old_contents: #!/usr/bin/python
  
  import sys
  import os
  import os.path
  import invoke
  import stdio
  
  CBR_WRAPPER = "scripts/util/cbr_wrapper.sh"
  
  def FindRoot(start):
      search_offsets = ['.', '..', '../..', '../../..']
      # Search directories: locals preferred first
      search_dirs = [os.getcwd()]
      # Otherwise search system dirs
      search_dirs.extend(sys.path)
      for sdir in search_dirs:
          for soffset in search_offsets:
              test_file = os.path.join(sdir, soffset, 'install-deps.sh')
              if (os.path.isfile(test_file)):
                  return os.path.join(sdir, soffset)
      return None
  
  def RunCBR(args, io=None, **kwargs):
      # Get the *scripts* directory, then just run the wrapper
      root_dir = FindRoot( os.getcwd() )
      if root_dir == None:
          print "RunCBR: Couldn't find root directory from current directory."
          return
  
      cmd = [os.path.join(root_dir, CBR_WRAPPER)]
      cmd.extend(args)
  
      # Setup our IO, using default IO but overriding with parameters
      if io == None:
          io = stdio.StdIO()
      our_io = stdio.StdIO(io.stdin, io.stdout, io.stderr)
      if ('stdin' in kwargs):
          our_io.stdin = kwargs['stdin']
          del kwargs['stdin']
      if ('stdout' in kwargs):
          our_io.stdout = kwargs['stdout']
          del kwargs['stdout']
      if ('stderr' in kwargs):
          our_io.stderr = kwargs['stderr']
          del kwargs['stderr']
  
      invoke.invoke(cmd, io=our_io, **kwargs)
  
  if __name__ == "__main__":
      RunCBR(sys.argv)
  
new_contents: #!/usr/bin/python
  
  import sys
  import os
  import os.path
  import invoke
  import stdio
  
  CBR_WRAPPER = "scripts/util/cbr_wrapper.sh"
  
  def FindRoot(start):
      search_offsets = ['.', '..', '../..', '../../..']
      # Search directories: locals preferred first
      search_dirs = [os.getcwd()]
      # Otherwise search system dirs
      search_dirs.extend(sys.path)
      for sdir in search_dirs:
          for soffset in search_offsets:
              test_file = os.path.join(sdir, soffset, 'LICENSE')
              if (os.path.isfile(test_file)):
                  return os.path.join(sdir, soffset)
      return None
  
  def RunCBR(args, io=None, **kwargs):
      # Get the *scripts* directory, then just run the wrapper
      root_dir = FindRoot( os.getcwd() )
      if root_dir == None:
          print "RunCBR: Couldn't find root directory from current directory."
          return
  
      cmd = [os.path.join(root_dir, CBR_WRAPPER)]
      cmd.extend(args)
  
      # Setup our IO, using default IO but overriding with parameters
      if io == None:
          io = stdio.StdIO()
      our_io = stdio.StdIO(io.stdin, io.stdout, io.stderr)
      if ('stdin' in kwargs):
          our_io.stdin = kwargs['stdin']
          del kwargs['stdin']
      if ('stdout' in kwargs):
          our_io.stdout = kwargs['stdout']
          del kwargs['stdout']
      if ('stderr' in kwargs):
          our_io.stderr = kwargs['stderr']
          del kwargs['stderr']
  
      invoke.invoke(cmd, io=our_io, **kwargs)
  
  if __name__ == "__main__":
      RunCBR(sys.argv)
  
subject: Fix cbr_wrapper to use LICENSE instead of install-deps.sh to find root directory.