1 /*
2 * Copyright (C) 2013, Christian Halstrick <christian.halstrick@sap.com>
3 * and other copyright owners as documented in the project's IP log.
4 *
5 * This program and the accompanying materials are made available under the
6 * terms of the Eclipse Distribution License v1.0 which accompanies this
7 * distribution, is reproduced below, and is available at
8 * http://www.eclipse.org/org/documents/edl-v10.php
9 *
10 * All rights reserved.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions are met:
14 *
15 * - Redistributions of source code must retain the above copyright notice, this
16 * list of conditions and the following disclaimer.
17 *
18 * - Redistributions in binary form must reproduce the above copyright notice,
19 * this list of conditions and the following disclaimer in the documentation
20 * and/or other materials provided with the distribution.
21 *
22 * - Neither the name of the Eclipse Foundation, Inc. nor the names of its
23 * contributors may be used to endorse or promote products derived from this
24 * software without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
27 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
30 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 * POSSIBILITY OF SUCH DAMAGE.
37 */
38 package org.eclipse.jgit.lib;
39
40 import static org.junit.Assert.assertTrue;
41
42 import java.io.File;
43
44 import org.eclipse.jgit.api.Git;
45 import org.eclipse.jgit.internal.storage.file.FileRepository;
46 import org.eclipse.jgit.junit.RepositoryTestCase;
47 import org.eclipse.jgit.revwalk.RevCommit;
48 import org.eclipse.jgit.storage.file.FileRepositoryBuilder;
49 import org.eclipse.jgit.util.FS;
50 import org.eclipse.jgit.util.FileUtils;
51 import org.junit.Before;
52 import org.junit.Test;
53
54 public class DirCacheCheckoutTestWithSymlinks extends RepositoryTestCase {
55 @Before
56 public void beforeMethod() {
57 // If this assumption fails the tests are skipped. When running on a
58 // filesystem not supporting symlinks I don't want this tests
59 org.junit.Assume.assumeTrue(FS.DETECTED.supportsSymlinks());
60 }
61
62 @Test
63 public void testDontDeleteSymlinkOnTopOfRootDir() throws Exception {
64 // create a parent folder containing a folder with a test repository
65 File repos = createTempDirectory("repos");
66 File testRepo = new File(repos, "repo");
67 testRepo.mkdirs();
68 Git git = Git.init().setDirectory(testRepo).call();
69 db = (FileRepository) git.getRepository();
70
71 // Create a situation where a checkout of master whould delete a file in
72 // a subfolder of the root of the worktree. No other files/folders exist
73 writeTrashFile("d/f", "f");
74 git.add().addFilepattern(".").call();
75 RevCommit initial = git.commit().setMessage("inital").call();
76 git.rm().addFilepattern("d/f").call();
77 git.commit().setMessage("modifyOnMaster").call();
78 git.checkout().setCreateBranch(true).setName("side")
79 .setStartPoint(initial).call();
80 writeTrashFile("d/f", "f2");
81 git.add().addFilepattern(".").call();
82 git.commit().setMessage("modifyOnSide").call();
83 git.getRepository().close();
84
85 // Create a symlink pointing to the parent folder of the repo and open
86 // the repo with the path containing the symlink
87 File reposSymlink = createTempFile();
88 FileUtils.createSymLink(reposSymlink, repos.getPath());
89
90 Repository symlinkDB = FileRepositoryBuilder.create(new File(
91 reposSymlink, "repo/.git"));
92 Git symlinkRepo = Git.wrap(symlinkDB);
93 symlinkRepo.checkout().setName("master").call();
94
95 // check that the symlink still exists
96 assertTrue("The symlink to the repo should exist after a checkout",
97 reposSymlink.exists());
98 }
99 }