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/*
* Copyright (C) 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.tradefed.targetprep;
import com.android.tradefed.build.IBuildInfo;
import com.android.tradefed.config.Option;
import com.android.tradefed.config.OptionClass;
import com.android.tradefed.device.DeviceNotAvailableException;
import com.android.tradefed.device.ITestDevice;
import com.android.tradefed.log.LogUtil.CLog;
import com.android.tradefed.util.CommandResult;
import com.android.tradefed.util.CommandStatus;
/**
* A {@link ITargetPreparer} that wipes userdata
*/
@OptionClass(alias = "device-wiper")
public class DeviceWiper implements ITargetPreparer {
@Option(name = "disable", description = "disables the device wiper")
protected boolean mDisable = false;
@Option(name = "use-erase", description =
"instruct wiper to use fastboot erase instead of format")
protected boolean mUseErase = false;
/**
* Return True if this target preparer has been disabled and will do nothing. False otherwise.
*/
public boolean isDisabled() {
return mDisable;
}
@Override
public void setUp(ITestDevice device, IBuildInfo buildInfo) throws TargetSetupError,
DeviceNotAvailableException {
if (mDisable) {
return;
}
CLog.i("Wiping device");
device.rebootIntoBootloader();
if (mUseErase) {
doErase(device);
} else {
doFormat(device);
}
device.executeFastbootCommand("reboot");
device.waitForDeviceAvailable();
}
private void doFormat(ITestDevice device) throws DeviceNotAvailableException, TargetSetupError {
CLog.d("Attempting fastboot wiping");
CommandResult r = device.executeLongFastbootCommand("-w");
if (r.getStatus() != CommandStatus.SUCCESS) {
throw new TargetSetupError(String.format("fastboot wiping failed: %s", r.getStderr()),
device.getDeviceDescriptor());
}
}
private void doErase(ITestDevice device) throws DeviceNotAvailableException, TargetSetupError {
performFastbootOp(device, "erase", "cache");
performFastbootOp(device, "erase", "userdata");
}
private void performFastbootOp(ITestDevice device, String op, String partition)
throws DeviceNotAvailableException, TargetSetupError {
CLog.d("Attempting fastboot %s %s", op, partition);
CommandResult r = device.executeLongFastbootCommand(op, partition);
if (r.getStatus() != CommandStatus.SUCCESS) {
throw new TargetSetupError(String.format("%s %s failed: %s", op, partition,
r.getStderr()), device.getDeviceDescriptor());
}
}
}
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