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      1 /*
      2  * Copyright (C) 2018 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.dialer.commandline.impl;
     18 
     19 import android.content.Context;
     20 import android.content.pm.PackageInfo;
     21 import android.content.pm.PackageManager.NameNotFoundException;
     22 import android.support.annotation.NonNull;
     23 import com.android.dialer.commandline.Arguments;
     24 import com.android.dialer.commandline.Command;
     25 import com.android.dialer.inject.ApplicationContext;
     26 import com.google.common.util.concurrent.Futures;
     27 import com.google.common.util.concurrent.ListenableFuture;
     28 import java.util.Locale;
     29 import javax.inject.Inject;
     30 
     31 /** Print the version name and code. */
     32 public class Version implements Command {
     33 
     34   @NonNull
     35   @Override
     36   public String getShortDescription() {
     37     return "Print dialer version";
     38   }
     39 
     40   @NonNull
     41   @Override
     42   public String getUsage() {
     43     return "version";
     44   }
     45 
     46   private final Context appContext;
     47 
     48   @Inject
     49   Version(@ApplicationContext Context context) {
     50     this.appContext = context;
     51   }
     52 
     53   @Override
     54   public ListenableFuture<String> run(Arguments args) throws IllegalCommandLineArgumentException {
     55     try {
     56       PackageInfo info =
     57           appContext.getPackageManager().getPackageInfo(appContext.getPackageName(), 0);
     58       return Futures.immediateFuture(
     59           String.format(Locale.US, "%s(%d)", info.versionName, info.versionCode));
     60     } catch (NameNotFoundException e) {
     61       throw new RuntimeException(e);
     62     }
     63   }
     64 }
     65