Examples of org.eclipse.jgit.lib.Repository.resolve()

org.eclipse.jgit.lib.Repository.resolve()
Parse a git revision string and return an object id. Combinations of these operators are supported:
- HEAD, MERGE_HEAD, FETCH_HEAD
- SHA-1: a complete or abbreviated SHA-1
- refs/...: a complete reference name
- short-name: a short reference name under {@code refs/heads}, {@code refs/tags}, or {@code refs/remotes} namespace
- tag-NN-gABBREV: output from describe, parsed by treating {@code ABBREV} as an abbreviated SHA-1.
- id^: first parent of commit id, this is the same as {@code id^1}
- id^0: ensure id is a commit
- id^n: n-th parent of commit id
- id~n: n-th historical ancestor of id, by first parent. {@code id~3} is equivalent to {@code id^1^1^1} or {@code id^^^}.
- id:path: Lookup path under tree named by id
- id^{commit}: ensure id is a commit
- id^{tree}: ensure id is a tree
- id^{tag}: ensure id is a tag
- id^{blob}: ensure id is a blob
The following operators are specified by Git conventions, but are not supported by this method:
- ref@{n}: n-th version of ref as given by its reflog
- ref@{time}: value of ref at the designated time
@param revstr A git object references expression @return an ObjectId or null if revstr can't be resolved to any ObjectId @throws AmbiguousObjectException {@code revstr} contains an abbreviated ObjectId and thisrepository contains more than one object which match to the input abbreviation. @throws IncorrectObjectTypeException the id parsed does not meet the type required to finish applying the operators in the expression. @throws RevisionSyntaxException the expression is not supported by this implementation, or does not meet the standard syntax. @throws IOException on serious errors

     */
    public static boolean addCommitProperties(Transformer transformer, File baseDir, int abbrevLen, Log log) {
        try {
            RepositoryBuilder builder = new RepositoryBuilder();
            Repository repository = builder.findGitDir(baseDir).readEnvironment().build();
            ObjectId objectId = repository.resolve(Constants.HEAD);
            if (objectId != null) {
                transformer.setParameter("repository.commit", objectId.getName());
                transformer.setParameter("repository.commit.short", objectId.abbreviate(abbrevLen).name());
                return true;
            } else {

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    if (submoduleRepo == null)
      return zeroid;


    final ObjectId head;
    try {
      head = submoduleRepo.resolve(Constants.HEAD);
    } catch (IOException exception) {
      return zeroid;
    } finally {
      submoduleRepo.close();
    }

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    Repository subRepo = generator.getRepository();
    if (subRepo == null)
      return new SubmoduleStatus(SubmoduleStatusType.UNINITIALIZED, path,
          id);


    ObjectId headId = subRepo.resolve(Constants.HEAD);


    // Report uninitialized if no HEAD commit in submodule repository
    if (headId == null)
      return new SubmoduleStatus(SubmoduleStatusType.UNINITIALIZED, path,
          id, headId);

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                  lastAddedFile = path;
                } else {
                  Repository subRepo = Git.open(
                      new File(repo.getWorkTree(), path))
                      .getRepository();
                  ObjectId subRepoHead = subRepo
                      .resolve(Constants.HEAD);
                  if (subRepoHead != null) {
                    entry.setObjectId(subRepoHead);
                    builder.add(entry);
                    lastAddedFile = path;

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   * @return object id of HEAD reference
   * @throws IOException
   */
  public ObjectId getHead() throws IOException {
    Repository subRepo = getRepository();
    return subRepo != null ? subRepo.resolve(Constants.HEAD) : null;
  }


  /**
   * Get ref that HEAD points to in the current submodule's repository
   *

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    if (submoduleRepo == null)
      return zeroid;


    final ObjectId head;
    try {
      head = submoduleRepo.resolve(Constants.HEAD);
    } catch (IOException exception) {
      return zeroid;
    } finally {
      submoduleRepo.close();
    }

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        return jGitDelegate.getRepository();
    }


    public List<Tag> getTagsOnCommit(String revName) throws GitException, IOException {
        Repository db = getRepository();
        ObjectId commit = db.resolve(revName);
        List<Tag> result = new ArrayList<Tag>();
        if (null != commit) {
            for (final Map.Entry<String, Ref> tag : db.getTags().entrySet()) {
                Ref ref = tag.getValue();
                if (ref.getObjectId().equals(commit)) {

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            gfConfig.setDevelop(context.getDevelop());


            //Creation of HEAD
            walk = new RevWalk(repo);
            ObjectId masterBranch = repo.resolve(Constants.R_HEADS + context.getMaster());
            RevCommit masterCommit = null;


            if (null != masterBranch)
            {
                try

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      rw = new PlotWalk(r);
      if (StringUtils.isEmpty(objectId)) {
        objectId = JGitUtils.getHEADRef(r);
      }


      rw.markStart(rw.lookupCommit(r.resolve(objectId)));


      // default to the items-per-page setting, unless specified
      int maxCommits = settings.getInteger(Keys.web.itemsPerPage, 50);
      int requestedCommits = maxCommits;
      if (!StringUtils.isEmpty(length)) {

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      }
      String ticketPath = toTicketPath(ticket.number);


      TreeWalk treeWalk = null;
      try {
        ObjectId treeId = db.resolve(BRANCH + "^{tree}");


        // Create the in-memory index of the new/updated ticket
        DirCache index = DirCache.newInCore();
        DirCacheBuilder builder = index.builder();

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