94 lines
3.3 KiB
Java
94 lines
3.3 KiB
Java
/*
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* This file is part of fabric-loom, licensed under the MIT License (MIT).
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*
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* Copyright (c) 2016-2021 FabricMC
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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package net.fabricmc.loom.util;
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import java.io.ByteArrayOutputStream;
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import java.io.File;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.nio.file.attribute.FileTime;
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import java.util.Calendar;
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import java.util.Comparator;
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import java.util.GregorianCalendar;
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import java.util.zip.ZipEntry;
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import java.util.zip.ZipFile;
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import java.util.zip.ZipOutputStream;
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public class ZipReprocessorUtil {
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/**
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* See {@link org.gradle.api.internal.file.archive.ZipCopyAction} about this.
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*/
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private static final long CONSTANT_TIME_FOR_ZIP_ENTRIES = new GregorianCalendar(1980, Calendar.FEBRUARY, 1, 0, 0, 0).getTimeInMillis();
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private ZipReprocessorUtil() { }
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public static void reprocessZip(File file, boolean reproducibleFileOrder, boolean preserveFileTimestamps) throws IOException {
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if (!reproducibleFileOrder && preserveFileTimestamps) {
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return;
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}
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try (ZipFile zipFile = new ZipFile(file)) {
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ZipEntry[] entries;
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if (reproducibleFileOrder) {
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entries = zipFile.stream().sorted(Comparator.comparing(ZipEntry::getName)).toArray(ZipEntry[]::new);
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} else {
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entries = zipFile.stream().toArray(ZipEntry[]::new);
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}
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ByteArrayOutputStream outZip = new ByteArrayOutputStream(zipFile.size());
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try (ZipOutputStream zipOutputStream = new ZipOutputStream(outZip)) {
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for (ZipEntry entry : entries) {
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ZipEntry newEntry = entry;
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if (!preserveFileTimestamps) {
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newEntry = new ZipEntry(entry.getName());
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newEntry.setTime(CONSTANT_TIME_FOR_ZIP_ENTRIES);
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newEntry.setLastModifiedTime(FileTime.fromMillis(CONSTANT_TIME_FOR_ZIP_ENTRIES));
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newEntry.setLastAccessTime(FileTime.fromMillis(CONSTANT_TIME_FOR_ZIP_ENTRIES));
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}
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zipOutputStream.putNextEntry(newEntry);
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InputStream inputStream = zipFile.getInputStream(entry);
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byte[] buf = new byte[1024];
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int length;
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while ((length = inputStream.read(buf)) > 0) {
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zipOutputStream.write(buf, 0, length);
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}
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zipOutputStream.closeEntry();
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}
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}
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try (FileOutputStream fileOutputStream = new FileOutputStream(file)) {
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outZip.writeTo(fileOutputStream);
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}
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}
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}
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}
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