Re: [PATCH] Built-in diff driver shows Index: line.

From: Linus Torvalds <torvalds@osdl.org>
Date: Apr 28, 2005, 22:30 UTC
Message-ID: <Pine.LNX.4.58.0504281522560.18901@ppc970.osdl.org>
In-Reply-To: <7vacni5z9y.fsf@assigned-by-dhcp.cox.net>

On Thu, 28 Apr 2005, Junio C Hamano wrote:

> 
> So I'd say we'd punt this one for now, unless somebody else has
> a better idea.

It's trivially easy to do it with a external diff helper.

So you can do it with a few lines of GIT_EXTERNAL_DIFF, and the hardest part is showing it in a nice format (ie do the normalization of the results that diffstat does).

The external diff program can _literally_ just do something like

	#!/bin/sh
	name="$1"
	src="$2"
	dst="$5"
	diff "$src" "$dst" | cut -c1 | grep '[<>]' | sort | uniq -c

and the output should be something like

    458 <
    104 >

which means "458 lines removed, 104 lines added". Pretty-print it some, and you're done.

Hacky hacky,

		Linus