[OE-core] Image history (testlab)

[Paul Eggleton]

Hi Koen / Beth / all,

Following on from my work extending packagehistory (which is still under 
review), I'm looking at tracking history of the content of images so we can 
get warnings about regressions. Thanks to Koen we've had this capability via 
testlab.bbclass in OE for some time now, and from there into meta-oe, but what 
I'd like to do now is bring this into OE-core and extend it so that it 
supports rpm (or even better, all of the package backends we support.) This 
could involve abstracting the package backend functionality out into 
rootfs_*.bbclass.

It also looks like testlab.bbclass in meta-oe has some license dumping 
functionality. Beth, does that mesh with what you've been working on / 
preparing for Yocto 1.2?

Thoughts?

Cheers,
Paul

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Paul Eggleton
Intel Open Source Technology Centre