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- /*
- * Copyright (C) 2008, Charles O'Farrell <charleso@charleso.org>
- * Copyright (C) 2009-2010, Google Inc.
- * Copyright (C) 2008-2013, Robin Rosenberg <robin.rosenberg@dewire.com>
- * 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.internal.storage.file;
-
- import static org.eclipse.jgit.junit.Assert.assertEquals;
- import static java.nio.charset.StandardCharsets.UTF_8;
- import static org.eclipse.jgit.lib.Constants.LOCK_SUFFIX;
- import static org.junit.Assert.assertEquals;
- import static org.junit.Assert.assertFalse;
- import static org.junit.Assert.assertNotNull;
- import static org.junit.Assert.assertNotSame;
- import static org.junit.Assert.assertNull;
- import static org.junit.Assert.assertSame;
- import static org.junit.Assert.assertTrue;
- import static org.junit.Assert.fail;
-
- import java.io.File;
- import java.io.IOException;
- import java.util.List;
- import java.util.Map;
- import java.util.Map.Entry;
- import java.util.Optional;
-
- import org.eclipse.jgit.lib.AnyObjectId;
- import org.eclipse.jgit.lib.Constants;
- import org.eclipse.jgit.lib.ObjectId;
- import org.eclipse.jgit.lib.ObjectInserter;
- import org.eclipse.jgit.lib.PersonIdent;
- import org.eclipse.jgit.lib.Ref;
- import org.eclipse.jgit.lib.RefRename;
- import org.eclipse.jgit.lib.RefUpdate;
- import org.eclipse.jgit.lib.RefUpdate.Result;
- import org.eclipse.jgit.lib.ReflogEntry;
- import org.eclipse.jgit.lib.ReflogReader;
- import org.eclipse.jgit.lib.Repository;
- import org.eclipse.jgit.revwalk.RevCommit;
- import org.eclipse.jgit.revwalk.RevWalk;
- import org.eclipse.jgit.test.resources.SampleDataRepositoryTestCase;
- import org.junit.Test;
-
- public class RefUpdateTest extends SampleDataRepositoryTestCase {
-
- private void writeSymref(String src, String dst) throws IOException {
- RefUpdate u = db.updateRef(src);
- switch (u.link(dst)) {
- case NEW:
- case FORCED:
- case NO_CHANGE:
- break;
- default:
- fail("link " + src + " to " + dst);
- }
- }
-
- private RefUpdate updateRef(String name) throws IOException {
- final RefUpdate ref = db.updateRef(name);
- ref.setNewObjectId(db.resolve(Constants.HEAD));
- return ref;
- }
-
- private void delete(RefUpdate ref, Result expected)
- throws IOException {
- delete(ref, expected, true, true);
- }
-
- private void delete(final RefUpdate ref, final Result expected,
- final boolean exists, final boolean removed) throws IOException {
- delete(db, ref, expected, exists, removed);
- }
-
- private void delete(Repository repo, final RefUpdate ref,
- final Result expected, final boolean exists, final boolean removed)
- throws IOException {
- assertEquals(exists, getRef(repo, ref.getName()).isPresent());
- assertEquals(expected, ref.delete());
- assertEquals(!removed, getRef(repo, ref.getName()).isPresent());
- }
-
- private Optional<Ref> getRef(Repository repo, String name)
- throws IOException {
- return getRef(repo.getRefDatabase().getRefs(), name);
- }
-
- private Optional<Ref> getRef(List<Ref> refs, String name) {
- return refs.stream().filter(r -> r.getName().equals(name)).findAny();
- }
-
- @Test
- public void testNoCacheObjectIdSubclass() throws IOException {
- final String newRef = "refs/heads/abc";
- final RefUpdate ru = updateRef(newRef);
- final SubclassedId newid = new SubclassedId(ru.getNewObjectId());
- ru.setNewObjectId(newid);
- Result update = ru.update();
- assertEquals(Result.NEW, update);
- final Ref r = getRef(db, newRef).get();
- assertEquals(newRef, r.getName());
- assertNotNull(r.getObjectId());
- assertNotSame(newid, r.getObjectId());
- assertSame(ObjectId.class, r.getObjectId().getClass());
- assertEquals(newid, r.getObjectId());
- List<ReflogEntry> reverseEntries1 = db
- .getReflogReader("refs/heads/abc").getReverseEntries();
- ReflogEntry entry1 = reverseEntries1.get(0);
- assertEquals(1, reverseEntries1.size());
- assertEquals(ObjectId.zeroId(), entry1.getOldId());
- assertEquals(r.getObjectId(), entry1.getNewId());
- assertEquals(new PersonIdent(db).toString(), entry1.getWho().toString());
- assertEquals("", entry1.getComment());
- List<ReflogEntry> reverseEntries2 = db.getReflogReader("HEAD")
- .getReverseEntries();
- assertEquals(0, reverseEntries2.size());
- }
-
- @Test
- public void testNewNamespaceConflictWithLoosePrefixNameExists()
- throws IOException {
- final String newRef = "refs/heads/z";
- final RefUpdate ru = updateRef(newRef);
- Result update = ru.update();
- assertEquals(Result.NEW, update);
- // end setup
- final String newRef2 = "refs/heads/z/a";
- final RefUpdate ru2 = updateRef(newRef2);
- Result update2 = ru2.update();
- assertEquals(Result.LOCK_FAILURE, update2);
- assertEquals(1, db.getReflogReader("refs/heads/z").getReverseEntries().size());
- assertEquals(0, db.getReflogReader("HEAD").getReverseEntries().size());
- }
-
- @Test
- public void testNewNamespaceConflictWithPackedPrefixNameExists()
- throws IOException {
- final String newRef = "refs/heads/master/x";
- final RefUpdate ru = updateRef(newRef);
- Result update = ru.update();
- assertEquals(Result.LOCK_FAILURE, update);
- assertNull(db.getReflogReader("refs/heads/master/x"));
- assertEquals(0, db.getReflogReader("HEAD").getReverseEntries().size());
- }
-
- @Test
- public void testNewNamespaceConflictWithLoosePrefixOfExisting()
- throws IOException {
- final String newRef = "refs/heads/z/a";
- final RefUpdate ru = updateRef(newRef);
- Result update = ru.update();
- assertEquals(Result.NEW, update);
- // end setup
- final String newRef2 = "refs/heads/z";
- final RefUpdate ru2 = updateRef(newRef2);
- Result update2 = ru2.update();
- assertEquals(Result.LOCK_FAILURE, update2);
- assertEquals(1, db.getReflogReader("refs/heads/z/a").getReverseEntries().size());
- assertNull(db.getReflogReader("refs/heads/z"));
- assertEquals(0, db.getReflogReader("HEAD").getReverseEntries().size());
- }
-
- @Test
- public void testNewNamespaceConflictWithPackedPrefixOfExisting()
- throws IOException {
- final String newRef = "refs/heads/prefix";
- final RefUpdate ru = updateRef(newRef);
- Result update = ru.update();
- assertEquals(Result.LOCK_FAILURE, update);
- assertNull(db.getReflogReader("refs/heads/prefix"));
- assertEquals(0, db.getReflogReader("HEAD").getReverseEntries().size());
- }
-
- /**
- * Delete a ref that is pointed to by HEAD
- *
- * @throws IOException
- */
- @Test
- public void testDeleteHEADreferencedRef() throws IOException {
- ObjectId pid = db.resolve("refs/heads/master^");
- RefUpdate updateRef = db.updateRef("refs/heads/master");
- updateRef.setNewObjectId(pid);
- updateRef.setForceUpdate(true);
- Result update = updateRef.update();
- assertEquals(Result.FORCED, update); // internal
-
- RefUpdate updateRef2 = db.updateRef("refs/heads/master");
- Result delete = updateRef2.delete();
- assertEquals(Result.REJECTED_CURRENT_BRANCH, delete);
- assertEquals(pid, db.resolve("refs/heads/master"));
- assertEquals(1,db.getReflogReader("refs/heads/master").getReverseEntries().size());
- assertEquals(0,db.getReflogReader("HEAD").getReverseEntries().size());
- }
-
- @Test
- public void testLooseDelete() throws IOException {
- final String newRef = "refs/heads/abc";
- RefUpdate ref = updateRef(newRef);
- ref.update(); // create loose ref
- ref = updateRef(newRef); // refresh
- delete(ref, Result.NO_CHANGE);
- assertNull(db.getReflogReader("refs/heads/abc"));
- }
-
- @Test
- public void testDeleteHead() throws IOException {
- final RefUpdate ref = updateRef(Constants.HEAD);
- delete(ref, Result.REJECTED_CURRENT_BRANCH, true, false);
- assertEquals(0, db.getReflogReader("refs/heads/master").getReverseEntries().size());
- assertEquals(0, db.getReflogReader("HEAD").getReverseEntries().size());
- }
-
- @Test
- public void testDeleteHeadInBareRepo() throws IOException {
- Repository bareRepo = createBareRepository();
- String master = "refs/heads/master";
- Ref head = bareRepo.exactRef(Constants.HEAD);
- assertNotNull(head);
- assertTrue(head.isSymbolic());
- assertEquals(master, head.getLeaf().getName());
- assertNull(head.getObjectId());
- assertNull(bareRepo.exactRef(master));
-
- ObjectId blobId;
- try (ObjectInserter ins = bareRepo.newObjectInserter()) {
- blobId = ins.insert(Constants.OBJ_BLOB, "contents".getBytes(UTF_8));
- ins.flush();
- }
-
- // Create master via HEAD, so we delete it.
- RefUpdate ref = bareRepo.updateRef(Constants.HEAD);
- ref.setNewObjectId(blobId);
- assertEquals(Result.NEW, ref.update());
-
- head = bareRepo.exactRef(Constants.HEAD);
- assertTrue(head.isSymbolic());
- assertEquals(master, head.getLeaf().getName());
- assertEquals(blobId, head.getLeaf().getObjectId());
- assertEquals(blobId, bareRepo.exactRef(master).getObjectId());
-
- // Unlike in a non-bare repo, deleting the HEAD is allowed, and leaves HEAD
- // back in a dangling state.
- ref = bareRepo.updateRef(Constants.HEAD);
- ref.setExpectedOldObjectId(blobId);
- ref.setForceUpdate(true);
- delete(bareRepo, ref, Result.FORCED, true, true);
-
- head = bareRepo.exactRef(Constants.HEAD);
- assertNotNull(head);
- assertTrue(head.isSymbolic());
- assertEquals(master, head.getLeaf().getName());
- assertNull(head.getObjectId());
- assertNull(bareRepo.exactRef(master));
- }
-
- @Test
- public void testDeleteSymref() throws IOException {
- RefUpdate dst = updateRef("refs/heads/abc");
- assertEquals(Result.NEW, dst.update());
- ObjectId id = dst.getNewObjectId();
-
- RefUpdate u = db.updateRef("refs/symref");
- assertEquals(Result.NEW, u.link(dst.getName()));
-
- Ref ref = db.exactRef(u.getName());
- assertNotNull(ref);
- assertTrue(ref.isSymbolic());
- assertEquals(dst.getName(), ref.getLeaf().getName());
- assertEquals(id, ref.getLeaf().getObjectId());
-
- u = db.updateRef(u.getName());
- u.setDetachingSymbolicRef();
- u.setForceUpdate(true);
- assertEquals(Result.FORCED, u.delete());
-
- assertNull(db.exactRef(u.getName()));
- ref = db.exactRef(dst.getName());
- assertNotNull(ref);
- assertFalse(ref.isSymbolic());
- assertEquals(id, ref.getObjectId());
- }
-
- /**
- * Delete a loose ref and make sure the directory in refs is deleted too,
- * and the reflog dir too
- *
- * @throws IOException
- */
- @Test
- public void testDeleteLooseAndItsDirectory() throws IOException {
- ObjectId pid = db.resolve("refs/heads/c^");
- RefUpdate updateRef = db.updateRef("refs/heads/z/c");
- updateRef.setNewObjectId(pid);
- updateRef.setForceUpdate(true);
- updateRef.setRefLogMessage("new test ref", false);
- Result update = updateRef.update();
- assertEquals(Result.NEW, update); // internal
- assertTrue(new File(db.getDirectory(), Constants.R_HEADS + "z")
- .exists());
- assertTrue(new File(db.getDirectory(), "logs/refs/heads/z").exists());
-
- // The real test here
- RefUpdate updateRef2 = db.updateRef("refs/heads/z/c");
- updateRef2.setForceUpdate(true);
- Result delete = updateRef2.delete();
- assertEquals(Result.FORCED, delete);
- assertNull(db.resolve("refs/heads/z/c"));
- assertFalse(new File(db.getDirectory(), Constants.R_HEADS + "z")
- .exists());
- assertFalse(new File(db.getDirectory(), "logs/refs/heads/z").exists());
- }
-
- @Test
- public void testDeleteNotFound() throws IOException {
- final RefUpdate ref = updateRef("refs/heads/xyz");
- delete(ref, Result.NEW, false, true);
- }
-
- @Test
- public void testDeleteFastForward() throws IOException {
- final RefUpdate ref = updateRef("refs/heads/a");
- delete(ref, Result.FAST_FORWARD);
- }
-
- @Test
- public void testDeleteForce() throws IOException {
- final RefUpdate ref = db.updateRef("refs/heads/b");
- ref.setNewObjectId(db.resolve("refs/heads/a"));
- delete(ref, Result.REJECTED, true, false);
- ref.setForceUpdate(true);
- delete(ref, Result.FORCED);
- }
-
- @Test
- public void testDeleteWithoutHead() throws IOException {
- // Prepare repository without HEAD
- RefUpdate refUpdate = db.updateRef(Constants.HEAD, true);
- refUpdate.setForceUpdate(true);
- refUpdate.setNewObjectId(ObjectId.zeroId());
- Result updateResult = refUpdate.update();
- assertEquals(Result.FORCED, updateResult);
- Result deleteHeadResult = db.updateRef(Constants.HEAD).delete();
- assertEquals(Result.NO_CHANGE, deleteHeadResult);
-
- // Any result is ok as long as it's not an NPE
- db.updateRef(Constants.R_HEADS + "master").delete();
- }
-
- @Test
- public void testRefKeySameAsName() {
- @SuppressWarnings("deprecation")
- Map<String, Ref> allRefs = db.getAllRefs();
- for (Entry<String, Ref> e : allRefs.entrySet()) {
- assertEquals(e.getKey(), e.getValue().getName());
- }
- }
-
- /**
- * Try modify a ref forward, fast forward
- *
- * @throws IOException
- */
- @Test
- public void testUpdateRefForward() throws IOException {
- ObjectId ppid = db.resolve("refs/heads/master^");
- ObjectId pid = db.resolve("refs/heads/master");
-
- RefUpdate updateRef = db.updateRef("refs/heads/master");
- updateRef.setNewObjectId(ppid);
- updateRef.setForceUpdate(true);
- Result update = updateRef.update();
- assertEquals(Result.FORCED, update);
- assertEquals(ppid, db.resolve("refs/heads/master"));
-
- // real test
- RefUpdate updateRef2 = db.updateRef("refs/heads/master");
- updateRef2.setNewObjectId(pid);
- Result update2 = updateRef2.update();
- assertEquals(Result.FAST_FORWARD, update2);
- assertEquals(pid, db.resolve("refs/heads/master"));
- }
-
- /**
- * Update the HEAD ref. Only it should be changed, not what it points to.
- *
- * @throws Exception
- */
- @Test
- public void testUpdateRefDetached() throws Exception {
- ObjectId pid = db.resolve("refs/heads/master");
- ObjectId ppid = db.resolve("refs/heads/master^");
- RefUpdate updateRef = db.updateRef("HEAD", true);
- updateRef.setForceUpdate(true);
- updateRef.setNewObjectId(ppid);
- Result update = updateRef.update();
- assertEquals(Result.FORCED, update);
- assertEquals(ppid, db.resolve("HEAD"));
- Ref ref = db.exactRef("HEAD");
- assertEquals("HEAD", ref.getName());
- assertTrue("is detached", !ref.isSymbolic());
-
- // the branch HEAD referred to is left untouched
- assertEquals(pid, db.resolve("refs/heads/master"));
- ReflogReader reflogReader = db.getReflogReader("HEAD");
- ReflogEntry e = reflogReader.getReverseEntries().get(0);
- assertEquals(pid, e.getOldId());
- assertEquals(ppid, e.getNewId());
- assertEquals("GIT_COMMITTER_EMAIL", e.getWho().getEmailAddress());
- assertEquals("GIT_COMMITTER_NAME", e.getWho().getName());
- assertEquals(1250379778000L, e.getWho().getWhen().getTime());
- }
-
- /**
- * Update the HEAD ref when the referenced branch is unborn
- *
- * @throws Exception
- */
- @Test
- public void testUpdateRefDetachedUnbornHead() throws Exception {
- ObjectId ppid = db.resolve("refs/heads/master^");
- writeSymref("HEAD", "refs/heads/unborn");
- RefUpdate updateRef = db.updateRef("HEAD", true);
- updateRef.setForceUpdate(true);
- updateRef.setNewObjectId(ppid);
- Result update = updateRef.update();
- assertEquals(Result.NEW, update);
- assertEquals(ppid, db.resolve("HEAD"));
- Ref ref = db.exactRef("HEAD");
- assertEquals("HEAD", ref.getName());
- assertTrue("is detached", !ref.isSymbolic());
-
- // the branch HEAD referred to is left untouched
- assertNull(db.resolve("refs/heads/unborn"));
- ReflogReader reflogReader = db.getReflogReader("HEAD");
- ReflogEntry e = reflogReader.getReverseEntries().get(0);
- assertEquals(ObjectId.zeroId(), e.getOldId());
- assertEquals(ppid, e.getNewId());
- assertEquals("GIT_COMMITTER_EMAIL", e.getWho().getEmailAddress());
- assertEquals("GIT_COMMITTER_NAME", e.getWho().getName());
- assertEquals(1250379778000L, e.getWho().getWhen().getTime());
- }
-
- /**
- * Delete a ref that exists both as packed and loose. Make sure the ref
- * cannot be resolved after delete.
- *
- * @throws IOException
- */
- @Test
- public void testDeleteLoosePacked() throws IOException {
- ObjectId pid = db.resolve("refs/heads/c^");
- RefUpdate updateRef = db.updateRef("refs/heads/c");
- updateRef.setNewObjectId(pid);
- updateRef.setForceUpdate(true);
- Result update = updateRef.update();
- assertEquals(Result.FORCED, update); // internal
-
- // The real test here
- RefUpdate updateRef2 = db.updateRef("refs/heads/c");
- updateRef2.setForceUpdate(true);
- Result delete = updateRef2.delete();
- assertEquals(Result.FORCED, delete);
- assertNull(db.resolve("refs/heads/c"));
- }
-
- /**
- * Try modify a ref to same
- *
- * @throws IOException
- */
- @Test
- public void testUpdateRefNoChange() throws IOException {
- ObjectId pid = db.resolve("refs/heads/master");
- RefUpdate updateRef = db.updateRef("refs/heads/master");
- updateRef.setNewObjectId(pid);
- Result update = updateRef.update();
- assertEquals(Result.NO_CHANGE, update);
- assertEquals(pid, db.resolve("refs/heads/master"));
- }
-
- /**
- * Test case originating from
- * <a href="http://bugs.eclipse.org/285991">bug 285991</a>
- *
- * Make sure the in memory cache is updated properly after
- * update of symref. This one did not fail because the
- * ref was packed due to implementation issues.
- *
- * @throws Exception
- */
- @Test
- public void testRefsCacheAfterUpdate() throws Exception {
- // Do not use the default repo for this case.
- List<Ref> allRefs = db.getRefDatabase().getRefs();
- ObjectId oldValue = db.resolve("HEAD");
- ObjectId newValue = db.resolve("HEAD^");
- // first make HEAD refer to loose ref
- RefUpdate updateRef = db.updateRef(Constants.HEAD);
- updateRef.setForceUpdate(true);
- updateRef.setNewObjectId(newValue);
- Result update = updateRef.update();
- assertEquals(Result.FORCED, update);
-
- // now update that ref
- updateRef = db.updateRef(Constants.HEAD);
- updateRef.setNewObjectId(oldValue);
- update = updateRef.update();
- assertEquals(Result.FAST_FORWARD, update);
-
- allRefs = db.getRefDatabase().getRefs();
- Ref master = getRef(allRefs, "refs/heads/master").get();
- Ref head = getRef(allRefs, "HEAD").get();
- assertEquals("refs/heads/master", master.getName());
- assertEquals("HEAD", head.getName());
- assertTrue("is symbolic reference", head.isSymbolic());
- assertSame(master, head.getTarget());
- }
-
- /**
- * Test case originating from
- * <a href="http://bugs.eclipse.org/285991">bug 285991</a>
- *
- * Make sure the in memory cache is updated properly after
- * update of symref.
- *
- * @throws Exception
- */
- @Test
- public void testRefsCacheAfterUpdateLooseOnly() throws Exception {
- // Do not use the default repo for this case.
- List<Ref> allRefs = db.getRefDatabase().getRefs();
- ObjectId oldValue = db.resolve("HEAD");
- writeSymref(Constants.HEAD, "refs/heads/newref");
- RefUpdate updateRef = db.updateRef(Constants.HEAD);
- updateRef.setForceUpdate(true);
- updateRef.setNewObjectId(oldValue);
- Result update = updateRef.update();
- assertEquals(Result.NEW, update);
-
- allRefs = db.getRefDatabase().getRefs();
- Ref head = getRef(allRefs, "HEAD").get();
- Ref newref = getRef(allRefs, "refs/heads/newref").get();
- assertEquals("refs/heads/newref", newref.getName());
- assertEquals("HEAD", head.getName());
- assertTrue("is symbolic reference", head.isSymbolic());
- assertSame(newref, head.getTarget());
- }
-
- /**
- * Try modify a ref, but get wrong expected old value
- *
- * @throws IOException
- */
- @Test
- public void testUpdateRefLockFailureWrongOldValue() throws IOException {
- ObjectId pid = db.resolve("refs/heads/master");
- RefUpdate updateRef = db.updateRef("refs/heads/master");
- updateRef.setNewObjectId(pid);
- updateRef.setExpectedOldObjectId(db.resolve("refs/heads/master^"));
- Result update = updateRef.update();
- assertEquals(Result.LOCK_FAILURE, update);
- assertEquals(pid, db.resolve("refs/heads/master"));
- }
-
- /**
- * Try modify a ref forward, fast forward, checking old value first
- *
- * @throws IOException
- */
- @Test
- public void testUpdateRefForwardWithCheck1() throws IOException {
- ObjectId ppid = db.resolve("refs/heads/master^");
- ObjectId pid = db.resolve("refs/heads/master");
-
- RefUpdate updateRef = db.updateRef("refs/heads/master");
- updateRef.setNewObjectId(ppid);
- updateRef.setForceUpdate(true);
- Result update = updateRef.update();
- assertEquals(Result.FORCED, update);
- assertEquals(ppid, db.resolve("refs/heads/master"));
-
- // real test
- RefUpdate updateRef2 = db.updateRef("refs/heads/master");
- updateRef2.setExpectedOldObjectId(ppid);
- updateRef2.setNewObjectId(pid);
- Result update2 = updateRef2.update();
- assertEquals(Result.FAST_FORWARD, update2);
- assertEquals(pid, db.resolve("refs/heads/master"));
- }
-
- /**
- * Try modify a ref forward, fast forward, checking old commit first
- *
- * @throws IOException
- */
- @Test
- public void testUpdateRefForwardWithCheck2() throws IOException {
- ObjectId ppid = db.resolve("refs/heads/master^");
- ObjectId pid = db.resolve("refs/heads/master");
-
- RefUpdate updateRef = db.updateRef("refs/heads/master");
- updateRef.setNewObjectId(ppid);
- updateRef.setForceUpdate(true);
- Result update = updateRef.update();
- assertEquals(Result.FORCED, update);
- assertEquals(ppid, db.resolve("refs/heads/master"));
-
- // real test
- try (RevWalk rw = new RevWalk(db)) {
- RevCommit old = rw.parseCommit(ppid);
- RefUpdate updateRef2 = db.updateRef("refs/heads/master");
- updateRef2.setExpectedOldObjectId(old);
- updateRef2.setNewObjectId(pid);
- Result update2 = updateRef2.update();
- assertEquals(Result.FAST_FORWARD, update2);
- assertEquals(pid, db.resolve("refs/heads/master"));
- }
- }
-
- /**
- * Try modify a ref that is locked
- *
- * @throws IOException
- */
- @Test
- public void testUpdateRefLockFailureLocked() throws IOException {
- ObjectId opid = db.resolve("refs/heads/master");
- ObjectId pid = db.resolve("refs/heads/master^");
- RefUpdate updateRef = db.updateRef("refs/heads/master");
- updateRef.setNewObjectId(pid);
- LockFile lockFile1 = new LockFile(new File(db.getDirectory(),
- "refs/heads/master"));
- try {
- assertTrue(lockFile1.lock()); // precondition to test
- Result update = updateRef.update();
- assertEquals(Result.LOCK_FAILURE, update);
- assertEquals(opid, db.resolve("refs/heads/master"));
- LockFile lockFile2 = new LockFile(new File(db.getDirectory(),"refs/heads/master"));
- assertFalse(lockFile2.lock()); // was locked, still is
- } finally {
- lockFile1.unlock();
- }
- }
-
- /**
- * Try to delete a ref. Delete requires force.
- *
- * @throws IOException
- */
- @Test
- public void testDeleteLoosePackedRejected() throws IOException {
- ObjectId pid = db.resolve("refs/heads/c^");
- ObjectId oldpid = db.resolve("refs/heads/c");
- RefUpdate updateRef = db.updateRef("refs/heads/c");
- updateRef.setNewObjectId(pid);
- Result update = updateRef.update();
- assertEquals(Result.REJECTED, update);
- assertEquals(oldpid, db.resolve("refs/heads/c"));
- }
-
- @Test
- public void testRenameBranchNoPreviousLog() throws IOException {
- assertFalse("precondition, no log on old branchg", new File(db
- .getDirectory(), "logs/refs/heads/b").exists());
- ObjectId rb = db.resolve("refs/heads/b");
- ObjectId oldHead = db.resolve(Constants.HEAD);
- assertFalse(rb.equals(oldHead)); // assumption for this test
- RefRename renameRef = db.renameRef("refs/heads/b",
- "refs/heads/new/name");
- Result result = renameRef.rename();
- assertEquals(Result.RENAMED, result);
- assertEquals(rb, db.resolve("refs/heads/new/name"));
- assertNull(db.resolve("refs/heads/b"));
- assertEquals(1, db.getReflogReader("new/name").getReverseEntries().size());
- assertEquals("Branch: renamed b to new/name", db.getReflogReader("new/name")
- .getLastEntry().getComment());
- assertFalse(new File(db.getDirectory(), "logs/refs/heads/b").exists());
- assertEquals(oldHead, db.resolve(Constants.HEAD)); // unchanged
- }
-
- @Test
- public void testRenameBranchHasPreviousLog() throws IOException {
- ObjectId rb = db.resolve("refs/heads/b");
- ObjectId oldHead = db.resolve(Constants.HEAD);
- assertFalse("precondition for this test, branch b != HEAD", rb
- .equals(oldHead));
- writeReflog(db, rb, "Just a message", "refs/heads/b");
- assertTrue("log on old branch", new File(db.getDirectory(),
- "logs/refs/heads/b").exists());
- RefRename renameRef = db.renameRef("refs/heads/b",
- "refs/heads/new/name");
- Result result = renameRef.rename();
- assertEquals(Result.RENAMED, result);
- assertEquals(rb, db.resolve("refs/heads/new/name"));
- assertNull(db.resolve("refs/heads/b"));
- assertEquals(2, db.getReflogReader("new/name").getReverseEntries().size());
- assertEquals("Branch: renamed b to new/name", db.getReflogReader("new/name")
- .getLastEntry().getComment());
- assertEquals("Just a message", db.getReflogReader("new/name")
- .getReverseEntries().get(1).getComment());
- assertFalse(new File(db.getDirectory(), "logs/refs/heads/b").exists());
- assertEquals(oldHead, db.resolve(Constants.HEAD)); // unchanged
- }
-
- @Test
- public void testRenameCurrentBranch() throws IOException {
- ObjectId rb = db.resolve("refs/heads/b");
- writeSymref(Constants.HEAD, "refs/heads/b");
- ObjectId oldHead = db.resolve(Constants.HEAD);
- assertEquals("internal test condition, b == HEAD", oldHead, rb);
- writeReflog(db, rb, "Just a message", "refs/heads/b");
- assertTrue("log on old branch", new File(db.getDirectory(),
- "logs/refs/heads/b").exists());
- RefRename renameRef = db.renameRef("refs/heads/b",
- "refs/heads/new/name");
- Result result = renameRef.rename();
- assertEquals(Result.RENAMED, result);
- assertEquals(rb, db.resolve("refs/heads/new/name"));
- assertNull(db.resolve("refs/heads/b"));
- assertEquals("Branch: renamed b to new/name", db.getReflogReader(
- "new/name").getLastEntry().getComment());
- assertFalse(new File(db.getDirectory(), "logs/refs/heads/b").exists());
- assertEquals(rb, db.resolve(Constants.HEAD));
- assertEquals(2, db.getReflogReader("new/name").getReverseEntries().size());
- assertEquals("Branch: renamed b to new/name", db.getReflogReader("new/name").getReverseEntries().get(0).getComment());
- assertEquals("Just a message", db.getReflogReader("new/name").getReverseEntries().get(1).getComment());
- }
-
- @Test
- public void testRenameBranchAlsoInPack() throws IOException {
- ObjectId rb = db.resolve("refs/heads/b");
- ObjectId rb2 = db.resolve("refs/heads/b~1");
- assertEquals(Ref.Storage.PACKED, db.exactRef("refs/heads/b").getStorage());
- RefUpdate updateRef = db.updateRef("refs/heads/b");
- updateRef.setNewObjectId(rb2);
- updateRef.setForceUpdate(true);
- Result update = updateRef.update();
- assertEquals("internal check new ref is loose", Result.FORCED, update);
- assertEquals(Ref.Storage.LOOSE, db.exactRef("refs/heads/b").getStorage());
- writeReflog(db, rb, "Just a message", "refs/heads/b");
- assertTrue("log on old branch", new File(db.getDirectory(),
- "logs/refs/heads/b").exists());
- RefRename renameRef = db.renameRef("refs/heads/b",
- "refs/heads/new/name");
- Result result = renameRef.rename();
- assertEquals(Result.RENAMED, result);
- assertEquals(rb2, db.resolve("refs/heads/new/name"));
- assertNull(db.resolve("refs/heads/b"));
- assertEquals("Branch: renamed b to new/name", db.getReflogReader(
- "new/name").getLastEntry().getComment());
- assertEquals(3, db.getReflogReader("refs/heads/new/name").getReverseEntries().size());
- assertEquals("Branch: renamed b to new/name", db.getReflogReader("refs/heads/new/name").getReverseEntries().get(0).getComment());
- assertEquals(0, db.getReflogReader("HEAD").getReverseEntries().size());
- // make sure b's log file is gone too.
- assertFalse(new File(db.getDirectory(), "logs/refs/heads/b").exists());
-
- // Create new Repository instance, to reread caches and make sure our
- // assumptions are persistent.
- try (Repository ndb = new FileRepository(db.getDirectory())) {
- assertEquals(rb2, ndb.resolve("refs/heads/new/name"));
- assertNull(ndb.resolve("refs/heads/b"));
- }
- }
-
- public void tryRenameWhenLocked(String toLock, String fromName,
- String toName, String headPointsTo) throws IOException {
- // setup
- writeSymref(Constants.HEAD, headPointsTo);
- ObjectId oldfromId = db.resolve(fromName);
- ObjectId oldHeadId = db.resolve(Constants.HEAD);
- writeReflog(db, oldfromId, "Just a message", fromName);
- List<ReflogEntry> oldFromLog = db
- .getReflogReader(fromName).getReverseEntries();
- List<ReflogEntry> oldHeadLog = oldHeadId != null ? db
- .getReflogReader(Constants.HEAD).getReverseEntries() : null;
-
- assertTrue("internal check, we have a log", new File(db.getDirectory(),
- "logs/" + fromName).exists());
-
- // "someone" has branch X locked
- LockFile lockFile = new LockFile(new File(db.getDirectory(), toLock));
- try {
- assertTrue(lockFile.lock());
-
- // Now this is our test
- RefRename renameRef = db.renameRef(fromName, toName);
- Result result = renameRef.rename();
- assertEquals(Result.LOCK_FAILURE, result);
-
- // Check that the involved refs are the same despite the failure
- assertExists(false, toName);
- if (!toLock.equals(toName))
- assertExists(false, toName + LOCK_SUFFIX);
- assertExists(true, toLock + LOCK_SUFFIX);
- if (!toLock.equals(fromName))
- assertExists(false, "logs/" + fromName + LOCK_SUFFIX);
- assertExists(false, "logs/" + toName + LOCK_SUFFIX);
- assertEquals(oldHeadId, db.resolve(Constants.HEAD));
- assertEquals(oldfromId, db.resolve(fromName));
- assertNull(db.resolve(toName));
- assertEquals(oldFromLog.toString(), db.getReflogReader(fromName)
- .getReverseEntries().toString());
- if (oldHeadId != null && oldHeadLog != null)
- assertEquals(oldHeadLog.toString(), db.getReflogReader(
- Constants.HEAD).getReverseEntries().toString());
- } finally {
- lockFile.unlock();
- }
- }
-
- private void assertExists(boolean positive, String toName) {
- assertEquals(toName + (positive ? " " : " does not ") + "exist",
- positive, new File(db.getDirectory(), toName).exists());
- }
-
- @Test
- public void testRenameBranchCannotLockAFileHEADisFromLockHEAD()
- throws IOException {
- tryRenameWhenLocked("HEAD", "refs/heads/b", "refs/heads/new/name",
- "refs/heads/b");
- }
-
- @Test
- public void testRenameBranchCannotLockAFileHEADisFromLockFrom()
- throws IOException {
- tryRenameWhenLocked("refs/heads/b", "refs/heads/b",
- "refs/heads/new/name", "refs/heads/b");
- }
-
- @Test
- public void testRenameBranchCannotLockAFileHEADisFromLockTo()
- throws IOException {
- tryRenameWhenLocked("refs/heads/new/name", "refs/heads/b",
- "refs/heads/new/name", "refs/heads/b");
- }
-
- @Test
- public void testRenameBranchCannotLockAFileHEADisToLockFrom()
- throws IOException {
- tryRenameWhenLocked("refs/heads/b", "refs/heads/b",
- "refs/heads/new/name", "refs/heads/new/name");
- }
-
- @Test
- public void testRenameBranchCannotLockAFileHEADisToLockTo()
- throws IOException {
- tryRenameWhenLocked("refs/heads/new/name", "refs/heads/b",
- "refs/heads/new/name", "refs/heads/new/name");
- }
-
- @Test
- public void testRenameBranchCannotLockAFileHEADisOtherLockFrom()
- throws IOException {
- tryRenameWhenLocked("refs/heads/b", "refs/heads/b",
- "refs/heads/new/name", "refs/heads/a");
- }
-
- @Test
- public void testRenameBranchCannotLockAFileHEADisOtherLockTo()
- throws IOException {
- tryRenameWhenLocked("refs/heads/new/name", "refs/heads/b",
- "refs/heads/new/name", "refs/heads/a");
- }
-
- @Test
- public void testRenameRefNameColission1avoided() throws IOException {
- // setup
- ObjectId rb = db.resolve("refs/heads/b");
- writeSymref(Constants.HEAD, "refs/heads/a");
- RefUpdate updateRef = db.updateRef("refs/heads/a");
- updateRef.setNewObjectId(rb);
- updateRef.setRefLogMessage("Setup", false);
- assertEquals(Result.FAST_FORWARD, updateRef.update());
- ObjectId oldHead = db.resolve(Constants.HEAD);
- assertEquals(oldHead, rb); // assumption for this test
- writeReflog(db, rb, "Just a message", "refs/heads/a");
- assertTrue("internal check, we have a log", new File(db.getDirectory(),
- "logs/refs/heads/a").exists());
-
- // Now this is our test
- RefRename renameRef = db.renameRef("refs/heads/a", "refs/heads/a/b");
- Result result = renameRef.rename();
- assertEquals(Result.RENAMED, result);
- assertNull(db.resolve("refs/heads/a"));
- assertEquals(rb, db.resolve("refs/heads/a/b"));
- assertEquals(3, db.getReflogReader("a/b").getReverseEntries().size());
- assertEquals("Branch: renamed a to a/b", db.getReflogReader("a/b")
- .getReverseEntries().get(0).getComment());
- assertEquals("Just a message", db.getReflogReader("a/b")
- .getReverseEntries().get(1).getComment());
- assertEquals("Setup", db.getReflogReader("a/b").getReverseEntries()
- .get(2).getComment());
- // same thing was logged to HEAD
- assertEquals("Branch: renamed a to a/b", db.getReflogReader("HEAD")
- .getReverseEntries().get(0).getComment());
- }
-
- @Test
- public void testRenameRefNameColission2avoided() throws IOException {
- // setup
- ObjectId rb = db.resolve("refs/heads/b");
- writeSymref(Constants.HEAD, "refs/heads/prefix/a");
- RefUpdate updateRef = db.updateRef("refs/heads/prefix/a");
- updateRef.setNewObjectId(rb);
- updateRef.setRefLogMessage("Setup", false);
- updateRef.setForceUpdate(true);
- assertEquals(Result.FORCED, updateRef.update());
- ObjectId oldHead = db.resolve(Constants.HEAD);
- assertEquals(oldHead, rb); // assumption for this test
- writeReflog(db, rb, "Just a message", "refs/heads/prefix/a");
- assertTrue("internal check, we have a log", new File(db.getDirectory(),
- "logs/refs/heads/prefix/a").exists());
-
- // Now this is our test
- RefRename renameRef = db.renameRef("refs/heads/prefix/a",
- "refs/heads/prefix");
- Result result = renameRef.rename();
- assertEquals(Result.RENAMED, result);
-
- assertNull(db.resolve("refs/heads/prefix/a"));
- assertEquals(rb, db.resolve("refs/heads/prefix"));
- assertEquals(3, db.getReflogReader("prefix").getReverseEntries().size());
- assertEquals("Branch: renamed prefix/a to prefix", db.getReflogReader(
- "prefix").getReverseEntries().get(0).getComment());
- assertEquals("Just a message", db.getReflogReader("prefix")
- .getReverseEntries().get(1).getComment());
- assertEquals("Setup", db.getReflogReader("prefix").getReverseEntries()
- .get(2).getComment());
- assertEquals("Branch: renamed prefix/a to prefix", db.getReflogReader(
- "HEAD").getReverseEntries().get(0).getComment());
- }
-
- @Test
- public void testCreateMissingObject() throws IOException {
- String name = "refs/heads/abc";
- ObjectId bad =
- ObjectId.fromString("deadbeefdeadbeefdeadbeefdeadbeefdeadbeef");
- RefUpdate ru = db.updateRef(name);
- ru.setNewObjectId(bad);
- Result update = ru.update();
- assertEquals(Result.REJECTED_MISSING_OBJECT, update);
-
- Ref ref = db.exactRef(name);
- assertNull(ref);
- }
-
- @Test
- public void testUpdateMissingObject() throws IOException {
- String name = "refs/heads/abc";
- RefUpdate ru = updateRef(name);
- Result update = ru.update();
- assertEquals(Result.NEW, update);
- ObjectId oldId = ru.getNewObjectId();
-
- ObjectId bad =
- ObjectId.fromString("deadbeefdeadbeefdeadbeefdeadbeefdeadbeef");
- ru = db.updateRef(name);
- ru.setNewObjectId(bad);
- update = ru.update();
- assertEquals(Result.REJECTED_MISSING_OBJECT, update);
-
- Ref ref = db.exactRef(name);
- assertNotNull(ref);
- assertEquals(oldId, ref.getObjectId());
- }
-
- @Test
- public void testForceUpdateMissingObject() throws IOException {
- String name = "refs/heads/abc";
- RefUpdate ru = updateRef(name);
- Result update = ru.update();
- assertEquals(Result.NEW, update);
- ObjectId oldId = ru.getNewObjectId();
-
- ObjectId bad =
- ObjectId.fromString("deadbeefdeadbeefdeadbeefdeadbeefdeadbeef");
- ru = db.updateRef(name);
- ru.setNewObjectId(bad);
- update = ru.forceUpdate();
- assertEquals(Result.REJECTED_MISSING_OBJECT, update);
-
- Ref ref = db.exactRef(name);
- assertNotNull(ref);
- assertEquals(oldId, ref.getObjectId());
- }
-
- private static void writeReflog(Repository db, ObjectId newId, String msg,
- String refName) throws IOException {
- RefDirectory refs = (RefDirectory) db.getRefDatabase();
- RefDirectoryUpdate update = refs.newUpdate(refName, true);
- update.setNewObjectId(newId);
- refs.log(false, update, msg, true);
- }
-
- private static class SubclassedId extends ObjectId {
- SubclassedId(AnyObjectId src) {
- super(src);
- }
- }
- }
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