[yocto] do_populate_sdk_ext always being triggered

[Paul Eggleton]

Hi Andrea,

On Wednesday, 27 September 2017 10:17:42 PM NZDT Andrea Galbusera wrote:
> I noticed that periodically running 'bitbake -c do_populate_sdk_ext' for an
> image in my CI loop does always trigger the task to be executed even if no
> changes where applied either to metadata or to the configuration between
> two iterations. Is this expected? If so, why? Shouldn't SDK artifacts
> exploit the sstate as i.e. images do?

Ideally yes, but it's hard for us to tell if the metadata has changed or not, 
given that we care not just about the actual metadata but also any other files 
(scripts etc.) that come with it. Thus we've erred on the side of making it 
build every time.

Cheers,
Paul

-- 

Paul Eggleton
Intel Open Source Technology Centre