ForgePatch/src/main/java/net/minecraftforge/fml/common/ZipperUtil.java

112 lines
3.4 KiB
Java

/*
* Minecraft Forge
* Copyright (c) 2016-2018.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation version 2.1
* of the License.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
package net.minecraftforge.fml.common;
import java.io.Closeable;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.net.URI;
import java.util.Deque;
import java.util.LinkedList;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
import org.apache.logging.log4j.Level;
import com.google.common.io.Files;
/**
* Copied from http://stackoverflow.com/questions/1399126/java-util-zip-recreating-directory-structure
* because the code looked very tidy and neat. Thanks, McDowell!
*
* @author McDowell
*
*/
public class ZipperUtil {
public static void zip(File directory, File zipfile) throws IOException
{
URI base = directory.toURI();
Deque<File> queue = new LinkedList<File>();
queue.push(directory);
OutputStream out = new FileOutputStream(zipfile);
Closeable res = null;
try
{
ZipOutputStream zout = new ZipOutputStream(out);
res = zout;
while (!queue.isEmpty())
{
directory = queue.pop();
for (File kid : directory.listFiles())
{
String name = base.relativize(kid.toURI()).getPath();
if (kid.isDirectory())
{
queue.push(kid);
name = name.endsWith("/") ? name : name + "/";
zout.putNextEntry(new ZipEntry(name));
} else
{
zout.putNextEntry(new ZipEntry(name));
Files.copy(kid, zout);
zout.closeEntry();
}
}
}
} finally
{
res.close();
}
}
public static void backupWorld() throws IOException
{
String dirName = FMLCommonHandler.instance().getMinecraftServerInstance().getFolderName();
backupWorld(dirName);
}
@Deprecated
public static void backupWorld(String dirName, String saveName) throws IOException
{
backupWorld(dirName);
}
public static void backupWorld(String dirName) throws IOException
{
File dstFolder = FMLCommonHandler.instance().getSavesDirectory();
File zip = new File(dstFolder, String.format("%s-%2$tY%2$tm%2$td-%2$tH%2$tM%2$tS.zip", dirName, System.currentTimeMillis()));
try
{
ZipperUtil.zip(new File(dstFolder, dirName), zip);
}
catch (IOException e)
{
FMLLog.log.warn("World backup failed.", e);
throw e;
}
FMLLog.log.info("World backup created at {}.", zip.getCanonicalPath());
}
}