old_contents: #!/usr/bin/python
  # Copyright (c) 2009 The Chromium Authors. All rights reserved.
  # Use of this source code is governed by a BSD-style license that can be
  # found in the LICENSE file.
  
  # This script helps workaround IncrediBuild problem on Windows.
  # See http://crbug.com/17706.
  
  import os
  import sys
  
  _SRC_PATH = os.path.join(os.path.dirname(__file__), '..', '..')
  
  sys.path.append(os.path.join(_SRC_PATH, 'tools', 'grit'))
  import grit.exception
  import grit.grd_reader
  
  # We need to apply the workaround only on Windows.
  if os.name != 'nt':
    sys.exit(0)
  
  def total_split(path):
    components = []
    while path:
      head, tail = os.path.split(path)
      if not tail:
        break
      components.append(tail)
      path = head
    return list(reversed(components))
  
  for path in sys.argv[1:]:
    path = os.path.join('src', path)
    path_components = total_split(path)
    try:
      root = grit.grd_reader.Parse(path)
    except grit.exception.Base, exc:
      # This hook exploded badly a few times on the buildbot with exception
      # at this point. Do not exit with an error, just print more information
      # for debugging.
      # TODO(phajdan.jr): Make exception fatal when the root cause is fixed.
      print 'Unexpected GRIT exception while processing ' + path
      print exc
      continue
    output_files = [node.GetOutputFilename() for node in root.GetOutputFiles()]
    output_headers = [file for file in output_files if file.endswith('.h')]
    for build_type in ('Debug', 'Release'):
      build_path = os.path.join(_SRC_PATH, 'chrome', build_type)
  
      # We guess target file output based on path of the grd file (the first
      # path component after 'src').
      intermediate_path = os.path.join(build_path, 'obj',
                                       'global_intermediate', path_components[1])
  
      for header in output_headers:
        full_path = os.path.join(intermediate_path, header)
        try:
          os.remove(full_path)
          print 'Clobbered ' + full_path
        except OSError:
          print 'Could not remove ' + full_path + '. Continuing.'
  
new_contents: #!/usr/bin/python
  # Copyright (c) 2009 The Chromium Authors. All rights reserved.
  # Use of this source code is governed by a BSD-style license that can be
  # found in the LICENSE file.
  
  # This script helps workaround IncrediBuild problem on Windows.
  # See http://crbug.com/17706.
  
  import os
  import sys
  
  _SRC_PATH = os.path.join(os.path.dirname(__file__), '..', '..')
  
  sys.path.append(os.path.join(_SRC_PATH, 'tools', 'grit'))
  import grit.exception
  import grit.grd_reader
  
  # We need to apply the workaround only on Windows.
  if os.name != 'nt':
    sys.exit(0)
  
  def total_split(path):
    components = []
    while path:
      head, tail = os.path.split(path)
      if not tail:
        break
      components.append(tail)
      path = head
    return list(reversed(components))
  
  for path in sys.argv[1:]:
    path_components = total_split(path)
    try:
      root = grit.grd_reader.Parse(path)
    except grit.exception.Base, exc:
      # This hook exploded badly a few times on the buildbot with exception
      # at this point. Do not exit with an error, just print more information
      # for debugging.
      # TODO(phajdan.jr): Make exception fatal when the root cause is fixed.
      print 'Unexpected GRIT exception while processing ' + path
      print exc
      continue
    output_files = [node.GetOutputFilename() for node in root.GetOutputFiles()]
    output_headers = [file for file in output_files if file.endswith('.h')]
    for build_type in ('Debug', 'Release'):
      build_path = os.path.join(_SRC_PATH, 'chrome', build_type)
  
      # We guess target file output based on path of the grd file (the first
      # path component after 'src').
      intermediate_path = os.path.join(build_path, 'obj',
                                       'global_intermediate', path_components[1])
  
      for header in output_headers:
        full_path = os.path.join(intermediate_path, header)
        try:
          os.remove(full_path)
          print 'Clobbered ' + full_path
        except OSError:
          print 'Could not remove ' + full_path + '. Continuing.'
  
subject: Fix the expected path logic in clobber_generated_headers.py