/*
* Copyright (C) 2013 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.build.gradle.internal.tasks;
import com.google.common.base.Charsets;
import com.google.common.io.Files;
import org.gradle.api.tasks.InputFiles;
import org.gradle.api.tasks.OutputFile;
import org.gradle.api.tasks.TaskAction;
import java.io.File;
import java.io.IOException;
import java.util.Set;
/**
* Task to merge files. This appends all the files together into an output file.
*/
public class MergeFileTask extends DefaultAndroidTask {
private Set<File> mInputFiles;
private File mOutputFile;
@TaskAction
public void mergeFiles() throws IOException {
Set<File> files = getInputFiles();
File output = getOutputFile();
if (files.size() == 1) {
Files.copy(files.iterator().next(), output);
return;
}
// first delete the current file
output.delete();
// no input? done.
if (files.isEmpty()) {
return;
}
// otherwise put the all the files together
for (File file : files) {
String content = Files.toString(file, Charsets.UTF_8);
Files.append(content, output, Charsets.UTF_8);
Files.append("\n", output, Charsets.UTF_8);
}
}
@InputFiles
public Set<File> getInputFiles() {
return mInputFiles;
}
public void setInputFiles(Set<File> inputFiles) {
mInputFiles = inputFiles;
}
@OutputFile
public File getOutputFile() {
return mOutputFile;
}
public void setOutputFile(File outputFile) {
mOutputFile = outputFile;
}
}