1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
base / write_build_date_header.py [blame]
#!/usr/bin/env python3
# Copyright 2016 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Takes a timestamp and writes it in as readable text to a .h file."""
import argparse
import datetime
import os
import sys
def main():
argument_parser = argparse.ArgumentParser()
argument_parser.add_argument('output_file', help='The file to write to')
argument_parser.add_argument('timestamp')
args = argument_parser.parse_args()
date_val = int(args.timestamp)
date = datetime.datetime.fromtimestamp(date_val, tz=datetime.timezone.utc)
output = ('// Generated by //base/write_build_date_header.py\n'
'#ifndef BASE_GENERATED_BUILD_DATE_TIMESTAMP \n'
f'#define BASE_GENERATED_BUILD_DATE_TIMESTAMP {date_val}'
f' // {date:%b %d %Y %H:%M:%S}\n'
'#endif // BASE_GENERATED_BUILD_DATE_TIMESTAMP \n')
current_contents = ''
if os.path.isfile(args.output_file):
with open(args.output_file, 'r') as current_file:
current_contents = current_file.read()
if current_contents != output:
with open(args.output_file, 'w') as output_file:
output_file.write(output)
return 0
if __name__ == '__main__':
sys.exit(main())