def complete_target()

in src/buildstream/_frontend/cli.py [0:0]

• 32 lines of code
• 15 McCabe index (conditional complexity)

def complete_target(args, incomplete):
    """
    :param args: full list of args typed before the incomplete arg
    :param incomplete: the incomplete text to autocomplete
    :return: all the possible user-specified completions for the param
    """

    from .. import utils

    project_conf = "project.conf"

    # First resolve the directory, in case there is an
    # active --directory/-C option
    #
    base_directory = "."
    idx = -1
    try:
        idx = args.index("-C")
    except ValueError:
        try:
            idx = args.index("--directory")
        except ValueError:
            pass

    if idx >= 0 and len(args) > idx + 1:
        base_directory = args[idx + 1]
    else:
        # Check if this directory or any of its parent directories
        # contain a project config file
        base_directory, _ = utils._search_upward_for_files(base_directory, [project_conf])

    if base_directory is None:
        # No project_conf was found in base_directory or its parents, no need
        # to try loading any project conf and avoid os.path NoneType TypeError.
        return []
    else:
        project_file = os.path.join(base_directory, project_conf)
        try:
            project = _yaml.load(project_file, shortname=project_conf)
        except LoadError:
            # If there is no project conf in context, just dont
            # even bother trying to complete anything.
            return []

    # The project is not required to have an element-path
    element_directory = project.get_str("element-path", default="")

    # If a project was loaded, use its element-path to
    # adjust our completion's base directory
    if element_directory:
        base_directory = os.path.join(base_directory, element_directory)

    complete_list = []
    for p in complete_path("File", incomplete, base_directory=base_directory):
        if p.endswith(".bst ") or p.endswith("/"):
            complete_list.append(p)
    return complete_list