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scoverage#75 Spawn tasks using Worker API instead of adding scoverage…
…'s classpath to the main gradle classloader
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,34 +1,39 @@ | ||
| package org.scoverage | ||
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| import org.gradle.api.Action | ||
| import org.gradle.api.file.FileCollection | ||
| import org.gradle.api.tasks.Classpath | ||
| import org.gradle.workers.WorkAction | ||
| import org.gradle.workers.WorkParameters | ||
| import org.gradle.workers.WorkerExecutor | ||
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| import java.lang.reflect.Method | ||
| import javax.inject.Inject | ||
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| class ScoverageRunner { | ||
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| private final WorkerExecutor workerExecutor | ||
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| @Classpath | ||
| final FileCollection runtimeClasspath | ||
| FileCollection runtimeClasspath | ||
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| ScoverageRunner(FileCollection runtimeClasspath) { | ||
| @Inject | ||
| ScoverageRunner(WorkerExecutor workerExecutor) { | ||
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| this.runtimeClasspath = runtimeClasspath | ||
| this.workerExecutor = workerExecutor | ||
| } | ||
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| def run(Closure<?> action) { | ||
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| URLClassLoader cloader = (URLClassLoader) Thread.currentThread().getContextClassLoader() | ||
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| Method method = URLClassLoader.class.getDeclaredMethod("addURL", URL.class) | ||
| method.setAccessible(true) | ||
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| runtimeClasspath.files.each { f -> | ||
| def url = f.toURI().toURL() | ||
| if (!cloader.getURLs().contains(url)) { | ||
| method.invoke(cloader, url) | ||
| } | ||
| /** | ||
| * The runner makes use of Gradle's worker API to run tasks with scoverage's classpath without affecting the main | ||
| * gradle classloader/classpath. | ||
| * | ||
| * @see <a href="https://docs.gradle.org/current/userguide/custom_tasks.html#worker_api">Worker API guide</a> | ||
| * @see <a href="https://github.com/gradle/guides/issues/295">Worker API guide issue<a/> | ||
| */ | ||
| def <T extends WorkParameters> void run(Class<? extends WorkAction<T>> workActionClass, Action<? super T> parameterAction) { | ||
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| def queue = workerExecutor.classLoaderIsolation() {spec -> | ||
| spec.getClasspath().from(runtimeClasspath) | ||
| } | ||
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| action.call() | ||
| queue.submit(workActionClass, parameterAction) | ||
| } | ||
| } |