Merge "releasetools: Set the search path based on the current executable."

class Options(object):

  def __init__(self):

    base_out_path = os.getenv('OUT_DIR_COMMON_BASE')

    if base_out_path is None:

      base_search_path = "out"

    else:

      base_search_path = os.path.join(base_out_path,

                                      os.path.basename(os.getcwd()))

    # Python >= 3.3 returns 'linux', whereas Python 2.7 gives 'linux2'.

    platform_search_path = {

        "linux": os.path.join(base_search_path, "host/linux-x86"),

        "linux2": os.path.join(base_search_path, "host/linux-x86"),

        "darwin": os.path.join(base_search_path, "host/darwin-x86"),

    }

    # Set up search path, in order to find framework/ and lib64/. At the time of

    # running this function, user-supplied search path (`--path`) hasn't been

    # available. So the value set here is the default, which might be overridden

    # by commandline flag later.

    exec_path = sys.argv[0]

    if exec_path.endswith('.py'):

      script_name = os.path.basename(exec_path)

      # logger hasn't been initialized yet at this point. Use print to output

      # warnings.

      print(

          'Warning: releasetools script should be invoked as hermetic Python '

          'executable -- build and run `{}` directly.'.format(script_name[:-3]),

          file=sys.stderr)

    self.search_path = os.path.realpath(os.path.join(exec_path, '..'))

    self.search_path = platform_search_path.get(sys.platform)

    self.signapk_path = "framework/signapk.jar"  # Relative to search_path

    self.signapk_shared_library_path = "lib64"   # Relative to search_path

    self.extra_signapk_args = []