def _compare_tool_paths()

in tools/migration/ctoolchain_comparator_lib.py [0:0]

• 42 lines of code
• 14 McCabe index (conditional complexity)

def _compare_tool_paths(tool_paths_before, tool_paths_after):
  """Compares two "CToolchain.ToolPath" lists."""
  tool_to_path_before = {}
  tool_to_path_after = {}
  for tool_path in tool_paths_before:
    tool_to_path_before[tool_path.name] = (
        tool_path.path if tool_path.path != "NOT_USED" else "")
  for tool_path in tool_paths_after:
    tool_to_path_after[tool_path.name] = (
        tool_path.path if tool_path.path != "NOT_USED" else "")

  tool_names_before = set(tool_to_path_before.keys())
  tool_names_after = set(tool_to_path_after.keys())

  before_after_diff = tool_names_before - tool_names_after
  after_before_diff = tool_names_after - tool_names_before

  diff_string = "Difference in 'tool_path' field:"
  found_difference = False
  if before_after_diff:
    if not found_difference:
      print(diff_string)  # pylint: disable=superfluous-parens
      found_difference = True
    print(("* List before change contains entries for the following tools "
           "that the list after the change doesn't:\n%s") % _array_to_string(
               before_after_diff, ordered=True))
  if after_before_diff:
    if not found_difference:
      print(diff_string)  # pylint: disable=superfluous-parens
      found_difference = True
    print(("* List after change contains entries for the following tools that "
           "the list before the change doesn't:\n%s") % _array_to_string(
               after_before_diff, ordered=True))

  for tool in tool_to_path_before:
    path_before = tool_to_path_before[tool]
    path_after = tool_to_path_after.get(tool, None)
    if path_after and path_after != path_before:
      if not found_difference:
        print(diff_string)  # pylint: disable=superfluous-parens
        found_difference = True
      print(("* Path for tool '%s' differs before and after the change:\n"
             "Value before change:\t'%s'\n"
             "Value after change:\t'%s'") % (tool, path_before, path_after))
  if found_difference:
    print("")  # pylint: disable=superfluous-parens
  return found_difference