Example usage for org.eclipse.jgit.lib Repository newObjectReader

Introduction

In this page you can find the example usage for org.eclipse.jgit.lib Repository newObjectReader.

Prototype

@NonNull
public ObjectReader newObjectReader() 

Source Link

Document

Create a new reader to read objects from #getObjectDatabase() .

Usage

From source file:com.searchcode.app.jobs.IndexGitRepoJob.java

private RepositoryChanged updateGitRepository(String repoName, String repoRemoteLocation, String repoUserName,
        String repoPassword, String repoLocations, String branch, boolean useCredentials) {
    boolean changed = false;
    List<String> changedFiles = new ArrayList<>();
    List<String> deletedFiles = new ArrayList<>();
    Singleton.getLogger().info("Attempting to pull latest from " + repoRemoteLocation + " for " + repoName);

    try {/*from  w  ww  . ja v a2 s .c  o  m*/
        Repository localRepository = new FileRepository(new File(repoLocations + "/" + repoName + "/.git"));

        Ref head = localRepository.getRef("HEAD");

        Git git = new Git(localRepository);
        git.reset();
        git.clean();

        PullCommand pullCmd = git.pull();

        if (useCredentials) {
            pullCmd.setCredentialsProvider(new UsernamePasswordCredentialsProvider(repoUserName, repoPassword));
        }

        pullCmd.call();
        Ref newHEAD = localRepository.getRef("HEAD");

        if (!head.toString().equals(newHEAD.toString())) {
            changed = true;

            // Get the differences between the the heads which we updated at
            // and use these to just update the differences between them
            ObjectId oldHead = localRepository.resolve(head.getObjectId().getName() + "^{tree}");
            ObjectId newHead = localRepository.resolve(newHEAD.getObjectId().getName() + "^{tree}");

            ObjectReader reader = localRepository.newObjectReader();

            CanonicalTreeParser oldTreeIter = new CanonicalTreeParser();
            oldTreeIter.reset(reader, oldHead);

            CanonicalTreeParser newTreeIter = new CanonicalTreeParser();
            newTreeIter.reset(reader, newHead);

            List<DiffEntry> entries = git.diff().setNewTree(newTreeIter).setOldTree(oldTreeIter).call();

            for (DiffEntry entry : entries) {
                if ("DELETE".equals(entry.getChangeType().name())) {
                    deletedFiles.add(FilenameUtils.separatorsToUnix(entry.getOldPath()));
                } else {
                    changedFiles.add(FilenameUtils.separatorsToUnix(entry.getNewPath()));
                }
            }
        }

    } catch (IOException | GitAPIException | InvalidPathException ex) {
        changed = false;
        Singleton.getLogger().warning("ERROR - caught a " + ex.getClass() + " in " + this.getClass()
                + "\n with message: " + ex.getMessage());
    }

    return new RepositoryChanged(changed, changedFiles, deletedFiles);
}

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From source file:com.searchcode.app.jobs.repository.IndexGitHistoryJob.java

public void getRevisionChanges(Repository localRepository, Git git, GitChangeSet oldRevison,
        GitChangeSet newRevision) throws IOException, GitAPIException {
    ObjectId oldHead = localRepository.resolve(oldRevison.getRevision() + "^{tree}");
    ObjectId newHead = localRepository.resolve(newRevision.getRevision() + "^{tree}");

    ObjectReader reader = localRepository.newObjectReader();

    CanonicalTreeParser oldTreeIter = new CanonicalTreeParser();
    oldTreeIter.reset(reader, oldHead);//from w w w.jav a  2s.  c om

    CanonicalTreeParser newTreeIter = new CanonicalTreeParser();
    newTreeIter.reset(reader, newHead);

    List<DiffEntry> entries = git.diff().setNewTree(newTreeIter).setOldTree(oldTreeIter).call();

    GitService gs = new GitService();
    SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");

    for (DiffEntry entry : entries) {
        if ("DELETE".equals(entry.getChangeType().name())) {
            System.out.println("DEL " + entry.getOldPath());

            String contents = gs.fetchFileRevision(localRepository.getWorkTree().toString() + "/.git",
                    oldRevison.getRevision(), entry.getOldPath());

            CodeIndexDocument cd = new CodeIndexDocument(entry.getNewPath(), "thumbor", entry.getOldPath(),
                    entry.getOldPath(), entry.getOldPath(), "md5hash", "Java", contents.split("\\r?\\n").length,
                    contents, "", oldRevison.getAuthor());
            cd.setRevision(oldRevison.getRevision());
            cd.setYearMonthDay(sdf.format(oldRevison.getExpiry()));
            cd.setYearMonth(cd.getYearMonthDay().substring(0, 6));
            cd.setYear(cd.getYearMonthDay().substring(0, 4));
            cd.setMessage(oldRevison.getMessage());
            cd.setDeleted("TRUE");
            Singleton.getCodeIndexer().indexTimeDocument(cd);
        } else {
            System.out.println("ADD " + entry.getNewPath());
            String contents = gs.fetchFileRevision(localRepository.getWorkTree().toString() + "/.git",
                    newRevision.getRevision(), entry.getNewPath());

            CodeIndexDocument cd = new CodeIndexDocument(entry.getNewPath(), "thumbor", entry.getNewPath(),
                    entry.getNewPath(), entry.getNewPath(), "md5hash", "Java", contents.split("\\r?\\n").length,
                    contents, "", newRevision.getAuthor());
            cd.setRevision(newRevision.getRevision());
            cd.setYearMonthDay(sdf.format(oldRevison.getExpiry()));
            cd.setYearMonth(cd.getYearMonthDay().substring(0, 6));
            cd.setYear(cd.getYearMonthDay().substring(0, 4));
            cd.setMessage(newRevision.getMessage());
            cd.setDeleted("FALSE");
            Singleton.getCodeIndexer().indexTimeDocument(cd);
        }
    }
}

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From source file:com.searchcode.app.jobs.repository.IndexGitRepoJob.java

License:Open Source License

/**
 * Update a git repository and return if it has changed and the differences
 *///from   ww  w  .j a v  a2s. c o  m
public RepositoryChanged updateGitRepository(String repoName, String repoRemoteLocation, String repoUserName,
        String repoPassword, String repoLocations, String branch, boolean useCredentials) {
    boolean changed = false;
    List<String> changedFiles = new ArrayList<>();
    List<String> deletedFiles = new ArrayList<>();
    Singleton.getLogger().info("Attempting to pull latest from " + repoRemoteLocation + " for " + repoName);

    Repository localRepository = null;
    Git git = null;

    try {
        localRepository = new FileRepository(new File(repoLocations + "/" + repoName + "/.git"));

        Ref head = localRepository.getRef("HEAD");
        git = new Git(localRepository);

        git.reset();
        git.clean();

        PullCommand pullCmd = git.pull();

        if (useCredentials) {
            pullCmd.setCredentialsProvider(new UsernamePasswordCredentialsProvider(repoUserName, repoPassword));
        }

        pullCmd.call();
        Ref newHEAD = localRepository.getRef("HEAD");

        if (!head.toString().equals(newHEAD.toString())) {
            changed = true;

            // Get the differences between the the heads which we updated at
            // and use these to just update the differences between them
            ObjectId oldHead = localRepository.resolve(head.getObjectId().getName() + "^{tree}");
            ObjectId newHead = localRepository.resolve(newHEAD.getObjectId().getName() + "^{tree}");

            ObjectReader reader = localRepository.newObjectReader();

            CanonicalTreeParser oldTreeIter = new CanonicalTreeParser();
            oldTreeIter.reset(reader, oldHead);

            CanonicalTreeParser newTreeIter = new CanonicalTreeParser();
            newTreeIter.reset(reader, newHead);

            List<DiffEntry> entries = git.diff().setNewTree(newTreeIter).setOldTree(oldTreeIter).call();

            for (DiffEntry entry : entries) {
                if ("DELETE".equals(entry.getChangeType().name())) {
                    deletedFiles.add(FilenameUtils.separatorsToUnix(entry.getOldPath()));
                } else {
                    changedFiles.add(FilenameUtils.separatorsToUnix(entry.getNewPath()));
                }
            }
        }

    } catch (IOException | GitAPIException | InvalidPathException ex) {
        changed = false;
        Singleton.getLogger().warning("ERROR - caught a " + ex.getClass() + " in " + this.getClass()
                + " updateGitRepository for " + repoName + "\n with message: " + ex.getMessage());
    } finally {
        Singleton.getHelpers().closeQuietly(localRepository);
        Singleton.getHelpers().closeQuietly(git);
    }

    return new RepositoryChanged(changed, changedFiles, deletedFiles);
}

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From source file:com.searchcode.app.service.GitService.java

/**
 * Given a repository location, revision and file path will retrieve that files contents. N.B. it returns the whole
 * file so you MAY end up running into serious memory issues, and should be aware of this
 *//*w w  w.  ja v  a  2  s.  co  m*/
public String fetchFileRevision(String repoLocation, String revision, String filePath)
        throws MissingObjectException, IncorrectObjectTypeException, IOException {
    Repository localRepository = new FileRepository(new File(repoLocation));

    ObjectId id = localRepository.resolve(revision);
    ObjectReader reader = localRepository.newObjectReader();

    try {
        RevWalk walk = new RevWalk(reader);
        RevCommit commit = walk.parseCommit(id);
        RevTree tree = commit.getTree();
        TreeWalk treewalk = TreeWalk.forPath(reader, filePath, tree);

        if (treewalk != null) {
            byte[] data = reader.open(treewalk.getObjectId(0)).getBytes();
            return new String(data, "utf-8");
        } else {
            return "";
        }
    } finally {
        reader.close();
    }
}

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From source file:com.tasktop.c2c.server.scm.service.GitBrowseUtil.java

License:Open Source License

public static Commit resolveCommit(Repository r, String commitId) throws IOException {

    ObjectId oid = null;/*from   w ww  .jav  a 2s  . com*/
    Commit commit = new Commit();

    if (commitId.length() < 40) {
        ObjectReader or = r.newObjectReader();
        try {
            AbbreviatedObjectId aid = AbbreviatedObjectId.fromString(commitId);

            Collection<ObjectId> oids = or.resolve(aid);

            if (oids == null || oids.size() == 0) {
                commit.setSha("nex");
                return commit;
            } else if (oids.size() > 1) {
                commit.setSha("ambigous");
                return commit;
            } else {
                oid = oids.iterator().next();
            }
        } finally {
            or.release();
        }
    } else {
        oid = ObjectId.fromString(commitId);
    }

    RevWalk rw = new RevWalk(r);
    try {
        RevCommit rc = rw.parseCommit(oid);
        return GitDomain.createCommit(rc);
    } catch (MissingObjectException ex) {
        commit.setSha("nex");
        return commit;
    } catch (IncorrectObjectTypeException ex) {
        commit.setSha("nex");
        return commit;
    }

}

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From source file:com.tasktop.c2c.server.scm.service.GitServiceBean.java

License:Open Source License

private static AbstractTreeIterator getTreeIterator(final Repository repo, final RevTree tree)
        throws IOException {
    final CanonicalTreeParser treeParser = new CanonicalTreeParser();
    if (tree != null) {
        treeParser.reset(repo.newObjectReader(), tree);
    }// w  ww  . j  a v  a  2  s  .  co m
    return treeParser;
}

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From source file:de.fkoeberle.autocommit.git.FileSetDeltaBuilder.java

License:Open Source License

FileSetDeltaBuilder(Repository repository) {
    this(repository.newObjectReader());
}

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From source file:de.ks.blogging.grav.pages.RepositorySupport.java

License:Apache License

private static AbstractTreeIterator prepareTreeParser(Repository repository, String objectId)
        throws IOException, IncorrectObjectTypeException {
    RevWalk walk = new RevWalk(repository);
    ObjectId resolve = repository.resolve(objectId);
    RevCommit commit = walk.parseCommit(resolve);
    RevTree tree = walk.parseTree(commit.getTree().getId());

    CanonicalTreeParser oldTreeParser = new CanonicalTreeParser();
    try (ObjectReader oldReader = repository.newObjectReader()) {
        oldTreeParser.reset(oldReader, tree.getId());
    }//from   www .  j a va 2 s .  c om

    walk.dispose();
    return oldTreeParser;
}

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From source file:elegit.DiffHelper.java

License:Open Source License

private static AbstractTreeIterator prepareTreeParser(Repository repository, String objectId)
        throws IOException {
    // from the commit we can build the tree which allows us to construct the TreeParser
    try (RevWalk walk = new RevWalk(repository)) {
        RevCommit commit = walk.parseCommit(ObjectId.fromString(objectId));
        RevTree tree = walk.parseTree(commit.getTree().getId());

        CanonicalTreeParser oldTreeParser = new CanonicalTreeParser();
        try (ObjectReader oldReader = repository.newObjectReader()) {
            oldTreeParser.reset(oldReader, tree.getId());
        }/*from  w w w  . j  a va 2  s  .c o  m*/

        walk.dispose();
        return oldTreeParser;
    }
}

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From source file:facade.GitFacade.java

private static AbstractTreeIterator prepareTreeParser(Repository repository, String commitId)
        throws IOException {
    RevWalk walk = new RevWalk(repository);
    RevCommit commit = walk.parseCommit(ObjectId.fromString(commitId));
    RevTree tree = walk.parseTree(commit.getTree().getId());

    CanonicalTreeParser treeParser = new CanonicalTreeParser();
    ObjectReader reader = repository.newObjectReader();
    treeParser.reset(reader, tree.getId());

    walk.dispose();/* ww  w . j a  v  a 2s .co  m*/
    return treeParser;
}

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