fabric-loom/src/main/java/net/fabricmc/loom/util/ModProcessor.java
2018-11-02 00:40:51 +01:00

251 lines
8.9 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.util;
import com.google.common.base.Charsets;
import com.google.common.io.ByteStreams;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import net.fabricmc.loom.LoomGradleExtension;
import net.fabricmc.loom.mixin.MixinMappingProviderTiny;
import net.fabricmc.tinyremapper.OutputConsumerPath;
import net.fabricmc.tinyremapper.TinyRemapper;
import net.fabricmc.tinyremapper.TinyUtils;
import org.apache.commons.io.IOUtils;
import org.gradle.api.Project;
import org.gradle.api.artifacts.Configuration;
import org.gradle.api.artifacts.ExternalModuleDependency;
import org.gradle.api.artifacts.repositories.MavenArtifactRepository;
import org.objectweb.asm.commons.Remapper;
import org.spongepowered.asm.mixin.injection.struct.MemberInfo;
import org.spongepowered.asm.obfuscation.mapping.common.MappingField;
import org.spongepowered.asm.obfuscation.mapping.common.MappingMethod;
import org.zeroturnaround.zip.ZipUtil;
import org.zeroturnaround.zip.transform.StringZipEntryTransformer;
import org.zeroturnaround.zip.transform.ZipEntryTransformerEntry;
import java.io.*;
import java.lang.reflect.Field;
import java.nio.charset.StandardCharsets;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import java.util.jar.JarFile;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
public class ModProcessor {
public static void handleMod(File input, File output, Project project){
if(output.exists()){
output.delete();
}
remapJar(input, output, project);
JsonObject jsonObject = readInstallerJson(input);
if(jsonObject != null){
handleInstallerJson(jsonObject, project);
}
}
private static void remapJar(File input, File output, Project project){
LoomGradleExtension extension = project.getExtensions().getByType(LoomGradleExtension.class);
String fromM = "intermediary";
String toM = "pomf";
File mappingsFile = Constants.MAPPINGS_TINY.get(extension);
Path mappings = mappingsFile.toPath();
Path mc = Constants.MINECRAFT_INTERMEDIARY_JAR.get(extension).toPath();
Path[] classpath = project.getConfigurations().getByName(Constants.CONFIG_MC_DEPENDENCIES).getFiles().stream()
.map(File::toPath)
.toArray(Path[]::new);
project.getLogger().lifecycle(":remapping " + input.getName() + " (TinyRemapper, " + fromM + " -> " + toM + ")");
TinyRemapper remapper = TinyRemapper.newRemapper()
.withMappings(TinyUtils.createTinyMappingProvider(mappings, fromM, toM))
.build();
try {
OutputConsumerPath outputConsumer = new OutputConsumerPath(Paths.get(output.getAbsolutePath()));
outputConsumer.addNonClassFiles(input.toPath());
remapper.read(input.toPath());
remapper.read(mc);
remapper.read(classpath);
remapper.apply(input.toPath(), outputConsumer);
outputConsumer.finish();
} catch (Exception e){
remapper.finish();
throw new RuntimeException("Failed to remap JAR to " + toM, e);
}
if(!output.exists()){
throw new RuntimeException("Failed to remap JAR to " + toM + " file not found: " + output.getAbsolutePath());
}
Gson gson = new GsonBuilder().setPrettyPrinting().create();
project.getLogger().lifecycle(":remapping " + input.getName() + " (Mixin reference map)");
// first, identify all of the mixin refmaps
Set<String> mixinRefmapFilenames = new HashSet<>();
// TODO: this is a lovely hack
ZipUtil.iterate(output, (stream, entry) -> {
if (!entry.isDirectory() && entry.getName().endsWith(".json") && !entry.getName().contains("/") && !entry.getName().contains("\\")) {
// JSON file in root directory
try {
JsonObject json = gson.fromJson(new InputStreamReader(stream), JsonObject.class);
if (json != null && json.has("refmap")) {
mixinRefmapFilenames.add(json.get("refmap").getAsString());
}
} catch (Exception e) {
// ...
}
}
});
if (mixinRefmapFilenames.size() > 0) {
Remapper asmRemapper;
// TODO: Expose in tiny-remapper
try {
Field f = TinyRemapper.class.getDeclaredField("remapper");;
f.setAccessible(true);
asmRemapper = (Remapper) f.get(remapper);
} catch (Exception e) {
throw new RuntimeException(e);
}
ZipUtil.transformEntries(
output,
mixinRefmapFilenames.stream()
.map((f) -> new ZipEntryTransformerEntry(f, new StringZipEntryTransformer("UTF-8") {
@Override
protected String transform(ZipEntry zipEntry, String input) throws IOException {
return transformRefmap(asmRemapper, gson, input);
}
})).toArray(ZipEntryTransformerEntry[]::new)
);
remapper.finish();
}
}
public static String transformRefmap(Remapper remapper, Gson gson, String input) throws IOException {
try {
JsonObject refMap = gson.fromJson(input, JsonObject.class);
JsonObject mappings = refMap.getAsJsonObject("mappings");
for (Map.Entry<String, JsonElement> elementEntry : mappings.entrySet()) {
JsonObject value = elementEntry.getValue().getAsJsonObject();
for (String k : new HashSet<>(value.keySet())) {
try {
String v = value.get(k).getAsString();
String v2;
if (v.charAt(0) == 'L') {
// field or member
MemberInfo info = MemberInfo.parse(v);
String owner = remapper.map(info.owner);
if (info.isField()) {
v2 = new MemberInfo(
remapper.mapFieldName(info.owner, info.name, info.desc),
owner,
remapper.mapDesc(info.desc)
).toString();
} else {
v2 = new MemberInfo(
remapper.mapMethodName(info.owner, info.name, info.desc),
owner,
remapper.mapMethodDesc(info.desc)
).toString();
}
} else {
// class
v2 = remapper.map(v);
}
if (v2 != null) {
value.addProperty(k, v2);
}
} catch (Exception ee) {
ee.printStackTrace();
}
}
}
return gson.toJson(refMap);
} catch (Exception e) {
e.printStackTrace();
return input;
}
}
private static void handleInstallerJson(JsonObject jsonObject, Project project){
JsonObject libraries = jsonObject.get("libraries").getAsJsonObject();
libraries.get("common").getAsJsonArray().forEach(jsonElement -> {
String name = jsonElement.getAsJsonObject().get("name").getAsString();
Configuration configuration = project.getConfigurations().getByName("compile");
ExternalModuleDependency modDep = (ExternalModuleDependency) project.getDependencies().create(name);
modDep.setTransitive(false);
configuration.getDependencies().add(modDep);
if(jsonElement.getAsJsonObject().has("url")){
String url = jsonElement.getAsJsonObject().get("url").getAsString();
long count = project.getRepositories().stream()
.filter(artifactRepository -> artifactRepository instanceof MavenArtifactRepository)
.map(artifactRepository -> (MavenArtifactRepository) artifactRepository)
.filter(mavenArtifactRepository -> mavenArtifactRepository.getUrl().toString().equalsIgnoreCase(url)).count();
if(count == 0){
project.getRepositories().maven(mavenArtifactRepository -> mavenArtifactRepository.setUrl(jsonElement.getAsJsonObject().get("url").getAsString()));
}
}
});
}
private static JsonObject readInstallerJson(File file){
try {
JarFile jarFile = new JarFile(file);
ZipEntry entry = jarFile.getEntry("fabric-installer.json");
if(entry == null){
return null;
}
InputStream inputstream = jarFile.getInputStream(entry);
String jsonStr = IOUtils.toString(inputstream, StandardCharsets.UTF_8);
inputstream.close();
jarFile.close();
JsonObject jsonObject = new Gson().fromJson(jsonStr, JsonObject.class);
return jsonObject;
} catch (IOException e) {
e.printStackTrace();
return null;
}
}
}