#!/usr/bin/env python3
# Generate C header file from .config
# Usage: genconfig.py <output file>
import sys
import argparse

parser = argparse.ArgumentParser(description="Generate C header file from KConfig")
parser.add_argument("output", help="Output C file")
args = parser.parse_args()

values = {}

def value_from_str(string):
    if string == 'y':
        return 1
    if string == 'n':
        return 0
    return string

with open('.config', 'r') as f:
    lines = f.read().splitlines()


    for line in lines:
        if line.startswith('#') or len(line) == 0:
            continue
        vals = line.split('=')
        values[vals[0]] = value_from_str(vals[1])

with open(args.output, 'w') as f:
    f.write('/* This file is auto-generated by scripts/genconfig.py */\n')
    f.write('#ifndef GENCONFIG_CONFIG_H_\n')
    f.write('#define GENCONFIG_CONFIG_H_\n')

    for key, val in values.items():
        f.write(f'#define {key} {val}\n')
    f.write('#endif\n')