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/*
* Copyright (C) 2018 Ericsson 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.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().get();
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());
}
@Test
public void emptyRefFoldersSkipFiles() throws Exception {
FileTime fileTime = FileTime.from(Instant.now().minusSeconds(31));
Path refFile = Files.createFile(refsDir.resolve(".DS_Store"));
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().get();
assertTrue(Files.exists(refFile));
}
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().get();
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().get();
assertTrue(refDir01.toFile().exists());
assertTrue(refDir02.toFile().exists());
assertTrue(ref01.toFile().exists());
assertTrue(ref02.toFile().exists());
}
}
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