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1#!/usr/bin/env python
2# Copyright (c) 2016 The Chromium Authors. All rights reserved.
3# Use of this source code is governed by a BSD-style license that can be
4# found in the LICENSE file.
5
6"""This script takes a Clang revision as an argument, it then
7creates a feature branch, puts this revision into update.py, uploads
8a CL, triggers Clang Upload try bots, and tells what to do next"""
9
10import argparse
11import fnmatch
12import itertools
13import os
14import re
15import shutil
16import subprocess
17import sys
18
19# Path constants.
20THIS_DIR = os.path.dirname(__file__)
21UPDATE_PY_PATH = os.path.join(THIS_DIR, "update.py")
22CHROMIUM_DIR = os.path.abspath(os.path.join(THIS_DIR, '..', '..', '..'))
23
24is_win = sys.platform.startswith('win32')
25
26def PatchRevision(clang_revision, clang_sub_revision):
27  with open(UPDATE_PY_PATH, 'rb') as f:
28    content = f.read()
29  m = re.search("CLANG_REVISION = '([0-9]+)'", content)
30  clang_old_revision = m.group(1)
31  content = re.sub("CLANG_REVISION = '[0-9]+'",
32                   "CLANG_REVISION = '{}'".format(clang_revision),
33                   content, count=1)
34  content = re.sub("CLANG_SUB_REVISION=[0-9]+",
35                   "CLANG_SUB_REVISION={}".format(clang_sub_revision),
36                   content, count=1)
37  with open(UPDATE_PY_PATH, 'wb') as f:
38    f.write(content)
39  return clang_old_revision
40
41
42def Git(args):
43  # Needs shell=True on Windows due to git.bat in depot_tools.
44  subprocess.check_call(["git"] + args, shell=is_win)
45
46def main():
47  parser = argparse.ArgumentParser(description='upload new clang revision')
48  parser.add_argument('clang_revision', metavar='CLANG_REVISION',
49                      type=int, nargs=1,
50                      help='Clang revision to build the toolchain for.')
51  parser.add_argument('clang_sub_revision', metavar='CLANG_SUB_REVISION',
52                      type=int, nargs='?', default=1,
53                      help='Clang sub-revision to build the toolchain for.')
54
55  args = parser.parse_args()
56
57  clang_revision = args.clang_revision[0]
58  clang_sub_revision = args.clang_sub_revision
59  # Needs shell=True on Windows due to git.bat in depot_tools.
60  git_revision = subprocess.check_output(
61      ["git", "rev-parse", "origin/master"], shell=is_win).strip()
62  print "Making a patch for Clang revision r{}-{}".format(
63      clang_revision, clang_sub_revision)
64  print "Chrome revision: {}".format(git_revision)
65  clang_old_revision = PatchRevision(clang_revision, clang_sub_revision)
66
67  Git(["checkout", "-b", "clang-{}-{}".format(
68      clang_revision, clang_sub_revision)])
69  Git(["add", UPDATE_PY_PATH])
70
71  commit_message = 'Ran `{}`.'.format(' '.join(sys.argv))
72  Git(["commit", "-m", "Roll clang {}:{}.\n\n{}".format(
73      clang_old_revision, clang_revision, commit_message)])
74
75  Git(["cl", "upload", "-f"])
76  Git(["cl", "try", "-b", "linux_upload_clang", "-r", git_revision])
77  Git(["cl", "try", "-b", "mac_upload_clang", "-r", git_revision])
78  Git(["cl", "try", "-b", "win_upload_clang", "-r", git_revision])
79
80  print ("Please, wait until the try bots succeeded "
81         "and then push the binaries to goma.")
82
83if __name__ == '__main__':
84  sys.exit(main())
85