import os

def write_if_changed(path, content):
  try:
    with open(path, "r", encoding="utf-8") as f:
      if f.read() == content:
        return
  except FileNotFoundError:
    pass

  os.makedirs(os.path.dirname(path), exist_ok=True)
  with open(path, "w", encoding="utf-8") as f:
    f.write(content)