fabric-loom/src/main/java/net/fabricmc/loom/providers/MinecraftAssetsProvider.java
2019-05-01 21:30:50 +02:00

115 lines
4.7 KiB
Java

/*
* 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 com.google.gson.Gson;
import net.fabricmc.loom.LoomGradleExtension;
import net.fabricmc.loom.util.Checksum;
import net.fabricmc.loom.util.Constants;
import net.fabricmc.loom.util.DownloadUtil;
import net.fabricmc.loom.util.MinecraftVersionInfo;
import net.fabricmc.loom.util.assets.AssetIndex;
import net.fabricmc.loom.util.assets.AssetObject;
import net.fabricmc.loom.util.progress.ProgressLogger;
import org.gradle.api.GradleException;
import org.gradle.api.Project;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.net.URL;
import java.util.Map;
public class MinecraftAssetsProvider {
public static void provide(MinecraftProvider minecraftProvider, Project project) throws IOException {
LoomGradleExtension extension = project.getExtensions().getByType(LoomGradleExtension.class);
boolean offline = project.getGradle().getStartParameter().isOffline();
MinecraftVersionInfo versionInfo = minecraftProvider.versionInfo;
MinecraftVersionInfo.AssetIndex assetIndex = versionInfo.assetIndex;
// get existing cache files
File assets = new File(extension.getUserCache(), "assets");
if (!assets.exists()) {
assets.mkdirs();
}
File assetsInfo = new File(assets, "indexes" + File.separator + assetIndex.getFabricId(minecraftProvider.minecraftVersion) + ".json");
if (!assetsInfo.exists() || !Checksum.equals(assetsInfo, assetIndex.sha1)) {
project.getLogger().lifecycle(":downloading asset index");
if (offline) {
if (assetsInfo.exists()) {
//We know it's outdated but can't do anything about it, oh well
project.getLogger().warn("Asset index outdated");
} else {
//We don't know what assets we need, just that we don't have any
throw new GradleException("Asset index not found at " + assetsInfo.getAbsolutePath());
}
} else {
DownloadUtil.downloadIfChanged(new URL(assetIndex.url), assetsInfo, project.getLogger());
}
}
ProgressLogger progressLogger = ProgressLogger.getProgressFactory(project, MinecraftAssetsProvider.class.getName());
progressLogger.start("Downloading assets...", "assets");
AssetIndex index;
try (FileReader fileReader = new FileReader(assetsInfo)) {
index = new Gson().fromJson(fileReader, AssetIndex.class);
}
Map<String, AssetObject> parent = index.getFileMap();
final int totalSize = parent.size();
int position = 0;
project.getLogger().lifecycle(":downloading assets...");
for (Map.Entry<String, AssetObject> entry : parent.entrySet()) {
AssetObject object = entry.getValue();
String sha1 = object.getHash();
String filename = "objects" + File.separator + sha1.substring(0, 2) + File.separator + sha1;
File file = new File(assets, filename);
if (!file.exists() || !Checksum.equals(file, sha1)) {
if (offline) {
if (file.exists()) {
project.getLogger().warn("Outdated asset " + entry.getKey());
} else {
throw new GradleException("Asset " + entry.getKey() + " not found at " + file.getAbsolutePath());
}
} else {
project.getLogger().debug(":downloading asset " + entry.getKey());
DownloadUtil.downloadIfChanged(new URL(Constants.RESOURCES_BASE + sha1.substring(0, 2) + "/" + sha1), file, project.getLogger(), true);
}
}
String assetName = entry.getKey();
int end = assetName.lastIndexOf("/") + 1;
if (end > 0) {
assetName = assetName.substring(end);
}
progressLogger.progress(assetName + " - " + position + "/" + totalSize + " (" + (int) ((position / (double) totalSize) * 100) + "%) assets downloaded");
position++;
}
progressLogger.completed();
}
}