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JacocoAgent.kt
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JacocoAgent.kt
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/*
* Copyright 2017-2021 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
*/
package kotlinx.kover.engines.jacoco
import kotlinx.kover.api.*
import kotlinx.kover.engines.commons.*
import kotlinx.kover.engines.commons.CoverageAgent
import org.gradle.api.*
import org.gradle.api.artifacts.*
import org.gradle.api.file.*
import java.io.*
internal fun Project.createJacocoAgent(koverExtension: KoverExtension): CoverageAgent {
val jacocoConfig = createJacocoConfig(koverExtension)
return JacocoAgent(jacocoConfig, this)
}
private class JacocoAgent(private val config: Configuration, private val project: Project): CoverageAgent {
override val engine: CoverageEngine = CoverageEngine.JACOCO
override val classpath: FileCollection = config
override fun buildCommandLineArgs(task: Task, extension: KoverTaskExtension): MutableList<String> {
return mutableListOf("-javaagent:${getJacocoJar().canonicalPath}=${agentArgs(extension)}")
}
private fun getJacocoJar(): File {
val containedJarFile = config.fileCollection { it.name == "org.jacoco.agent" }.singleFile
return project.zipTree(containedJarFile).filter { it.name == "jacocoagent.jar" }.singleFile
}
private fun agentArgs(extension: KoverTaskExtension): String {
val binary = extension.binaryReportFile.get()
binary.parentFile.mkdirs()
return listOfNotNull(
"destfile=${binary.canonicalPath}",
"append=true",
"inclnolocationclasses=false",
"dumponexit=true",
"output=file",
"jmx=false",
extension.includes.filterString("includes"),
extension.excludes.filterString("excludes")
).joinToString(",")
}
}
private fun List<String>.filterString(name: String): String? {
if (isEmpty()) return null
return name + "=" + joinToString(":")
}
private fun Project.createJacocoConfig(koverExtension: KoverExtension): Configuration {
val config = project.configurations.create("JacocoKoverConfig")
config.isVisible = false
config.isTransitive = true
config.description = "Kotlin Kover Plugin configuration for JaCoCo agent and reporter"
config.defaultDependencies { dependencies ->
dependencies.add(
this.dependencies.create("org.jacoco:org.jacoco.agent:${koverExtension.jacocoEngineVersion.get()}")
)
dependencies.add(
this.dependencies.create("org.jacoco:org.jacoco.ant:${koverExtension.jacocoEngineVersion.get()}")
)
}
return config
}