linux-kernel - Re: helping with tracking commits across repos

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Message-ID: <87k3nsv3z8.fsf@mn.cs.uvic.ca>
Date:	Tue, 23 Apr 2013 23:26:35 -0700
From:	D M German <dmg@...c.ca>
To:	Greg KH <greg@...ah.com>
Cc:	stable@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: helping with tracking commits across repos

 Greg> On Mon, Apr 15, 2013 at 05:13:45PM -0700, D M German wrote:
 >> 
 >> 
 >> Greg KH twisted the bytes to say:
 >> 
 >> >> http://o.cs.uvic.ca:20810/perl/next.pl
 >> 
 Greg> Yes, that's a great thing.  Maybe the ability to see the subject: line
 Greg> of the commit somewhere easier than having to click through to the patch
 Greg> would be nice, so we can just glance at the report and say, "Look at all
 Greg> of the btrfs patches that showed up out of nowhere, what happened?"
 >> 
 Greg> Oh, and if you could do it for a specific kernel release, not a date
 Greg> range, that would be nice (i.e. report for 3.9-rc1, 3.8-rc1, 3.7-rc1,
 Greg> etc.)
 >> 
 >> What would be the simplest approach to getting the date? I suspect that
 >> it can be done by doing some command line magic in Linus git repo.

 Greg> You want to look at the commits from the last major release (i.e. 3.8)
 Greg> to the -rc1 release, (i.e. 3.9-rc1).  You can't look at the dates,
 Greg> that's not going to reflect when the patch landed in Linus's branch.

Hi Greg,

It took me longer than expected, but I finally got it working.

I have a heuristic to estimate when a commit is merged by Linus. It
seems to work well in commits since 2008. 

The commits that mark the releases are nicely labeled by Linus.  Since I
know in which commit any commit is merged by Linus I can determine what
release the commit is part of. 

Take a look:

http://o.cs.uvic.ca:20810/perl/next.pl

It is only doing 2013, but if needed, I can expand the range of
dates. Is suspect older are not that interesting any more.

I still have to "cron" the update of some data to fully do this report
automatically. I hope to do that very soon.

It will help to have some extra eyes. If anybody finds a bug please let
me know.

I also improved some of the other reports to include the log of the
commit whenever is makes sense.

I haven't tried the suggestions on how to reduce space... that is my
next goal.

--daniel

--
Daniel M. German                  "Beauty is the first test; there is no
                                   permanent place in the world for ugly
   G. H. Hardy ->                  mathematics."
http://turingmachine.org/
http://silvernegative.com/
dmg (at) uvic (dot) ca
replace (at) with @ and (dot) with .

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