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/*
* This file is part of fabric-loom, licensed under the MIT License (MIT).
*
* Copyright (c) 2018-2021 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.build.nesting;
import java.io.File;
import java.util.Collection;
import java.util.zip.ZipEntry;
import com.google.common.base.Preconditions;
import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import org.gradle.api.logging.Logger;
import org.zeroturnaround.zip.FileSource;
import org.zeroturnaround.zip.ZipEntrySource;
import org.zeroturnaround.zip.ZipUtil;
import org.zeroturnaround.zip.transform.StringZipEntryTransformer;
import org.zeroturnaround.zip.transform.ZipEntryTransformerEntry;
import net.fabricmc.loom.LoomGradlePlugin;
import net.fabricmc.loom.util.ModUtils;
public class JarNester {
public static void nestJars(Collection<File> jars, File modJar, Logger logger) {
if (jars.isEmpty()) {
logger.debug("Nothing to nest into " + modJar.getName());
return;
}
Preconditions.checkArgument(ModUtils.isMod(modJar), "Cannot nest jars into none mod jar " + modJar.getName());
ZipUtil.addEntries(modJar, jars.stream().map(file -> new FileSource("META-INF/jars/" + file.getName(), file)).toArray(ZipEntrySource[]::new));
boolean didNest = ZipUtil.transformEntries(modJar, single(new ZipEntryTransformerEntry("fabric.mod.json", new StringZipEntryTransformer() {
@Override
protected String transform(ZipEntry zipEntry, String input) {
JsonObject json = LoomGradlePlugin.GSON.fromJson(input, JsonObject.class);
JsonArray nestedJars = json.getAsJsonArray("jars");
if (nestedJars == null || !json.has("jars")) {
nestedJars = new JsonArray();
}
for (File file : jars) {
String nestedJarPath = "META-INF/jars/" + file.getName();
for (JsonElement nestedJar : nestedJars) {
JsonObject jsonObject = nestedJar.getAsJsonObject();
if (jsonObject.has("file") && jsonObject.get("file").getAsString().equals(nestedJarPath)) {
throw new IllegalStateException("Cannot nest 2 jars at the same path: " + nestedJarPath);
}
}
JsonObject jsonObject = new JsonObject();
jsonObject.addProperty("file", nestedJarPath);
nestedJars.add(jsonObject);
logger.debug("Nested " + nestedJarPath + " into " + modJar.getName());
}
json.add("jars", nestedJars);
return LoomGradlePlugin.GSON.toJson(json);
}
})));
Preconditions.checkArgument(didNest, "Failed to nest jars into " + modJar.getName());
}
private static ZipEntryTransformerEntry[] single(ZipEntryTransformerEntry element) {
return new ZipEntryTransformerEntry[]{element};
}
}
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