Java Code Examples for org.eclipse.jgit.lib.Repository#findRef()

@Override
public Integer countCommits(Repository repository, String branch) throws Exception {
	RevWalk walk = new RevWalk(repository);
	try {
		Ref ref = repository.findRef(REMOTE_REFS_PREFIX + branch);
		ObjectId objectId = ref.getObjectId();
		RevCommit start = walk.parseCommit(objectId);
		walk.setRevFilter(RevFilter.NO_MERGES);
		return RevWalkUtils.count(walk, start, null);
	} finally {
		walk.dispose();
	}
}
 

private void setupRebaseFlag (Repository repository) throws IOException {
    Ref baseRef = repository.findRef(revision);
    if (baseRef != null && baseRef.getName().startsWith(Constants.R_REMOTES)) {
        StoredConfig config = repository.getConfig();
        String autosetupRebase = config.getString(ConfigConstants.CONFIG_BRANCH_SECTION,
                null, ConfigConstants.CONFIG_KEY_AUTOSETUPREBASE);
        boolean rebase = ConfigConstants.CONFIG_KEY_ALWAYS.equals(autosetupRebase)
                || ConfigConstants.CONFIG_KEY_REMOTE.equals(autosetupRebase);
        if (rebase && !config.getNames(ConfigConstants.CONFIG_BRANCH_SECTION, branchName).isEmpty()) {
            config.setBoolean(ConfigConstants.CONFIG_BRANCH_SECTION, branchName,
                    ConfigConstants.CONFIG_KEY_REBASE, rebase);
            config.save();
        }
    }
}
 

@Override
protected void run () throws GitException {
    Repository repository = getRepository();
    
    try {
        Ref ref = repository.findRef(trackedBranchName);
        if (ref == null) {
            throw new GitException(MessageFormat.format(Utils.getBundle(SetUpstreamBranchCommand.class)
                    .getString("MSG_Error_UpdateTracking_InvalidReference"), trackedBranchName)); //NOI18N)
        }
        String remote = null;
        String branchName = ref.getName();
        StoredConfig config = repository.getConfig();
        if (branchName.startsWith(Constants.R_REMOTES)) {
            String[] elements = branchName.split("/", 4);
            remote = elements[2];
            if (config.getSubsections(ConfigConstants.CONFIG_REMOTE_SECTION).contains(remote)) {
                branchName = Constants.R_HEADS + elements[3];
                setupRebaseFlag(repository);
            } else {
                // remote not yet set
                remote = null;
            }
        }
        if (remote == null) {
            remote = "."; //NOI18N
        }
        config.setString(ConfigConstants.CONFIG_BRANCH_SECTION, localBranchName,
                ConfigConstants.CONFIG_KEY_REMOTE, remote);
        config.setString(ConfigConstants.CONFIG_BRANCH_SECTION, localBranchName,
                ConfigConstants.CONFIG_KEY_MERGE, branchName);
        config.save();
    } catch (IOException ex) {
        throw new GitException(ex);
    }
    ListBranchCommand branchCmd = new ListBranchCommand(repository, getClassFactory(), false, new DelegatingGitProgressMonitor(monitor));
    branchCmd.run();
    Map<String, GitBranch> branches = branchCmd.getBranches();
    branch = branches.get(localBranchName);
}
 

@Override
public int countCommits(Repository repository, String branch) throws Exception {
	RevWalk walk = new RevWalk(repository);
	try {
		Ref ref = repository.findRef(REMOTE_REFS_PREFIX + branch);
		ObjectId objectId = ref.getObjectId();
		RevCommit start = walk.parseCommit(objectId);
		walk.setRevFilter(RevFilter.NO_MERGES);
		return RevWalkUtils.count(walk, start, null);
	} finally {
		walk.dispose();
	}
}
 

@Override
public Iterable<RevCommit> createRevsWalkBetweenTags(Repository repository, String startTag, String endTag)
		throws Exception {
	Ref refFrom = repository.findRef(startTag);
	Ref refTo = repository.findRef(endTag);
	try (Git git = new Git(repository)) {
		List<RevCommit> revCommits = StreamSupport.stream(git.log().addRange(getActualRefObjectId(refFrom), getActualRefObjectId(refTo)).call()
				.spliterator(), false)
		        .filter(r -> r.getParentCount() == 1)
		        .collect(Collectors.toList());
		Collections.reverse(revCommits);
		return revCommits;
	}
}
 

/**
 * Returns actual SHA-1 object by commit reference.
 *
 * @param repo git repository.
 * @param ref string representation of commit reference.
 * @return actual SHA-1 object.
 * @throws IOException if an I/O error occurs.
 */
private static ObjectId getActualRefObjectId(Repository repo, String ref) throws IOException {
    final ObjectId actualObjectId;
    final Ref referenceObj = repo.findRef(ref);
    if (referenceObj == null) {
        actualObjectId = repo.resolve(ref);
    }
    else {
        final Ref repoPeeled = repo.peel(referenceObj);
        actualObjectId = Optional.ofNullable(repoPeeled.getPeeledObjectId())
            .orElse(referenceObj.getObjectId());
    }
    return actualObjectId;
}
 

private void pullFromGit(@NonNull ThemeProperty themeProperty) throws
    IOException, GitAPIException, URISyntaxException {
    Assert.notNull(themeProperty, "Theme property must not be null");

    // Get branch
    String branch = StringUtils.isBlank(themeProperty.getBranch()) ?
        DEFAULT_REMOTE_BRANCH : themeProperty.getBranch();

    Git git = null;

    try {
        git = GitUtils.openOrInit(Paths.get(themeProperty.getThemePath()));

        Repository repository = git.getRepository();

        RevWalk revWalk = new RevWalk(repository);

        Ref ref = repository.findRef(Constants.HEAD);

        Assert.notNull(ref, Constants.HEAD + " ref was not found!");

        RevCommit lastCommit = revWalk.parseCommit(ref.getObjectId());

        // Force to set remote name
        git.remoteRemove().setRemoteName(THEME_PROVIDER_REMOTE_NAME).call();
        RemoteConfig remoteConfig = git.remoteAdd()
            .setName(THEME_PROVIDER_REMOTE_NAME)
            .setUri(new URIish(themeProperty.getRepo()))
            .call();

        // Add all changes
        git.add()
            .addFilepattern(".")
            .call();
        // Commit the changes
        git.commit().setMessage("Commit by halo automatically").call();

        // Check out to specified branch
        if (!StringUtils.equalsIgnoreCase(branch, git.getRepository().getBranch())) {
            boolean present = git.branchList()
                .call()
                .stream()
                .map(Ref::getName)
                .anyMatch(name -> StringUtils.equalsIgnoreCase(name, branch));

            git.checkout()
                .setCreateBranch(true)
                .setForced(!present)
                .setName(branch)
                .call();
        }

        // Pull with rebasing
        PullResult pullResult = git.pull()
            .setRemote(remoteConfig.getName())
            .setRemoteBranchName(branch)
            .setRebase(true)
            .call();

        if (!pullResult.isSuccessful()) {
            log.debug("Rebase result: [{}]", pullResult.getRebaseResult());
            log.debug("Merge result: [{}]", pullResult.getMergeResult());

            throw new ThemeUpdateException("拉取失败！您与主题作者可能同时更改了同一个文件");
        }

        // updated successfully.
        ThemeProperty updatedThemeProperty = getProperty(Paths.get(themeProperty.getThemePath()));

        // Not support current halo version.
        if (StringUtils.isNotEmpty(updatedThemeProperty.getRequire()) && !VersionUtil.compareVersion(HaloConst.HALO_VERSION, updatedThemeProperty.getRequire())) {
            // reset theme version
            git.reset()
                .setMode(ResetCommand.ResetType.HARD)
                .setRef(lastCommit.getName())
                .call();
            throw new ThemeNotSupportException("新版本主题仅支持 Halo " + updatedThemeProperty.getRequire() + " 以上的版本");
        }
    } finally {
        GitUtils.closeQuietly(git);
    }

}