Restack a number of branches

git-restack

#!/bin/bash

set -e

prev=$1
shift
for b
do
	if ! git checkout $b >/dev/null 2>&1 
	then
		echo "Failed to check out branch $v" >&2
		exit 1
	fi
	echo "Rebasing $b onto $prev" >&2
	if ! git rebase HEAD^ --onto $prev >/dev/null 2>&1
	then
		echo "Command \"git rebase HEAD^ --onto $prev\" failed"  >&2
		exit 1
	fi
	prev=$b
done