On Tue, Feb 12, 2008 at 11:44:07PM -0200, André Goddard Rosa wrote:
quoted text
>     I would like to use kdiff3 to compare some folder like "include"
> between two different revisions.
>     It would be something like "git diff v2.5:makefile HEAD:makefile",
> but for an entire folder.
> 
>     Kdiff3 give me a quick glance of its nice graphical output of the
> differences, without have to resort to looking/parsing 'git log'
> output.
>     For now, easiest way for me is to keep my tree replicated in two
> different folders pointing to different revisions then use it.
> 
>     Is there a better way to do this kind of comparison?

Maybe you want something like this?  This uses kdiff3 to compare two
full commits, by extracting the changed files into a temporary location.
Modifying it so it can work with path limiters and/or take arguments
exactly like 'git diff' is left as an excercise for the reader.

-bcd

#!/bin/sh -e

# usage: git-kdiff3 commit1 commit2

SUBDIRECTORY_OK=1
. git-sh-setup
cd_to_toplevel

O=".git-kdiff3-tmp-$$"
list="$O/list"
trap "rm -rf $O" 0
mkdir $O

git diff --name-only -z $1 $2 > $list

cat $list | xargs -0 git archive --prefix=a/ $1 | tar xf - -C $O
cat $list | xargs -0 git archive --prefix=b/ $2 | tar xf - -C $O

kdiff3 $O/a $O/b
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