Example usage for org.eclipse.jgit.internal.storage.reftree RefTree read

Introduction

In this page you can find the example usage for org.eclipse.jgit.internal.storage.reftree RefTree read.

Prototype

public static RefTree read(ObjectReader reader, RevTree tree)
        throws MissingObjectException, IncorrectObjectTypeException, CorruptObjectException, IOException 

Source Link

Document

Load a reference tree.

Usage

From source file:org.uberfire.java.nio.fs.jgit.util.commands.RefTreeUpdateCommand.java

License:Apache License

private void commit(final Repository repo, final RevCommit original, final BiFunction fun) throws IOException {
    try (final ObjectReader reader = repo.newObjectReader();
            final ObjectInserter inserter = repo.newObjectInserter();
            final RevWalk rw = new RevWalk(reader)) {

        final RefTreeDatabase refdb = (RefTreeDatabase) repo.getRefDatabase();
        final RefDatabase bootstrap = refdb.getBootstrap();
        final RefUpdate refUpdate = bootstrap.newUpdate(refdb.getTxnCommitted(), false);

        final CommitBuilder cb = new CommitBuilder();
        final Ref ref = bootstrap.exactRef(refdb.getTxnCommitted());
        final RefTree tree;
        if (ref != null && ref.getObjectId() != null) {
            tree = RefTree.read(reader, rw.parseTree(ref.getObjectId()));
            cb.setParentId(ref.getObjectId());
            refUpdate.setExpectedOldObjectId(ref.getObjectId());
        } else {//from  www.java 2s  .  c o  m
            tree = RefTree.newEmptyTree();
            refUpdate.setExpectedOldObjectId(ObjectId.zeroId());
        }

        if (fun.apply(reader, tree)) {
            final Ref ref2 = bootstrap.exactRef(refdb.getTxnCommitted());
            if (ref2 == null || ref2.getObjectId().equals(ref != null ? ref.getObjectId() : null)) {
                cb.setTreeId(tree.writeTree(inserter));
                if (original != null) {
                    cb.setAuthor(original.getAuthorIdent());
                    cb.setCommitter(original.getAuthorIdent());
                } else {
                    final PersonIdent personIdent = new PersonIdent("user", "user@example.com");
                    cb.setAuthor(personIdent);
                    cb.setCommitter(personIdent);
                }
                refUpdate.setNewObjectId(inserter.insert(cb));
                inserter.flush();
                final RefUpdate.Result result = refUpdate.update(rw);
                switch (result) {
                case NEW:
                case FAST_FORWARD:
                    break;
                default:
                    throw new RuntimeException(
                            repo.getDirectory() + " -> " + result.toString() + " : " + refUpdate.getName());
                }
                final File commited = new File(repo.getDirectory(), refdb.getTxnCommitted());
                final File accepted = new File(repo.getDirectory(), refdb.getTxnNamespace() + "accepted");
                Files.copy(commited.toPath(), accepted.toPath(), StandardCopyOption.REPLACE_EXISTING);
            }
        }
    }
}

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