text: #!/usr/bin/env python
  # Copyright (c) 2011 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.
  """Small utility function to find depot_tools and add it to the python path.
  
  Will throw an ImportError exception if depot_tools can't be found since it
  imports breakpad.
  
  This can also be used as a standalone script to print out the depot_tools
  directory location.
  """
  
  import os
  import sys
  
  
  def IsRealDepotTools(path):
    return os.path.isfile(os.path.join(path, 'gclient.py'))
  
  
  def add_depot_tools_to_path():
    """Search for depot_tools and add it to sys.path."""
    # First search for depot_tools_lite for gn standalone build
    script_dir = os.path.dirname(os.path.realpath(__file__))
    gn_standalone_root = os.path.dirname(os.path.dirname(script_dir))
    depot_tools_lite_dir = os.path.join(gn_standalone_root, 'tools')
    if IsRealDepotTools(depot_tools_lite_dir):
      return depot_tools_lite_dir
  
    # First look if depot_tools is already in PYTHONPATH.
    for i in sys.path:
      if i.rstrip(os.sep).endswith('depot_tools') and IsRealDepotTools(i):
        return i
    # Then look if depot_tools is in PATH, common case.
    for i in os.environ['PATH'].split(os.pathsep):
      if IsRealDepotTools(i):
        sys.path.append(i.rstrip(os.sep))
        return i
    # Rare case, it's not even in PATH, look upward up to root.
    root_dir = os.path.dirname(os.path.abspath(__file__))
    previous_dir = os.path.abspath(__file__)
    while root_dir and root_dir != previous_dir:
      i = os.path.join(root_dir, 'depot_tools')
      if IsRealDepotTools(i):
        sys.path.append(i)
        return i
      previous_dir = root_dir
      root_dir = os.path.dirname(root_dir)
    print >> sys.stderr, 'Failed to find depot_tools'
    return None
  
  DEPOT_TOOLS_PATH = add_depot_tools_to_path()
  
  # pylint: disable=W0611
  if os.environ.get('DEPOT_TOOLS_WIN_TOOLCHAIN') != '2':
    import breakpad
  
  
  def main():
    if DEPOT_TOOLS_PATH is None:
      return 1
    print DEPOT_TOOLS_PATH
    return 0
  
  
  if __name__ == '__main__':
    sys.exit(main())
  