update_uuids.py

# from os import system
from json import dumps
import yaml # pip install PyYAML or uv run --with PyYAML update_uuids.py

# system('git submodule update --remote Bluetooth_SIG_UUIDs') # git should also be installed

infiles = ['service_uuids', 'characteristic_uuids', 'descriptors']
outfiles = ['gatt-services', 'gatt-characteristics', 'gatt-descriptors']
varnames = ['SERVICES', 'CHARACTERISTICS', 'DESCRIPTORS']

for i in range(3):
    items = yaml.load(open('Bluetooth_SIG_UUIDs/assigned_numbers/uuids/'+infiles[i]+'.yaml', encoding='utf8'), Loader=yaml.Loader)

    itemsout = {}

    for item in items['uuids']:
        desid = item['id'].split('.')[-1]

        # restore gap. and gatt. prefixes for certain characteristics and surround with quotes
        if '.gap.' in item['id']:
            desid = "'gap."+desid+"'"
        if '.gatt.' in item['id']:
            desid = "'gatt."+desid+"'"

        # a dash in the characteristic name also requires putting the item in quotes
        if '-' in desid and not '.gatt.' in item['id'] and not '.gap.' in item['id']:
            desid = "'"+desid+"'"

        itemsout[desid] = hex(item['uuid']).upper().replace('X', 'x')

    # generate the final output file
    # beginning of the file
    result = '/* eslint-disable quote-props */\n// Do not manually edit this file. Contents generated by ../update_uuids.py from https://bitbucket.org/bluetooth-SIG/public/src/main/assigned_numbers/uuids/'+infiles[i]+'.yaml\n// eslint-disable-next-line no-unused-vars\nconst STANDARD_GATT_'+varnames[i]+' = '
    
    # manually add some items to the end of characteristics list for compatibility with Chrome
    additionalcharacteristics = ''
    if varnames[i] == 'CHARACTERISTICS':
        additionalcharacteristics = ",\n    // the following were renamed in or removed from the spec but Chrome still ships them\n    'gap.central_address_resolution_support': 0x2AA6,\n    'local_east_coordinate.xml': 0x2AB1,\n    analog: 0x2A58,\n    digital: 0x2A56,\n    two_zone_heart_rate_limit: 0x2A95,\n    magnetic_flux_density_2D: 0x2AA0,\n    magnetic_flux_density_3D: 0x2AA1"

    # convert the JSON format to a JS file format
    result = result+dumps(dict(sorted(itemsout.items()))).replace('"', '').replace(',', ",\n   ").replace('{', '{\n    ').replace('}', additionalcharacteristics+',\n}').replace('\\', '')+';\n'

    open('extension/'+outfiles[i]+'.js', 'w').write(result)