Add git-cherry-move

Like cherry-pick, but to move instead of copy.

git/git-cherry-move

@@ -0,0 +1,47 @@
+#!/bin/sh
+#
+# git-cherry-move, Copyright © 2011 Matteo Cypriani
+#
+# This program is free software. It comes without any warranty, to
+# the extent permitted by applicable law. You can redistribute it
+# and/or modify it under the terms of the Do What The Fuck You Want
+# To Public License, Version 2, as published by Sam Hocevar. See
+# http://sam.zoy.org/wtfpl/COPYING for more details.
+#
+# This script moves a commit from a branch head to another. It is
+# the equivalent of git cherry-pick followed by git reset.
+
+
+set -e
+
+assert_branch_exists()
+{
+	RET=$(git branch | sed --quiet "s/^\*\? \+${1}$/${1}/p")
+	if [ "$RET" != $1 ] ; then
+		echo "The branch $1 does not exist!"
+		exit 2
+	fi
+}
+
+if [ $# -lt 2 ] ; then
+	echo "Usage:"
+	echo "  $0 <src-branch> <dst-branch> [ reset-arg ]"
+	echo -n "'reset-arg' is passed to the final reset"
+	echo    " (can be --hard for example)."
+	exit 1
+fi
+
+
+assert_branch_exists "$1"
+SRC="$1"
+shift
+
+assert_branch_exists "$1"
+DST="$1"
+shift
+
+
+git checkout "$DST"
+git cherry-pick "$SRC"
+git checkout "$SRC"
+git reset $1 HEAD^