def main()

in utils/uf2conv.py [0:0]

• 79 lines of code
• 20 McCabe index (conditional complexity)

def main():
    global appstartaddr, familyid
    def error(msg):
        print(msg)
        sys.exit(1)
    parser = argparse.ArgumentParser(description='Convert to UF2 or flash directly.')
    parser.add_argument('input', metavar='INPUT', type=str, nargs='?',
                        help='input file (HEX, BIN or UF2)')
    parser.add_argument('-b' , '--base', dest='base', type=str,
                        default="0x2000",
                        help='set base address of application for BIN format (default: 0x2000)')
    parser.add_argument('-o' , '--output', metavar="FILE", dest='output', type=str,
                        help='write output to named file; defaults to "flash.uf2" or "flash.bin" where sensible')
    parser.add_argument('-d' , '--device', dest="device_path",
                        help='select a device path to flash')
    parser.add_argument('-l' , '--list', action='store_true',
                        help='list connected devices')
    parser.add_argument('-c' , '--convert', action='store_true',
                        help='do not flash, just convert')
    parser.add_argument('-D' , '--deploy', action='store_true',
                        help='just flash, do not convert')
    parser.add_argument('-f' , '--family', dest='family', type=str,
                        default="0x0",
                        help='specify familyID - number or name (default: 0x0)')
    parser.add_argument('-C' , '--carray', action='store_true',
                        help='convert binary file to a C array, not UF2')
    parser.add_argument('-i', '--info', action='store_true',
                        help='display header information from UF2, do not convert')
    args = parser.parse_args()
    appstartaddr = int(args.base, 0)

    families = load_families()

    if args.family.upper() in families:
        familyid = families[args.family.upper()]
    else:
        try:
            familyid = int(args.family, 0)
        except ValueError:
            error("Family ID needs to be a number or one of: " + ", ".join(families.keys()))

    if args.list:
        list_drives()
    else:
        if not args.input:
            error("Need input file")
        with open(args.input, mode='rb') as f:
            inpbuf = f.read()
        from_uf2 = is_uf2(inpbuf)
        ext = "uf2"
        if args.deploy:
            outbuf = inpbuf
        elif from_uf2 and not args.info:
            outbuf = convert_from_uf2(inpbuf)
            ext = "bin"
        elif from_uf2 and args.info:
            outbuf = ""
            convert_from_uf2(inpbuf)
        elif is_hex(inpbuf):
            outbuf = convert_from_hex_to_uf2(inpbuf.decode("utf-8"))
        elif args.carray:
            outbuf = convert_to_carray(inpbuf)
            ext = "h"
        else:
            outbuf = convert_to_uf2(inpbuf)
        if not args.deploy and not args.info:
            print("Converted to %s, output size: %d, start address: 0x%x" %
                  (ext, len(outbuf), appstartaddr))
        if args.convert or ext != "uf2":
            drives = []
            if args.output == None:
                args.output = "flash." + ext
        else:
            drives = get_drives()

        if args.output:
            write_file(args.output, outbuf)
        else:
            if len(drives) == 0:
                error("No drive to deploy.")
        for d in drives:
            print("Flashing %s (%s)" % (d, board_id(d)))
            write_file(d + "/NEW.UF2", outbuf)