blob: 3ffa2b0d6c36bb93cb6964edab774895321454aa [file] [log] [blame]
#!/usr/bin/env python
# Copyright (C) 2019 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.
# This file should do the same thing when being invoked in any of these ways:
# ./traceconv
# python traceconv
# bash traceconv
# cat ./traceconv | bash
# cat ./traceconv | python -
BASH_FALLBACK=""" "
exec python - "$@" <<'#'EOF
#"""
import hashlib
import os
import sys
import tempfile
import urllib
TRACE_TO_TEXT_SHAS = {
'linux': '70d456c4b6c01db5b06a04bc8d2275cee561516a',
'mac': 'd01e5e8ce392aa02026a7a9812839e5a7d279b0b',
}
TRACE_TO_TEXT_PATH = tempfile.gettempdir()
TRACE_TO_TEXT_BASE_URL = (
'https://storage.googleapis.com/perfetto/')
def check_hash(file_name, sha_value):
with open(file_name, 'rb') as fd:
file_hash = hashlib.sha1(fd.read()).hexdigest()
return file_hash == sha_value
def load_trace_to_text(platform):
sha_value = TRACE_TO_TEXT_SHAS[platform]
file_name = 'trace_to_text-' + platform + '-' + sha_value
local_file = os.path.join(TRACE_TO_TEXT_PATH, file_name)
if os.path.exists(local_file):
if not check_hash(local_file, sha_value):
os.remove(local_file)
else:
return local_file
url = TRACE_TO_TEXT_BASE_URL + file_name
urllib.urlretrieve(url, local_file)
if not check_hash(local_file, sha_value):
os.remove(local_file)
raise ValueError("Invalid signature.")
os.chmod(local_file, 0o755)
return local_file
def main(argv):
platform = None
if sys.platform.startswith('linux'):
platform = 'linux'
elif sys.platform.startswith('darwin'):
platform = 'mac'
else:
print("Invalid platform: {}".format(sys.platform))
return 1
trace_to_text_binary = load_trace_to_text(platform)
os.execv(trace_to_text_binary, [trace_to_text_binary] + argv[1:])
if __name__ == '__main__':
sys.exit(main(sys.argv))
#EOF