[dpdk-dev] Suggestion to improve the code review

[Jerin Jacob]

On Wed, May 27, 2020 at 3:29 PM Burakov, Anatoly
<anatoly.burakov at intel.com> wrote:
>
> On 27-May-20 10:28 AM, Jerin Kollanukkaran wrote:
> > I think, original discussion[1] on this topic got lost in GitHub vs current workflow.
> >
> >
> > I would like to propose GitHub "CODEOWNERS"[2] _LIKE_ scheme for DPDK workflow.
> >
> > Current scheme:
> > - When we submit a patch to ml, someone(Tree maintainer[3]) needs to manually
> > delegate the patch to Tree maintainer in patchwork.
> > - Tree maintainer is not responsible for the review of the patch but only responsible
> > for merging _after_ the review. That brings the obvious question on review responsibility.
> >
> >
> > Proposed scheme:
> > - In order to improve review ownership, IMO, it is better the CI tools delegate
> > the patch to the actual maintainer(who is responsible for specific code in MAINTAINERS file)
> > - I believe, it provides a sense of ownership, avoids last-minute surprise on
> > review responsibility and improve review traceability.
> >
> > Implementation of the proposed scheme:
> > GitHub provides a bot for CODEOWNERS integration, Similar alternative is possible with
> > patchwork with "auto delegation scheme" using the flowing methods:
> >
> > a) https://patchwork.readthedocs.io/en/latest/usage/delegation/
> > b) https://patchwork.readthedocs.io/en/latest/usage/headers/
> >
> > I think, option (a) would be relatively easy to change without introducing the new tools.
> >
> > Thoughts?
> >
> > [1]
> > http://mails.dpdk.org/archives/dev/2020-May/168740.html
> > [2]
> > https://github.com/zephyrproject-rtos/zephyr/blob/master/CODEOWNERS
> > [3]
> > https://patchwork.dpdk.org/project/dpdk/
> >
>
> The "which patches should i review first" button is a huge +1000 from
> me, as this has been a big issue i've had with current workflow for a
> long time. Thomas has mentioned "Cc:" as a "fine grained" system to
> assign patches, but the truth is, CC is not a good way of doing it
> because i get CC'd in all kinds of stuff, and the important patches get
> lost.
>
> That said, i don't think it's that easy, because more often than not,
> patches touch a lot of different areas, so a one line change in meson, a
> test and a line in EAL gets half of DPDK maintainers CC'd into the
> patch. I wonder if there is a mechanism for some kind of "threshold" for
> assigning people to the patch - i.e. if a one-liner is half of the
> changes in the patch, then maintainer gets CC'd, but if a one-liner is
> just one of a thousand other unrelated lines, then perhaps there's no
> need to CC the maintainer... or something along those lines :) there's a
> machine learning project in here somewhere :D

Github has a scheme on the review on Round-robin fashion if it
touching in the multiple areas.
it will be too much for patchwork. At least in patchwork, if you are
done with the review or you can assign to another code maintainer
manually.
https://help.github.com/en/github/setting-up-and-managing-organizations-and-teams/managing-code-review-assignment-for-your-team


>
> --
> Thanks,
> Anatoly