linux-kernel - Re: [PATCH RFC] kconfig: place git SHA1 in .config output if in git tree

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Message-ID: <m3d3zn4hg8.fsf@lugabout.jhcloos.org>
Date:	Mon, 01 Mar 2010 20:53:19 -0500
From:	James Cloos <cloos@...loos.com>
To:	paulmck@...ux.vnet.ibm.com
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, zippel@...ux-m68k.org, mingo@...e.hu,
	akpm@...ux-foundation.org
Subject: Re: [PATCH RFC] kconfig: place git SHA1 in .config output if in  git tree

>>>>> "Paul" == Paul E McKenney <paulmck@...ux.vnet.ibm.com> writes:

Paul> Agreed!  The "-dirty" modifier for the case of changes not yet
Paul> checked into git looks especially helpful.

JimC> Except that the script calls »git update-index --refresh --unmerged«
JimC> and »git diff-index --name-only HEAD«, both of which are painfully
JimC> slow and resource intensive.

JimC> I'd hate to have that run every time I make a kernel.

Paul> Good point...  Should we have an environment variable that controls
Paul> this behavior?

I wouldn't mind the intial idea: just the abbreviated top of three hash.

I was, next, going to write that CONFIG_LOCALVERSION_AUTO already exists
for that, but LOCALVERSION_AUTO calls scripts/setlocalversion these days
and that is what I'd prefer to avoid.  [SIGH]

Shows how long it has been since I last used it.  I stopped using it
when I was maintaining my .config in git.  Now I maintain .config in a
separate git repo, for the express purpose of avoiding a merge (rather
than a fast forward) when I run git pull.  Something that a local edit
of scripts/setlocalversion will, of course, prevent.

Anyone up for a CONFIG_LOCALVERSION_AUTO_DO_NOT_BOTHER_WITH_DIRTY? ☺

-JimC
-- 
James Cloos <cloos@...loos.com>         OpenPGP: 1024D/ED7DAEA6
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