121 lines
5.1 KiB
Java
121 lines
5.1 KiB
Java
/*
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* This file is part of fabric-loom, licensed under the MIT License (MIT).
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*
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* Copyright (c) 2016, 2017, 2018 FabricMC
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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package net.fabricmc.loom.task;
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import java.io.File;
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import java.io.IOException;
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import java.nio.file.Files;
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import java.nio.file.Path;
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import java.nio.file.StandardCopyOption;
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import java.util.Collection;
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import java.util.Locale;
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import java.util.stream.Collectors;
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import javax.inject.Inject;
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import org.gradle.api.tasks.TaskAction;
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import net.fabricmc.loom.LoomGradleExtension;
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import net.fabricmc.loom.api.decompilers.DecompilationMetadata;
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import net.fabricmc.loom.api.decompilers.LoomDecompiler;
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import net.fabricmc.loom.configuration.providers.mappings.MappingsProvider;
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import net.fabricmc.loom.decompilers.LineNumberRemapper;
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import net.fabricmc.loom.util.Constants;
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import net.fabricmc.loom.util.gradle.ProgressLogger;
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import net.fabricmc.stitch.util.StitchUtil;
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public class GenerateSourcesTask extends AbstractLoomTask {
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public final LoomDecompiler decompiler;
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@Inject
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public GenerateSourcesTask(LoomDecompiler decompiler) {
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this.decompiler = decompiler;
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setGroup("fabric");
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getOutputs().upToDateWhen((o) -> false);
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}
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@TaskAction
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public void doTask() throws Throwable {
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int threads = Runtime.getRuntime().availableProcessors();
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Path javaDocs = getExtension().getMappingsProvider().tinyMappings.toPath();
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Collection<Path> libraries = getProject().getConfigurations().getByName(Constants.Configurations.MINECRAFT_DEPENDENCIES).getFiles()
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.stream().map(File::toPath).collect(Collectors.toSet());
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DecompilationMetadata metadata = new DecompilationMetadata(threads, javaDocs, libraries);
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Path compiledJar = getExtension().getMappingsProvider().mappedProvider.getMappedJar().toPath();
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Path sourcesDestination = getMappedJarFileWithSuffix("-sources.jar").toPath();
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Path linemap = getMappedJarFileWithSuffix("-sources.lmap").toPath();
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decompiler.decompile(compiledJar, sourcesDestination, linemap, metadata);
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if (Files.exists(linemap)) {
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Path linemappedJarDestination = getMappedJarFileWithSuffix("-linemapped.jar").toPath();
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remapLineNumbers(compiledJar, linemap, linemappedJarDestination);
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// In order for IDEs to recognize the new line mappings, we need to overwrite the existing compiled jar
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// with the linemapped one. In the name of not destroying the existing jar, we will copy it to somewhere else.
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Path unlinemappedJar = getMappedJarFileWithSuffix("-unlinemapped.jar").toPath();
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// The second time genSources is ran, we want to keep the existing unlinemapped jar.
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if (!Files.exists(unlinemappedJar)) {
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Files.copy(compiledJar, unlinemappedJar);
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}
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Files.copy(linemappedJarDestination, compiledJar, StandardCopyOption.REPLACE_EXISTING);
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Files.delete(linemappedJarDestination);
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}
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}
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private void remapLineNumbers(Path oldCompiledJar, Path linemap, Path linemappedJarDestination) throws IOException {
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getProject().getLogger().info(":adjusting line numbers");
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LineNumberRemapper remapper = new LineNumberRemapper();
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remapper.readMappings(linemap.toFile());
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ProgressLogger progressLogger = ProgressLogger.getProgressFactory(getProject(), getClass().getName());
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progressLogger.start("Adjusting line numbers", "linemap");
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try (StitchUtil.FileSystemDelegate inFs = StitchUtil.getJarFileSystem(oldCompiledJar.toFile(), true);
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StitchUtil.FileSystemDelegate outFs = StitchUtil.getJarFileSystem(linemappedJarDestination.toFile(), true)) {
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remapper.process(progressLogger, inFs.get().getPath("/"), outFs.get().getPath("/"));
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}
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progressLogger.completed();
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}
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private File getMappedJarFileWithSuffix(String suffix) {
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LoomGradleExtension extension = getProject().getExtensions().getByType(LoomGradleExtension.class);
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MappingsProvider mappingsProvider = extension.getMappingsProvider();
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File mappedJar = mappingsProvider.mappedProvider.getMappedJar();
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String path = mappedJar.getAbsolutePath();
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if (!path.toLowerCase(Locale.ROOT).endsWith(".jar")) {
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throw new RuntimeException("Invalid mapped JAR path: " + path);
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}
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return new File(path.substring(0, path.length() - 4) + suffix);
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}
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}
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