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/*
* This file is part of fabric-loom, licensed under the MIT License (MIT).
*
* Copyright (c) 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.task;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.UncheckedIOException;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import javax.inject.Inject;
import org.gradle.api.DefaultTask;
import org.gradle.api.file.RegularFileProperty;
import org.gradle.api.tasks.InputFile;
import org.gradle.api.tasks.SkipWhenEmpty;
import org.gradle.api.tasks.TaskAction;
import net.fabricmc.accesswidener.AccessWidenerFormatException;
import net.fabricmc.accesswidener.AccessWidenerReader;
import net.fabricmc.accesswidener.AccessWidenerVisitor;
import net.fabricmc.loom.LoomGradleExtension;
import net.fabricmc.tinyremapper.TinyRemapper;
import net.fabricmc.tinyremapper.api.TrEnvironment;
public abstract class ValidateAccessWidenerTask extends DefaultTask {
@SkipWhenEmpty
@InputFile
public abstract RegularFileProperty getAccessWidener();
@InputFile
public abstract RegularFileProperty getTargetJar();
@Inject
public ValidateAccessWidenerTask() {
final LoomGradleExtension extension = LoomGradleExtension.get(getProject());
getAccessWidener().convention(extension.getAccessWidenerPath()).finalizeValueOnRead();
getTargetJar().convention(getProject().getObjects().fileProperty().fileValue(extension.getMinecraftMappedProvider().getMappedJar())).finalizeValueOnRead();
}
@TaskAction
public void run() {
final TinyRemapper tinyRemapper = TinyRemapper.newRemapper().build();
tinyRemapper.readClassPath(getTargetJar().get().getAsFile().toPath());
final AccessWidenerValidator validator = new AccessWidenerValidator(tinyRemapper.getEnvironment());
final AccessWidenerReader accessWidenerReader = new AccessWidenerReader(validator);
try (BufferedReader reader = Files.newBufferedReader(getAccessWidener().get().getAsFile().toPath(), StandardCharsets.UTF_8)) {
accessWidenerReader.read(reader, "named");
} catch (AccessWidenerFormatException e) {
getProject().getLogger().error("Failed to validate access-widener file {} on line {}: {}", getAccessWidener().get().getAsFile().getName(), e.getLineNumber(), e.getMessage());
throw e;
} catch (IOException e) {
throw new UncheckedIOException("Failed to read access widener", e);
} finally {
tinyRemapper.finish();
}
}
/**
* Validates that all entries in an access-widner file relate to a class/method/field in the mc jar.
*/
private static record AccessWidenerValidator(TrEnvironment environment) implements AccessWidenerVisitor {
@Override
public void visitClass(String name, AccessWidenerReader.AccessType access, boolean transitive) {
if (environment().getClass(name) == null) {
throw new RuntimeException("Could not find class (%s)".formatted(name));
}
}
@Override
public void visitMethod(String owner, String name, String descriptor, AccessWidenerReader.AccessType access, boolean transitive) {
if (environment().getMethod(owner, name, descriptor) == null) {
throw new RuntimeException("Could not find method (%s%s) in class (%s)".formatted(name, descriptor, owner));
}
}
@Override
public void visitField(String owner, String name, String descriptor, AccessWidenerReader.AccessType access, boolean transitive) {
if (environment().getField(owner, name, descriptor) == null) {
throw new RuntimeException("Could not find field (%s%s) in class (%s)".formatted(name, descriptor, owner));
}
}
}
}
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