Enable perfboot.py to install APKs before measurement.

        out, _ = p.communicate()

        return self._parse_shell_output(out)

    def install(self, filename):

        return self._simple_call(['install', filename])

    def install(self, filename, replace=False):

        cmd = ['install']

        if replace:

            cmd.append('-r')

        cmd.append(filename)

        return self._simple_call(cmd)

    def push(self, local, remote):

        return self._simple_call(['push', local, remote])

import argparse

import atexit

import cStringIO

import glob

import inspect

import logging

import math

                        'event tags are read. Every line contains one event '

                        'tag and the last event tag is used to detect that '

                        'the device has finished booting.')

    parser.add_argument('--apk-dir', help='Specify the directory which contains '

                        'APK files to be installed before measuring boot time.')

    return parser.parse_args()

def install_apks(device, apk_dir):

    for apk in glob.glob(os.path.join(apk_dir, '*.apk')):

        print 'Installing: ' + apk

        device.install(apk, replace=True)

def main():

    args = parse_args()

    if args.verbose:

            device.get_prop('ro.build.version.incremental'))

    check_dm_verity_settings(device)

    if args.apk_dir:

        install_apks(device, args.apk_dir)

    record_list = []

    event_tags = filter_event_tags(read_event_tags(args.tags), device)

    init_perf(device, args.output, record_list, event_tags)