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#!/usr/bin/env python
# Copyright 2019 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""This script merges code coverage profiles from multiple steps."""
import argparse
import logging
import sys
import merge_lib as merger
def _merge_steps_argument_parser(*args, **kwargs):
parser = argparse.ArgumentParser(*args, **kwargs)
parser.add_argument('--input-dir', required=True, help=argparse.SUPPRESS)
parser.add_argument('--output-file',
required=True,
help='where to store the merged data')
parser.add_argument('--llvm-profdata',
required=True,
help='path to llvm-profdata executable')
parser.add_argument(
'--profdata-filename-pattern',
default='.*',
help='regex pattern of profdata filename to merge for current test type. '
'If not present, all profdata files will be merged.')
parser.add_argument('--sparse',
action='store_true',
dest='sparse',
help='run llvm-profdata with the sparse flag.')
parser.add_argument(
'--profile-merge-timeout',
default=3600,
help='Timeout (sec) for the call to merge profiles. Defaults to 3600.')
parser.add_argument(
'--weight',
action='append',
default=[],
help='The weight to use for a particular benchmark. Format '
'is benchmark:weight. Matching of benchmark is done using ends with.')
return parser
def main():
desc = 'Merge profdata files in <--input-dir> into a single profdata.'
parser = _merge_steps_argument_parser(description=desc)
params = parser.parse_args()
weights = {}
for name_and_weight in params.weight:
parts = name_and_weight.split(':')
if len(parts) != 2:
logging.error('Invalid weight:\n%r', name_and_weight)
return 1
weights[parts[0]] = parts[1]
# counter overflow profiles should be logged as warnings as part of the
# merger.merge_profiles call.
invalid_profiles, _ = merger.merge_profiles(
params.input_dir,
params.output_file,
'.profdata',
params.llvm_profdata,
params.profdata_filename_pattern,
sparse=params.sparse,
merge_timeout=params.profile_merge_timeout,
weights=weights)
if invalid_profiles:
logging.error('Invalid profiles were generated:\n%r', invalid_profiles)
return 1
return 0
if __name__ == '__main__':
logging.basicConfig(format='[%(asctime)s %(levelname)s] %(message)s',
level=logging.INFO)
sys.exit(main())
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