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#!/bin/bash
#############################################################################
##
## Copyright (C) 2021 The Qt Company Ltd.
## Contact: https://www.qt.io/licensing/
##
## This file is part of the plugins of the Qt Toolkit.
##
## $QT_BEGIN_LICENSE:GPL-EXCEPT$
## Commercial License Usage
## Licensees holding valid commercial Qt licenses may use this file in
## accordance with the commercial license agreement provided with the
## Software or, alternatively, in accordance with the terms contained in
## a written agreement between you and The Qt Company. For licensing terms
## and conditions see https://www.qt.io/terms-conditions. For further
## information use the contact form at https://www.qt.io/contact-us.
##
## GNU General Public License Usage
## Alternatively, this file may be used under the terms of the GNU
## General Public License version 3 as published by the Free Software
## Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
## included in the packaging of this file. Please review the following
## information to ensure the GNU General Public License requirements will
## be met: https://www.gnu.org/licenses/gpl-3.0.html.
##
## $QT_END_LICENSE$
##
#############################################################################
# This util launches the Android emulator and ensures it doesn't stuck/freeze
# by detecting that and restarting it
set -ex
EMULATOR_MAX_RETRIES=5
EMULATOR_EXEC="$ANDROID_SDK_ROOT/emulator/emulator"
ADB_EXEC="$ANDROID_SDK_ROOT/platform-tools/adb"
if [[ -z "${ANDROID_EMULATOR}" ]]; then
EMULATOR_NAME="@x86emulator"
else
EMULATOR_NAME="$ANDROID_EMULATOR"
fi
function check_for_android_device
{
$ADB_EXEC devices \
| awk 'NR==2{print $2}' | grep -qE '^(online|device)$'
}
function check_if_fully_booted
{
# The "getprop" command separates lines with \r\n so we trim them
bootanim=` $ADB_EXEC shell getprop init.svc.bootanim | tr -d '\r\n'`
boot_completed=`$ADB_EXEC shell getprop sys.boot_completed | tr -d '\r\n'`
[ "$bootanim" = stopped ] && [ "$boot_completed" = 1 ]
}
function check_for_package_manager
{
( set +e
pm_output=`$ADB_EXEC shell pm get-install-location`
pm_retval=$?
[ $pm_retval = 0 ] && [[ ! "$pm_output" =~ ^Error: ]]
)}
# NOTE: It happens that the device "finishes" booting and getprop shows
# bootanim=stopped and boot_completed=1. But sometimes not all packages have
# been installed (`pm list packages` shows only 16 packages installed), and
# after around half a minute the boot animation starts spinning
# (bootanim=running) again despite boot_completed=1 all the time. After some
# minutes the boot animation stops again and the list of packages contains 80
# packages, among which is also the "development" package.
function check_for_development_installed
{
package_list=`$ADB_EXEC shell pm list packages`
echo "$package_list" | grep -q package:com.android.development
}
for counter in `seq 1 ${EMULATOR_MAX_RETRIES}`; do
$ADB_EXEC start-server
if check_for_android_device
then
echo "Emulator is already running but it shouldn't be. Aborting\!"
exit 3
fi
echo "Starting emulator, try ${counter}/${EMULATOR_MAX_RETRIES}"
$EMULATOR_EXEC $EMULATOR_NAME \
-gpu swiftshader_indirect -no-audio -partition-size 4096 \
-cores 4 -memory 3500 -no-snapshot-load -no-snapshot-save \
</dev/null >$HOME/emulator.log 2>&1 &
emulator_pid=$!
disown $emulator_pid
$ADB_EXEC wait-for-device
# Wait about one minute for the emulator to come up
emulator_status=down
for i in `seq 300`
do
sleep 1
echo $i
# Yes, you need to check continuously for all these heuristics,
# see comment above
if check_for_android_device \
&& check_if_fully_booted \
&& check_for_package_manager \
&& check_for_development_installed
then
emulator_status=up
break
fi
done
# If emulator status is still offline after timeout period,
# we can assume it's stuck, and we must restart it
if [ $emulator_status = up ]
then
echo "Emulator started successfully"
break
else
if [ $counter -lt $EMULATOR_MAX_RETRIES ]; then
echo "Emulator failed to start, forcefully killing current instance and re-starting emulator"
kill $emulator_pid || true
sleep 5
elif [ $counter -eq $EMULATOR_MAX_RETRIES ]; then
echo "Emulator failed to start, reached maximum number of retries. Aborting\!"
exit 2
fi
fi
done
exit 0
|
