74 lines
2.5 KiB
Java
74 lines
2.5 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) 2016-2020 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.File;
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import java.io.IOException;
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import java.io.UncheckedIOException;
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import com.google.common.hash.HashCode;
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import com.google.common.hash.Hashing;
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import com.google.common.io.Files;
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import org.gradle.api.logging.Logger;
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import org.gradle.api.logging.Logging;
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public class Checksum {
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private static final Logger log = Logging.getLogger(Checksum.class);
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public static boolean equals(File file, String checksum) {
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if (file == null || !file.exists()) {
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return false;
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}
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try {
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HashCode hash = Files.asByteSource(file).hash(Hashing.sha1());
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log.debug("Checksum check: '" + hash.toString() + "' == '" + checksum + "'?");
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return hash.toString().equals(checksum);
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} catch (IOException e) {
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e.printStackTrace();
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}
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return false;
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}
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public static byte[] sha256(File file) {
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try {
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HashCode hash = Files.asByteSource(file).hash(Hashing.sha256());
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return hash.asBytes();
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} catch (IOException e) {
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throw new RuntimeException("Failed to get file hash");
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}
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}
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public static String truncatedSha256(File file) {
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try {
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HashCode hash = Files.asByteSource(file).hash(Hashing.sha256());
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return hash.toString().substring(0, 12);
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} catch (IOException e) {
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throw new UncheckedIOException("Failed to get file hash of " + file, e);
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}
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}
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}
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