linux-kernel - Re: RFC: get_maintainer.pl: append reason for cc to the name by default

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Message-ID: <20100927190026.20ddc268@schatten.dmk.lab>
Date:	Mon, 27 Sep 2010 19:00:26 +0200
From:	Florian Mickler <florian@...kler.org>
To:	Ted Ts'o <tytso@....edu>
Cc:	Joe Perches <joe@...ches.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Stephen Hemminger <shemminger@...tta.com>,
	Wolfram Sang <w.sang@...gutronix.de>,
	linux-kernel@...r.kernel.org
Subject: Re: RFC: get_maintainer.pl: append reason for cc to the name by
 default

On Mon, 27 Sep 2010 11:44:41 -0400
Ted Ts'o <tytso@....edu> wrote:

> On Mon, Sep 27, 2010 at 04:57:48PM +0200, Florian Mickler wrote:
> > 
> > Would in essence have the same effect, but I think it's slightly better
> > to have some shorter tags in the mail addresses, as I expect them to
> > actually show up on lkml quite a bit.
> 
> What if there are no tags on mail addresses that come from the
> MAINTAINERS file, but only tags on the mail addresses that come from
> guessing wildly based on git sign-offs?  People should just be looking
> in the MAINTAINERS file, after all, and I don't think that's something
> that needs an explanation.
> 
> The thing that needs explanation is when someone like Steve Hemminger
> gets cc'ed on a patch for fs/ext4/acl.c, which really makes no sense
> at all, where you desperately need some kind of tag:
> 
> shemminger@...tta.com (Wild guess using get_maintainer.pl --git)
> 
> 	      	    	  			  - Ted

Might make sense to omit the tags on the MAINTAINER-source. I can
agree to your reasoning there. 

As far as I can see, the use and the use cases for the git-part of
get_maintainer.pl are mostly to get patches to not-so-well-maintained
parts of the tree upstream. What I envision for the git part is a
scoring based classification scheme that uses all readily available
information of the git-history to determine relevant people for patch
review and patch routing.

I already have implemented a small parser that extracts that information
out of git-log and makes them available to the script, but didn't have
time to wire it up yet. 

Another improvement (beyond finding a decent heuristic based on the
artifacts 'authorship', 'signed-off-by', 'reviewed-by', 'acked-by',
'committer' and nr-of-lines-changed.. and maybe time) is probably to
not make an arbitrarily 1-Year-Back cut-off, but to check the last N
commits on that region of the tree. (I'm thinking of the more
"settled down" areas of the tree here)
But let's see what I come up with...

Regards,
Flo
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