#!/usr/bin/env python3
import subprocess
import sys

out = subprocess.check_output(["git", "status", "-zs"])
for line in out.split(b"\0"):
    line = line.decode("UTF-8")
    if len(line) >= 2 and line[1] == "M":
        pathname = line[3:]
        print(pathname)
        # XXX stages files...
        subprocess.run(["git", "update-index", "--refresh", pathname])