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

Introduction

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

Prototype

@Nullable
public ObjectId resolve(String revstr)
        throws AmbiguousObjectException, IncorrectObjectTypeException, RevisionSyntaxException, IOException 

Source Link

Document

Parse a git revision string and return an object id.

Usage

From source file:playRepository.GitRepository.java

License:Apache License

public static String deleteFromBranch(PullRequest pullRequest) {
    if (!canDeleteFromBranch(pullRequest)) {
        return null;
    }/*from  w  w w  .  j a va 2  s .  c  om*/

    RevWalk revWalk = null;
    String lastCommitId;
    Repository repo = null;
    try {
        repo = buildGitRepository(pullRequest.fromProject);
        ObjectId branch = repo.resolve(pullRequest.fromBranch);
        revWalk = new RevWalk(repo);
        RevCommit commit = revWalk.parseCommit(branch);
        lastCommitId = commit.getName();
        deleteBranch(repo, pullRequest.fromBranch);
        return lastCommitId;
    } catch (Exception e) {
        throw new RuntimeException(e);
    } finally {
        if (revWalk != null) {
            revWalk.release();
        }
        if (repo != null) {
            repo.close();
        }
    }
}

---

From source file:playRepository.GitRepository.java

License:Apache License

public static boolean canRestoreBranch(PullRequest pullRequest) {
    Repository repo = null;
    try {/*from  w  ww.  j av a2s .  c o m*/
        repo = buildGitRepository(pullRequest.fromProject);
        ObjectId resolve = repo.resolve(pullRequest.fromBranch);
        if (resolve == null && pullRequest.lastCommitId != null) {
            return true;
        }
    } catch (Exception e) {
        throw new RuntimeException(e);
    } finally {
        if (repo != null) {
            repo.close();
        }
    }

    return false;
}

---

From source file:playRepository.GitRepository.java

License:Apache License

public static List<GitCommit> diffCommits(PullRequest pullRequest) {
    List<GitCommit> commits = new ArrayList<>();
    if (pullRequest.mergedCommitIdFrom == null || pullRequest.mergedCommitIdTo == null) {
        return commits;
    }//from   w  ww  .  j av  a2 s.  c o  m

    Repository repo;
    try {
        if (pullRequest.isClosed()) {
            repo = buildGitRepository(pullRequest.toProject);
        } else {
            repo = buildGitRepository(pullRequest.fromProject);
        }

        ObjectId untilId = repo.resolve(pullRequest.mergedCommitIdTo);
        if (untilId == null) {
            return commits;
        }
        ObjectId sinceId = repo.resolve(pullRequest.mergedCommitIdFrom);
        if (sinceId == null) {
            return commits;
        }

        Iterable<RevCommit> logIterator = new Git(repo).log().addRange(sinceId, untilId).call();
        for (RevCommit commit : logIterator) {
            commits.add(new GitCommit(commit));
        }

        return commits;
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

---

From source file:playRepository.GitRepository.java

License:Apache License

public static String getPatch(Repository repository, String fromBranch, String toBranch) {
    TreeWalk treeWalk = new TreeWalk(repository);
    RevWalk walk = new RevWalk(repository);
    try {/*from   w w w . j  a v  a  2 s .c  o  m*/
        ObjectId from = repository.resolve(fromBranch);
        ObjectId to = repository.resolve(toBranch);
        RevTree fromTree = walk.parseTree(from);
        RevTree toTree = walk.parseTree(to);

        treeWalk.addTree(toTree);
        treeWalk.addTree(fromTree);

        ByteArrayOutputStream out = new ByteArrayOutputStream();
        DiffFormatter diffFormatter = new DiffFormatter(out);
        diffFormatter.setRepository(repository);
        treeWalk.setRecursive(true);
        diffFormatter.format(DiffEntry.scan(treeWalk));

        return out.toString("UTF-8");
    } catch (Exception e) {
        throw new RuntimeException(e);
    } finally {
        walk.dispose();
    }
}

---

From source file:playRepository.GitRepository.java

License:Apache License

public static String getPatch(PullRequest pullRequest) {
    if (pullRequest.mergedCommitIdFrom == null || pullRequest.mergedCommitIdTo == null) {
        return "";
    }//from w  w  w.  j  av a 2 s  .c  o m

    Repository repo;
    try {
        repo = buildGitRepository(pullRequest.toProject);

        ObjectId untilId = repo.resolve(pullRequest.mergedCommitIdTo);
        if (untilId == null) {
            return "";
        }
        ObjectId sinceId = repo.resolve(pullRequest.mergedCommitIdFrom);
        if (sinceId == null) {
            return "";
        }

        return getPatch(repo, untilId.getName(), sinceId.getName());
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

---

From source file:playRepository.GitRepository.java

License:Apache License

public static List<FileDiff> getDiff(final Repository repositoryA, String revA, Repository repositoryB,
        String revB) throws IOException {
    ObjectId commitA = repositoryA.resolve(revA);
    ObjectId commitB = repositoryB.resolve(revB);

    return getFileDiffs(repositoryA, repositoryB, commitA, commitB);
}

---

From source file:playRepository.GitRepositoryTest.java

License:Apache License

private byte[] getRawFile(Repository repository, String path) throws IOException {
    RevTree tree = new RevWalk(repository).parseTree(repository.resolve(Constants.HEAD));
    TreeWalk treeWalk = TreeWalk.forPath(repository, path, tree);
    if (treeWalk.isSubtree()) {
        return null;
    } else {/*from   w  w  w .  ja  va  2 s  .co m*/
        return repository.open(treeWalk.getObjectId(0)).getBytes();
    }
}

---

From source file:uk.ac.cam.cl.dtg.segue.database.GitDb.java

License:Apache License

/**
 * Will find an object from the git repository if given a sha and a full git path.
 * /*from   w w w  .  j a  va  2 s  .c  o m*/
 * @param sha
 *            - to search for.
 * @param filename
 *            - of the file in git to locate.
 * @return ObjectId which will allow you to access information about the node.
 * @throws IOException
 *             - if we cannot access the repo location.
 * @throws UnsupportedOperationException
 *             - if git does not support the operation requested.
 */
private ObjectId findGitObject(final String sha, final String filename)
        throws IOException, UnsupportedOperationException {
    if (null == sha || null == filename) {
        return null;
    }

    Repository repository = gitHandle.getRepository();

    ObjectId commitId = repository.resolve(sha);

    RevWalk revWalk = new RevWalk(repository);
    RevCommit commit = revWalk.parseCommit(commitId);

    RevTree tree = commit.getTree();

    TreeWalk treeWalk = new TreeWalk(repository);
    treeWalk.addTree(tree);
    treeWalk.setRecursive(true);
    treeWalk.setFilter(PathFilter.create(filename));

    int count = 0;
    ObjectId objectId = null;
    String path = null;
    while (treeWalk.next()) {
        count++;
        if (null == objectId) {
            objectId = treeWalk.getObjectId(0);
            path = treeWalk.getPathString();
        } else if (count > 1) {
            // throw exception if we find that there is more than one that
            // matches the search.
            StringBuilder sb = new StringBuilder();
            sb.append("Multiple results have been found in the git repository for the following search: ");
            sb.append(filename + ".");
            sb.append(" in ");
            sb.append(sha);
            sb.append(" Unable to decide which one to return.");
            throw new UnsupportedOperationException(sb.toString());
        }
    }

    if (null == objectId) {
        return null;
    }

    revWalk.dispose();
    log.debug("Retrieved Commit Id: " + commitId.getName() + " Searching for: " + filename + " found: " + path);
    return objectId;
}

---

From source file:uk.ac.cam.cl.dtg.segue.database.GitDbTest.java

License:Apache License

@Test
public void getTreeWalk_checkThatBlankPathsAreAllowed_noExceptionThrown() throws IOException {

    Git git = EasyMock.createMock(Git.class);

    GitDb db = new GitDb(git);

    try {//from   w ww .  ja  v  a2s . com
        db.getTreeWalk("", "");
        fail("Failed to throw required exception on blank sha.");
    } catch (IllegalArgumentException e) {
        // Exception correctly thrown.
    } catch (Exception e) {
        fail("Wrong type of exception thrown on blank sha");
    }

    try {
        db.getTreeWalk(null, "");
        fail("Failed to throw required exception on null sha.");
    } catch (NullPointerException e) {
        // Exception correctly thrown.
    } catch (Exception e) {
        fail("Wrong type of exception thrown on null sha");
    }

    try {
        db.getTreeWalk("sha", null);
        fail("Failed to throw required exception on null path.");
    } catch (NullPointerException e) {
        // Exception correctly thrown.
    } catch (Exception e) {
        fail("Wrong type of exception thrown on null path");
    }

    Repository repo = EasyMock.createMock(Repository.class);

    EasyMock.expect(git.getRepository()).andReturn(repo);
    EasyMock.expect(repo.resolve("sha")).andReturn(null);

    EasyMock.replay(git);
    EasyMock.replay(repo);

    assertNull(db.getTreeWalk("sha", "")); // Blank path is explicitly allowed. This should not throw an exception. But in this case we've passed an invalid sha, so we should get null back.
}

---

From source file:uk.ac.cam.UROP.twentyfourteen.database.GitDb.java

/**
 * Will find an object from the git repository if given a sha and a full git
 * path./*from  w  w w . j  a  v a 2s.  c  o  m*/
 *
 * @param sha
 * @param filename
 * @return ObjectId which will allow you to access information about the
 *         node.
 */
private ObjectId findGitObject(String sha, String filename) throws IOException, UnsupportedOperationException {
    if (null == sha || null == filename) {
        return null;
    }

    Repository repository = gitHandle.getRepository();

    ObjectId commitId = repository.resolve(sha);

    RevWalk revWalk = new RevWalk(repository);
    RevCommit commit = revWalk.parseCommit(commitId);

    RevTree tree = commit.getTree();

    TreeWalk treeWalk = new TreeWalk(repository);
    treeWalk.addTree(tree);
    treeWalk.setRecursive(true);
    treeWalk.setFilter(PathFilter.create(filename));

    int count = 0;
    ObjectId objectId = null;
    String path = null;
    while (treeWalk.next()) {
        count++;
        if (null == objectId) {
            objectId = treeWalk.getObjectId(0);
            path = treeWalk.getPathString();
        }
        // throw exception if we find that there is more than one that
        // matches the search.
        else if (count > 1) {
            StringBuilder sb = new StringBuilder();
            sb.append("Multiple results have been found in the git repository for the following search: ");
            sb.append(filename + ".");
            sb.append(" in ");
            sb.append(sha);
            sb.append(" Unable to decide which one to return.");
            throw new UnsupportedOperationException(sb.toString());
        }
    }

    if (null == objectId) {
        log.warn("No objects found matching the search criteria (" + sha + "," + filename + ") in Git");
        return null;
    }

    revWalk.dispose();
    log.debug("Retrieved Commit Id: " + commitId.getName() + " Searching for: " + filename + " found: " + path);
    return objectId;
}

---

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