def clean_up()

in merge_livy_pr.py [0:0]


def clean_up():
    print("Restoring head pointer to %s" % original_head)
    run_cmd("git checkout %s" % original_head)

    branches = run_cmd("git branch").replace(" ", "").split("\n")

    for branch in filter(lambda x: x.startswith(BRANCH_PREFIX), branches):
        print("Deleting local branch %s" % branch)
        run_cmd("git branch -D %s" % branch)