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b0b4323e PB |
1 | #! /usr/bin/env python3 |
2 | ||
3 | # Usage: scripts/qemu-stamp.py STRING1 STRING2... -- FILE1 FILE2... | |
4 | import hashlib | |
5 | import os | |
6 | import sys | |
7 | ||
8 | sha = hashlib.sha1() | |
9 | is_file = False | |
10 | for arg in sys.argv[1:]: | |
11 | if arg == '--': | |
12 | is_file = True | |
13 | continue | |
14 | if is_file: | |
15 | with open(arg, 'rb') as f: | |
16 | for chunk in iter(lambda: f.read(65536), b''): | |
17 | sha.update(chunk) | |
18 | else: | |
19 | sha.update(os.fsencode(arg)) | |
20 | sha.update(b'\n') | |
21 | ||
22 | # The hash can start with a digit, which the compiler doesn't | |
23 | # like as an symbol. So prefix it with an underscore | |
24 | print("_" + sha.hexdigest()) |