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- /*
- * Copyright (C) 2010, 2013 Google Inc. 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.HEAD;
- import static org.eclipse.jgit.lib.Constants.R_HEADS;
- import static org.eclipse.jgit.lib.Constants.R_TAGS;
- import static org.eclipse.jgit.lib.Ref.Storage.LOOSE;
- import static org.eclipse.jgit.lib.Ref.Storage.NEW;
- import static org.junit.Assert.assertArrayEquals;
- 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.time.Instant;
- import java.util.ArrayList;
- import java.util.Arrays;
- import java.util.List;
- import java.util.Map;
- import java.util.concurrent.atomic.AtomicInteger;
- import java.util.concurrent.atomic.AtomicReference;
-
- import org.eclipse.jgit.errors.LockFailedException;
- import org.eclipse.jgit.events.ListenerHandle;
- import org.eclipse.jgit.events.RefsChangedEvent;
- import org.eclipse.jgit.junit.LocalDiskRepositoryTestCase;
- import org.eclipse.jgit.junit.Repeat;
- import org.eclipse.jgit.junit.TestRepository;
- import org.eclipse.jgit.lib.AnyObjectId;
- import org.eclipse.jgit.lib.Ref;
- import org.eclipse.jgit.lib.Ref.Storage;
- import org.eclipse.jgit.lib.RefDatabase;
- import org.eclipse.jgit.lib.Repository;
- import org.eclipse.jgit.revwalk.RevCommit;
- import org.eclipse.jgit.revwalk.RevTag;
- import org.eclipse.jgit.util.FS;
- import org.junit.Before;
- import org.junit.Test;
-
- @SuppressWarnings("boxing")
- public class RefDirectoryTest extends LocalDiskRepositoryTestCase {
- private Repository diskRepo;
-
- private TestRepository<Repository> repo;
-
- private RefDirectory refdir;
-
- private RevCommit A;
-
- private RevCommit B;
-
- private RevTag v1_0;
-
- @Override
- @Before
- public void setUp() throws Exception {
- super.setUp();
-
- diskRepo = createBareRepository();
- refdir = (RefDirectory) diskRepo.getRefDatabase();
-
- repo = new TestRepository<>(diskRepo);
- A = repo.commit().create();
- B = repo.commit(repo.getRevWalk().parseCommit(A));
- v1_0 = repo.tag("v1_0", B);
- repo.getRevWalk().parseBody(v1_0);
- }
-
- @Test
- public void testCreate() throws IOException {
- // setUp above created the directory. We just have to test it.
- File d = diskRepo.getDirectory();
- assertSame(diskRepo, refdir.getRepository());
-
- assertTrue(new File(d, "refs").isDirectory());
- assertTrue(new File(d, "logs").isDirectory());
- assertTrue(new File(d, "logs/refs").isDirectory());
- assertFalse(new File(d, "packed-refs").exists());
-
- assertTrue(new File(d, "refs/heads").isDirectory());
- assertTrue(new File(d, "refs/tags").isDirectory());
- assertEquals(2, new File(d, "refs").list().length);
- assertEquals(0, new File(d, "refs/heads").list().length);
- assertEquals(0, new File(d, "refs/tags").list().length);
-
- assertTrue(new File(d, "logs/refs/heads").isDirectory());
- assertFalse(new File(d, "logs/HEAD").exists());
- assertEquals(0, new File(d, "logs/refs/heads").list().length);
-
- assertEquals("ref: refs/heads/master\n", read(new File(d, HEAD)));
- }
-
- @Test(expected = UnsupportedOperationException.class)
- public void testVersioningNotImplemented_exactRef() throws IOException {
- assertFalse(refdir.hasVersioning());
-
- Ref ref = refdir.exactRef(HEAD);
- assertNotNull(ref);
- ref.getUpdateIndex(); // Not implemented on FS
- }
-
- @Test
- public void testVersioningNotImplemented_getRefs() throws Exception {
- assertFalse(refdir.hasVersioning());
-
- RevCommit C = repo.commit().parent(B).create();
- repo.update("master", C);
- List<Ref> refs = refdir.getRefs();
-
- for (Ref ref : refs) {
- try {
- ref.getUpdateIndex();
- fail("FS doesn't implement ref versioning");
- } catch (UnsupportedOperationException e) {
- // ok
- }
- }
- }
-
- @Test
- public void testGetRefs_EmptyDatabase() throws IOException {
- Map<String, Ref> all;
-
- all = refdir.getRefs(RefDatabase.ALL);
- assertTrue("no references", all.isEmpty());
-
- all = refdir.getRefs(R_HEADS);
- assertTrue("no references", all.isEmpty());
-
- all = refdir.getRefs(R_TAGS);
- assertTrue("no references", all.isEmpty());
- }
-
- @Test
- public void testGetRefs_HeadOnOneBranch() throws IOException {
- Map<String, Ref> all;
- Ref head, master;
-
- writeLooseRef("refs/heads/master", A);
-
- all = refdir.getRefs(RefDatabase.ALL);
- assertEquals(2, all.size());
- assertTrue("has HEAD", all.containsKey(HEAD));
- assertTrue("has master", all.containsKey("refs/heads/master"));
-
- head = all.get(HEAD);
- master = all.get("refs/heads/master");
-
- assertEquals(HEAD, head.getName());
- assertTrue(head.isSymbolic());
- assertSame(LOOSE, head.getStorage());
- assertSame("uses same ref as target", master, head.getTarget());
-
- assertEquals("refs/heads/master", master.getName());
- assertFalse(master.isSymbolic());
- assertSame(LOOSE, master.getStorage());
- assertEquals(A, master.getObjectId());
- }
-
- @Test
- public void testGetRefs_DeatchedHead1() throws IOException {
- Map<String, Ref> all;
- Ref head;
-
- writeLooseRef(HEAD, A);
-
- all = refdir.getRefs(RefDatabase.ALL);
- assertEquals(1, all.size());
- assertTrue("has HEAD", all.containsKey(HEAD));
-
- head = all.get(HEAD);
-
- assertEquals(HEAD, head.getName());
- assertFalse(head.isSymbolic());
- assertSame(LOOSE, head.getStorage());
- assertEquals(A, head.getObjectId());
- }
-
- @Test
- public void testGetRefs_DeatchedHead2() throws IOException {
- Map<String, Ref> all;
- Ref head, master;
-
- writeLooseRef(HEAD, A);
- writeLooseRef("refs/heads/master", B);
-
- all = refdir.getRefs(RefDatabase.ALL);
- assertEquals(2, all.size());
-
- head = all.get(HEAD);
- master = all.get("refs/heads/master");
-
- assertEquals(HEAD, head.getName());
- assertFalse(head.isSymbolic());
- assertSame(LOOSE, head.getStorage());
- assertEquals(A, head.getObjectId());
-
- assertEquals("refs/heads/master", master.getName());
- assertFalse(master.isSymbolic());
- assertSame(LOOSE, master.getStorage());
- assertEquals(B, master.getObjectId());
- }
-
- @Test
- public void testGetRefs_DeeplyNestedBranch() throws IOException {
- String name = "refs/heads/a/b/c/d/e/f/g/h/i/j/k";
- Map<String, Ref> all;
- Ref r;
-
- writeLooseRef(name, A);
-
- all = refdir.getRefs(RefDatabase.ALL);
- assertEquals(1, all.size());
-
- r = all.get(name);
- assertEquals(name, r.getName());
- assertFalse(r.isSymbolic());
- assertSame(LOOSE, r.getStorage());
- assertEquals(A, r.getObjectId());
- }
-
- @Test
- public void testGetRefs_HeadBranchNotBorn() throws IOException {
- Map<String, Ref> all;
- Ref a, b;
-
- writeLooseRef("refs/heads/A", A);
- writeLooseRef("refs/heads/B", B);
-
- all = refdir.getRefs(RefDatabase.ALL);
- assertEquals(2, all.size());
- assertFalse("no HEAD", all.containsKey(HEAD));
-
- a = all.get("refs/heads/A");
- b = all.get("refs/heads/B");
-
- assertEquals(A, a.getObjectId());
- assertEquals(B, b.getObjectId());
-
- assertEquals("refs/heads/A", a.getName());
- assertEquals("refs/heads/B", b.getName());
- }
-
- @Test
- public void testGetRefs_LooseOverridesPacked() throws IOException {
- Map<String, Ref> heads;
- Ref a;
-
- writeLooseRef("refs/heads/master", B);
- writePackedRef("refs/heads/master", A);
-
- heads = refdir.getRefs(R_HEADS);
- assertEquals(1, heads.size());
-
- a = heads.get("master");
- assertEquals("refs/heads/master", a.getName());
- assertEquals(B, a.getObjectId());
- }
-
- @Test
- public void testGetRefs_IgnoresGarbageRef1() throws IOException {
- Map<String, Ref> heads;
- Ref a;
-
- writeLooseRef("refs/heads/A", A);
- write(new File(diskRepo.getDirectory(), "refs/heads/bad"), "FAIL\n");
-
- heads = refdir.getRefs(RefDatabase.ALL);
- assertEquals(1, heads.size());
-
- a = heads.get("refs/heads/A");
- assertEquals("refs/heads/A", a.getName());
- assertEquals(A, a.getObjectId());
- }
-
- @Test
- public void testGetRefs_IgnoresGarbageRef2() throws IOException {
- Map<String, Ref> heads;
- Ref a;
-
- writeLooseRef("refs/heads/A", A);
- write(new File(diskRepo.getDirectory(), "refs/heads/bad"), "");
-
- heads = refdir.getRefs(RefDatabase.ALL);
- assertEquals(1, heads.size());
-
- a = heads.get("refs/heads/A");
- assertEquals("refs/heads/A", a.getName());
- assertEquals(A, a.getObjectId());
- }
-
- @Test
- public void testGetRefs_IgnoresGarbageRef3() throws IOException {
- Map<String, Ref> heads;
- Ref a;
-
- writeLooseRef("refs/heads/A", A);
- write(new File(diskRepo.getDirectory(), "refs/heads/bad"), "\n");
-
- heads = refdir.getRefs(RefDatabase.ALL);
- assertEquals(1, heads.size());
-
- a = heads.get("refs/heads/A");
- assertEquals("refs/heads/A", a.getName());
- assertEquals(A, a.getObjectId());
- }
-
- @Test
- public void testGetRefs_IgnoresGarbageRef4() throws IOException {
- Map<String, Ref> heads;
- Ref a, b, c;
-
- writeLooseRef("refs/heads/A", A);
- writeLooseRef("refs/heads/B", B);
- writeLooseRef("refs/heads/C", A);
- heads = refdir.getRefs(RefDatabase.ALL);
- assertEquals(3, heads.size());
- assertTrue(heads.containsKey("refs/heads/A"));
- assertTrue(heads.containsKey("refs/heads/B"));
- assertTrue(heads.containsKey("refs/heads/C"));
-
- writeLooseRef("refs/heads/B", "FAIL\n");
-
- heads = refdir.getRefs(RefDatabase.ALL);
- assertEquals(2, heads.size());
-
- a = heads.get("refs/heads/A");
- b = heads.get("refs/heads/B");
- c = heads.get("refs/heads/C");
-
- assertEquals("refs/heads/A", a.getName());
- assertEquals(A, a.getObjectId());
-
- assertNull("no refs/heads/B", b);
-
- assertEquals("refs/heads/C", c.getName());
- assertEquals(A, c.getObjectId());
- }
-
- @Test
- public void testFirstExactRef_IgnoresGarbageRef() throws IOException {
- writeLooseRef("refs/heads/A", A);
- write(new File(diskRepo.getDirectory(), "refs/heads/bad"), "FAIL\n");
-
- Ref a = refdir.firstExactRef("refs/heads/bad", "refs/heads/A");
- assertEquals("refs/heads/A", a.getName());
- assertEquals(A, a.getObjectId());
- }
-
- @Test
- public void testExactRef_IgnoresGarbageRef() throws IOException {
- writeLooseRef("refs/heads/A", A);
- write(new File(diskRepo.getDirectory(), "refs/heads/bad"), "FAIL\n");
-
- Map<String, Ref> refs =
- refdir.exactRef("refs/heads/bad", "refs/heads/A");
-
- assertNull("no refs/heads/bad", refs.get("refs/heads/bad"));
-
- Ref a = refs.get("refs/heads/A");
- assertEquals("refs/heads/A", a.getName());
- assertEquals(A, a.getObjectId());
-
- assertEquals(1, refs.size());
- }
-
- @Test
- public void testGetRefs_InvalidName() throws IOException {
- writeLooseRef("refs/heads/A", A);
-
- assertTrue("empty refs/heads", refdir.getRefs("refs/heads").isEmpty());
- assertTrue("empty objects", refdir.getRefs("objects").isEmpty());
- assertTrue("empty objects/", refdir.getRefs("objects/").isEmpty());
- }
-
- @Test
- public void testReadNotExistingBranchConfig() throws IOException {
- assertNull("find branch config", refdir.findRef("config"));
- assertNull("find branch config", refdir.findRef("refs/heads/config"));
- }
-
- @Test
- public void testReadBranchConfig() throws IOException {
- writeLooseRef("refs/heads/config", A);
-
- assertNotNull("find branch config", refdir.findRef("config"));
- }
-
- @Test
- public void testGetRefs_HeadsOnly_AllLoose() throws IOException {
- Map<String, Ref> heads;
- Ref a, b;
-
- writeLooseRef("refs/heads/A", A);
- writeLooseRef("refs/heads/B", B);
- writeLooseRef("refs/tags/v1.0", v1_0);
-
- heads = refdir.getRefs(R_HEADS);
- assertEquals(2, heads.size());
-
- a = heads.get("A");
- b = heads.get("B");
-
- assertEquals("refs/heads/A", a.getName());
- assertEquals("refs/heads/B", b.getName());
-
- assertEquals(A, a.getObjectId());
- assertEquals(B, b.getObjectId());
- }
-
- @Test
- public void testGetRefs_HeadsOnly_AllPacked1() throws IOException {
- Map<String, Ref> heads;
- Ref a;
-
- deleteLooseRef(HEAD);
- writePackedRef("refs/heads/A", A);
-
- heads = refdir.getRefs(R_HEADS);
- assertEquals(1, heads.size());
-
- a = heads.get("A");
-
- assertEquals("refs/heads/A", a.getName());
- assertEquals(A, a.getObjectId());
- }
-
- @Test
- public void testGetRefs_HeadsOnly_SymrefToPacked() throws IOException {
- Map<String, Ref> heads;
- Ref master, other;
-
- writeLooseRef("refs/heads/other", "ref: refs/heads/master\n");
- writePackedRef("refs/heads/master", A);
-
- heads = refdir.getRefs(R_HEADS);
- assertEquals(2, heads.size());
-
- master = heads.get("master");
- other = heads.get("other");
-
- assertEquals("refs/heads/master", master.getName());
- assertEquals(A, master.getObjectId());
-
- assertEquals("refs/heads/other", other.getName());
- assertEquals(A, other.getObjectId());
- assertSame(master, other.getTarget());
- }
-
- @Test
- public void testGetRefs_HeadsOnly_Mixed() throws IOException {
- Map<String, Ref> heads;
- Ref a, b;
-
- writeLooseRef("refs/heads/A", A);
- writeLooseRef("refs/heads/B", B);
- writePackedRef("refs/tags/v1.0", v1_0);
-
- heads = refdir.getRefs(R_HEADS);
- assertEquals(2, heads.size());
-
- a = heads.get("A");
- b = heads.get("B");
-
- assertEquals("refs/heads/A", a.getName());
- assertEquals("refs/heads/B", b.getName());
-
- assertEquals(A, a.getObjectId());
- assertEquals(B, b.getObjectId());
- }
-
- @Test
- public void testFirstExactRef_Mixed() throws IOException {
- writeLooseRef("refs/heads/A", A);
- writePackedRef("refs/tags/v1.0", v1_0);
-
- Ref a = refdir.firstExactRef("refs/heads/A", "refs/tags/v1.0");
- Ref one = refdir.firstExactRef("refs/tags/v1.0", "refs/heads/A");
-
- assertEquals("refs/heads/A", a.getName());
- assertEquals("refs/tags/v1.0", one.getName());
-
- assertEquals(A, a.getObjectId());
- assertEquals(v1_0, one.getObjectId());
- }
-
- @Test
- public void testGetRefs_TagsOnly_AllLoose() throws IOException {
- Map<String, Ref> tags;
- Ref a;
-
- writeLooseRef("refs/heads/A", A);
- writeLooseRef("refs/tags/v1.0", v1_0);
-
- tags = refdir.getRefs(R_TAGS);
- assertEquals(1, tags.size());
-
- a = tags.get("v1.0");
-
- assertEquals("refs/tags/v1.0", a.getName());
- assertEquals(v1_0, a.getObjectId());
- }
-
- @Test
- public void testGetRefs_LooseSortedCorrectly() throws IOException {
- Map<String, Ref> refs;
-
- writeLooseRef("refs/heads/project1/A", A);
- writeLooseRef("refs/heads/project1-B", B);
-
- refs = refdir.getRefs(RefDatabase.ALL);
- assertEquals(2, refs.size());
- assertEquals(A, refs.get("refs/heads/project1/A").getObjectId());
- assertEquals(B, refs.get("refs/heads/project1-B").getObjectId());
- }
-
- @Test
- public void testGetRefs_LooseSorting_Bug_348834() throws IOException {
- Map<String, Ref> refs;
-
- writeLooseRef("refs/heads/my/a+b", A);
- writeLooseRef("refs/heads/my/a/b/c", B);
-
- final int[] count = new int[1];
-
- ListenerHandle listener = Repository.getGlobalListenerList()
- .addRefsChangedListener((RefsChangedEvent event) -> {
- count[0]++;
- });
-
- refs = refdir.getRefs(RefDatabase.ALL);
- refs = refdir.getRefs(RefDatabase.ALL);
- listener.remove();
- assertEquals(1, count[0]); // Bug 348834 multiple RefsChangedEvents
- assertEquals(2, refs.size());
- assertEquals(A, refs.get("refs/heads/my/a+b").getObjectId());
- assertEquals(B, refs.get("refs/heads/my/a/b/c").getObjectId());
-
- }
-
- @Test
- public void testGetRefs_TagsOnly_AllPacked() throws IOException {
- Map<String, Ref> tags;
- Ref a;
-
- deleteLooseRef(HEAD);
- writePackedRef("refs/tags/v1.0", v1_0);
-
- tags = refdir.getRefs(R_TAGS);
- assertEquals(1, tags.size());
-
- a = tags.get("v1.0");
-
- assertEquals("refs/tags/v1.0", a.getName());
- assertEquals(v1_0, a.getObjectId());
- }
-
- @Test
- public void testGetRefs_DiscoversNewLoose1() throws IOException {
- Map<String, Ref> orig, next;
- Ref orig_r, next_r;
-
- writeLooseRef("refs/heads/master", A);
- orig = refdir.getRefs(RefDatabase.ALL);
-
- writeLooseRef("refs/heads/next", B);
- next = refdir.getRefs(RefDatabase.ALL);
-
- assertEquals(2, orig.size());
- assertEquals(3, next.size());
-
- assertFalse(orig.containsKey("refs/heads/next"));
- assertTrue(next.containsKey("refs/heads/next"));
-
- orig_r = orig.get("refs/heads/master");
- next_r = next.get("refs/heads/master");
- assertEquals(A, orig_r.getObjectId());
- assertSame("uses cached instance", orig_r, next_r);
- assertSame("same HEAD", orig_r, orig.get(HEAD).getTarget());
- assertSame("same HEAD", orig_r, next.get(HEAD).getTarget());
-
- next_r = next.get("refs/heads/next");
- assertSame(LOOSE, next_r.getStorage());
- assertEquals(B, next_r.getObjectId());
- }
-
- @Test
- public void testGetRefs_DiscoversNewLoose2() throws IOException {
- Map<String, Ref> orig, next, news;
-
- writeLooseRef("refs/heads/pu", A);
- orig = refdir.getRefs(RefDatabase.ALL);
-
- writeLooseRef("refs/heads/new/B", B);
- news = refdir.getRefs("refs/heads/new/");
- next = refdir.getRefs(RefDatabase.ALL);
-
- assertEquals(1, orig.size());
- assertEquals(2, next.size());
- assertEquals(1, news.size());
-
- assertTrue(orig.containsKey("refs/heads/pu"));
- assertTrue(next.containsKey("refs/heads/pu"));
- assertFalse(news.containsKey("refs/heads/pu"));
-
- assertFalse(orig.containsKey("refs/heads/new/B"));
- assertTrue(next.containsKey("refs/heads/new/B"));
- assertTrue(news.containsKey("B"));
- }
-
- @Test
- public void testGetRefs_DiscoversModifiedLoose() throws IOException {
- Map<String, Ref> all;
-
- writeLooseRef("refs/heads/master", A);
- all = refdir.getRefs(RefDatabase.ALL);
- assertEquals(A, all.get(HEAD).getObjectId());
-
- writeLooseRef("refs/heads/master", B);
- all = refdir.getRefs(RefDatabase.ALL);
- assertEquals(B, all.get(HEAD).getObjectId());
- }
-
- @Repeat(n = 100, abortOnFailure = false)
- @Test
- public void testFindRef_DiscoversModifiedLoose() throws IOException {
- Map<String, Ref> all;
-
- writeLooseRef("refs/heads/master", A);
- all = refdir.getRefs(RefDatabase.ALL);
- assertEquals(A, all.get(HEAD).getObjectId());
-
- writeLooseRef("refs/heads/master", B);
-
- Ref master = refdir.findRef("refs/heads/master");
- assertEquals(B, master.getObjectId());
- }
-
- @Test
- public void testGetRefs_DiscoversDeletedLoose1() throws IOException {
- Map<String, Ref> orig, next;
- Ref orig_r, next_r;
-
- writeLooseRef("refs/heads/B", B);
- writeLooseRef("refs/heads/master", A);
- orig = refdir.getRefs(RefDatabase.ALL);
-
- deleteLooseRef("refs/heads/B");
- next = refdir.getRefs(RefDatabase.ALL);
-
- assertEquals(3, orig.size());
- assertEquals(2, next.size());
-
- assertTrue(orig.containsKey("refs/heads/B"));
- assertFalse(next.containsKey("refs/heads/B"));
-
- orig_r = orig.get("refs/heads/master");
- next_r = next.get("refs/heads/master");
- assertEquals(A, orig_r.getObjectId());
- assertSame("uses cached instance", orig_r, next_r);
- assertSame("same HEAD", orig_r, orig.get(HEAD).getTarget());
- assertSame("same HEAD", orig_r, next.get(HEAD).getTarget());
-
- orig_r = orig.get("refs/heads/B");
- assertSame(LOOSE, orig_r.getStorage());
- assertEquals(B, orig_r.getObjectId());
- }
-
- @Test
- public void testFindRef_DiscoversDeletedLoose() throws IOException {
- Map<String, Ref> all;
-
- writeLooseRef("refs/heads/master", A);
- all = refdir.getRefs(RefDatabase.ALL);
- assertEquals(A, all.get(HEAD).getObjectId());
-
- deleteLooseRef("refs/heads/master");
- assertNull(refdir.findRef("refs/heads/master"));
- assertTrue(refdir.getRefs(RefDatabase.ALL).isEmpty());
- }
-
- @Test
- public void testGetRefs_DiscoversDeletedLoose2() throws IOException {
- Map<String, Ref> orig, next;
-
- writeLooseRef("refs/heads/master", A);
- writeLooseRef("refs/heads/pu", B);
- orig = refdir.getRefs(RefDatabase.ALL);
-
- deleteLooseRef("refs/heads/pu");
- next = refdir.getRefs(RefDatabase.ALL);
-
- assertEquals(3, orig.size());
- assertEquals(2, next.size());
-
- assertTrue(orig.containsKey("refs/heads/pu"));
- assertFalse(next.containsKey("refs/heads/pu"));
- }
-
- @Test
- public void testGetRefs_DiscoversDeletedLoose3() throws IOException {
- Map<String, Ref> orig, next;
-
- writeLooseRef("refs/heads/master", A);
- writeLooseRef("refs/heads/next", B);
- writeLooseRef("refs/heads/pu", B);
- writeLooseRef("refs/tags/v1.0", v1_0);
- orig = refdir.getRefs(RefDatabase.ALL);
-
- deleteLooseRef("refs/heads/pu");
- deleteLooseRef("refs/heads/next");
- next = refdir.getRefs(RefDatabase.ALL);
-
- assertEquals(5, orig.size());
- assertEquals(3, next.size());
-
- assertTrue(orig.containsKey("refs/heads/pu"));
- assertTrue(orig.containsKey("refs/heads/next"));
- assertFalse(next.containsKey("refs/heads/pu"));
- assertFalse(next.containsKey("refs/heads/next"));
- }
-
- @Test
- public void testGetRefs_DiscoversDeletedLoose4() throws IOException {
- Map<String, Ref> orig, next;
- Ref orig_r, next_r;
-
- writeLooseRef("refs/heads/B", B);
- writeLooseRef("refs/heads/master", A);
- orig = refdir.getRefs(RefDatabase.ALL);
-
- deleteLooseRef("refs/heads/master");
- next = refdir.getRefs("refs/heads/");
-
- assertEquals(3, orig.size());
- assertEquals(1, next.size());
-
- assertTrue(orig.containsKey("refs/heads/B"));
- assertTrue(orig.containsKey("refs/heads/master"));
- assertTrue(next.containsKey("B"));
- assertFalse(next.containsKey("master"));
-
- orig_r = orig.get("refs/heads/B");
- next_r = next.get("B");
- assertEquals(B, orig_r.getObjectId());
- assertSame("uses cached instance", orig_r, next_r);
- }
-
- @Test
- public void testGetRefs_DiscoversDeletedLoose5() throws IOException {
- Map<String, Ref> orig, next;
-
- writeLooseRef("refs/heads/master", A);
- writeLooseRef("refs/heads/pu", B);
- orig = refdir.getRefs(RefDatabase.ALL);
-
- deleteLooseRef("refs/heads/pu");
- writeLooseRef("refs/tags/v1.0", v1_0);
- next = refdir.getRefs(RefDatabase.ALL);
-
- assertEquals(3, orig.size());
- assertEquals(3, next.size());
-
- assertTrue(orig.containsKey("refs/heads/pu"));
- assertFalse(orig.containsKey("refs/tags/v1.0"));
- assertFalse(next.containsKey("refs/heads/pu"));
- assertTrue(next.containsKey("refs/tags/v1.0"));
- }
-
- @Test
- public void testGetRefs_SkipsLockFiles() throws IOException {
- Map<String, Ref> all;
-
- writeLooseRef("refs/heads/master", A);
- writeLooseRef("refs/heads/pu.lock", B);
- all = refdir.getRefs(RefDatabase.ALL);
-
- assertEquals(2, all.size());
-
- assertTrue(all.containsKey(HEAD));
- assertTrue(all.containsKey("refs/heads/master"));
- assertFalse(all.containsKey("refs/heads/pu.lock"));
- }
-
- @Test
- public void testGetRefs_CycleInSymbolicRef() throws IOException {
- Map<String, Ref> all;
- Ref r;
-
- writeLooseRef("refs/1", "ref: refs/2\n");
- writeLooseRef("refs/2", "ref: refs/3\n");
- writeLooseRef("refs/3", "ref: refs/4\n");
- writeLooseRef("refs/4", "ref: refs/5\n");
- writeLooseRef("refs/5", "ref: refs/end\n");
- writeLooseRef("refs/end", A);
-
- all = refdir.getRefs(RefDatabase.ALL);
- r = all.get("refs/1");
- assertNotNull("has 1", r);
-
- assertEquals("refs/1", r.getName());
- assertEquals(A, r.getObjectId());
- assertTrue(r.isSymbolic());
-
- r = r.getTarget();
- assertEquals("refs/2", r.getName());
- assertEquals(A, r.getObjectId());
- assertTrue(r.isSymbolic());
-
- r = r.getTarget();
- assertEquals("refs/3", r.getName());
- assertEquals(A, r.getObjectId());
- assertTrue(r.isSymbolic());
-
- r = r.getTarget();
- assertEquals("refs/4", r.getName());
- assertEquals(A, r.getObjectId());
- assertTrue(r.isSymbolic());
-
- r = r.getTarget();
- assertEquals("refs/5", r.getName());
- assertEquals(A, r.getObjectId());
- assertTrue(r.isSymbolic());
-
- r = r.getTarget();
- assertEquals("refs/end", r.getName());
- assertEquals(A, r.getObjectId());
- assertFalse(r.isSymbolic());
-
- writeLooseRef("refs/5", "ref: refs/6\n");
- writeLooseRef("refs/6", "ref: refs/end\n");
- all = refdir.getRefs(RefDatabase.ALL);
- r = all.get("refs/1");
- assertNull("mising 1 due to cycle", r);
- }
-
- @Test
- public void testFindRef_CycleInSymbolicRef() throws IOException {
- Ref r;
-
- writeLooseRef("refs/1", "ref: refs/2\n");
- writeLooseRef("refs/2", "ref: refs/3\n");
- writeLooseRef("refs/3", "ref: refs/4\n");
- writeLooseRef("refs/4", "ref: refs/5\n");
- writeLooseRef("refs/5", "ref: refs/end\n");
- writeLooseRef("refs/end", A);
-
- r = refdir.findRef("1");
- assertEquals("refs/1", r.getName());
- assertEquals(A, r.getObjectId());
- assertTrue(r.isSymbolic());
-
- writeLooseRef("refs/5", "ref: refs/6\n");
- writeLooseRef("refs/6", "ref: refs/end\n");
-
- r = refdir.findRef("1");
- assertNull("missing 1 due to cycle", r);
-
- writeLooseRef("refs/heads/1", B);
-
- r = refdir.findRef("1");
- assertEquals("refs/heads/1", r.getName());
- assertEquals(B, r.getObjectId());
- assertFalse(r.isSymbolic());
- }
-
- @Test
- public void testGetRefs_PackedNotPeeled_Sorted() throws IOException {
- Map<String, Ref> all;
-
- writePackedRefs("" + //
- A.name() + " refs/heads/master\n" + //
- B.name() + " refs/heads/other\n" + //
- v1_0.name() + " refs/tags/v1.0\n");
- all = refdir.getRefs(RefDatabase.ALL);
-
- assertEquals(4, all.size());
- final Ref head = all.get(HEAD);
- final Ref master = all.get("refs/heads/master");
- final Ref other = all.get("refs/heads/other");
- final Ref tag = all.get("refs/tags/v1.0");
-
- assertEquals(A, master.getObjectId());
- assertFalse(master.isPeeled());
- assertNull(master.getPeeledObjectId());
-
- assertEquals(B, other.getObjectId());
- assertFalse(other.isPeeled());
- assertNull(other.getPeeledObjectId());
-
- assertSame(master, head.getTarget());
- assertEquals(A, head.getObjectId());
- assertFalse(head.isPeeled());
- assertNull(head.getPeeledObjectId());
-
- assertEquals(v1_0, tag.getObjectId());
- assertFalse(tag.isPeeled());
- assertNull(tag.getPeeledObjectId());
- }
-
- @Test
- public void testFindRef_PackedNotPeeled_WrongSort() throws IOException {
- writePackedRefs("" + //
- v1_0.name() + " refs/tags/v1.0\n" + //
- B.name() + " refs/heads/other\n" + //
- A.name() + " refs/heads/master\n");
-
- final Ref head = refdir.findRef(HEAD);
- final Ref master = refdir.findRef("refs/heads/master");
- final Ref other = refdir.findRef("refs/heads/other");
- final Ref tag = refdir.findRef("refs/tags/v1.0");
-
- assertEquals(A, master.getObjectId());
- assertFalse(master.isPeeled());
- assertNull(master.getPeeledObjectId());
-
- assertEquals(B, other.getObjectId());
- assertFalse(other.isPeeled());
- assertNull(other.getPeeledObjectId());
-
- assertSame(master, head.getTarget());
- assertEquals(A, head.getObjectId());
- assertFalse(head.isPeeled());
- assertNull(head.getPeeledObjectId());
-
- assertEquals(v1_0, tag.getObjectId());
- assertFalse(tag.isPeeled());
- assertNull(tag.getPeeledObjectId());
- }
-
- @Test
- public void testGetRefs_PackedWithPeeled() throws IOException {
- Map<String, Ref> all;
-
- writePackedRefs("# pack-refs with: peeled \n" + //
- A.name() + " refs/heads/master\n" + //
- B.name() + " refs/heads/other\n" + //
- v1_0.name() + " refs/tags/v1.0\n" + //
- "^" + v1_0.getObject().name() + "\n");
- all = refdir.getRefs(RefDatabase.ALL);
-
- assertEquals(4, all.size());
- final Ref head = all.get(HEAD);
- final Ref master = all.get("refs/heads/master");
- final Ref other = all.get("refs/heads/other");
- final Ref tag = all.get("refs/tags/v1.0");
-
- assertEquals(A, master.getObjectId());
- assertTrue(master.isPeeled());
- assertNull(master.getPeeledObjectId());
-
- assertEquals(B, other.getObjectId());
- assertTrue(other.isPeeled());
- assertNull(other.getPeeledObjectId());
-
- assertSame(master, head.getTarget());
- assertEquals(A, head.getObjectId());
- assertTrue(head.isPeeled());
- assertNull(head.getPeeledObjectId());
-
- assertEquals(v1_0, tag.getObjectId());
- assertTrue(tag.isPeeled());
- assertEquals(v1_0.getObject(), tag.getPeeledObjectId());
- }
-
- @Test
- public void test_repack() throws Exception {
- Map<String, Ref> all;
-
- writePackedRefs("# pack-refs with: peeled \n" + //
- A.name() + " refs/heads/master\n" + //
- B.name() + " refs/heads/other\n" + //
- v1_0.name() + " refs/tags/v1.0\n" + //
- "^" + v1_0.getObject().name() + "\n");
- all = refdir.getRefs(RefDatabase.ALL);
-
- assertEquals(4, all.size());
- assertEquals(Storage.LOOSE, all.get(HEAD).getStorage());
- assertEquals(Storage.PACKED, all.get("refs/heads/master").getStorage());
- assertEquals(A.getId(), all.get("refs/heads/master").getObjectId());
- assertEquals(Storage.PACKED, all.get("refs/heads/other").getStorage());
- assertEquals(Storage.PACKED, all.get("refs/tags/v1.0").getStorage());
-
- repo.update("refs/heads/master", B.getId());
- RevTag v0_1 = repo.tag("v0.1", A);
- repo.update("refs/tags/v0.1", v0_1);
-
- all = refdir.getRefs(RefDatabase.ALL);
- assertEquals(5, all.size());
- assertEquals(Storage.LOOSE, all.get(HEAD).getStorage());
- // Why isn't the next ref LOOSE_PACKED?
- assertEquals(Storage.LOOSE, all.get("refs/heads/master")
- .getStorage());
- assertEquals(B.getId(), all.get("refs/heads/master").getObjectId());
- assertEquals(Storage.PACKED, all.get("refs/heads/other").getStorage());
- assertEquals(Storage.PACKED, all.get("refs/tags/v1.0").getStorage());
- assertEquals(Storage.LOOSE, all.get("refs/tags/v0.1").getStorage());
- assertEquals(v0_1.getId(), all.get("refs/tags/v0.1").getObjectId());
-
- all = refdir.getRefs(RefDatabase.ALL);
- refdir.pack(new ArrayList<>(all.keySet()));
-
- all = refdir.getRefs(RefDatabase.ALL);
- assertEquals(5, all.size());
- assertEquals(Storage.LOOSE, all.get(HEAD).getStorage());
- // Why isn't the next ref LOOSE_PACKED?
- assertEquals(Storage.PACKED, all.get("refs/heads/master").getStorage());
- assertEquals(B.getId(), all.get("refs/heads/master").getObjectId());
- assertEquals(Storage.PACKED, all.get("refs/heads/other").getStorage());
- assertEquals(Storage.PACKED, all.get("refs/tags/v1.0").getStorage());
- assertEquals(Storage.PACKED, all.get("refs/tags/v0.1").getStorage());
- assertEquals(v0_1.getId(), all.get("refs/tags/v0.1").getObjectId());
- }
-
- @Test
- public void testFindRef_EmptyDatabase() throws IOException {
- Ref r;
-
- r = refdir.findRef(HEAD);
- assertTrue(r.isSymbolic());
- assertSame(LOOSE, r.getStorage());
- assertEquals("refs/heads/master", r.getTarget().getName());
- assertSame(NEW, r.getTarget().getStorage());
- assertNull(r.getTarget().getObjectId());
-
- assertNull(refdir.findRef("refs/heads/master"));
- assertNull(refdir.findRef("refs/tags/v1.0"));
- assertNull(refdir.findRef("FETCH_HEAD"));
- assertNull(refdir.findRef("NOT.A.REF.NAME"));
- assertNull(refdir.findRef("master"));
- assertNull(refdir.findRef("v1.0"));
- }
-
- @Test
- public void testExactRef_EmptyDatabase() throws IOException {
- Ref r;
-
- r = refdir.exactRef(HEAD);
- assertTrue(r.isSymbolic());
- assertSame(LOOSE, r.getStorage());
- assertEquals("refs/heads/master", r.getTarget().getName());
- assertSame(NEW, r.getTarget().getStorage());
- assertNull(r.getTarget().getObjectId());
-
- assertNull(refdir.exactRef("refs/heads/master"));
- assertNull(refdir.exactRef("refs/tags/v1.0"));
- assertNull(refdir.exactRef("FETCH_HEAD"));
- assertNull(refdir.exactRef("NOT.A.REF.NAME"));
- assertNull(refdir.exactRef("master"));
- assertNull(refdir.exactRef("v1.0"));
- }
-
- @Test
- public void testGetAdditionalRefs_OrigHead() throws IOException {
- writeLooseRef("ORIG_HEAD", A);
-
- List<Ref> refs = refdir.getAdditionalRefs();
- assertEquals(1, refs.size());
-
- Ref r = refs.get(0);
- assertFalse(r.isSymbolic());
- assertEquals(A, r.getObjectId());
- assertEquals("ORIG_HEAD", r.getName());
- assertFalse(r.isPeeled());
- assertNull(r.getPeeledObjectId());
- }
-
- @Test
- public void testGetAdditionalRefs_OrigHeadBranch() throws IOException {
- writeLooseRef("refs/heads/ORIG_HEAD", A);
- List<Ref> refs = refdir.getAdditionalRefs();
- assertArrayEquals(new Ref[0], refs.toArray());
- }
-
- @Test
- public void testFindRef_FetchHead() throws IOException {
- // This is an odd special case where we need to make sure we read
- // exactly the first 40 bytes of the file and nothing further on
- // that line, or the remainder of the file.
- write(new File(diskRepo.getDirectory(), "FETCH_HEAD"), A.name()
- + "\tnot-for-merge"
- + "\tbranch 'master' of git://egit.eclipse.org/jgit\n");
-
- Ref r = refdir.findRef("FETCH_HEAD");
- assertFalse(r.isSymbolic());
- assertEquals(A, r.getObjectId());
- assertEquals("FETCH_HEAD", r.getName());
- assertFalse(r.isPeeled());
- assertNull(r.getPeeledObjectId());
- }
-
- @Test
- public void testExactRef_FetchHead() throws IOException {
- // This is an odd special case where we need to make sure we read
- // exactly the first 40 bytes of the file and nothing further on
- // that line, or the remainder of the file.
- write(new File(diskRepo.getDirectory(), "FETCH_HEAD"), A.name()
- + "\tnot-for-merge"
- + "\tbranch 'master' of git://egit.eclipse.org/jgit\n");
-
- Ref r = refdir.exactRef("FETCH_HEAD");
- assertFalse(r.isSymbolic());
- assertEquals(A, r.getObjectId());
- assertEquals("FETCH_HEAD", r.getName());
- assertFalse(r.isPeeled());
- assertNull(r.getPeeledObjectId());
- }
-
- @Test
- public void testFindRef_AnyHeadWithGarbage() throws IOException {
- write(new File(diskRepo.getDirectory(), "refs/heads/A"), A.name()
- + "012345 . this is not a standard reference\n"
- + "#and even more junk\n");
-
- Ref r = refdir.findRef("refs/heads/A");
- assertFalse(r.isSymbolic());
- assertEquals(A, r.getObjectId());
- assertEquals("refs/heads/A", r.getName());
- assertFalse(r.isPeeled());
- assertNull(r.getPeeledObjectId());
- }
-
- @Test
- public void testGetRefs_CorruptSymbolicReference() throws IOException {
- String name = "refs/heads/A";
- writeLooseRef(name, "ref: \n");
- assertTrue(refdir.getRefs(RefDatabase.ALL).isEmpty());
- }
-
- @Test
- public void testFindRef_CorruptSymbolicReference() throws IOException {
- String name = "refs/heads/A";
- writeLooseRef(name, "ref: \n");
- try {
- refdir.findRef(name);
- fail("read an invalid reference");
- } catch (IOException err) {
- String msg = err.getMessage();
- assertEquals("Not a ref: " + name + ": ref:", msg);
- }
- }
-
- @Test
- public void testGetRefs_CorruptObjectIdReference() throws IOException {
- String name = "refs/heads/A";
- String content = "zoo" + A.name();
- writeLooseRef(name, content + "\n");
- assertTrue(refdir.getRefs(RefDatabase.ALL).isEmpty());
- }
-
- @Test
- public void testFindRef_CorruptObjectIdReference() throws IOException {
- String name = "refs/heads/A";
- String content = "zoo" + A.name();
- writeLooseRef(name, content + "\n");
- try {
- refdir.findRef(name);
- fail("read an invalid reference");
- } catch (IOException err) {
- String msg = err.getMessage();
- assertEquals("Not a ref: " + name + ": " + content, msg);
- }
- }
-
- @Test
- public void testIsNameConflicting() throws IOException {
- writeLooseRef("refs/heads/a/b", A);
- writePackedRef("refs/heads/q", B);
-
- // new references cannot replace an existing container
- assertTrue(refdir.isNameConflicting("refs"));
- assertTrue(refdir.isNameConflicting("refs/heads"));
- assertTrue(refdir.isNameConflicting("refs/heads/a"));
-
- // existing reference is not conflicting
- assertFalse(refdir.isNameConflicting("refs/heads/a/b"));
-
- // new references are not conflicting
- assertFalse(refdir.isNameConflicting("refs/heads/a/d"));
- assertFalse(refdir.isNameConflicting("refs/heads/master"));
-
- // existing reference must not be used as a container
- assertTrue(refdir.isNameConflicting("refs/heads/a/b/c"));
- assertTrue(refdir.isNameConflicting("refs/heads/q/master"));
- }
-
- @Test
- public void testPeelLooseTag() throws IOException {
- writeLooseRef("refs/tags/v1_0", v1_0);
- writeLooseRef("refs/tags/current", "ref: refs/tags/v1_0\n");
-
- final Ref tag = refdir.findRef("refs/tags/v1_0");
- final Ref cur = refdir.findRef("refs/tags/current");
-
- assertEquals(v1_0, tag.getObjectId());
- assertFalse(tag.isSymbolic());
- assertFalse(tag.isPeeled());
- assertNull(tag.getPeeledObjectId());
-
- assertEquals(v1_0, cur.getObjectId());
- assertTrue(cur.isSymbolic());
- assertFalse(cur.isPeeled());
- assertNull(cur.getPeeledObjectId());
-
- final Ref tag_p = refdir.peel(tag);
- final Ref cur_p = refdir.peel(cur);
-
- assertNotSame(tag, tag_p);
- assertFalse(tag_p.isSymbolic());
- assertTrue(tag_p.isPeeled());
- assertEquals(v1_0, tag_p.getObjectId());
- assertEquals(v1_0.getObject(), tag_p.getPeeledObjectId());
- assertSame(tag_p, refdir.peel(tag_p));
-
- assertNotSame(cur, cur_p);
- assertEquals("refs/tags/current", cur_p.getName());
- assertTrue(cur_p.isSymbolic());
- assertEquals("refs/tags/v1_0", cur_p.getTarget().getName());
- assertTrue(cur_p.isPeeled());
- assertEquals(v1_0, cur_p.getObjectId());
- assertEquals(v1_0.getObject(), cur_p.getPeeledObjectId());
-
- // reuses cached peeling later, but not immediately due to
- // the implementation so we have to fetch it once.
- final Ref tag_p2 = refdir.findRef("refs/tags/v1_0");
- assertFalse(tag_p2.isSymbolic());
- assertTrue(tag_p2.isPeeled());
- assertEquals(v1_0, tag_p2.getObjectId());
- assertEquals(v1_0.getObject(), tag_p2.getPeeledObjectId());
-
- assertSame(tag_p2, refdir.findRef("refs/tags/v1_0"));
- assertSame(tag_p2, refdir.findRef("refs/tags/current").getTarget());
- assertSame(tag_p2, refdir.peel(tag_p2));
- }
-
- @Test
- public void testPeelCommit() throws IOException {
- writeLooseRef("refs/heads/master", A);
-
- Ref master = refdir.findRef("refs/heads/master");
- assertEquals(A, master.getObjectId());
- assertFalse(master.isPeeled());
- assertNull(master.getPeeledObjectId());
-
- Ref master_p = refdir.peel(master);
- assertNotSame(master, master_p);
- assertEquals(A, master_p.getObjectId());
- assertTrue(master_p.isPeeled());
- assertNull(master_p.getPeeledObjectId());
-
- // reuses cached peeling later, but not immediately due to
- // the implementation so we have to fetch it once.
- Ref master_p2 = refdir.findRef("refs/heads/master");
- assertNotSame(master, master_p2);
- assertEquals(A, master_p2.getObjectId());
- assertTrue(master_p2.isPeeled());
- assertNull(master_p2.getPeeledObjectId());
- assertSame(master_p2, refdir.peel(master_p2));
- }
-
- @Test
- public void testRefsChangedStackOverflow() throws Exception {
- final FileRepository newRepo = createBareRepository();
- final RefDatabase refDb = newRepo.getRefDatabase();
- File packedRefs = new File(newRepo.getDirectory(), "packed-refs");
- assertTrue(packedRefs.createNewFile());
- final AtomicReference<StackOverflowError> error = new AtomicReference<>();
- final AtomicReference<IOException> exception = new AtomicReference<>();
- final AtomicInteger changeCount = new AtomicInteger();
- newRepo.getListenerList()
- .addRefsChangedListener((RefsChangedEvent event) -> {
- try {
- refDb.getRefsByPrefix("ref");
- changeCount.incrementAndGet();
- } catch (StackOverflowError soe) {
- error.set(soe);
- } catch (IOException ioe) {
- exception.set(ioe);
- }
- });
- refDb.getRefsByPrefix("ref");
- refDb.getRefsByPrefix("ref");
- assertNull(error.get());
- assertNull(exception.get());
- assertEquals(1, changeCount.get());
- }
-
- @Test
- public void testPackedRefsLockFailure() throws Exception {
- writeLooseRef("refs/heads/master", A);
- refdir.setRetrySleepMs(Arrays.asList(0, 0));
- LockFile myLock = refdir.lockPackedRefs();
- try {
- refdir.pack(Arrays.asList("refs/heads/master"));
- fail("expected LockFailedException");
- } catch (LockFailedException e) {
- assertEquals(refdir.packedRefsFile.getPath(), e.getFile().getPath());
- } finally {
- myLock.unlock();
- }
- Ref ref = refdir.findRef("refs/heads/master");
- assertEquals(Storage.LOOSE, ref.getStorage());
- }
-
- private void writeLooseRef(String name, AnyObjectId id) throws IOException {
- writeLooseRef(name, id.name() + "\n");
- }
-
- private void writeLooseRef(String name, String content) throws IOException {
- write(new File(diskRepo.getDirectory(), name), content);
- }
-
- private void writePackedRef(String name, AnyObjectId id) throws IOException {
- writePackedRefs(id.name() + " " + name + "\n");
- }
-
- private void writePackedRefs(String content) throws IOException {
- File pr = new File(diskRepo.getDirectory(), "packed-refs");
- write(pr, content);
- FS fs = diskRepo.getFS();
- fs.setLastModified(pr.toPath(), Instant.now().minusSeconds(3600));
- }
-
- private void deleteLooseRef(String name) {
- File path = new File(diskRepo.getDirectory(), name);
- assertTrue("deleted " + name, path.delete());
- }
- }
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