From: Ketan Padegaonkar Date: Mon, 23 May 2011 06:36:52 +0000 (+0530) Subject: Add ListTagCommand to JGit API X-Git-Tag: v1.1.0.201109011030-rc2~11 X-Git-Url: https://source.dussan.org/?a=commitdiff_plain;h=refs%2Fchanges%2F01%2F3901%2F3;p=jgit.git Add ListTagCommand to JGit API Bug: 355246 Change-Id: I11e019f3c19b4340ac7160ac8fcbadd52499d322 Signed-off-by: Chris Aniszczyk --- diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/api/TagCommandTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/api/TagCommandTest.java index 1db0381d0b..1e8f7fde01 100644 --- a/org.eclipse.jgit.test/tst/org/eclipse/jgit/api/TagCommandTest.java +++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/api/TagCommandTest.java @@ -197,4 +197,40 @@ public class TagCommandTest extends RepositoryTestCase { assertEquals(0, deleted.size()); } + @Test + public void testShouldNotBlowUpIfThereAreNoTagsInRepository() + throws Exception { + Git git = new Git(db); + git.add().addFilepattern("*").call(); + git.commit().setMessage("initial commit").call(); + List list = git.tagList().call(); + assertEquals(0, list.size()); + } + + @Test + public void testShouldNotBlowUpIfThereAreNoCommitsInRepository() + throws Exception { + Git git = new Git(db); + List list = git.tagList().call(); + assertEquals(0, list.size()); + } + + @Test + public void testListAllTagsInRepositoryInOrder() throws Exception { + Git git = new Git(db); + git.add().addFilepattern("*").call(); + git.commit().setMessage("initial commit").call(); + + git.tag().setName("v3").call(); + git.tag().setName("v2").call(); + git.tag().setName("v10").call(); + + List list = git.tagList().call(); + + assertEquals(3, list.size()); + assertEquals("v10", list.get(0).getTagName()); + assertEquals("v2", list.get(1).getTagName()); + assertEquals("v3", list.get(2).getTagName()); + } + } diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/api/Git.java b/org.eclipse.jgit/src/org/eclipse/jgit/api/Git.java index 6149bfe126..5b2677d581 100644 --- a/org.eclipse.jgit/src/org/eclipse/jgit/api/Git.java +++ b/org.eclipse.jgit/src/org/eclipse/jgit/api/Git.java @@ -241,6 +241,16 @@ public class Git { return new ListBranchCommand(repo); } + /** + * + * Returns a command object used to list tags + * + * @return a {@link ListTagCommand} + */ + public ListTagCommand tagList() { + return new ListTagCommand(repo); + } + /** * Returns a command object used to rename branches * @@ -496,8 +506,8 @@ public class Git { /** * Returns a command object used to delete tags - * - * @return a {@link DeleteBranchCommand} + * + * @return a {@link DeleteTagCommand} */ public DeleteTagCommand tagDelete() { return new DeleteTagCommand(repo); diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/api/ListTagCommand.java b/org.eclipse.jgit/src/org/eclipse/jgit/api/ListTagCommand.java new file mode 100644 index 0000000000..ec199c37ab --- /dev/null +++ b/org.eclipse.jgit/src/org/eclipse/jgit/api/ListTagCommand.java @@ -0,0 +1,104 @@ +/* + * Copyright (C) 2011, Ketan Padegaonkar + * and other copyright owners as documented in the project's IP log. + * + * This program and the accompanying materials are made available + * under the terms of the Eclipse Distribution License v1.0 which + * accompanies this distribution, is reproduced below, and is + * available at http://www.eclipse.org/org/documents/edl-v10.php + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * + * - Neither the name of the Eclipse Foundation, Inc. nor the + * names of its contributors may be used to endorse or promote + * products derived from this software without specific prior + * written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND + * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, + * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF + * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +package org.eclipse.jgit.api; + +import java.io.IOException; +import java.util.ArrayList; +import java.util.Collections; +import java.util.Comparator; +import java.util.List; +import java.util.Map; + +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.RevTag; +import org.eclipse.jgit.revwalk.RevWalk; + +/** + * Used to obtain a list of tags. + * + * @see Git documentation about Tag + */ +public class ListTagCommand extends GitCommand> { + + /** + * @param repo + */ + protected ListTagCommand(Repository repo) { + super(repo); + } + + /** + * @throws JGitInternalException + * upon internal failure + * @return the tags available + */ + public List call() throws JGitInternalException { + checkCallable(); + Map refList; + List tags = new ArrayList(); + RevWalk revWalk = new RevWalk(repo); + try { + refList = repo.getRefDatabase().getRefs(Constants.R_TAGS); + for (Ref ref : refList.values()) { + RevTag tag = revWalk.parseTag(ref.getObjectId()); + tags.add(tag); + } + } catch (IOException e) { + throw new JGitInternalException(e.getMessage(), e); + } finally { + revWalk.release(); + } + Collections.sort(tags, new Comparator() { + public int compare(RevTag o1, RevTag o2) { + return o1.getTagName().compareTo(o2.getTagName()); + } + }); + setCallable(false); + return tags; + } + +}