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/*
* This file is part of fabric-loom, licensed under the MIT License (MIT).
*
* Copyright (c) 2016-2021 FabricMC
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package net.fabricmc.loom.configuration.providers.minecraft;
import java.io.File;
import java.io.IOException;
import java.net.URL;
import java.nio.charset.StandardCharsets;
import java.util.List;
import java.util.Objects;
import java.util.stream.Collectors;
import org.apache.commons.io.FileUtils;
import org.gradle.api.GradleException;
import org.gradle.api.Project;
import net.fabricmc.loom.LoomGradleExtension;
import net.fabricmc.loom.LoomGradlePlugin;
import net.fabricmc.loom.util.HashedDownloadUtil;
import net.fabricmc.loom.util.MirrorUtil;
import net.fabricmc.loom.util.ZipUtils;
public class MinecraftNativesProvider {
private final Project project;
private final LoomGradleExtension extension;
private final File nativesDir;
private final File jarStore;
public MinecraftNativesProvider(Project project) {
this.project = project;
extension = LoomGradleExtension.get(project);
nativesDir = extension.getMinecraftProvider().nativesDir();
jarStore = extension.getFiles().getNativesJarStore();
}
public static void provide(Project project) throws IOException {
new MinecraftNativesProvider(project).provide();
}
private void provide() throws IOException {
if (extension.getMinecraftProvider().hasCustomNatives()) {
if (!nativesDir.exists()) {
throw new RuntimeException("Could no find custom natives directory at " + nativesDir.getAbsolutePath());
}
return;
}
if (!LoomGradlePlugin.refreshDeps && !requiresExtract()) {
project.getLogger().info("Natives do no need extracting, skipping");
return;
}
extractNatives();
}
private void extractNatives() throws IOException {
boolean offline = project.getGradle().getStartParameter().isOffline();
if (nativesDir.exists()) {
try {
FileUtils.deleteDirectory(nativesDir);
} catch (IOException e) {
throw new IOException("Failed to delete the natives directory, is the game running?", e);
}
}
nativesDir.mkdirs();
for (MinecraftVersionMeta.Download library : getNatives()) {
File libJarFile = library.relativeFile(jarStore);
if (!offline) {
HashedDownloadUtil.downloadIfInvalid(new URL(MirrorUtil.getLibrariesBase(project) + library.path()), libJarFile, library.sha1(), project.getLogger(), false);
}
if (!libJarFile.exists()) {
throw new GradleException("Native jar not found at " + libJarFile.getAbsolutePath());
}
ZipUtils.unpackAll(libJarFile.toPath(), nativesDir.toPath());
// Store a file containing the hash of the extracted natives, used on subsequent runs to skip extracting all the natives if they haven't changed
File libSha1File = new File(nativesDir, libJarFile.getName() + ".sha1");
FileUtils.writeStringToFile(libSha1File, library.sha1(), StandardCharsets.UTF_8);
}
}
private boolean requiresExtract() {
List<MinecraftVersionMeta.Download> natives = getNatives();
for (MinecraftVersionMeta.Download library : natives) {
File libJarFile = library.relativeFile(jarStore);
File libSha1File = new File(nativesDir, libJarFile.getName() + ".sha1");
if (!libSha1File.exists()) {
return true;
}
try {
String sha1 = FileUtils.readFileToString(libSha1File, StandardCharsets.UTF_8);
if (!sha1.equalsIgnoreCase(library.sha1())) {
return true;
}
} catch (IOException e) {
project.getLogger().error("Failed to read " + libSha1File.getAbsolutePath(), e);
return true;
}
}
// All looks good, no need to re-extract
return false;
}
private List<MinecraftVersionMeta.Download> getNatives() {
return extension.getMinecraftProvider().getVersionInfo().libraries().stream()
.filter((MinecraftVersionMeta.Library::hasNativesForOS))
.map(MinecraftVersionMeta.Library::classifierForOS)
.filter(Objects::nonNull)
.collect(Collectors.toList());
}
}
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