third_party/ipcz/src/PRESUBMIT.py

# Copyright 2025 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Presubmit script for ipcz generated & checked-in files.

See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts
for more details about the presubmit API built into depot_tools.
"""

from filecmp import dircmp
import os.path
import subprocess
import tempfile

PRESUBMIT_VERSION = '2.0.0'


def CheckIpczMessageFilesUpToDate(input_api, output_api):
    """
  Validates that the following generated but checked-in files are up to date:

  ipcz/node_messages.h
  ipcz/node_messages.cc
  ipcz/test_messages.h
  ipcz/test_messages.cc

  These files are generated by running:

  python3 third_party/ipcz/src/ipcz/node_messages.py --dir third_party/ipcz/src/ipcz

  Files are generated from the following templates:

  ipcz/node_messages.h.tmpl
  ipcz/node_messages.cc.tmpl

  Data used to populate the templates is contained in:

  ipcz/node_messages_generator.h
  ipcz/test_messages_generator.h
  """
    generate_script = os.path.join(input_api.PresubmitLocalPath(),
                                   'ipcz/node_messages.py')
    messages_dir = os.path.join(input_api.PresubmitLocalPath(), 'ipcz')
    subprocess.run(
        ['python3', generate_script, '--dir', messages_dir, '--check'],
        check=True)
    return []