import configparser

import subprocess

try:
    p = subprocess.Popen(['cat /home/pi/device_name'], shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
    out, err = p.communicate()
    # 设备名称，必须要有
    device_name = out.decode('utf-8').strip()

    # 读取配置
    config = configparser.ConfigParser()
    # 读取公共配置
    config.read('conf/main/common.conf')
    # 域名
    broker = config.get("broker", "host")
    # 端口，这里必须是int类型
    port = config.getint("broker", "port")

    # 读取设备配置
    config.read('conf/device/device.conf')
    # 订阅的主题
    subscribe_topic = config.get(device_name, "subscribe_topic")
    # 发布信息的主题
    info_topic = config.get(device_name, "info_topic")
    # 用户
    username = config.get(device_name, "username")
    # 密码
    password = config.get(device_name, "password")

except Exception as e:
    # print(e)
    pass