File: scripthash.py

package info (click to toggle)
chromium 139.0.7258.127-1
  • links: PTS, VCS
  • area: main
  • in suites:
  • size: 6,122,068 kB
  • sloc: cpp: 35,100,771; ansic: 7,163,530; javascript: 4,103,002; python: 1,436,920; asm: 946,517; xml: 746,709; pascal: 187,653; perl: 88,691; sh: 88,436; objc: 79,953; sql: 51,488; cs: 44,583; fortran: 24,137; makefile: 22,147; tcl: 15,277; php: 13,980; yacc: 8,984; ruby: 7,485; awk: 3,720; lisp: 3,096; lex: 1,327; ada: 727; jsp: 228; sed: 36
file content (37 lines) | stat: -rw-r--r-- 1,199 bytes parent folder | download | duplicates (9) 
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
 
# Copyright 2024 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

import hashlib
import logging
import os
import pathlib
import sys

_SRC_ROOT = pathlib.Path(__file__).resolve().parents[2]


def _find_deps():
    module_paths = (os.path.abspath(m.__file__) for m in sys.modules.values()
                    if m and getattr(m, '__file__', None))
    ret = set()
    for path in module_paths:
        if path.startswith(str(_SRC_ROOT)):
            if (path.endswith('.pyc')
                    or (path.endswith('c') and not os.path.splitext(path)[1])):
                path = path[:-1]
            ret.add(path)
    return list(ret)


def compute(extra_paths=None):
    """Compute a hash of loaded Python modules and given |extra_paths|."""
    all_paths = _find_deps() + (extra_paths or [])
    all_paths = [os.path.relpath(p, _SRC_ROOT) for p in all_paths]
    all_paths.sort()
    md5 = hashlib.md5()
    for path in all_paths:
        md5.update((_SRC_ROOT / path).read_bytes())
        md5.update(path.encode('utf-8'))
    logging.info('Script hash from: \n%s\n', '\n'.join(all_paths))
    return md5.hexdigest()[:10]