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 
JackDexBuildStep(BuildFile inputFile, BuildFile outputFile, boolean deleteInputFileAfterBuild)28     JackDexBuildStep(BuildFile inputFile, BuildFile outputFile,
29             boolean deleteInputFileAfterBuild) {
30         super(inputFile, outputFile);
31         this.deleteInputFileAfterBuild = deleteInputFileAfterBuild;
32     }
33 
34     @Override
build()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
hashCode()102     public int hashCode() {
103         return inputFile.hashCode() ^ outputFile.hashCode();
104     }
105 
106     @Override
equals(Object obj)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