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path: root/scripts/rcc_format.py
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from collections import namedtuple
import xml.etree.ElementTree as xml

resource = namedtuple('resource', 'alias variable path')

def to_variable_name(path):
    name = path.replace('/', '_')
    if name.endswith('.zstd'):
        name = name[:-5]
    name = name.replace('-', '_')
    name = name.replace('.', '_')
    return name

def filelist(file):
    root = xml.parse(file).getroot()
    if root.tag != 'RCC':
        return None

    files = []
    for child in root:
        if child.tag == 'qresource':
            prefix = child.attrib['prefix']
            for i in child:
                alias = prefix + '/' + i.attrib['alias']
                variable = to_variable_name(i.text)
                path = i.text
                files.append(resource(alias, variable, path))

    return files

def write_header(file, namespace):
    print("// Autogenerated binary file hexdump", file=file)
    print("// This file may get overwritten by the build system\n", file=file)
    print("#include <embed.h>\n", file=file)
    print("namespace {} {{".format(namespace), file=file)

def write_item(file, array_name, array_data):
    line_items = 0
    
    print("constexpr uint8_t {}[] = {{".format(array_name), file=file)

    for byte in array_data[0:len(array_data)]:
        line_items+=1
        if line_items == 16:
            print(" 0x{:02X},".format(byte), file=file)
            line_items = 0
        else:
            print(" 0x{:02X},".format(byte), file=file, end='')


    print("};", file=file)
    print("constexpr size_t {}_len = {};\n".format(array_name, len(array_data)), file=file)

def write_entries(file, resource_list):
    print("constexpr std::array entries {", file=file)
    for f in resource_list:
        print("  \"{}\", ".format(f.alias), file=file)
    print("};\n", file=file)

    print("constexpr std::array values {", file=file)
    for f in resource_list:
        print("  std::span( {}, {}_len ),".format(f.variable, f.variable), file=file)
    print("};\n", file=file)

def write_footer(file, namespace):
    print("\n}} // namespace {}".format(namespace), file=file)