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- /*
- * Copyright (C) 2011, Ketan Padegaonkar <ketanpadegaonkar@gmail.com> and others
- *
- * This program and the accompanying materials are made available under the
- * terms of the Eclipse Distribution License v. 1.0 which is available at
- * https://www.eclipse.org/org/documents/edl-v10.php.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
- package org.eclipse.jgit.api;
-
- import java.io.IOException;
- import java.util.ArrayList;
- import java.util.Collections;
- import java.util.List;
-
- import org.eclipse.jgit.api.errors.GitAPIException;
- import org.eclipse.jgit.api.errors.JGitInternalException;
- import org.eclipse.jgit.lib.Constants;
- import org.eclipse.jgit.lib.Ref;
- import org.eclipse.jgit.lib.Repository;
- import org.eclipse.jgit.revwalk.RevWalk;
-
- /**
- * Used to obtain a list of tags.
- *
- * @see <a href="http://www.kernel.org/pub/software/scm/git/docs/git-tag.html"
- * >Git documentation about Tag</a>
- */
- public class ListTagCommand extends GitCommand<List<Ref>> {
-
- /**
- * Constructor for ListTagCommand.
- *
- * @param repo
- * a {@link org.eclipse.jgit.lib.Repository} object.
- */
- protected ListTagCommand(Repository repo) {
- super(repo);
- }
-
- /** {@inheritDoc} */
- @Override
- public List<Ref> call() throws GitAPIException {
- checkCallable();
- List<Ref> tags = new ArrayList<>();
- try (RevWalk revWalk = new RevWalk(repo)) {
- List<Ref> refList = repo.getRefDatabase()
- .getRefsByPrefix(Constants.R_TAGS);
- for (Ref ref : refList) {
- tags.add(ref);
- }
- } catch (IOException e) {
- throw new JGitInternalException(e.getMessage(), e);
- }
- Collections.sort(tags,
- (Ref o1, Ref o2) -> o1.getName().compareTo(o2.getName()));
- setCallable(false);
- return tags;
- }
-
- }
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