Function _ExpandDirectories

tools/cpplint.py:7949–7975

Searches a list of filenames and replaces directories in the list with all files descending from those directories. Files with extensions not in the valid extensions list are excluded. Args: filenames: A list of files or directories Returns: A list of all files that are

(filenames)

def _ExpandDirectories(filenames):
    """Searches a list of filenames and replaces directories in the list with
    all files descending from those directories. Files with extensions not in
    the valid extensions list are excluded.

    Args:
      filenames: A list of files or directories

    Returns:
      A list of all files that are members of filenames or descended from a
      directory in filenames
    """
    expanded = set()
    for filename in filenames:
        if not os.path.isdir(filename):
            expanded.add(filename)
            continue

        for root, _, files in os.walk(filename):
            for loopfile in files:
                fullname = os.path.join(root, loopfile)
                fullname = fullname.removeprefix("." + os.path.sep)
                expanded.add(fullname)

    return [
        filename for filename in expanded if os.path.splitext(filename)[1][1:] in GetAllExtensions()
    ]


def _FilterExcludedFiles(fnames):