torq/utils.py

#
# Copyright (C) 2024 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 subprocess

def path_exists(path: str):
  if path is None:
    return False
  return os.path.exists(os.path.expanduser(path))

def dir_exists(path: str):
  if path is None:
    return False
  return os.path.isdir(os.path.expanduser(path))

def convert_simpleperf_to_gecko(scripts_path, host_raw_trace_filename,
    host_gecko_trace_filename, symbols):
  expanded_symbols = os.path.expanduser(symbols)
  expanded_scripts_path = os.path.expanduser(scripts_path)
  print("Building binary cache, please wait. If no samples were recorded,"
        " the trace will be empty.")
  subprocess.run(("%s/binary_cache_builder.py -i %s -lib %s"
                  % (expanded_scripts_path, host_raw_trace_filename,
                     expanded_symbols)),
                 shell=True)
  subprocess.run(("%s/gecko_profile_generator.py -i %s > %s"
                  % (expanded_scripts_path, host_raw_trace_filename,
                     host_gecko_trace_filename)),
                 shell=True)
  if not path_exists(host_gecko_trace_filename):
    raise Exception("Gecko file was not created.")