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- /*
- * Copyright (C) 2008-2010, Google Inc.
- * 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.dircache;
-
- import static org.eclipse.jgit.junit.Assert.assertEquals;
- import static org.junit.Assert.assertArrayEquals;
- import static org.junit.Assert.assertEquals;
- import static org.junit.Assert.assertNotNull;
- import static org.junit.Assert.assertTrue;
- import static org.junit.Assert.fail;
-
- import java.io.BufferedReader;
- import java.io.ByteArrayOutputStream;
- import java.io.File;
- import java.io.FileInputStream;
- import java.io.InputStreamReader;
- import java.util.ArrayList;
- import java.util.Iterator;
- import java.util.LinkedHashMap;
- import java.util.Map;
-
- import org.eclipse.jgit.errors.CorruptObjectException;
- import org.eclipse.jgit.junit.JGitTestUtil;
- import org.eclipse.jgit.junit.LocalDiskRepositoryTestCase;
- import org.eclipse.jgit.lib.FileMode;
- import org.eclipse.jgit.lib.ObjectId;
- import org.eclipse.jgit.lib.Repository;
- import org.eclipse.jgit.treewalk.TreeWalk;
- import org.eclipse.jgit.util.FS;
- import org.eclipse.jgit.util.IO;
- import org.junit.Test;
-
- public class DirCacheCGitCompatabilityTest extends LocalDiskRepositoryTestCase {
- private final File index = pathOf("gitgit.index");
-
- @Test
- public void testReadIndex_LsFiles() throws Exception {
- final Map<String, CGitIndexRecord> ls = readLsFiles();
- final DirCache dc = new DirCache(index, FS.DETECTED);
- assertEquals(0, dc.getEntryCount());
- dc.read();
- assertEquals(ls.size(), dc.getEntryCount());
- {
- final Iterator<CGitIndexRecord> rItr = ls.values().iterator();
- for (int i = 0; rItr.hasNext(); i++)
- assertEqual(rItr.next(), dc.getEntry(i));
- }
- }
-
- @Test
- public void testTreeWalk_LsFiles() throws Exception {
- final Repository db = createBareRepository();
- final Map<String, CGitIndexRecord> ls = readLsFiles();
- final DirCache dc = new DirCache(index, db.getFS());
- assertEquals(0, dc.getEntryCount());
- dc.read();
- assertEquals(ls.size(), dc.getEntryCount());
- {
- final Iterator<CGitIndexRecord> rItr = ls.values().iterator();
- try (final TreeWalk tw = new TreeWalk(db)) {
- tw.setRecursive(true);
- tw.addTree(new DirCacheIterator(dc));
- while (rItr.hasNext()) {
- final DirCacheIterator dcItr;
-
- assertTrue(tw.next());
- dcItr = tw.getTree(0, DirCacheIterator.class);
- assertNotNull(dcItr);
-
- assertEqual(rItr.next(), dcItr.getDirCacheEntry());
- }
- }
- }
- }
-
- @Test
- public void testUnsupportedOptionalExtension() throws Exception {
- final DirCache dc = new DirCache(pathOf("gitgit.index.ZZZZ"),
- FS.DETECTED);
- dc.read();
- assertEquals(1, dc.getEntryCount());
- assertEquals("A", dc.getEntry(0).getPathString());
- }
-
- @Test
- public void testUnsupportedRequiredExtension() throws Exception {
- final DirCache dc = new DirCache(pathOf("gitgit.index.aaaa"),
- FS.DETECTED);
- try {
- dc.read();
- fail("Cache loaded an unsupported extension");
- } catch (CorruptObjectException err) {
- assertEquals("DIRC extension 'aaaa'"
- + " not supported by this version.", err.getMessage());
- }
- }
-
- @Test
- public void testCorruptChecksumAtFooter() throws Exception {
- final DirCache dc = new DirCache(pathOf("gitgit.index.badchecksum"),
- FS.DETECTED);
- try {
- dc.read();
- fail("Cache loaded despite corrupt checksum");
- } catch (CorruptObjectException err) {
- assertEquals("DIRC checksum mismatch", err.getMessage());
- }
- }
-
- private static void assertEqual(final CGitIndexRecord c,
- final DirCacheEntry j) {
- assertNotNull(c);
- assertNotNull(j);
-
- assertEquals(c.path, j.getPathString());
- assertEquals(c.id, j.getObjectId());
- assertEquals(c.mode, j.getRawMode());
- assertEquals(c.stage, j.getStage());
- }
-
- @Test
- public void testReadIndex_DirCacheTree() throws Exception {
- final Map<String, CGitIndexRecord> cList = readLsFiles();
- final Map<String, CGitLsTreeRecord> cTree = readLsTree();
- final DirCache dc = new DirCache(index, FS.DETECTED);
- assertEquals(0, dc.getEntryCount());
- dc.read();
- assertEquals(cList.size(), dc.getEntryCount());
-
- final DirCacheTree jTree = dc.getCacheTree(false);
- assertNotNull(jTree);
- assertEquals("", jTree.getNameString());
- assertEquals("", jTree.getPathString());
- assertTrue(jTree.isValid());
- assertEquals(ObjectId
- .fromString("698dd0b8d0c299f080559a1cffc7fe029479a408"), jTree
- .getObjectId());
- assertEquals(cList.size(), jTree.getEntrySpan());
-
- final ArrayList<CGitLsTreeRecord> subtrees = new ArrayList<CGitLsTreeRecord>();
- for (final CGitLsTreeRecord r : cTree.values()) {
- if (FileMode.TREE.equals(r.mode))
- subtrees.add(r);
- }
- assertEquals(subtrees.size(), jTree.getChildCount());
-
- for (int i = 0; i < jTree.getChildCount(); i++) {
- final DirCacheTree sj = jTree.getChild(i);
- final CGitLsTreeRecord sc = subtrees.get(i);
- assertEquals(sc.path, sj.getNameString());
- assertEquals(sc.path + "/", sj.getPathString());
- assertTrue(sj.isValid());
- assertEquals(sc.id, sj.getObjectId());
- }
- }
-
- @Test
- public void testReadWriteV3() throws Exception {
- final File file = pathOf("gitgit.index.v3");
- final DirCache dc = new DirCache(file, FS.DETECTED);
- dc.read();
-
- assertEquals(10, dc.getEntryCount());
- assertV3TreeEntry(0, "dir1/file1.txt", false, false, dc);
- assertV3TreeEntry(1, "dir2/file2.txt", true, false, dc);
- assertV3TreeEntry(2, "dir3/file3.txt", false, false, dc);
- assertV3TreeEntry(3, "dir3/file3a.txt", true, false, dc);
- assertV3TreeEntry(4, "dir4/file4.txt", true, false, dc);
- assertV3TreeEntry(5, "dir4/file4a.txt", false, false, dc);
- assertV3TreeEntry(6, "file.txt", true, false, dc);
- assertV3TreeEntry(7, "newdir1/newfile1.txt", false, true, dc);
- assertV3TreeEntry(8, "newdir1/newfile2.txt", false, true, dc);
- assertV3TreeEntry(9, "newfile.txt", false, true, dc);
-
- final ByteArrayOutputStream bos = new ByteArrayOutputStream();
- dc.writeTo(null, bos);
- final byte[] indexBytes = bos.toByteArray();
- final byte[] expectedBytes = IO.readFully(file);
- assertArrayEquals(expectedBytes, indexBytes);
- }
-
- private static void assertV3TreeEntry(int indexPosition, String path,
- boolean skipWorkTree, boolean intentToAdd, DirCache dc) {
- final DirCacheEntry entry = dc.getEntry(indexPosition);
- assertEquals(path, entry.getPathString());
- assertEquals(skipWorkTree, entry.isSkipWorkTree());
- assertEquals(intentToAdd, entry.isIntentToAdd());
- }
-
- private static File pathOf(final String name) {
- return JGitTestUtil.getTestResourceFile(name);
- }
-
- private static Map<String, CGitIndexRecord> readLsFiles() throws Exception {
- final LinkedHashMap<String, CGitIndexRecord> r = new LinkedHashMap<String, CGitIndexRecord>();
- final BufferedReader br = new BufferedReader(new InputStreamReader(
- new FileInputStream(pathOf("gitgit.lsfiles")), "UTF-8"));
- try {
- String line;
- while ((line = br.readLine()) != null) {
- final CGitIndexRecord cr = new CGitIndexRecord(line);
- r.put(cr.path, cr);
- }
- } finally {
- br.close();
- }
- return r;
- }
-
- private static Map<String, CGitLsTreeRecord> readLsTree() throws Exception {
- final LinkedHashMap<String, CGitLsTreeRecord> r = new LinkedHashMap<String, CGitLsTreeRecord>();
- final BufferedReader br = new BufferedReader(new InputStreamReader(
- new FileInputStream(pathOf("gitgit.lstree")), "UTF-8"));
- try {
- String line;
- while ((line = br.readLine()) != null) {
- final CGitLsTreeRecord cr = new CGitLsTreeRecord(line);
- r.put(cr.path, cr);
- }
- } finally {
- br.close();
- }
- return r;
- }
-
- private static class CGitIndexRecord {
- final int mode;
-
- final ObjectId id;
-
- final int stage;
-
- final String path;
-
- CGitIndexRecord(final String line) {
- final int tab = line.indexOf('\t');
- final int sp1 = line.indexOf(' ');
- final int sp2 = line.indexOf(' ', sp1 + 1);
- mode = Integer.parseInt(line.substring(0, sp1), 8);
- id = ObjectId.fromString(line.substring(sp1 + 1, sp2));
- stage = Integer.parseInt(line.substring(sp2 + 1, tab));
- path = line.substring(tab + 1);
- }
- }
-
- private static class CGitLsTreeRecord {
- final int mode;
-
- final ObjectId id;
-
- final String path;
-
- CGitLsTreeRecord(final String line) {
- final int tab = line.indexOf('\t');
- final int sp1 = line.indexOf(' ');
- final int sp2 = line.indexOf(' ', sp1 + 1);
- mode = Integer.parseInt(line.substring(0, sp1), 8);
- id = ObjectId.fromString(line.substring(sp2 + 1, tab));
- path = line.substring(tab + 1);
- }
- }
- }
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