| /******************************************************************************* |
| * Copyright (c) 2009, 2019 Mountainminds GmbH & Co. KG and Contributors |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Mads Mohr Christensen - implementation of MergeMojo |
| * |
| *******************************************************************************/ |
| package org.jacoco.maven; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.List; |
| |
| import org.apache.maven.plugin.MojoExecutionException; |
| import org.apache.maven.plugin.MojoFailureException; |
| import org.apache.maven.plugins.annotations.LifecyclePhase; |
| import org.apache.maven.plugins.annotations.Mojo; |
| import org.apache.maven.plugins.annotations.Parameter; |
| import org.apache.maven.shared.model.fileset.FileSet; |
| import org.apache.maven.shared.model.fileset.util.FileSetManager; |
| import org.jacoco.core.tools.ExecFileLoader; |
| |
| /** |
| * Mojo for merging a set of execution data files (*.exec) into a single file |
| * |
| * @since 0.6.4 |
| */ |
| @Mojo(name = "merge", defaultPhase = LifecyclePhase.GENERATE_RESOURCES, threadSafe = true) |
| public class MergeMojo extends AbstractJacocoMojo { |
| |
| private static final String MSG_SKIPPING = "Skipping JaCoCo merge execution due to missing execution data files"; |
| |
| /** |
| * Path to the output file for execution data. |
| */ |
| @Parameter(property = "jacoco.destFile", defaultValue = "${project.build.directory}/jacoco.exec") |
| private File destFile; |
| |
| /** |
| * This mojo accepts any number of execution data file sets. |
| * |
| * <pre> |
| * <code> |
| * <fileSets> |
| * <fileSet> |
| * <directory>${project.build.directory}</directory> |
| * <includes> |
| * <include>*.exec</include> |
| * </includes> |
| * </fileSet> |
| * </fileSets> |
| * </code> |
| * </pre> |
| */ |
| @Parameter(required = true) |
| private List<FileSet> fileSets; |
| |
| @Override |
| protected void executeMojo() throws MojoExecutionException, |
| MojoFailureException { |
| if (!canMergeReports()) { |
| return; |
| } |
| executeMerge(); |
| } |
| |
| private boolean canMergeReports() { |
| if (fileSets == null || fileSets.isEmpty()) { |
| getLog().info(MSG_SKIPPING); |
| return false; |
| } |
| return true; |
| } |
| |
| private void executeMerge() throws MojoExecutionException { |
| final ExecFileLoader loader = new ExecFileLoader(); |
| |
| load(loader); |
| save(loader); |
| } |
| |
| private void load(final ExecFileLoader loader) |
| throws MojoExecutionException { |
| final FileSetManager fileSetManager = new FileSetManager(getLog()); |
| for (final FileSet fileSet : fileSets) { |
| for (final String includedFilename : fileSetManager |
| .getIncludedFiles(fileSet)) { |
| final File inputFile = new File(fileSet.getDirectory(), |
| includedFilename); |
| if (inputFile.isDirectory()) { |
| continue; |
| } |
| try { |
| getLog().info( |
| "Loading execution data file " |
| + inputFile.getAbsolutePath()); |
| loader.load(inputFile); |
| } catch (final IOException e) { |
| throw new MojoExecutionException("Unable to read " |
| + inputFile.getAbsolutePath(), e); |
| } |
| } |
| } |
| } |
| |
| private void save(final ExecFileLoader loader) |
| throws MojoExecutionException { |
| if (loader.getExecutionDataStore().getContents().isEmpty()) { |
| getLog().info(MSG_SKIPPING); |
| return; |
| } |
| getLog().info( |
| "Writing merged execution data to " |
| + destFile.getAbsolutePath()); |
| try { |
| loader.save(destFile, false); |
| } catch (final IOException e) { |
| throw new MojoExecutionException("Unable to write merged file " |
| + destFile.getAbsolutePath(), e); |
| } |
| } |
| |
| } |