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/*******************************************************************************
* Copyright (c) 2009, 2017 Cloudsmith Inc. and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Cloudsmith Inc. - initial API and implementation
*******************************************************************************/
package org.eclipse.equinox.p2.tests.core;
import static java.nio.file.FileVisitResult.CONTINUE;
import static java.nio.file.StandardOpenOption.CREATE_NEW;
import java.io.File;
import java.io.IOException;
import java.nio.file.FileVisitResult;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.SimpleFileVisitor;
import java.nio.file.attribute.BasicFileAttributes;
import org.eclipse.equinox.internal.p2.touchpoint.natives.SimpleBackupStore;
import org.eclipse.equinox.p2.tests.AbstractProvisioningTest;
public class BackupTest extends AbstractProvisioningTest {
private static final String BUPREFIX = "backup-test";
private Path sourceDir;
private Path aDir;
private Path aaDir;
private Path aTxt;
private Path bDir;
private Path bTxt;
private Path abDir;
private Path cTxt;
private SimpleBackupStore store;
/**
* <pre>
* /p2-backup-test
* /a
* /aa
* /a.txt
* /b.txt
* /ab
* /c.txt
* /b
* </pre>
*/
@Override
public void setUp() throws IOException {
// Don't want to backup under /tmp since it may be it's own file system or an
// in-memory file system
String userHome = System.getProperty("user.home");
sourceDir = Path.of(userHome, "p2-backup-test");
deleteAll(sourceDir);
aDir = sourceDir.resolve("a");
Files.createDirectories(aDir);
aaDir = aDir.resolve("aa");
Files.createDirectories(aaDir);
aTxt = aaDir.resolve("a.txt");
Files.write(aTxt, "A\nA file with an A".getBytes());
bTxt = aaDir.resolve("b.txt");
Files.write(bTxt, "B\nA file with a B".getBytes());
abDir = aDir.resolve("ab");
Files.createDirectories(abDir);
cTxt = abDir.resolve("c.txt");
Files.write(cTxt, "C\nA file with a C".getBytes());
bDir = sourceDir.resolve("b");
Files.createDirectories(bDir);
store = new SimpleBackupStore(null, BUPREFIX);
}
@Override
public void tearDown() throws IOException {
deleteAll(sourceDir);
}
private static void deleteAll(Path path) throws IOException {
if (!Files.exists(path)) {
return;
}
Files.walkFileTree(path, new SimpleFileVisitor<Path>() {
@Override
public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
Files.delete(file);
return CONTINUE;
}
@Override
public FileVisitResult postVisitDirectory(Path dir, IOException exc) throws IOException {
if (exc != null) {
throw exc;
}
Files.delete(dir);
return CONTINUE;
}
});
}
/**
* Test that a path containing ".." can be backed up and restored.
*/
public void testBackupRelative() throws IOException {
Path cTxtRelative = aaDir.resolve(aaDir.relativize(cTxt));
store.backup(cTxtRelative.toFile());
assertFalse(Files.exists(cTxt));
Files.write(cTxt, "XXXX\n- This file should be restored with C".getBytes());
store.restore();
assertFileContent("Restore of C failed - not original content", cTxt.toFile(), "C");
assertNoGarbage(store);
}
public void testBackupRestore() throws IOException {
store.backup(aTxt.toFile());
assertFalse("File not moved to backup - still exists", Files.exists(aTxt));
Files.write(aTxt, "XXXX\n- This file should be restored with A".getBytes());
store.backup(bDir.toFile());
assertFalse("Backed up directory was not moved", Files.isDirectory(bDir));
store.backupCopy(bTxt.toFile());
assertFileContent("File should have been copied", bTxt.toFile(), "B");
store.restore();
assertFileContent("Restore of A failed - not original content", aTxt.toFile(), "A");
assertTrue("Empty directory not restored ok", Files.isDirectory(bDir) && Files.list(bDir).count() == 0);
assertNoGarbage(store);
}
public void testBackupDiscard() throws IOException {
store.backup(aTxt.toFile());
assertFalse("File not moved to backup - still exists", Files.exists(aTxt));
Files.write(aTxt, "XXXX\n- This file should be restored with A".getBytes());
store.backup(bDir.toFile());
assertFalse("Backed up directory was not moved", Files.exists(bDir));
store.discard();
assertFileContent("Discard of a.txt failed - not new content", aTxt.toFile(), "XXXX");
assertFalse("Empty directory not discarded - still exists", Files.isDirectory(bDir));
assertNoGarbage(store);
}
public void testBackupAll() throws IOException {
store.backupAll(aDir.toFile());
assertFalse("File not moved to backup - still exists", Files.exists(aTxt));
assertFalse("File bTxt not moved to backup - still exists", Files.exists(bTxt));
Files.createDirectories(aTxt.getParent());
Files.write(aTxt, "XXXX\n- This file should be restored with A".getBytes(), CREATE_NEW);
store.restore();
assertFileContent("A not restored", aTxt.toFile(), "A");
assertFileContent("B not restored", bTxt.toFile(), "B");
assertNoGarbage(store);
}
public void testBackupCopyAll() throws IOException {
store.backupCopyAll(aDir.toFile());
assertTrue("File not copied to backup - does not exist", Files.exists(aTxt));
assertTrue("File bTxt not copied to backup - does not exists", Files.exists(bTxt));
Files.write(aTxt, "XXXX\n- This file should be restored with A".getBytes());
Files.write(bTxt, "XXXX\n- This file should be restored with B".getBytes());
store.restore();
assertFileContent("A not restored", aTxt.toFile(), "A");
assertFileContent("B not restored", bTxt.toFile(), "B");
assertNoGarbage(store);
}
private static void assertNoGarbage(SimpleBackupStore store) {
File buDir = store.getBackupRoot();
assertFalse("Backup directory not cleaned up", buDir.exists());
}
}
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