[OE-core] using devtool for rebasing patches

[Alexander Kanavin]

On 11/03/2016 09:29 PM, Paul Eggleton wrote:

> "devtool upgrade" is designed specifically to handle the upgrade case and
> tries to rebase the old patches onto the new version, putting you into
> resolution mode with "git am" if it fails to apply a patch. I appreciate that
> you may now be working through sorting out all of the patches to reduce the
> fuzziness when applying, and that won't help in that scenario, but it would
> definitely be worth considering for upgrades.

Fair enough, although I was not aware of this feature of devtool until 
now, despite being a major contributor of package upgrades to oe-core :) 
We have had a miscommunication issue, it seems.

> I'm open to implementing better support for handling patch application failure
> for devtool modify - in fact there is a bug open for just that:
>
>   https://bugzilla.yoctoproject.org/show_bug.cgi?id=8325

THanks, I just wrote a comment there, and made the patch fuzz bug depend 
on this one :)

Alex