Backup.java revision 4a627c71ff53a4fca1f961f4b1dcc0461df18a06 
1/*
2 * Copyright (C) 2011 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.commands.bu;
18
19import android.app.backup.IBackupManager;
20import android.os.ParcelFileDescriptor;
21import android.os.RemoteException;
22import android.os.ServiceManager;
23import android.util.Log;
24
25import java.io.FileDescriptor;
26import java.io.IOException;
27import java.util.ArrayList;
28
29public final class Backup {
30    static final String TAG = "Backup";
31
32    private static String[] mArgs;
33    private int mNextArg;
34
35    public static void main(String[] args) {
36        mArgs = args;
37        try {
38            new Backup().run();
39        } catch (Exception e) {
40            Log.e(TAG, "Error running backup", e);
41        }
42        Log.d(TAG, "Finished.");
43    }
44
45    public void run() {
46        IBackupManager bmgr = IBackupManager.Stub.asInterface(ServiceManager.getService("backup"));
47        if (bmgr == null) {
48            System.err.println("ERROR: could not contact backup manager");
49            return;
50        }
51
52        ArrayList<String> packages = new ArrayList<String>();
53        boolean saveApks = false;
54        boolean saveShared = false;
55        boolean doEverything = false;
56
57        String arg;
58        while ((arg = nextArg()) != null) {
59
60            if (arg.startsWith("-")) {
61                if ("-apk".equals(arg)) {
62                    saveApks = true;
63                } else if ("-noapk".equals(arg)) {
64                    saveApks = false;
65                } else if ("-shared".equals(arg)) {
66                    saveShared = true;
67                } else if ("-noshared".equals(arg)) {
68                    saveShared = false;
69                } else if ("-all".equals(arg)) {
70                    doEverything = true;
71                } else {
72                    System.err.println("ERROR: unknown flag " + arg);
73                    return;
74                }
75            } else {
76                // Not a flag; treat as a package name
77                packages.add(arg);
78            }
79        }
80
81        if (doEverything && packages.size() > 0) {
82            System.err.println("ERROR: -all used with specific package set");
83            return;
84        }
85
86        if (!doEverything && packages.size() == 0) {
87            System.err.println("ERROR: no packages supplied and -all not used");
88            return;
89        }
90
91        try {
92            ParcelFileDescriptor fd = ParcelFileDescriptor.dup(FileDescriptor.out);
93            String[] packArray = new String[packages.size()];
94            bmgr.fullBackup(fd, saveApks, saveShared, doEverything, packages.toArray(packArray));
95        } catch (IOException e) {
96            System.err.println("ERROR: cannot dup System.out");
97        } catch (RemoteException e) {
98            System.err.println("ERROR: unable to invoke backup manager service");
99        }
100    }
101
102    private String nextArg() {
103        if (mNextArg >= mArgs.length) {
104            return null;
105        }
106        String arg = mArgs[mNextArg];
107        mNextArg++;
108        return arg;
109    }
110}