[PATCH] Make rebase save ORIG_HEAD if using current branch

[Brian Gernhardt <benji@silverinsanity.com>]

This makes rebase act a little more like merge when working on the
current branch.  This is particularly useful for `git pull --rebase`

Signed-off-by: Brian Gernhardt <benji@silverinsanity.com>
---

 I was trying to figure out why reviewing the new changes in git was so
 hard using my `git log ORIG_HEAD..` alias.  Turns out my ORIG_HEAD
 hadn't been updated since Feburary, which is when I set
 branch.master.rebase to true.

 I think ORIG_HEAD should be set every time a pull changes HEAD, whether
 by a merge or rebase.  Making rebase act like merge seemed more elegant
 than having git-pull set ORIG_HEAD iff using rebase.

 git-rebase.sh |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/git-rebase.sh b/git-rebase.sh
index 9b13b83..8d54d9f 100755
--- a/git-rebase.sh
+++ b/git-rebase.sh
@@ -342,6 +342,7 @@ case "$#" in
 		branch_name=HEAD ;# detached
 	fi
 	branch=$(git rev-parse --verify "${branch_name}^0") || exit
+	echo "$branch" > "$GIT_DIR/ORIG_HEAD"
 	;;
 esac
 orig_head=$branch
-- 
1.5.5.1.242.g558e8