linux-kernel - Re: [PATCH v3 1/1] scripts: Add add-maintainer.py

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Message-ID: <ZRSwTBkhlg5kj7jf@quicinc.com>
Date:   Wed, 27 Sep 2023 15:44:28 -0700
From:   Guru Das Srinagesh <quic_gurus@...cinc.com>
To:     Pavan Kondeti <quic_pkondeti@...cinc.com>
CC:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Guru Das Srinagesh <quic_gurus@...cinc.com>,
        Masahiro Yamada <masahiroy@...nel.org>,
        "Nick Desaulniers" <ndesaulniers@...gle.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Nicolas Schier <nicolas@...sle.eu>,
        "Konstantin Ryabitsev" <konstantin@...uxfoundation.org>,
        Kees Cook <keescook@...omium.org>,
        Bjorn Andersson <andersson@...nel.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, Will Deacon <will@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        <linux-kernel@...r.kernel.org>, <kernel@...cinc.com>,
        <workflows@...r.kernel.org>, <tools@...ux.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-arm-msm@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <linux-pm@...r.kernel.org>
Subject: Re: [PATCH v3 1/1] scripts: Add add-maintainer.py

On Sep 27 2023 10:21, Pavan Kondeti wrote:
> On Mon, Aug 28, 2023 at 10:21:32AM +0200, Krzysztof Kozlowski wrote:
> > On 26/08/2023 10:07, Guru Das Srinagesh wrote:
> > > This script runs get_maintainer.py on a given patch file (or multiple
> > > patch files) and adds its output to the patch file in place with the
> > > appropriate email headers "To: " or "Cc: " as the case may be. These new
> > > headers are added after the "From: " line in the patch.
> > > 
> > > Currently, for a single patch, maintainers and reviewers are added as
> > > "To: ", mailing lists and all other roles are added as "Cc: ".
> > > 
> > > For a series of patches, however, a set-union scheme is employed in
> > > order to solve the all-too-common problem of ending up sending only
> > > subsets of a patch series to some lists, which results in important
> > > pieces of context such as the cover letter (or other patches in the
> > > series) being dropped from those lists. This scheme is as follows:
> > > 
> > > - Create set-union of all maintainers and reviewers from all patches and
> > >   use this to do the following per patch:
> > >   - add only that specific patch's maintainers and reviewers as "To: "
> > >   - add the other maintainers and reviewers from the other patches as "Cc: "
> > > 
> > > - Create set-union of all mailing lists corresponding to all patches and
> > >   add this to all patches as "Cc: "
> > > 
> > > - Create set-union of all other roles corresponding to all patches and
> > >   add this to all patches as "Cc: "
> > > 
> > > Please note that patch files that don't have any "Maintainer"s or
> > > "Reviewers" explicitly listed in their `get_maintainer.pl` output will
> > 
> > So before you will ignoring the reviewers, right? One more reason to not
> > get it right...
> > 
> > > not have any "To: " entries added to them; developers are expected to
> > > manually make edits to the added entries in such cases to convert some
> > > "Cc: " entries to "To: " as desired.
> > > 
> > > The script is quiet by default (only prints errors) and its verbosity
> > > can be adjusted via an optional parameter.
> > > 
> > > Signed-off-by: Guru Das Srinagesh <quic_gurus@...cinc.com>
> > > ---
> > >  MAINTAINERS               |   5 ++
> > >  scripts/add-maintainer.py | 164 ++++++++++++++++++++++++++++++++++++++
> > >  2 files changed, 169 insertions(+)
> > >  create mode 100755 scripts/add-maintainer.py
> > > 
> > 
> > I do not see the benefits of this script. For me - it's unnecessarily
> > more complicated instead of my simple bash function which makes
> > everything one command less than here.
> > One more thing to maintain.
> 
> Thanks for your bash script. I slightly modified it to keep maintainers
> in To and rest in Cc. 
> 
> git send-email --dry-run --to="$(scripts/get_maintainer.pl --no-multiline --separator=, --no-r --no-l --no-git --no-roles --no-rolestats --no-git-fallback *.patch)" --cc="$(scripts/get_maintainer.pl --no-multiline --separator=, --no-m --no-git --no-roles --no-rolestats --no-git-fallback *.patch)" *.patch

FYI, b4 has "b4.send-auto-to-cmd" and "b4.send-auto-cc-cmd" [1] as well to
override its default behaviour. You can just set the above two b4 config
options as you like and it will do the right thing.

Guru Das.