#! /usr/bin/python3
# -*- coding: UTF-8
# This code is generated by scons.  Do not hand-hack it!
# This program conforms to the JAVAD document:
#    GNSS Receiver External Interface Specification
#    Revised: October 11, 2017
#
# Hereafter referred to as "the specification"
#
# This file is Copyright 2018 by the GPSD project
# SPDX-License-Identifier: BSD-2-clause
#
# This code runs compatibly under Python 2 and 3.x for x >= 2.
# Preserve this property!
#
# ENVIRONMENT:
#    Options in the ZERKOPTS environment variable will be parsed before
#    the CLI options.  A handy place to put your '-f /dev/ttyXX -s SPEED'
#
# example usages:
#    Coldboot the GPS:          zerk -p COLDBOOT
#    Print current serial port: zerk -c "print,/cur/term"
#    Decode raw log file:       zerk -r -f greis-binary.log -v 2
#    Change GPS port speed:     zerk -S 230400
#    Watch entire reset cycle:  zerk -p RESET -v 2 -w 20 -W
#    poll SVs Status:     zerk -W -w 2 -v 2 -c "out,,jps/{CS,ES,GS,Is,WS,QS}"
#    dump local gpsd data       zerk -v 2 -w 5 localhost
#
# TODO: no CRC16 packets handled yet
# TODO: more packet decodes
# Codacy D203 and D211 conflict, I choose D203
# Codacy D212 and D213 conflict, I choose D212
"""zerk -- GREIS configurator and packet decoder.

usage: zerk [OPTIONS] [server[:port[:device]]]
"""


from __future__ import absolute_import, print_function, division

import binascii      # for binascii.hexlify()
import getopt        # for getopt.getopt(), to parse CLI options
import hashlib       # for hashlib.sha                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             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