org.eclipse.osee.ote.version.git.GitVersions.java Source code

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Here is the source code for org.eclipse.osee.ote.version.git.GitVersions.java

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/*******************************************************************************
 * Copyright (c) 2013 Boeing.
 * 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:
 *     Boeing - initial API and implementation
 *******************************************************************************/
package org.eclipse.osee.ote.version.git;

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;

import org.eclipse.jgit.api.Git;
import org.eclipse.jgit.api.LogCommand;
import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.NoHeadException;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.revwalk.RevCommit;

public class GitVersions extends GitVersionBase {

    private List<File> files;

    public GitVersions(List<File> files) {
        this.files = files;
    }

    public Map<File, RevCommit> getLastCommits() {
        Map<File, RevCommit> commits = new HashMap<File, RevCommit>();
        Map<File, List<File>> gitToFiles = new HashMap<File, List<File>>();
        for (File file : files) {
            if (!file.exists()) {
                continue;
            }
            File gitFolder = findGitDirUp(file);
            if (gitFolder == null) {
                continue;
            }
            List<File> gitfiles = gitToFiles.get(gitFolder);
            if (gitfiles == null) {
                gitfiles = new ArrayList<File>();
                gitToFiles.put(gitFolder, gitfiles);
            }
            gitfiles.add(file);
        }
        for (Entry<File, List<File>> entry : gitToFiles.entrySet()) {
            try {
                Repository repository = buildRepository(entry.getKey());
                Git git = new Git(repository);

                for (File gitfile : entry.getValue()) {
                    LogCommand log = git.log();
                    log.setMaxCount(1);
                    String pathFilter = getPathFilterFromFullPathAndGitFolder(gitfile, entry.getKey());
                    log.addPath(pathFilter);
                    Iterable<RevCommit> iterable = log.call();
                    Iterator<RevCommit> it = iterable.iterator();
                    if (it.hasNext()) {
                        RevCommit commit = it.next();
                        commits.put(gitfile, commit);
                    }
                }
            } catch (IOException e) {
                e.printStackTrace();
            } catch (NoHeadException e) {
                e.printStackTrace();
            } catch (GitAPIException e) {
                e.printStackTrace();
            }
        }
        return commits;
    }
}