#!/bin/bash

set -e

if [ x"$(git branch --show)" != x"cascade" ];then
  echo "this cannot be run on any branches other than cascade"
  exit 1
fi

git fetch upstream
git checkout -b cascade-"$1"
git rebase "$1" || (git checkout cascade && git branch -D cascade-"$1";exit 1)
git push -u origin cascade-"$1"
git checkout cascade