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/*
* Copyright (C) 2018 Ericsson
* 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.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.attribute.FileTime;
import java.time.Instant;
import org.junit.Before;
import org.junit.Test;
public class GcDeleteEmptyRefsFoldersTest extends GcTestCase {
private static final String REF_FOLDER_01 = "A/B/01";
private static final String REF_FOLDER_02 = "C/D/02";
private Path refsDir;
private Path heads;
@Override
@Before
public void setUp() throws Exception {
super.setUp();
refsDir = Paths.get(repo.getDirectory().getAbsolutePath())
.resolve("refs");
heads = refsDir.resolve("heads");
}
@Test
public void emptyRefFoldersAreDeleted() throws Exception {
FileTime fileTime = FileTime.from(Instant.now().minusSeconds(31));
Path refDir01 = Files.createDirectories(heads.resolve(REF_FOLDER_01));
Path refDir02 = Files.createDirectories(heads.resolve(REF_FOLDER_02));
setLastModifiedTime(fileTime, heads, REF_FOLDER_01);
setLastModifiedTime(fileTime, heads, REF_FOLDER_02);
assertTrue(refDir01.toFile().exists());
assertTrue(refDir02.toFile().exists());
gc.gc();
assertFalse(refDir01.toFile().exists());
assertFalse(refDir01.getParent().toFile().exists());
assertFalse(refDir01.getParent().getParent().toFile().exists());
assertFalse(refDir02.toFile().exists());
assertFalse(refDir02.getParent().toFile().exists());
assertFalse(refDir02.getParent().getParent().toFile().exists());
}
private void setLastModifiedTime(FileTime fileTime, Path path, String folder) throws IOException {
long numParents = folder.chars().filter(c -> c == '/').count();
Path folderPath = path.resolve(folder);
for(int folderLevel = 0; folderLevel <= numParents; folderLevel ++ ) {
Files.setLastModifiedTime(folderPath, fileTime);
folderPath = folderPath.getParent();
}
}
@Test
public void emptyRefFoldersAreKeptIfTheyAreTooRecent()
throws Exception {
Path refDir01 = Files.createDirectories(heads.resolve(REF_FOLDER_01));
Path refDir02 = Files.createDirectories(heads.resolve(REF_FOLDER_02));
assertTrue(refDir01.toFile().exists());
assertTrue(refDir02.toFile().exists());
gc.gc();
assertTrue(refDir01.toFile().exists());
assertTrue(refDir02.toFile().exists());
}
@Test
public void nonEmptyRefsFoldersAreKept() throws Exception {
Path refDir01 = Files.createDirectories(heads.resolve(REF_FOLDER_01));
Path refDir02 = Files.createDirectories(heads.resolve(REF_FOLDER_02));
Path ref01 = Files.createFile(refDir01.resolve("ref01"));
Path ref02 = Files.createFile(refDir01.resolve("ref02"));
assertTrue(refDir01.toFile().exists());
assertTrue(refDir02.toFile().exists());
assertTrue(ref01.toFile().exists());
assertTrue(ref02.toFile().exists());
gc.gc();
assertTrue(refDir01.toFile().exists());
assertTrue(refDir02.toFile().exists());
assertTrue(ref01.toFile().exists());
assertTrue(ref02.toFile().exists());
}
}
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