get progress from adb push

# -*- coding: utf-8 -*-
import subprocess
import os
#import time


class transfer:
    def push(self, filePath, target='/mnt/sdcard/jp.apk'):
        transferred = 0.0
        fileSize = float(globalFunction.getFileSize(filePath))
        pushSp = subprocess.Popen(
            [globalConfig.adb, 'push', filePath, target],
            env=globalFunction.setAdbTraceEnv('1'),
            stderr=subprocess.PIPE,
            stdout=subprocess.PIPE
        )

        '''< some output >'''
        #for line in mysp.stderr 似乎不能逐行输出 诡异
        while True:
            line = pushSp.stderr.readline()
            if line.find('DATA', 95) >= 0:
                #输出65544，每次多传4个不知道干嘛的字节
                transferred += 65540
                process = transferred / fileSize
                #这里最后一次不记录准确字节数，以65540计，超过size就结束
                if transferred <= fileSize:
                    print process * 100
                else:
                    print 'finish'
                    break
        '''</ some output >'''


class globalFunction:
    @staticmethod
    def getFileSize(filePath):
        return os.path.getsize(filePath)

    #设置全局变量
    @staticmethod
    def setAdbTraceEnv(state):
        new_env = os.environ.copy()
        new_env['ADB_TRACE'] = state
        return new_env


class globalConfig:
    adb = 'adb'

# Test file
# file = 'C:\\Users\\tastypear\\Downloads\\baoweiluobo.apk'
#好像时间和不处理输出的时间差不多
#currentTime = time.time()
transfer().push(filePath=file)
#print time.time() - currentTime