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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.ant;
     18 
     19 import com.android.sdklib.internal.build.BuildConfigGenerator;
     20 
     21 import org.apache.tools.ant.BuildException;
     22 import org.apache.tools.ant.types.Path;
     23 
     24 import java.io.File;
     25 import java.io.IOException;
     26 
     27 public class BuildConfigTask extends BuildTypedTask {
     28 
     29     private String mGenFolder;
     30     private String mAppPackage;
     31 
     32     public void setGenFolder(Path path) {
     33         mGenFolder = TaskHelper.checkSinglePath("genFolder", path);
     34     }
     35 
     36     public void setPackage(String appPackage) {
     37         mAppPackage = appPackage;
     38     }
     39 
     40 
     41     @Override
     42     public void execute() throws BuildException {
     43         if (mGenFolder == null) {
     44             throw new BuildException("Missing attribute genFolder");
     45         }
     46         if (mAppPackage == null) {
     47             throw new BuildException("Missing attribute package");
     48         }
     49 
     50         BuildConfigGenerator generator = new BuildConfigGenerator(
     51                 mGenFolder, mAppPackage,
     52                 Boolean.parseBoolean(getBuildType()));
     53 
     54         // first check if the file is missing.
     55         File buildConfigFile = generator.getBuildConfigFile();
     56         boolean missingFile = buildConfigFile.exists() == false;
     57 
     58         if (missingFile || hasBuildTypeChanged()) {
     59             if (isNewBuild()) {
     60                 System.out.println("Generating BuildConfig class.");
     61             } else if (missingFile) {
     62                 System.out.println("BuildConfig class missing: Generating new BuildConfig class.");
     63             } else {
     64                 System.out.println("Build type changed: Generating new BuildConfig class.");
     65             }
     66 
     67             try {
     68                 generator.generate();
     69             } catch (IOException e) {
     70                 throw new BuildException("Failed to create BuildConfig class", e);
     71             }
     72         } else {
     73             System.out.println("No need to generate new BuildConfig.");
     74         }
     75     }
     76 }
     77