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      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 
     17 package com.android.tradefed.targetprep;
     18 
     19 import com.android.ddmlib.IDevice;
     20 import com.android.ddmlib.Log;
     21 import com.android.tradefed.build.BuildInfoKey.BuildInfoFileKey;
     22 import com.android.tradefed.build.IBuildInfo;
     23 import com.android.tradefed.build.IDeviceBuildInfo;
     24 import com.android.tradefed.config.Option;
     25 import com.android.tradefed.config.OptionClass;
     26 import com.android.tradefed.device.DeviceNotAvailableException;
     27 import com.android.tradefed.device.ITestDevice;
     28 import com.android.tradefed.util.FileUtil;
     29 
     30 import java.io.File;
     31 import java.util.ArrayList;
     32 import java.util.Arrays;
     33 import java.util.Collection;
     34 
     35 /**
     36  * A {@link ITargetPreparer} that attempts to push any number of files from any host path to any
     37  * device path.
     38  *
     39  * <p>Should be performed *after* a new build is flashed, and *after* DeviceSetup is run (if
     40  * enabled)
     41  */
     42 @OptionClass(alias = "push-file")
     43 public class PushFilePreparer extends BaseTargetPreparer implements ITargetCleaner {
     44     private static final String LOG_TAG = "PushFilePreparer";
     45     private static final String MEDIA_SCAN_INTENT =
     46             "am broadcast -a android.intent.action.MEDIA_MOUNTED -d file://%s "
     47                     + "--receiver-include-background";
     48 
     49     @Option(name="push", description=
     50             "A push-spec, formatted as '/path/to/srcfile.txt->/path/to/destfile.txt' or " +
     51             "'/path/to/srcfile.txt->/path/to/destdir/'. May be repeated.")
     52     private Collection<String> mPushSpecs = new ArrayList<>();
     53 
     54     @Option(name="post-push", description=
     55             "A command to run on the device (with `adb shell (yourcommand)`) after all pushes " +
     56             "have been attempted.  Will not be run if a push fails with abort-on-push-failure " +
     57             "enabled.  May be repeated.")
     58     private Collection<String> mPostPushCommands = new ArrayList<>();
     59 
     60     @Option(name="abort-on-push-failure", description=
     61             "If false, continue if pushes fail.  If true, abort the Invocation on any failure.")
     62     private boolean mAbortOnFailure = true;
     63 
     64     @Option(name="trigger-media-scan", description=
     65             "After pushing files, trigger a media scan of external storage on device.")
     66     private boolean mTriggerMediaScan = false;
     67 
     68     @Option(name="cleanup", description = "Whether files pushed onto device should be cleaned up "
     69             + "after test. Note that the preparer does not verify that files/directories have "
     70             + "been deleted.")
     71     private boolean mCleanup = false;
     72 
     73     @Option(name="remount-system", description="Remounts system partition to be writable "
     74             + "so that files could be pushed there too")
     75     private boolean mRemount = false;
     76 
     77     private Collection<String> mFilesPushed = null;
     78 
     79     /**
     80      * Helper method to only throw if mAbortOnFailure is enabled.  Callers should behave as if this
     81      * method may return.
     82      */
     83     private void fail(String message, ITestDevice device) throws TargetSetupError {
     84         if (mAbortOnFailure) {
     85             throw new TargetSetupError(message, device.getDeviceDescriptor());
     86         } else {
     87             // Log the error and return
     88             Log.w(LOG_TAG, message);
     89         }
     90     }
     91 
     92     /**
     93      * Resolve relative file path via {@link IBuildInfo} and test cases directories.
     94      *
     95      * @param buildInfo the build artifact information
     96      * @param fileName relative file path to be resolved
     97      * @return the file from the build info or test cases directories
     98      */
     99     public File resolveRelativeFilePath(IBuildInfo buildInfo, String fileName) {
    100         File src = null;
    101         if (buildInfo != null) {
    102             src = buildInfo.getFile(fileName);
    103             if (src != null && src.exists()) {
    104                 return src;
    105             }
    106         }
    107 
    108         if (buildInfo instanceof IDeviceBuildInfo) {
    109             IDeviceBuildInfo deviceBuild = (IDeviceBuildInfo) buildInfo;
    110             // If it exists always look first in the ANDROID_TARGET_OUT_TESTCASES
    111             File targetTestCases = deviceBuild.getFile(BuildInfoFileKey.TARGET_LINKED_DIR);
    112             if (targetTestCases != null) {
    113                 src = FileUtil.findFile(targetTestCases, fileName);
    114             }
    115             if (src != null && src.exists()) {
    116                 return src;
    117             }
    118             // Search the full tests dir if no target dir is available.
    119             File testsDir = deviceBuild.getTestsDir();
    120             return FileUtil.findFile(testsDir, fileName);
    121         }
    122         return null;
    123     }
    124 
    125     /**
    126      * {@inheritDoc}
    127      */
    128     @Override
    129     public void setUp(ITestDevice device, IBuildInfo buildInfo) throws TargetSetupError, BuildError,
    130             DeviceNotAvailableException {
    131         mFilesPushed = new ArrayList<>();
    132         if (mRemount) {
    133             device.remountSystemWritable();
    134         }
    135         for (String pushspec : mPushSpecs) {
    136             String[] pair = pushspec.split("->");
    137             if (pair.length != 2) {
    138                 fail(String.format("Invalid pushspec: '%s'", Arrays.asList(pair)), device);
    139                 continue;
    140             }
    141             Log.d(LOG_TAG, String.format("Trying to push local '%s' to remote '%s'", pair[0],
    142                     pair[1]));
    143 
    144             File src = new File(pair[0]);
    145             if (!src.isAbsolute()) {
    146                 src = resolveRelativeFilePath(buildInfo, pair[0]);
    147             }
    148             if (src == null || !src.exists()) {
    149                 fail(String.format("Local source file '%s' does not exist", pair[0]), device);
    150                 continue;
    151             }
    152             if (src.isDirectory()) {
    153                 if (!device.pushDir(src, pair[1])) {
    154                     fail(String.format("Failed to push local '%s' to remote '%s'", pair[0],
    155                             pair[1]), device);
    156                     continue;
    157                 } else {
    158                     mFilesPushed.add(pair[1]);
    159                 }
    160             } else {
    161                 if (!device.pushFile(src, pair[1])) {
    162                     fail(String.format("Failed to push local '%s' to remote '%s'", pair[0],
    163                             pair[1]), device);
    164                     continue;
    165                 } else {
    166                     mFilesPushed.add(pair[1]);
    167                 }
    168             }
    169         }
    170 
    171         for (String command : mPostPushCommands) {
    172             device.executeShellCommand(command);
    173         }
    174 
    175         if (mTriggerMediaScan) {
    176             String mountPoint = device.getMountPoint(IDevice.MNT_EXTERNAL_STORAGE);
    177             device.executeShellCommand(String.format(MEDIA_SCAN_INTENT, mountPoint));
    178         }
    179     }
    180 
    181     /**
    182      * {@inheritDoc}
    183      */
    184     @Override
    185     public void tearDown(ITestDevice device, IBuildInfo buildInfo, Throwable e)
    186             throws DeviceNotAvailableException {
    187         if (!(e instanceof DeviceNotAvailableException) && mCleanup && mFilesPushed != null) {
    188             if (mRemount) {
    189                 device.remountSystemWritable();
    190             }
    191             for (String devicePath : mFilesPushed) {
    192                 device.executeShellCommand("rm -r " + devicePath);
    193             }
    194         }
    195     }
    196 }
    197