tools/update-statsd-descriptor

#!/usr/bin/env python3
# Copyright (C) 2022 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import os
import sys
import subprocess
import pathlib
import tempfile

ROOT_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
TOOLS_DIR = os.path.join(ROOT_DIR, "tools")
OUT_DIR = os.path.join(ROOT_DIR, "out", "tools")
NINJA = os.path.join(TOOLS_DIR, "ninja")
GN = os.path.join(TOOLS_DIR, "gn")
PROTOC_PATH = os.path.join(OUT_DIR, "protoc")
DESCRIPTOR_PATH = os.path.join(ROOT_DIR,
    "src", "trace_processor", "importers", "proto", "atoms.descriptor")
PROTOBUF_BUILTINS_DIR = os.path.join(
    ROOT_DIR, "buildtools", "protobuf", "src")
PROTO_LOGGING_URL = "https://android.googlesource.com/platform/frameworks/proto_logging.git"


def call(*cmd):
  try:
    return subprocess.check_call(cmd)
  except subprocess.CalledProcessError:
    print("Error running the command:")
    print(" ".join(cmd))
    exit(1)


def main():
  call(GN, "gen", OUT_DIR, "--args=is_debug=false")
  call(NINJA, "-C", OUT_DIR, "protoc")

  with tempfile.TemporaryDirectory() as tmpdir:
    statsd_checkout_path = os.path.join(
        tmpdir, "frameworks", "proto_logging")
    pathlib.Path(statsd_checkout_path).mkdir(
        parents=True, exist_ok=True)
    call("git", "clone", PROTO_LOGGING_URL, statsd_checkout_path)
    atoms_path = os.path.join(
        statsd_checkout_path, "stats", "atoms.proto")
    call(
        PROTOC_PATH,
        f"--proto_path={PROTOBUF_BUILTINS_DIR}",
        f"--proto_path={tmpdir}",
        f"--descriptor_set_out={DESCRIPTOR_PATH}",
        "--include_imports",
        atoms_path)


if __name__ == "__main__":
  sys.exit(main())