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/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.ant;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.Task;
import org.apache.tools.ant.taskdefs.ExecTask;
import org.apache.tools.ant.types.Path;
import java.io.File;
public class ZipAlignTask extends Task {
private String mExecutable;
private String mInput;
private String mOutput;
private int mAlign = 4;
private boolean mVerbose = false;
/**
* Sets the value of the "executable" attribute.
* @param executable the value.
*/
public void setExecutable(Path executable) {
mExecutable = TaskHelper.checkSinglePath("executable", executable);
}
public void setInput(Path inputPath) {
mInput = TaskHelper.checkSinglePath("input", inputPath);
}
public void setOutput(Path outputPath) {
mOutput = TaskHelper.checkSinglePath("output", outputPath);
}
public void setAlign(int align) {
mAlign = align;
}
public void setVerbose(boolean verbose) {
mVerbose = verbose;
}
@Override
public void execute() throws BuildException {
if (mExecutable == null) {
throw new BuildException("Missing attribute executable");
}
if (mInput == null) {
throw new BuildException("Missing attribute input");
}
if (mOutput == null) {
throw new BuildException("Missing attribute output");
}
// check if there's a need for the task to run.
File outputFile = new File(mOutput);
if (outputFile.isFile()) {
File inputFile = new File(mInput);
if (outputFile.lastModified() >= inputFile.lastModified()) {
System.out.println("No changes. No need to run zip-align on the apk.");
return;
}
}
System.out.println("Running zip align on final apk...");
doZipAlign();
}
private void doZipAlign() {
ExecTask task = new ExecTask();
task.setExecutable(mExecutable);
task.setFailonerror(true);
task.setProject(getProject());
task.setOwningTarget(getOwningTarget());
task.setTaskName("zip-align");
// force overwrite of existing output file
task.createArg().setValue("-f");
// verbose flag
if (mVerbose) {
task.createArg().setValue("-v");
}
// align value
task.createArg().setValue(Integer.toString(mAlign));
// input
task.createArg().setValue(mInput);
// output
task.createArg().setValue(mOutput);
// execute
task.execute();
}
}
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