提交 #1

build/scripts/util/zip_and_md5.py

@@ -0,0 +1,86 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+# Copyright (c) 2021 Huawei Device Co., Ltd.
+# 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 sys
+import argparse
+import os
+import hashlib
+sys.path.append(os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__)))))
+import file_utils  # noqa: E402
+from scripts.util import build_utils  # noqa: E402
+
+__MAX_BUF = 1024 * 1024
+
+
+def _gen_signature(input_file):
+    if not os.path.isfile(input_file):
+        raise Exception()
+    hash_value = ''
+    sha256obj = hashlib.sha256()
+    try:
+        with open(input_file, 'rb') as file_obj:
+            while True:
+                buf = file_obj.read(__MAX_BUF)
+                if not buf:
+                    break
+                sha256obj.update(buf)
+            hash_value = sha256obj.hexdigest()
+    except OSError as err:
+        sys.stdout.write("read file failed. {}".format(err))
+    return hash_value
+
+
+def _write_signature_file(signature_file, hash_value):
+    if os.path.exists(signature_file):
+        os.remove(signature_file)
+    file_utils.write_file(signature_file, hash_value)
+
+
+def _update_signature(signature_file, new_hash_value):
+    if os.path.exists(signature_file):
+        data = file_utils.read_file(signature_file)
+        if data is None:
+            raise Exception(
+                "read signatrue file '{}' failed.".format(signature_file))
+        old_value = data[0]
+        if old_value is None or old_value == '':
+            raise Exception(
+                "signatrue file '{}' content error.".format(signature_file))
+        if old_value == new_hash_value:
+            return
+    _write_signature_file(signature_file, new_hash_value)
+
+
+def main():
+    parser = argparse.ArgumentParser()
+    parser.add_argument('--input-dir', required=True)
+    parser.add_argument('--output-zipfile', required=True)
+    parser.add_argument('--signature-file', required=True)
+    args = parser.parse_args()
+
+    if os.path.exists(args.output_zipfile):
+        os.remove(args.output_zipfile)
+    build_utils.zip_dir(args.output_zipfile, args.input_dir)
+    if not os.path.exists(args.output_zipfile):
+        raise Exception("generate zipfile '{}' failed.".format(
+            args.output_zipfile))
+
+    hash_value = _gen_signature(args.output_zipfile)
+    _update_signature(args.signature_file, hash_value)
+    return 0
+
+
+if __name__ == '__main__':
+    sys.exit(main())