001/* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, 013 * software distributed under the License is distributed on an 014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 015 * KIND, either express or implied. See the License for the 016 * specific language governing permissions and limitations 017 * under the License. 018 */ 019package org.apache.maven.scm.provider.git.jgit.command.blame; 020 021import java.io.File; 022import java.util.ArrayList; 023import java.util.List; 024 025import org.apache.maven.scm.ScmException; 026import org.apache.maven.scm.ScmFileSet; 027import org.apache.maven.scm.command.blame.AbstractBlameCommand; 028import org.apache.maven.scm.command.blame.BlameLine; 029import org.apache.maven.scm.command.blame.BlameScmResult; 030import org.apache.maven.scm.provider.ScmProviderRepository; 031import org.apache.maven.scm.provider.git.command.GitCommand; 032import org.apache.maven.scm.provider.git.jgit.command.JGitUtils; 033import org.eclipse.jgit.api.Git; 034import org.eclipse.jgit.blame.BlameResult; 035 036/** 037 * @author Dominik Bartholdi (imod) 038 * @since 1.9 039 */ 040public class JGitBlameCommand extends AbstractBlameCommand implements GitCommand { 041 042 @Override 043 public BlameScmResult executeBlameCommand(ScmProviderRepository repo, ScmFileSet workingDirectory, String filename) 044 throws ScmException { 045 046 Git git = null; 047 File basedir = workingDirectory.getBasedir(); 048 try { 049 git = JGitUtils.openRepo(basedir); 050 BlameResult blameResult = git.blame().setFilePath(filename).call(); 051 052 List<BlameLine> lines = new ArrayList<>(); 053 054 int i = 0; 055 while ((i = blameResult.computeNext()) != -1) { 056 lines.add(new BlameLine( 057 blameResult.getSourceAuthor(i).getWhen(), 058 blameResult.getSourceCommit(i).getName(), 059 blameResult.getSourceAuthor(i).getName(), 060 blameResult.getSourceCommitter(i).getName())); 061 } 062 063 return new BlameScmResult("JGit blame", lines); 064 } catch (Exception e) { 065 throw new ScmException("JGit blame failure!", e); 066 } finally { 067 JGitUtils.closeRepo(git); 068 } 069 } 070}