Install Pebble face from Termux

install_pebble_face.py

"""
Install Pebble face from Termux

Requires:
- libpebble2

Usage:
  python2 install_pebble_face.py <pbw path>
"""
import sys
import os
import socket
import struct
import fcntl

from libpebble2.communication import PebbleConnection
from libpebble2.communication.transports.websocket import WebsocketTransport, MessageTargetPhone
from libpebble2.communication.transports.websocket.protocol import WebSocketInstallBundle, WebSocketInstallStatus
from libpebble2.exceptions import TimeoutError


class Installer(object):
    def __init__(self):
        self._ready = False
        try:
            self._pebble = self.get_pebble()
            self._ready = True
        except Exception as err:
            print(err.message)

    def get_ip(self, ifname):
        s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
        return socket.inet_ntoa(fcntl.ioctl(
            s.fileno(),
            0x8915,  # SIOCGIFADDR
            struct.pack('256s', ifname[:15])
        )[20:24])

    def get_pebble(self):
        transport = self.get_transport()
        connection = PebbleConnection(transport)
        connection.connect()
        connection.run_async()
        return connection

    def get_transport(self):
        ip = self.get_ip('wlan0')
        if not ip.startswith('192.168.'):
            raise RuntimeError('LAN IP not found')
        print('Phone IP: %s' % ip)
        port = 9000
        return WebsocketTransport('ws://{}:{}/'.format(ip, port))

    def close(self):
        self._pebble.transport.ws.close()

    def install(self, pbw):
        if not self._ready:
            print('Phone connection not found')
            return

        with open(pbw) as f:
            print("Installing app...")
            self._pebble.transport.send_packet(
                WebSocketInstallBundle(pbw=f.read()), target=MessageTargetPhone())
            try:
                result = self._pebble.read_transport_message(
                    MessageTargetPhone, WebSocketInstallStatus, timeout=300)
            except TimeoutError:
                print("Timed out waiting for install confirmation.")
            except Exception as err:
                print(err.message)
            if result.status != WebSocketInstallStatus.StatusCode.Success:
                print("App install failed.")
            else:
                print("App install succeeded.")

        self.close()


def main():
    pbw = sys.argv[1]
    if not os.path.exists(pbw):
        print('pbw path is wrong: %s' % pbw)
        return
    Installer().install(pbw)


if __name__ == '__main__':
    main()


# EOF