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/*
* This file is part of fabric-loom, licensed under the MIT License (MIT).
*
* Copyright (c) 2020-2021 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.mixin;
import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Map;
import java.util.Objects;
import java.util.stream.Collectors;
import kotlin.Unit;
import org.gradle.api.Project;
import org.gradle.api.tasks.SourceSet;
import org.gradle.api.tasks.compile.JavaCompile;
import org.jetbrains.kotlin.gradle.plugin.KaptExtension;
import net.fabricmc.loom.LoomGradleExtension;
import net.fabricmc.loom.extension.MixinExtension;
public class KaptApInvoker extends AnnotationProcessorInvoker<JavaCompile> {
private final KaptExtension kaptExtension = project.getExtensions().getByType(KaptExtension.class);
// Refmap will be written to here with mixin, then moved after JavaCompile to the correct place
private final File dummyRefmapDirectory;
public KaptApInvoker(Project project) {
super(
project,
AnnotationProcessorInvoker.getApConfigurations(project, KaptApInvoker::getKaptConfigurationName),
getInvokerTasks(project));
try {
dummyRefmapDirectory = Files.createTempDirectory("temp_refmap").toFile();
} catch (IOException e) {
throw new RuntimeException(e);
}
dummyRefmapDirectory.deleteOnExit();
// Needed for mixin AP to run
kaptExtension.setIncludeCompileClasspath(false);
}
private static Map<SourceSet, JavaCompile> getInvokerTasks(Project project) {
MixinExtension mixin = LoomGradleExtension.get(project).getMixin();
return mixin.getInvokerTasksStream(AnnotationProcessorInvoker.JAVA)
.collect(Collectors.toMap(Map.Entry::getKey, entry -> Objects.requireNonNull((JavaCompile) entry.getValue())));
}
@Override
public void configureMixin() {
super.configureMixin();
for (Map.Entry<SourceSet, JavaCompile> entry : invokerTasks.entrySet()) {
// Kapt only allows specifying javac args to all annotation processors at once. So we need to specify some dummy
// target location for the refmap and then move it to the correct place for each sourceset
JavaCompile task = entry.getValue();
SourceSet sourceSet = entry.getKey();
task.doLast(t -> {
try {
String refmapName = Objects.requireNonNull(MixinExtension.getMixinInformationContainer(sourceSet)).refmapNameProvider().get();
Path src = Paths.get(getRefmapDestination(task, refmapName));
Path dest = Paths.get(task.getDestinationDir().toString(), refmapName);
// Possible that no mixin annotations exist
if (Files.exists(src)) {
project.getLogger().info("Copying refmap from " + src + " to " + dest);
Files.move(src, dest);
}
} catch (IOException e) {
project.getLogger().warn("Could not move refmap generated by kapt for task " + task, e);
}
});
}
}
// Pulled out from the internal class: https://github.com/JetBrains/kotlin/blob/33a0ec9b4f40f3d6f1f96b2db504ade4c2fafe03/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/internal/kapt/Kapt3KotlinGradleSubplugin.kt#L92
private static String getKaptConfigurationName(String sourceSetName) {
if (!sourceSetName.equals(SourceSet.MAIN_SOURCE_SET_NAME)) {
return "kapt" + (sourceSetName.substring(0, 1).toUpperCase() + sourceSetName.substring(1));
}
return "kapt";
}
@Override
protected void passArgument(JavaCompile compileTask, String key, String value) {
// Note: this MUST be run early on, before kapt uses this data, and there is only a point to setting the value once since
// kapt shares the options with all java compilers
kaptExtension.arguments(args -> {
args.arg(key, value);
return Unit.INSTANCE;
});
}
@Override
protected File getRefmapDestinationDir(JavaCompile task) {
return dummyRefmapDirectory;
}
}
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