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1#!/usr/bin/env python
2# Copyright 2013 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"""
7This file emits the list of reasons why a particular build needs to be clobbered
8(or a list of 'landmines').
9"""
10
11import optparse
12import sys
13
14import landmine_utils
15
16
17builder = landmine_utils.builder
18distributor = landmine_utils.distributor
19gyp_defines = landmine_utils.gyp_defines
20gyp_msvs_version = landmine_utils.gyp_msvs_version
21platform = landmine_utils.platform
22
23
24def print_landmines(target):
25  """
26  ALL LANDMINES ARE EMITTED FROM HERE.
27  target can be one of {'Release', 'Debug', 'Debug_x64', 'Release_x64'}.
28  """
29  if (distributor() == 'goma' and platform() == 'win32' and
30      builder() == 'ninja'):
31    print 'Need to clobber winja goma due to backend cwd cache fix.'
32  if platform() == 'android':
33    print 'Clobber: build_size.jar needs to be deleted (issue 258633003)'
34  if platform() == 'win' and builder() == 'ninja':
35    print 'Compile on cc_unittests fails due to symbols removed in r185063.'
36  if platform() == 'linux' and builder() == 'ninja':
37    print 'Builders switching from make to ninja will clobber on this.'
38  if platform() == 'mac':
39    print 'Switching from bundle to unbundled dylib (issue 14743002).'
40  if platform() in ('win', 'mac'):
41    print ('Improper dependency for create_nmf.py broke in r240802, '
42           'fixed in r240860.')
43  if (platform() == 'win' and builder() == 'ninja' and
44      gyp_msvs_version() == '2012' and
45      gyp_defines().get('target_arch') == 'x64' and
46      gyp_defines().get('dcheck_always_on') == '1'):
47    print "Switched win x64 trybots from VS2010 to VS2012."
48  if (platform() == 'win' and builder() == 'ninja' and
49      gyp_msvs_version().startswith('2013')):
50    print "Switched win from VS2010 to VS2013."
51    print "Update to VS2013 Update 2."
52  print 'Need to clobber everything due to an IDL change in r154579 (blink)'
53  print 'Need to clobber everything due to gen file moves in r175513 (Blink)'
54  if (platform() != 'ios'):
55    print 'Clobber to get rid of obselete test plugin after r248358'
56    print 'Clobber to rebuild GN files for V8'
57
58
59def main():
60  parser = optparse.OptionParser()
61  parser.add_option('-t', '--target',
62                    help=='Target for which the landmines have to be emitted')
63
64  options, args = parser.parse_args()
65
66  if args:
67    parser.error('Unknown arguments %s' % args)
68
69  print_landmines(options.target)
70  return 0
71
72
73if __name__ == '__main__':
74  sys.exit(main())
75