [RFC PATCH 2/2] license_image.bbclass: check and reject packages which have incompatible licenses

[Mikko.Rapeli at bmw.de]

On Wed, Oct 09, 2019 at 09:41:28PM +0200, Alexander Kanavin wrote:
> It wouldn't be too hard to add a condition that checks the (image-specific)
> whitelist, I just wanted to gather a bit of feedback for the overall idea :)

I like the idea. I'm building images with e.g. GPLv3 forbidden but I enable building
lots of GPLv3 components because they are needed in e.g. ptests. Resulting distro
config snippet is large with lots of lines like:

WHITELIST_GPL-3.0 += "autoconf"
PACKAGE_EXCLUDE += "autoconf-dbg autoconf-staticdev autoconf-dev autoconf-doc autoconf-locale autoconf"
WHITELIST_GPL-3.0 += "ccache"
PACKAGE_EXCLUDE += "ccache-sdktests-dbg ccache-sdktests ccache-dbg ccache-staticdev ccache-dev ccache-doc ccache-locale ccache"

In testing then I start with the pure product image without GPLv3 components and extend it
with extra packages which are needed for the test execution. I have separate product
feature and SW component test phases. Only in the latter case target SW is changed before
test execution.

I want to avoid building separate test images with GPLv3, because in the past
test vs. product images resulted in only the test images being actually tested.

But I can see that having separate product and test images from a single build could
be useful.

Thanks for proposing this patch!

-Mikko