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#!/usr/bin/env python3
#
# Copyright 2019 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Archive corpus file into zip and generate .d depfile.
Invoked by GN from fuzzer_test.gni.
"""
from __future__ import print_function
import argparse
import os
import sys
import warnings
import zipfile
SEED_CORPUS_LIMIT_MB = 100
def main():
parser = argparse.ArgumentParser(description="Generate fuzzer config.")
parser.add_argument('corpus_directories', metavar='corpus_dir', type=str,
nargs='+')
parser.add_argument('--output', metavar='output_archive_name.zip',
required=True)
args = parser.parse_args()
corpus_files = []
seed_corpus_path = args.output
for directory in args.corpus_directories:
if not os.path.exists(directory):
raise Exception('The given seed_corpus directory (%s) does not exist.' %
directory)
for (dirpath, _, filenames) in os.walk(directory):
for filename in filenames:
full_filename = os.path.join(dirpath, filename)
corpus_files.append(full_filename)
with zipfile.ZipFile(seed_corpus_path, 'w') as z:
# Turn warnings into errors to interrupt the build: crbug.com/653920.
with warnings.catch_warnings():
warnings.simplefilter("error")
for i, corpus_file in enumerate(corpus_files):
# To avoid duplication of filenames inside the archive, use numbers.
arcname = '%016d' % i
z.write(corpus_file, arcname)
if os.path.getsize(seed_corpus_path) > SEED_CORPUS_LIMIT_MB * 1024 * 1024:
print('Seed corpus %s exceeds maximum allowed size (%d MB).' %
(seed_corpus_path, SEED_CORPUS_LIMIT_MB))
sys.exit(-1)
if __name__ == '__main__':
main()
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