xref: /aosp_15_r20/external/skia/bin/fetch-clang-format (revision c8dee2aa9b3f27cf6c858bd81872bdeb2c07ed17) 
1#!/usr/bin/env python3
2
3# Copyright 2017 Google Inc.
4#
5# Use of this source code is governed by a BSD-style license that can be
6# found in the LICENSE file.
7
8import hashlib
9import os
10import shutil
11import stat
12import sys
13import platform
14
15if sys.version_info[0] < 3:
16  from urllib2 import urlopen
17else:
18  from urllib.request import urlopen
19
20os.chdir(os.path.join(os.path.dirname(__file__), os.pardir))
21
22def fetch(target):
23  deps_path = 'buildtools/DEPS'
24  try:
25    with open(deps_path, 'r') as contents:
26      deps_globals = {}
27      exec(contents.read(), deps_globals)
28      deps = deps_globals['deps']
29  except:
30    print(deps_path, 'could not be read/parsed. Did you run `tools/git-sync-deps`?')
31    exit(1)
32
33  if 'arm' in platform.processor():
34      if 'darwin' in sys.platform:
35        obj = 'mac_arm64-format'
36        target_path = 'buildtools/mac_arm64/'
37      else:
38        print('unsupported platform')
39        exit(1)
40  else:
41      if 'linux' in sys.platform:
42        obj = 'linux64-format'
43        target_path = 'buildtools/linux64/'
44      elif 'darwin' in sys.platform:
45        obj = 'mac-format'
46        target_path = 'buildtools/mac/clang-format'
47      else:
48        obj = 'win-format'
49        target_path = 'buildtools\\win\\'
50
51  sha256sum = deps[obj]['objects'][0]['sha256sum']
52  object_name = deps[obj]['objects'][0]['object_name']
53  output_file = os.path.join('bin', deps[obj]['objects'][0]['output_file'])
54  target_path = os.path.join(target_path, deps[obj]['objects'][0]['output_file'])
55
56  def sha256_of_file(path):
57    h = hashlib.sha256()
58    if os.path.isfile(path):
59      with open(path, 'rb') as f:
60        h.update(f.read())
61    return h.hexdigest()
62
63  if sha256_of_file(output_file) != sha256sum:
64    with open(output_file, 'wb') as f:
65      url = 'https://chromium-%s.storage-download.googleapis.com/%s' % (target, object_name)
66      f.write(urlopen(url).read())
67
68    os.chmod(output_file, stat.S_IRUSR | stat.S_IWUSR | stat.S_IXUSR |
69                          stat.S_IRGRP                | stat.S_IXGRP |
70                          stat.S_IROTH                | stat.S_IXOTH )
71    if sha256_of_file(output_file) != sha256sum:
72      print(output_file, 'was corrupted during download. Please try again.')
73      exit(1)
74
75  if sha256_of_file(target_path) != sha256sum:
76    shutil.copy(output_file, target_path)
77
78fetch('clang-format')
79