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/*
* This file is part of fabric-loom, licensed under the MIT License (MIT).
*
* Copyright (c) 2016, 2017, 2018 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.providers;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.net.URL;
import java.nio.charset.StandardCharsets;
import java.util.Optional;
import java.util.function.Consumer;
import java.util.zip.ZipError;
import com.google.common.io.Files;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import org.gradle.api.GradleException;
import org.gradle.api.Project;
import org.gradle.api.logging.Logger;
import net.fabricmc.loom.util.Constants;
import net.fabricmc.loom.util.DependencyProvider;
import net.fabricmc.loom.util.DownloadUtil;
import net.fabricmc.loom.util.ManifestVersion;
import net.fabricmc.loom.util.MinecraftVersionInfo;
import net.fabricmc.loom.util.StaticPathWatcher;
import net.fabricmc.stitch.merge.JarMerger;
public class MinecraftProvider extends DependencyProvider {
private String minecraftVersion;
private MinecraftVersionInfo versionInfo;
private MinecraftLibraryProvider libraryProvider;
private File minecraftJson;
private File minecraftClientJar;
private File minecraftServerJar;
private File minecraftMergedJar;
Gson gson = new Gson();
public MinecraftProvider(Project project) {
super(project);
}
@Override
public void provide(DependencyInfo dependency, Consumer<Runnable> postPopulationScheduler) throws Exception {
minecraftVersion = dependency.getDependency().getVersion();
boolean offline = getProject().getGradle().getStartParameter().isOffline();
initFiles();
downloadMcJson(offline);
try (FileReader reader = new FileReader(minecraftJson)) {
versionInfo = gson.fromJson(reader, MinecraftVersionInfo.class);
}
// Add Loom as an annotation processor
addDependency(getProject().files(this.getClass().getProtectionDomain().getCodeSource().getLocation()), "compileOnly");
if (offline) {
if (minecraftClientJar.exists() && minecraftServerJar.exists()) {
getProject().getLogger().debug("Found client and server jars, presuming up-to-date");
} else if (minecraftMergedJar.exists()) {
//Strictly we don't need the split jars if the merged one exists, let's try go on
getProject().getLogger().warn("Missing game jar but merged jar present, things might end badly");
} else {
throw new GradleException("Missing jar(s); Client: " + minecraftClientJar.exists() + ", Server: " + minecraftServerJar.exists());
}
} else {
downloadJars(getProject().getLogger());
}
libraryProvider = new MinecraftLibraryProvider();
libraryProvider.provide(this, getProject());
if (!minecraftMergedJar.exists() || isRefreshDeps()) {
try {
mergeJars(getProject().getLogger());
} catch (ZipError e) {
DownloadUtil.delete(minecraftClientJar);
DownloadUtil.delete(minecraftServerJar);
getProject().getLogger().error("Could not merge JARs! Deleting source JARs - please re-run the command and move on.", e);
throw new RuntimeException();
}
}
}
private void initFiles() {
minecraftJson = new File(getExtension().getUserCache(), "minecraft-" + minecraftVersion + "-info.json");
minecraftClientJar = new File(getExtension().getUserCache(), "minecraft-" + minecraftVersion + "-client.jar");
minecraftServerJar = new File(getExtension().getUserCache(), "minecraft-" + minecraftVersion + "-server.jar");
minecraftMergedJar = new File(getExtension().getUserCache(), "minecraft-" + minecraftVersion + "-merged.jar");
}
private void downloadMcJson(boolean offline) throws IOException {
File manifests = new File(getExtension().getUserCache(), "version_manifest.json");
if (getExtension().isShareCaches() && !getExtension().isRootProject() && manifests.exists() && !isRefreshDeps()) {
return;
}
if (offline) {
if (manifests.exists()) {
//If there is the manifests already we'll presume that's good enough
getProject().getLogger().debug("Found version manifests, presuming up-to-date");
} else {
//If we don't have the manifests then there's nothing more we can do
throw new GradleException("Version manifests not found at " + manifests.getAbsolutePath());
}
} else {
getProject().getLogger().debug("Downloading version manifests");
DownloadUtil.downloadIfChanged(new URL("https://launchermeta.mojang.com/mc/game/version_manifest.json"), manifests, getProject().getLogger());
}
String versionManifest = Files.asCharSource(manifests, StandardCharsets.UTF_8).read();
ManifestVersion mcManifest = new GsonBuilder().create().fromJson(versionManifest, ManifestVersion.class);
Optional<ManifestVersion.Versions> optionalVersion = Optional.empty();
if (getExtension().customManifest != null) {
ManifestVersion.Versions customVersion = new ManifestVersion.Versions();
customVersion.id = minecraftVersion;
customVersion.url = getExtension().customManifest;
optionalVersion = Optional.of(customVersion);
getProject().getLogger().lifecycle("Using custom minecraft manifest");
}
if (!optionalVersion.isPresent()) {
optionalVersion = mcManifest.versions.stream().filter(versions -> versions.id.equalsIgnoreCase(minecraftVersion)).findFirst();
}
if (optionalVersion.isPresent()) {
if (offline) {
if (minecraftJson.exists()) {
//If there is the manifest already we'll presume that's good enough
getProject().getLogger().debug("Found Minecraft {} manifest, presuming up-to-date", minecraftVersion);
} else {
//If we don't have the manifests then there's nothing more we can do
throw new GradleException("Minecraft " + minecraftVersion + " manifest not found at " + minecraftJson.getAbsolutePath());
}
} else {
if (StaticPathWatcher.INSTANCE.hasFileChanged(minecraftJson.toPath()) || isRefreshDeps()) {
getProject().getLogger().debug("Downloading Minecraft {} manifest", minecraftVersion);
DownloadUtil.downloadIfChanged(new URL(optionalVersion.get().url), minecraftJson, getProject().getLogger());
}
}
} else {
throw new RuntimeException("Failed to find minecraft version: " + minecraftVersion);
}
}
private void downloadJars(Logger logger) throws IOException {
if (getExtension().isShareCaches() && !getExtension().isRootProject() && minecraftClientJar.exists() && minecraftServerJar.exists() && !isRefreshDeps()) {
return;
}
DownloadUtil.downloadIfChanged(new URL(versionInfo.downloads.get("client").url), minecraftClientJar, logger);
DownloadUtil.downloadIfChanged(new URL(versionInfo.downloads.get("server").url), minecraftServerJar, logger);
}
private void mergeJars(Logger logger) throws IOException {
logger.lifecycle(":merging jars");
try (JarMerger jarMerger = new JarMerger(minecraftClientJar, minecraftServerJar, minecraftMergedJar)) {
jarMerger.enableSyntheticParamsOffset();
jarMerger.merge();
}
}
public File getMergedJar() {
return minecraftMergedJar;
}
public String getMinecraftVersion() {
return minecraftVersion;
}
public MinecraftVersionInfo getVersionInfo() {
return versionInfo;
}
public MinecraftLibraryProvider getLibraryProvider() {
return libraryProvider;
}
@Override
public String getTargetConfig() {
return Constants.MINECRAFT;
}
}
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