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/*
* This file is part of fabric-loom, licensed under the MIT License (MIT).
*
* Copyright (c) 2020 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;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.function.BiConsumer;
import java.util.function.BiFunction;
import org.gradle.api.Action;
import org.objectweb.asm.commons.Remapper;
import net.fabricmc.loom.util.CloseableList;
import net.fabricmc.stitch.util.Pair;
import net.fabricmc.tinyremapper.IMappingProvider;
import net.fabricmc.tinyremapper.InputTag;
import net.fabricmc.tinyremapper.OutputConsumerPath;
import net.fabricmc.tinyremapper.TinyRemapper;
public class JarRemapper {
private final List<IMappingProvider> mappingProviders = new ArrayList<>();
private final Set<Path> classPath = new HashSet<>();
private final List<RemapData> remapData = new ArrayList<>();
private List<Action<TinyRemapper.Builder>> remapOptions;
public void addMappings(IMappingProvider mappingProvider) {
mappingProviders.add(mappingProvider);
}
public void addToClasspath(Path... paths) {
classPath.addAll(Arrays.asList(paths));
}
public RemapData scheduleRemap(Path input, Path output) {
RemapData data = new RemapData(input, output);
remapData.add(data);
return data;
}
public void remap() throws IOException {
TinyRemapper.Builder remapperBuilder = TinyRemapper.newRemapper();
mappingProviders.forEach(remapperBuilder::withMappings);
if (remapOptions != null) {
for (Action<TinyRemapper.Builder> remapOption : remapOptions) {
remapOption.execute(remapperBuilder);
}
}
TinyRemapper remapper = remapperBuilder.build();
Path[] remapClasspath = classPath.stream()
.filter(path ->
remapData.stream().noneMatch(remapData -> remapData.input.equals(path))
)
.toArray(Path[]::new);
remapper.readClassPathAsync(remapClasspath);
for (RemapData data : remapData) {
InputTag tag = remapper.createInputTag();
data.tag = tag;
remapper.readInputsAsync(tag, data.input);
}
//noinspection MismatchedQueryAndUpdateOfCollection
try (CloseableList<OutputConsumerPath> outputConsumers = new CloseableList<>()) {
for (RemapData data : remapData) {
OutputConsumerPath outputConsumer = new OutputConsumerPath.Builder(data.output).build();
outputConsumers.add(outputConsumer);
outputConsumer.addNonClassFiles(data.input);
data.processAccessWidener(remapper.getRemapper());
remapper.apply(outputConsumer, data.tag);
}
remapper.finish();
} catch (Exception e) {
for (RemapData data : remapData) {
// Cleanup bad outputs
Files.deleteIfExists(data.output);
}
throw new IOException("Failed to remap %s files".formatted(remapData.size()), e);
}
remapData.forEach(RemapData::complete);
}
public void addOptions(List<Action<TinyRemapper.Builder>> remapOptions) {
this.remapOptions = remapOptions;
}
public static class RemapData {
public final Path input;
public final Path output;
BiFunction<RemapData, Remapper, Pair<String, byte[]>> accesWidenerSupplier;
BiConsumer<RemapData, Pair<String, byte[]>> onComplete;
private InputTag tag;
private Pair<String, byte[]> accessWidener;
public RemapData(Path input, Path output) {
this.input = input;
this.output = output;
}
public RemapData complete(BiConsumer<RemapData, Pair<String, byte[]>> onComplete) {
this.onComplete = onComplete;
return this;
}
public RemapData supplyAccessWidener(BiFunction<RemapData, Remapper, Pair<String, byte[]>> beforeFinish) {
this.accesWidenerSupplier = beforeFinish;
return this;
}
private void complete() {
if (onComplete != null) {
onComplete.accept(this, accessWidener);
}
}
private void processAccessWidener(Remapper remapper) {
if (accesWidenerSupplier != null) {
accessWidener = accesWidenerSupplier.apply(this, remapper);
}
}
}
}
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