Generate C code for Betaflight build flags

buildflags.py

import requests


JSON_URL = "https://build.betaflight.com/api/options/4.5.0-zulu"


def get_gates_options() -> tuple:
    data = requests.get(JSON_URL, timeout=2).json()
    gates = []
    options = []
    groups = list(data.keys())
    for group_index, option_list in enumerate(data.values()):
        for i, option in enumerate(option_list):
            define = option.get("value")
            if define:
                gates.append(define)
                number = option.get("key")
                name = define.replace("USE_", "BUILD_OPTION_")
                options.append((name, number, groups[group_index]))
    return gates, options


def main():
    gates, options = get_gates_options()

    with open("enum.out", "w") as f:
        maxlen = max(map(lambda x: len(x[0]), options)) + 4
        lines = []
        last_group = None
        for k, v, g in options:
            if g != last_group:
                lines.append(f"// {g}\n")
                last_group = g
            lines.append("#define {:<{width}}{}\n".format(k, v, width=maxlen))
        f.writelines(lines)

    with open("write.out", "w+") as f:
        lines = []
        indent = " " * 4
        for i, define in enumerate(gates):
            option_name, _, _ = options[i]
            lines.append(f"#ifdef {define}\n")
            lines.append(f"{indent}{option_name},\n")
            lines.append("#endif\n")
        f.writelines(lines)


if __name__ == "__main__":
    main()