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- /*
- * Copyright (C) 2009, Google Inc.
- * Copyright (C) 2008, Imran M Yousuf <imyousuf@smartitengineering.com>
- * Copyright (C) 2007-2008, Robin Rosenberg <robin.rosenberg@dewire.com>
- * Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org>
- * 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.transport;
-
- import static org.junit.Assert.assertTrue;
-
- import java.io.ByteArrayInputStream;
- import java.io.File;
- import java.io.FileInputStream;
- import java.io.IOException;
- import java.io.InputStream;
- import java.security.MessageDigest;
- import java.util.zip.Deflater;
-
- import org.eclipse.jgit.junit.JGitTestUtil;
- import org.eclipse.jgit.junit.TestRepository;
- import org.eclipse.jgit.lib.Constants;
- import org.eclipse.jgit.lib.NullProgressMonitor;
- import org.eclipse.jgit.lib.ObjectId;
- import org.eclipse.jgit.lib.ObjectInserter;
- import org.eclipse.jgit.lib.Repository;
- import org.eclipse.jgit.lib.RepositoryTestCase;
- import org.eclipse.jgit.revwalk.RevBlob;
- import org.eclipse.jgit.storage.file.ObjectDirectoryPackParser;
- import org.eclipse.jgit.storage.file.PackFile;
- import org.eclipse.jgit.util.NB;
- import org.eclipse.jgit.util.TemporaryBuffer;
- import org.junit.After;
- import org.junit.Test;
-
- /**
- * Test indexing of git packs. A pack is read from a stream, copied
- * to a new pack and an index is created. Then the packs are tested
- * to make sure they contain the expected objects (well we don't test
- * for all of them unless the packs are very small).
- */
- public class PackParserTest extends RepositoryTestCase {
- /**
- * Test indexing one of the test packs in the egit repo. It has deltas.
- *
- * @throws IOException
- */
- @Test
- public void test1() throws IOException {
- File packFile = JGitTestUtil.getTestResourceFile("pack-34be9032ac282b11fa9babdc2b2a93ca996c9c2f.pack");
- final InputStream is = new FileInputStream(packFile);
- try {
- ObjectDirectoryPackParser p = (ObjectDirectoryPackParser) index(is);
- p.parse(NullProgressMonitor.INSTANCE);
- PackFile file = p.getPackFile();
-
- assertTrue(file.hasObject(ObjectId.fromString("4b825dc642cb6eb9a060e54bf8d69288fbee4904")));
- assertTrue(file.hasObject(ObjectId.fromString("540a36d136cf413e4b064c2b0e0a4db60f77feab")));
- assertTrue(file.hasObject(ObjectId.fromString("5b6e7c66c276e7610d4a73c70ec1a1f7c1003259")));
- assertTrue(file.hasObject(ObjectId.fromString("6ff87c4664981e4397625791c8ea3bbb5f2279a3")));
- assertTrue(file.hasObject(ObjectId.fromString("82c6b885ff600be425b4ea96dee75dca255b69e7")));
- assertTrue(file.hasObject(ObjectId.fromString("902d5476fa249b7abc9d84c611577a81381f0327")));
- assertTrue(file.hasObject(ObjectId.fromString("aabf2ffaec9b497f0950352b3e582d73035c2035")));
- assertTrue(file.hasObject(ObjectId.fromString("c59759f143fb1fe21c197981df75a7ee00290799")));
- } finally {
- is.close();
- }
- }
-
- /**
- * This is just another pack. It so happens that we have two convenient pack to
- * test with in the repository.
- *
- * @throws IOException
- */
- @Test
- public void test2() throws IOException {
- File packFile = JGitTestUtil.getTestResourceFile("pack-df2982f284bbabb6bdb59ee3fcc6eb0983e20371.pack");
- final InputStream is = new FileInputStream(packFile);
- try {
- ObjectDirectoryPackParser p = (ObjectDirectoryPackParser) index(is);
- p.parse(NullProgressMonitor.INSTANCE);
- PackFile file = p.getPackFile();
-
- assertTrue(file.hasObject(ObjectId.fromString("02ba32d3649e510002c21651936b7077aa75ffa9")));
- assertTrue(file.hasObject(ObjectId.fromString("0966a434eb1a025db6b71485ab63a3bfbea520b6")));
- assertTrue(file.hasObject(ObjectId.fromString("09efc7e59a839528ac7bda9fa020dc9101278680")));
- assertTrue(file.hasObject(ObjectId.fromString("0a3d7772488b6b106fb62813c4d6d627918d9181")));
- assertTrue(file.hasObject(ObjectId.fromString("1004d0d7ac26fbf63050a234c9b88a46075719d3")));
- assertTrue(file.hasObject(ObjectId.fromString("10da5895682013006950e7da534b705252b03be6")));
- assertTrue(file.hasObject(ObjectId.fromString("1203b03dc816ccbb67773f28b3c19318654b0bc8")));
- assertTrue(file.hasObject(ObjectId.fromString("15fae9e651043de0fd1deef588aa3fbf5a7a41c6")));
- assertTrue(file.hasObject(ObjectId.fromString("16f9ec009e5568c435f473ba3a1df732d49ce8c3")));
- assertTrue(file.hasObject(ObjectId.fromString("1fd7d579fb6ae3fe942dc09c2c783443d04cf21e")));
- assertTrue(file.hasObject(ObjectId.fromString("20a8ade77639491ea0bd667bf95de8abf3a434c8")));
- assertTrue(file.hasObject(ObjectId.fromString("2675188fd86978d5bc4d7211698b2118ae3bf658")));
- // and lots more...
- } finally {
- is.close();
- }
- }
-
- @Test
- public void testTinyThinPack() throws Exception {
- TestRepository d = new TestRepository(db);
- RevBlob a = d.blob("a");
-
- TemporaryBuffer.Heap pack = new TemporaryBuffer.Heap(1024);
-
- packHeader(pack, 1);
-
- pack.write((Constants.OBJ_REF_DELTA) << 4 | 4);
- a.copyRawTo(pack);
- deflate(pack, new byte[] { 0x1, 0x1, 0x1, 'b' });
-
- digest(pack);
-
- PackParser p = index(new ByteArrayInputStream(pack.toByteArray()));
- p.setAllowThin(true);
- p.parse(NullProgressMonitor.INSTANCE);
- }
-
- @Test
- public void testPackWithDuplicateBlob() throws Exception {
- final byte[] data = Constants.encode("0123456789abcdefg");
- TestRepository<Repository> d = new TestRepository<Repository>(db);
- assertTrue(db.hasObject(d.blob(data)));
-
- TemporaryBuffer.Heap pack = new TemporaryBuffer.Heap(1024);
- packHeader(pack, 1);
- pack.write((Constants.OBJ_BLOB) << 4 | 0x80 | 1);
- pack.write(1);
- deflate(pack, data);
- digest(pack);
-
- PackParser p = index(new ByteArrayInputStream(pack.toByteArray()));
- p.setAllowThin(false);
- p.parse(NullProgressMonitor.INSTANCE);
- }
-
- private void packHeader(TemporaryBuffer.Heap tinyPack, int cnt)
- throws IOException {
- final byte[] hdr = new byte[8];
- NB.encodeInt32(hdr, 0, 2);
- NB.encodeInt32(hdr, 4, cnt);
-
- tinyPack.write(Constants.PACK_SIGNATURE);
- tinyPack.write(hdr, 0, 8);
- }
-
- private void deflate(TemporaryBuffer.Heap tinyPack, final byte[] content)
- throws IOException {
- final Deflater deflater = new Deflater();
- final byte[] buf = new byte[128];
- deflater.setInput(content, 0, content.length);
- deflater.finish();
- do {
- final int n = deflater.deflate(buf, 0, buf.length);
- if (n > 0)
- tinyPack.write(buf, 0, n);
- } while (!deflater.finished());
- }
-
- private void digest(TemporaryBuffer.Heap buf) throws IOException {
- MessageDigest md = Constants.newMessageDigest();
- md.update(buf.toByteArray());
- buf.write(md.digest());
- }
-
- private ObjectInserter inserter;
-
- @After
- public void release() {
- if (inserter != null)
- inserter.release();
- }
-
- private PackParser index(InputStream in) throws IOException {
- if (inserter == null)
- inserter = db.newObjectInserter();
- return inserter.newPackParser(in);
- }
- }
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