1/******************************************************************************* 2 * Copyright (c) 2009, 2017 Mountainminds GmbH & Co. KG and Contributors 3 * All rights reserved. This program and the accompanying materials 4 * are made available under the terms of the Eclipse Public License v1.0 5 * which accompanies this distribution, and is available at 6 * http://www.eclipse.org/legal/epl-v10.html 7 * 8 * Contributors: 9 * Marc R. Hoffmann - initial API and implementation 10 * 11 *******************************************************************************/ 12package org.jacoco.cli.internal.commands; 13 14import java.io.File; 15import java.io.IOException; 16import java.io.PrintWriter; 17import java.util.ArrayList; 18import java.util.List; 19 20import org.jacoco.cli.internal.Command; 21import org.jacoco.core.tools.ExecFileLoader; 22import org.kohsuke.args4j.Argument; 23import org.kohsuke.args4j.Option; 24 25/** 26 * The <code>merge</code> command. 27 */ 28public class Merge extends Command { 29 30 @Argument(usage = "list of JaCoCo *.exec files to read", metaVar = "<execfiles>") 31 List<File> execfiles = new ArrayList<File>(); 32 33 @Option(name = "-destfile", usage = "file to write merged execution data to", metaVar = "<path>", required = true) 34 File destfile; 35 36 @Override 37 public String description() { 38 return "Merges multiple exec files into a new one."; 39 } 40 41 @Override 42 public int execute(final PrintWriter out, final PrintWriter err) 43 throws IOException { 44 final ExecFileLoader loader = loadExecutionData(out); 45 out.printf("[INFO] Writing execution data to %s.%n", 46 destfile.getAbsolutePath()); 47 loader.save(destfile, true); 48 return 0; 49 } 50 51 private ExecFileLoader loadExecutionData(final PrintWriter out) 52 throws IOException { 53 final ExecFileLoader loader = new ExecFileLoader(); 54 for (final File file : execfiles) { 55 out.printf("[INFO] Loading execution data file %s.%n", 56 file.getAbsolutePath()); 57 loader.load(file); 58 } 59 return loader; 60 } 61 62} 63