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      1 /*
      2  * Copyright (C) 2008 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 util.build;
     18 
     19 import java.io.File;
     20 import java.io.IOException;
     21 import java.util.ArrayList;
     22 import java.util.List;
     23 
     24 public class JackDexBuildStep extends BuildStep {
     25 
     26     private final boolean deleteInputFileAfterBuild;
     27 
     28     JackDexBuildStep(BuildFile inputFile, BuildFile outputFile,
     29             boolean deleteInputFileAfterBuild) {
     30         super(inputFile, outputFile);
     31         this.deleteInputFileAfterBuild = deleteInputFileAfterBuild;
     32     }
     33 
     34     @Override
     35     boolean build() {
     36 
     37         if (super.build()) {
     38             String outputFilePath = outputFile.fileName.getAbsolutePath();
     39             if (outputFilePath.endsWith(".dex")) {
     40               throw new AssertionError(
     41                   "JackDexBuildStep does not support dex output outside of an archive");
     42             }
     43 
     44             File outDir = outputFile.fileName.getParentFile();
     45             if (!outDir.exists() && !outDir.mkdirs()) {
     46                 System.err.println("failed to create output dir: "
     47                         + outDir.getAbsolutePath());
     48                 return false;
     49             }
     50 
     51             File tmpOutDir = new File(outDir, outputFile.fileName.getName() + ".dexTmp");
     52             if (!tmpOutDir.exists() && !tmpOutDir.mkdirs()) {
     53                 System.err.println("failed to create temp dir: "
     54                         + tmpOutDir.getAbsolutePath());
     55                 return false;
     56             }
     57             File tmpDex = new File(tmpOutDir, "classes.dex");
     58 
     59             try {
     60                 List<String> commandLine = new ArrayList<String>(4);
     61                 commandLine.add("--verbose");
     62                 commandLine.add("error");
     63                 commandLine.add("--output-dex");
     64                 commandLine.add(tmpOutDir.getAbsolutePath());
     65                 commandLine.add("--import");
     66                 commandLine.add(inputFile.fileName.getAbsolutePath());
     67 
     68                 ExecuteFile exec = new ExecuteFile(JackBuildDalvikSuite.JACK,
     69                     commandLine.toArray(new String[commandLine.size()]));
     70                 exec.setErr(System.err);
     71                 exec.setOut(System.out);
     72                 if (!exec.run()) {
     73                   return false;
     74                 }
     75 
     76                 JarBuildStep jarStep = new JarBuildStep(
     77                     new BuildFile(tmpDex),
     78                     "classes.dex",
     79                     outputFile,
     80                     /* deleteInputFileAfterBuild = */ true);
     81                 if (!jarStep.build()) {
     82                   throw new IOException("Failed to make jar: " + outputFile.getPath());
     83                 }
     84                 if (deleteInputFileAfterBuild) {
     85                     inputFile.fileName.delete();
     86                 }
     87                 return true;
     88             } catch (Throwable ex) {
     89                 System.err.println("exception while dexing "
     90                         + inputFile.fileName.getAbsolutePath() + " to "
     91                         + outputFile.fileName.getAbsolutePath());
     92                 ex.printStackTrace();
     93             } finally {
     94               tmpDex.delete();
     95               tmpOutDir.delete();
     96             }
     97         }
     98         return false;
     99     }
    100 
    101     @Override
    102     public int hashCode() {
    103         return inputFile.hashCode() ^ outputFile.hashCode();
    104     }
    105 
    106     @Override
    107     public boolean equals(Object obj) {
    108         if (super.equals(obj)) {
    109             JackDexBuildStep other = (JackDexBuildStep) obj;
    110 
    111             return inputFile.equals(other.inputFile)
    112                     && outputFile.equals(other.outputFile);
    113         }
    114         return false;
    115     }
    116 
    117 
    118 }
    119