Examples of org.eclipse.jgit.lib.RefUpdate.forceUpdate()

org.eclipse.jgit.lib.RefUpdate.forceUpdate()
Force the ref to take the new value.
This is just a convenient helper for setting the force flag, and as such the merge test is performed. @return the result status of the update. @throws IOException an unexpected IO error occurred while writing changes.

      JGitInternalException, WrongRepositoryStateException {
    Git git = new Git(db);
    git.commit().setMessage("initial commit").call();
    RefUpdate r = db.updateRef("refs/heads/side");
    r.setNewObjectId(db.resolve(Constants.HEAD));
    assertEquals(r.forceUpdate(), RefUpdate.Result.NEW);
    RevCommit second = git.commit().setMessage("second commit").setCommitter(committer).call();
    db.updateRef(Constants.HEAD).link("refs/heads/side");
    RevCommit firstSide = git.commit().setMessage("first side commit").setAuthor(author).call();


    FileWriter wr = new FileWriter(new File(db.getDirectory(),

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    } else
      ref = Constants.R_HEADS + ref;


    RefUpdate u = db.updateRef(ref);
    u.setNewObjectId(obj);
    switch (u.forceUpdate()) {
    case FAST_FORWARD:
    case FORCED:
    case NEW:
    case NO_CHANGE:
      updateServerInfo();

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  public void testListRemote_Dumb_DetachedHEAD() throws Exception {
    Repository src = remoteRepository.getRepository();
    RefUpdate u = src.updateRef(Constants.HEAD, true);
    RevCommit Q = remoteRepository.commit().message("Q").create();
    u.setNewObjectId(Q);
    assertEquals(RefUpdate.Result.FORCED, u.forceUpdate());


    Repository dst = createBareRepository();
    Ref head;
    Transport t = Transport.open(dst, dumbAuthNoneURI);
    try {

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  public void testListRemote_Smart_DetachedHEAD() throws Exception {
    Repository src = remoteRepository.getRepository();
    RefUpdate u = src.updateRef(Constants.HEAD, true);
    RevCommit Q = remoteRepository.commit().message("Q").create();
    u.setNewObjectId(Q);
    assertEquals(RefUpdate.Result.FORCED, u.forceUpdate());


    Repository dst = createBareRepository();
    Ref head;
    Transport t = Transport.open(dst, smartAuthNoneURI);
    try {

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    }


    final Commit commit = db.mapCommit(branch.getObjectId());
    final RefUpdate u = db.updateRef(Constants.HEAD);
    u.setNewObjectId(commit.getCommitId());
    u.forceUpdate();


    final GitIndex index = new GitIndex(db);
    final Tree tree = commit.getTree();
    final WorkDirCheckout co;

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    assertEquals("7f822839a2fe9760f386cbbbcb3f92c5fe81def7", resolve.name());


    RefUpdate lockRef = db.updateRef("HEAD");
    ObjectId newId = ObjectId.fromString("07f822839a2fe9760f386cbbbcb3f92c5fe81def");
    lockRef.setNewObjectId(newId);
    assertEquals(RefUpdate.Result.FORCED, lockRef.forceUpdate());


    assertTrue(new File(db.getDirectory(), "refs/heads/foobar").exists());
    assertEquals(newId, db.resolve("refs/heads/foobar"));


    // Again. The ref already exists

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    // Again. The ref already exists
    RefUpdate lockRef2 = db.updateRef("HEAD");
    ObjectId newId2 = ObjectId.fromString("7f822839a2fe9760f386cbbbcb3f92c5fe81def7");
    lockRef2.setNewObjectId(newId2);
    assertEquals(RefUpdate.Result.FORCED, lockRef2.forceUpdate());


    assertTrue(new File(db.getDirectory(), "refs/heads/foobar").exists());
    assertEquals(newId2, db.resolve("refs/heads/foobar"));
  }

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    // point the previous head (if any) to the new commit


    if (headName.startsWith(Constants.R_REFS)) {
      RefUpdate rup = repo.updateRef(headName);
      rup.setNewObjectId(newHead);
      Result res = rup.forceUpdate();
      switch (res) {
      case FAST_FORWARD:
      case FORCED:
      case NO_CHANGE:
        break;

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      dco.checkout();
      // update the HEAD
      RefUpdate refUpdate = repo.updateRef(Constants.HEAD, true);
      refUpdate.setExpectedOldObjectId(head);
      refUpdate.setNewObjectId(commit);
      Result res = refUpdate.forceUpdate();
      switch (res) {
      case FAST_FORWARD:
      case NO_CHANGE:
      case FORCED:
        break;

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            }
            if (headId != null)
              ru.setExpectedOldObjectId(headId);
            else
              ru.setExpectedOldObjectId(ObjectId.zeroId());
            Result rc = ru.forceUpdate();
            switch (rc) {
            case NEW:
            case FORCED:
            case FAST_FORWARD: {
              setCallable(false);

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