def check_file()

in Build/check_indents.py [0:0]

• 19 lines of code
• 7 McCabe index (conditional complexity)

def check_file(filename : str) -> bool:
    """
    Checks a single file, returning True and writing a cleaned file if a mix
    of tabs and spaces was found.
    """
    problem_found = False
    found_spaces = False
    found_tabs = False

    with open(filename, 'r') as f:
        contents = list(f.readlines())

    for line in contents:
        # Find the leading whitespace.
        whitespace, rest = find_whitespace(line)
        found_spaces = found_spaces or (' ' in whitespace)
        found_tabs = found_tabs or ('\t' in whitespace)

    problem_found = found_spaces and found_tabs

    if problem_found:
        print(f"Found mixed spaces and tabs in {filename}.")
        # Time to normalize!
        with open(filename, 'w') as f:
            f.writelines(
                whitespace.replace('\t', '    ') + rest
                for whitespace, rest in map(find_whitespace, contents)
            )

    return problem_found