linux-kernel - Re: project wide: git config entry for [diff] renames=true

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Message-ID: <20140925180005.GA11755@peff.net>
Date:	Thu, 25 Sep 2014 14:00:05 -0400
From:	Jeff King <peff@...f.net>
To:	Joe Perches <joe@...ches.com>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Michal Sojka <sojka@...ica.cz>, linux-usb@...r.kernel.org,
	Alan Stern <stern@...land.harvard.edu>,
	Bryan Wu <cooloney@...il.com>, Felipe Balbi <balbi@...com>,
	Linux LED Subsystem <linux-leds@...r.kernel.org>,
	linux-kernel@...r.kernel.org, michal.vokac@...ap.cz,
	git <git@...r.kernel.org>
Subject: Re: project wide: git config entry for [diff] renames=true

On Thu, Sep 25, 2014 at 08:48:31AM -0700, Joe Perches wrote:

> On Thu, 2014-09-25 at 17:03 +0200, Greg Kroah-Hartman wrote:
> 
> > In the future, please generate a git "move" diff, which makes it easier
> > to review, and prove that nothing really changed.  It also helps if the
> > file is a bit different from what you diffed against, which in my case,
> > was true.
> 
> Maybe it'd be possible to add 
> 
> [diff]
> 	renames = true
> 
> to the .git/config file.
> 
> but I don't find a mechanism to add anything to the
> .git/config and have it be pulled.

There is no such mechanism within git. We've resisted adding one because
of the danger of something like:

  [diff]
    external = rm -rf /

diff.renames is probably safe, but any config-sharing mechanism would
have to deal with either whitelisting, or providing some mechanism for
the puller to review changes before blindly following them.

-Peff
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