From: Junio C Hamano <junkio@cox.net>
Date: Fri, 24 Nov 2006 00:18:45 GMT
Subject: Re: [PATCH] config option core.showroot to enable showing the diff of the root commit
Message-ID: <7vejrthf2y.fsf@assigned-by-dhcp.cox.net>
In-Reply-To: <slrnemcc0b.ncc.Peter.B.Baumann@xp.machine.xx>

Peter Baumann <Peter.B.Baumann@stud.informatik.uni-erlangen.de>
writes:

>>> I'm not sure if making core.showroot acting on git-diff-tree is the
>>> right thing to do. Please check first bevore applying.
>>
>> I agree that this "use --root by default" belongs to Porcelain
>> layer, not the plumbing.  We would probably want to do this in
>> the same way as we do the color in diff.c::git_diff_ui_config().
>>
> Sorry, but I don't understand. The color handling doesn't look any different
> to me than the handling of the other config entrys. Did I miss something?

"git-diff-tree --color HEAD" (with explicit command line
instruction to color it) still colours its output, but "[diff]
color = auto" in ~/.gitconfig would not affect the coloring.
Hence, "git-diff-tree HEAD" with the configuration entry gives
monochrome.

"git diff HEAD" on the other hand looks at '[diff] color = auto"
and will color its output without being told on the command
line.