87 lines
2.8 KiB
Python
Executable File
87 lines
2.8 KiB
Python
Executable File
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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# Copyright (c) 2021 Huawei Device Co., Ltd.
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import sys
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import argparse
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import os
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import hashlib
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sys.path.append(os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__)))))
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import file_utils # noqa: E402
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from scripts.util import build_utils # noqa: E402
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__MAX_BUF = 1024 * 1024
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def _gen_signature(input_file):
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if not os.path.isfile(input_file):
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raise Exception()
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hash_value = ''
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sha256obj = hashlib.sha256()
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try:
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with open(input_file, 'rb') as file_obj:
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while True:
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buf = file_obj.read(__MAX_BUF)
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if not buf:
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break
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sha256obj.update(buf)
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hash_value = sha256obj.hexdigest()
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except OSError as err:
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sys.stdout.write("read file failed. {}".format(err))
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return hash_value
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def _write_signature_file(signature_file, hash_value):
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if os.path.exists(signature_file):
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os.remove(signature_file)
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file_utils.write_file(signature_file, hash_value)
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def _update_signature(signature_file, new_hash_value):
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if os.path.exists(signature_file):
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data = file_utils.read_file(signature_file)
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if data is None:
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raise Exception(
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"read signatrue file '{}' failed.".format(signature_file))
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old_value = data[0]
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if old_value is None or old_value == '':
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raise Exception(
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"signatrue file '{}' content error.".format(signature_file))
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if old_value == new_hash_value:
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return
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_write_signature_file(signature_file, new_hash_value)
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def main():
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parser = argparse.ArgumentParser()
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parser.add_argument('--input-dir', required=True)
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parser.add_argument('--output-zipfile', required=True)
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parser.add_argument('--signature-file', required=True)
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args = parser.parse_args()
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if os.path.exists(args.output_zipfile):
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os.remove(args.output_zipfile)
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build_utils.zip_dir(args.output_zipfile, args.input_dir)
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if not os.path.exists(args.output_zipfile):
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raise Exception("generate zipfile '{}' failed.".format(
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args.output_zipfile))
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hash_value = _gen_signature(args.output_zipfile)
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_update_signature(args.signature_file, hash_value)
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return 0
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if __name__ == '__main__':
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sys.exit(main())
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