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- /*
- * Copyright (C) 2017, Matthias Sohn <matthias.sohn@sap.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.internal.storage.file;
-
- import static org.eclipse.jgit.lib.Constants.INFO_ALTERNATES;
- import static org.junit.Assert.assertTrue;
-
- import java.io.File;
- import java.io.IOException;
- import java.nio.file.Path;
-
- import org.eclipse.jgit.api.Git;
- import org.eclipse.jgit.api.errors.AbortedByHookException;
- import org.eclipse.jgit.api.errors.ConcurrentRefUpdateException;
- import org.eclipse.jgit.api.errors.GitAPIException;
- import org.eclipse.jgit.api.errors.NoFilepatternException;
- import org.eclipse.jgit.api.errors.NoHeadException;
- import org.eclipse.jgit.api.errors.NoMessageException;
- import org.eclipse.jgit.api.errors.UnmergedPathsException;
- import org.eclipse.jgit.api.errors.WrongRepositoryStateException;
- import org.eclipse.jgit.junit.JGitTestUtil;
- import org.eclipse.jgit.lib.ObjectId;
- import org.eclipse.jgit.revwalk.RevCommit;
- import org.eclipse.jgit.test.resources.SampleDataRepositoryTestCase;
- import org.junit.Test;
-
- public class AlternatesTest extends SampleDataRepositoryTestCase {
-
- private FileRepository db2;
-
- @Override
- public void setUp() throws Exception {
- super.setUp();
- db2 = createWorkRepository();
- }
-
- private void setAlternate(FileRepository from, FileRepository to)
- throws IOException {
- File alt = new File(from.getObjectDatabase().getDirectory(),
- INFO_ALTERNATES);
- alt.getParentFile().mkdirs();
- File fromDir = from.getObjectDatabase().getDirectory();
- File toDir = to.getObjectDatabase().getDirectory();
- Path relative = fromDir.toPath().relativize(toDir.toPath());
- write(alt, relative.toString() + "\n");
- }
-
- @Test
- public void testAlternate() throws Exception {
- setAlternate(db2, db);
- RevCommit c = createCommit();
- assertCommit(c);
- assertAlternateObjects(db2);
- }
-
- @Test
- public void testAlternateCyclic2() throws Exception {
- setAlternate(db2, db);
- setAlternate(db, db2);
- RevCommit c = createCommit();
- assertCommit(c);
- assertAlternateObjects(db2);
- }
-
- @Test
- public void testAlternateCyclic3() throws Exception {
- FileRepository db3 = createBareRepository();
- setAlternate(db2, db3);
- setAlternate(db3, db);
- setAlternate(db, db2);
- RevCommit c = createCommit();
- assertCommit(c);
- assertAlternateObjects(db2);
- }
-
- private RevCommit createCommit() throws IOException, GitAPIException,
- NoFilepatternException, NoHeadException, NoMessageException,
- UnmergedPathsException, ConcurrentRefUpdateException,
- WrongRepositoryStateException, AbortedByHookException {
- JGitTestUtil.writeTrashFile(db, "test", "test");
- Git git = Git.wrap(db2);
- git.add().addFilepattern("test").call();
- RevCommit c = git.commit().setMessage("adding test").call();
- return c;
- }
-
- private void assertCommit(RevCommit c) {
- ObjectDirectory od = db2.getObjectDatabase();
- assertTrue("can't find expected commit" + c.name(),
- od.has(c.toObjectId()));
- }
-
- private void assertAlternateObjects(FileRepository repo) {
- // check some objects in alternate
- final ObjectId alternateObjects[] = new ObjectId[] {
- ObjectId.fromString("49322bb17d3acc9146f98c97d078513228bbf3c0"),
- ObjectId.fromString("d0114ab8ac326bab30e3a657a0397578c5a1af88"),
- ObjectId.fromString("f73b95671f326616d66b2afb3bdfcdbbce110b44"),
- ObjectId.fromString("6020a3b8d5d636e549ccbd0c53e2764684bb3125"),
- ObjectId.fromString("0a3d7772488b6b106fb62813c4d6d627918d9181"),
- ObjectId.fromString("da0f8ed91a8f2f0f067b3bdf26265d5ca48cf82c"),
- ObjectId.fromString(
- "cd4bcfc27da62c6b840de700be1c60a7e69952a5") };
- ObjectDirectory od = repo.getObjectDatabase();
- for (ObjectId o : alternateObjects) {
- assertTrue(String.format("can't find object %s in alternate",
- o.getName()), od.has(o));
- }
- }
- }
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