org.aysada.licensescollector.dependencies.impl.GitCodeBaseProvider.java Source code

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Here is the source code for org.aysada.licensescollector.dependencies.impl.GitCodeBaseProvider.java

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/*******************************************************************************
 * Copyright (c) 2017 Karsten Panier and others.
 * 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:
 * Karsten Panier - initial API and implementation
 *******************************************************************************/
package org.aysada.licensescollector.dependencies.impl;

import java.io.File;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;

import javax.inject.Inject;

import org.aysada.licensescollector.dependencies.CodeBaseProvider;
import org.aysada.licensescollector.helper.TempDirectoryHelper;
import org.eclipse.jgit.api.Git;
import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.lib.Repository;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class GitCodeBaseProvider implements CodeBaseProvider {

    private static final Logger LOGGER = LoggerFactory.getLogger(GitCodeBaseProvider.class);

    @Inject
    private TempDirectoryHelper tempDirectoryHelper;

    public File getLocalRepositoryRoot(String remoteUrl) {
        try {
            File prjWs = getLocalWSFor(remoteUrl);
            if (prjWs.exists()) {
                Repository repo = Git.open(prjWs).getRepository();
                Git git = new Git(repo);
                git.fetch().call();
                git.close();
                LOGGER.info("Lcoal git repo for {} updated.", remoteUrl);
                return repo.getDirectory();
            } else {
                prjWs.mkdir();
                Git localRepo = Git.cloneRepository().setDirectory(prjWs).setURI(remoteUrl)
                        .setCloneAllBranches(false).call();
                File directory = localRepo.getRepository().getDirectory();
                localRepo.close();
                LOGGER.info("Cloned lcoal git repo for {}.", remoteUrl);
                return directory;
            }
        } catch (IOException | GitAPIException e) {
            LOGGER.error("Error working with git.", e);
        }
        return null;
    }

    protected File getLocalWSFor(String remoteUrl) {
        try {
            String encode = URLEncoder.encode(remoteUrl, "UTF-8");
            return new File(tempDirectoryHelper.getTempDirectory(), encode);
        } catch (UnsupportedEncodingException e) {
            LOGGER.error("Can't encode.", e);
        }
        return null;
    }

}