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/*
* Copyright (C) 2011 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.commands.bu;
import android.app.backup.IBackupManager;
import android.os.ParcelFileDescriptor;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.util.Log;
import java.io.FileDescriptor;
import java.io.IOException;
import java.util.ArrayList;
public final class Backup {
static final String TAG = "bu";
static String[] mArgs;
int mNextArg;
IBackupManager mBackupManager;
public static void main(String[] args) {
Log.d(TAG, "Beginning: " + args[0]);
mArgs = args;
try {
new Backup().run();
} catch (Exception e) {
Log.e(TAG, "Error running backup/restore", e);
}
Log.d(TAG, "Finished.");
}
public void run() {
mBackupManager = IBackupManager.Stub.asInterface(ServiceManager.getService("backup"));
if (mBackupManager == null) {
Log.e(TAG, "Can't obtain Backup Manager binder");
return;
}
String arg = nextArg();
if (arg.equals("backup")) {
doFullBackup();
} else if (arg.equals("restore")) {
doFullRestore();
} else {
Log.e(TAG, "Invalid operation '" + arg + "'");
}
}
private void doFullBackup() {
ArrayList<String> packages = new ArrayList<String>();
boolean saveApks = false;
boolean saveShared = false;
boolean doEverything = false;
String arg;
while ((arg = nextArg()) != null) {
if (arg.startsWith("-")) {
if ("-apk".equals(arg)) {
saveApks = true;
} else if ("-noapk".equals(arg)) {
saveApks = false;
} else if ("-shared".equals(arg)) {
saveShared = true;
} else if ("-noshared".equals(arg)) {
saveShared = false;
} else if ("-all".equals(arg)) {
doEverything = true;
} else {
Log.w(TAG, "Unknown backup flag " + arg);
continue;
}
} else {
// Not a flag; treat as a package name
packages.add(arg);
}
}
if (doEverything && packages.size() > 0) {
Log.w(TAG, "-all passed for backup along with specific package names");
}
if (!doEverything && !saveShared && packages.size() == 0) {
Log.e(TAG, "no backup packages supplied and neither -shared nor -all given");
return;
}
try {
ParcelFileDescriptor fd = ParcelFileDescriptor.dup(FileDescriptor.out);
String[] packArray = new String[packages.size()];
mBackupManager.fullBackup(fd, saveApks, saveShared, doEverything,
packages.toArray(packArray));
} catch (IOException e) {
Log.e(TAG, "Can't dup out");
} catch (RemoteException e) {
Log.e(TAG, "Unable to invoke backup manager for backup");
}
}
private void doFullRestore() {
// No arguments to restore
try {
ParcelFileDescriptor fd = ParcelFileDescriptor.dup(FileDescriptor.in);
mBackupManager.fullRestore(fd);
} catch (IOException e) {
Log.e(TAG, "Can't dup System.in");
} catch (RemoteException e) {
Log.e(TAG, "Unable to invoke backup manager for restore");
}
}
private String nextArg() {
if (mNextArg >= mArgs.length) {
return null;
}
String arg = mArgs[mNextArg];
mNextArg++;
return arg;
}
}
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