| /* |
| * Copyright (C) 2019, Google LLC. |
| * 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.revwalk; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| |
| import org.eclipse.jgit.internal.storage.file.FileRepository; |
| import org.eclipse.jgit.internal.storage.file.GC; |
| import org.eclipse.jgit.junit.LocalDiskRepositoryTestCase; |
| import org.eclipse.jgit.junit.TestRepository; |
| import org.eclipse.jgit.lib.BitmapIndex.BitmapBuilder; |
| import org.eclipse.jgit.lib.NullProgressMonitor; |
| import org.eclipse.jgit.lib.ProgressMonitor; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| public class BitmapCalculatorTest extends LocalDiskRepositoryTestCase { |
| TestRepository<FileRepository> repo; |
| |
| /** {@inheritDoc} */ |
| @Override |
| @Before |
| public void setUp() throws Exception { |
| super.setUp(); |
| FileRepository db = createWorkRepository(); |
| repo = new TestRepository<>(db); |
| } |
| |
| @Test |
| public void addOnlyCommits() throws Exception { |
| RevBlob abBlob = repo.blob("a_b_content"); |
| RevCommit root = repo.commit().add("a/b", abBlob).create(); |
| repo.update("refs/heads/master", root); |
| |
| // GC creates bitmap index with ALL objects |
| GC gc = new GC(repo.getRepository()); |
| gc.setAuto(false); |
| gc.gc(); |
| |
| // These objects are not in the bitmap index. |
| RevBlob acBlob = repo.blob("a_c_content"); |
| RevCommit head = repo.commit().parent(root).add("a/c", acBlob).create(); |
| repo.update("refs/heads/master", head); |
| |
| BitmapCalculator bitmapWalker = new BitmapCalculator(repo.getRevWalk()); |
| BitmapBuilder bitmap = bitmapWalker |
| .getBitmap(head, NullProgressMonitor.INSTANCE); |
| |
| assertTrue(bitmap.contains(root.getId())); |
| assertTrue(bitmap.contains(root.getTree().getId())); |
| assertTrue(bitmap.contains(abBlob.getId())); |
| |
| // BitmapCalculator added only the commit, no other objects. |
| assertTrue(bitmap.contains(head.getId())); |
| assertFalse(bitmap.contains(head.getTree().getId())); |
| assertFalse(bitmap.contains(acBlob.getId())); |
| } |
| |
| @Test |
| public void walkUntilBitmap() throws Exception { |
| RevCommit root = repo.commit().create(); |
| repo.update("refs/heads/master", root); |
| |
| // GC creates bitmap index with ALL objects |
| GC gc = new GC(repo.getRepository()); |
| gc.setAuto(false); |
| gc.gc(); |
| |
| // These objects are not in the bitmap index. |
| RevCommit commit1 = repo.commit(root); |
| RevCommit commit2 = repo.commit(commit1); |
| repo.update("refs/heads/master", commit2); |
| |
| CounterProgressMonitor monitor = new CounterProgressMonitor(); |
| BitmapCalculator bitmapWalker = new BitmapCalculator(repo.getRevWalk()); |
| BitmapBuilder bitmap = bitmapWalker.getBitmap(commit2, monitor); |
| |
| assertTrue(bitmap.contains(root)); |
| assertTrue(bitmap.contains(commit1)); |
| assertTrue(bitmap.contains(commit2)); |
| assertEquals(2, monitor.getUpdates()); |
| } |
| |
| @Test |
| public void noNeedToWalk() throws Exception { |
| RevCommit root = repo.commit().create(); |
| RevCommit commit1 = repo.commit(root); |
| RevCommit commit2 = repo.commit(commit1); |
| repo.update("refs/heads/master", commit2); |
| |
| // GC creates bitmap index with ALL objects |
| GC gc = new GC(repo.getRepository()); |
| gc.setAuto(false); |
| gc.gc(); |
| |
| CounterProgressMonitor monitor = new CounterProgressMonitor(); |
| BitmapCalculator bitmapWalker = new BitmapCalculator(repo.getRevWalk()); |
| BitmapBuilder bitmap = bitmapWalker.getBitmap(commit2, monitor); |
| |
| assertTrue(bitmap.contains(root)); |
| assertTrue(bitmap.contains(commit1)); |
| assertTrue(bitmap.contains(commit2)); |
| assertEquals(0, monitor.getUpdates()); |
| } |
| |
| private static class CounterProgressMonitor implements ProgressMonitor { |
| |
| private int counter; |
| |
| @Override |
| public void start(int totalTasks) { |
| // Nothing to do in tests |
| } |
| |
| @Override |
| public void beginTask(String title, int totalWork) { |
| // Nothing to to in tests |
| } |
| |
| @Override |
| public void update(int completed) { |
| counter += 1; |
| } |
| |
| @Override |
| public void endTask() { |
| // Nothing to do in tests |
| } |
| |
| @Override |
| public boolean isCancelled() { |
| return false; |
| } |
| |
| int getUpdates() { |
| return counter; |
| } |
| } |
| } |