org.seedstack.hub.infra.vcs.GitFetchService.java Source code

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Here is the source code for org.seedstack.hub.infra.vcs.GitFetchService.java

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/**
 * Copyright (c) 2015-2016, The SeedStack authors <http://seedstack.org>
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */
package org.seedstack.hub.infra.vcs;

import org.eclipse.jgit.api.CreateBranchCommand;
import org.eclipse.jgit.api.Git;
import org.seedstack.hub.domain.services.fetch.FetchException;
import org.seedstack.seed.Logging;
import org.slf4j.Logger;

import javax.inject.Named;
import java.io.File;
import java.net.URL;

@Named("git")
class GitFetchService extends AbstractFetchService {
    @Logging
    private Logger logger;

    protected void doFetch(URL remote, File target) {
        logger.debug("Cloning Git remote {} into directory {}", remote.toExternalForm(), target.getAbsolutePath());

        try (Git localRepository = Git.cloneRepository().setURI(stripBranchName(remote)).setDirectory(target)
                .call()) {
            String branchName = getBranchName(remote);

            logger.debug("Checking out {} branch in directory {}", branchName, target.getAbsolutePath());

            if (localRepository.getRepository().getRef(branchName) == null) {
                localRepository.branchCreate().setName(branchName)
                        .setUpstreamMode(CreateBranchCommand.SetupUpstreamMode.TRACK)
                        .setStartPoint("origin/" + branchName).call();
            }

            localRepository.checkout().setName(branchName).call();
        } catch (Exception e) {
            throw new FetchException("Unable to fetch Git remote " + remote.toExternalForm(), e);
        }
    }

    private String stripBranchName(URL remote) {
        return remote.getProtocol() + "://" + remote.getHost()
                + (remote.getPort() == -1 ? "" : ":" + remote.getPort()) + remote.getPath();
    }

    private String getBranchName(URL remote) {
        String ref = remote.getRef();
        return ref == null || ref.isEmpty() ? "master" : ref;
    }
}