start_emulator.py - mozsearch

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#!/usr/bin/env python

# Copyright 2021 The Chromium Authors. All rights reserved.

# Use of this source code is governed by a BSD-style license that can be

# found in the LICENSE file.

"""Starts up a long running emulator for unit testing and developer use."""

import argparse

import common

import common_args

import logging

import os

import time

import subprocess

from fvdl_target import FvdlTarget

def main():

  parser = argparse.ArgumentParser(

      description='Launches a long-running emulator that can '

      'be re-used for multiple test runs.')

  AddLongRunningArgs(parser)

  args = parser.parse_args()

  args.out_dir = None

  args.device = 'fvdl'

  common_args.ConfigureLogging(args)

  with common_args.GetDeploymentTargetForArgs(args) as fvdl_target:

    if fvdl_target._with_network:

      logging.info('If you haven\'t set up tuntap, you may be prompted '

                   'for your sudo password to set up tuntap.')

    fvdl_target.Start()

    logging.info('Emulator successfully started up! If you are running '

                 'multiple fuchsia devices, specify the port the ip address '

                 'via the --host flag.')

    if fvdl_target._with_network:

      logging.info('You can now use the "-d" flag when running '

                   'Chrome Fuchsia tests to target this emulator.')

    while fvdl_target._IsEmuStillRunning():

      time.sleep(10)

      pass

def AddLongRunningArgs(arg_parser):

  arg_parser.add_argument('-v',

                          '--verbose',

                          default=False,

                          action='store_true',

                          help='Enable debug-level logging.')

  fvdl_args = arg_parser.add_argument_group('FVDL arguments')

  fvdl_args.add_argument('--target-cpu',

                         default=common_args.GetHostArchFromPlatform(),

                         help='Set target_cpu for the emulator. Defaults '

                         'to the same architecture as host cpu.')

  fvdl_args.add_argument('--system-log-file',

                         help='File to write system logs to. Specify '

                         '\'-\' to log to stdout.')

  fvdl_args.add_argument('--allow-no-kvm',

                         action='store_false',

                         dest='require_kvm',

                         default=True,

                         help='Disables KVM acceleration for the emulator.')

  fvdl_args.add_argument('--enable-graphics',

                          action='store_true',

                          default=False,

                          help='Start FVDL with graphics instead of '\

                              'headless.')

  fvdl_args.add_argument('--hardware-gpu',

                          action='store_true',

                          default=False,

                          help='Use local GPU hardware instead of '\

                              'Swiftshader.')

  fvdl_args.add_argument('--without-network',

                         action='store_false',

                         dest='with_network',

                         default=True,

                         help='Run emulator without emulated nic via tun/tap.')

  fvdl_args.add_argument('--ram-size-mb',

                         type=int,

                         default=8192,

                         help='Set the ram size amount for the emulator.')

if __name__ == '__main__':

  main()