apollo/gradle/jacoco.gradle

apply plugin: 'jacoco'

def testedProjects() {
    subprojects.findAll { subproject -> subproject.plugins.hasPlugin('java') || subproject.plugins.hasPlugin('kotlin') }
}

gradle.projectsEvaluated {

    configure(testedProjects()) {
        apply plugin: 'jacoco'

        jacoco {
            toolVersion = '0.8.1'
        }

        jacocoTestReport {
            sourceDirectories = files(sourceSets.main.allSource.srcDirs)
            classDirectories = files(sourceSets.main.output)
        }

        test {
            jacoco {
                append = false
                destinationFile = file("$buildDir/jacoco/jacocoTest.exec")
                classDumpDir = file("$buildDir/jacoco/classpathdumps")
            }
        }
    }

    task jacocoTestReport(type: JacocoReport) {
        def tests = []
        def sourceDirs = files()
        def classDirs = files()
        def execData = files()

        reports {
            xml.enabled = true
            html.enabled = true
        }

        testedProjects().each { subproject ->
            sourceDirs += files(subproject.sourceSets.main.allSource.srcDirs)
            classDirs += files(subproject.sourceSets.main.output)
            execData += files(subproject.tasks.jacocoTestReport.executionData.findAll {
                it.exists()
            })

            tests += subproject.tasks.test
        }

        dependsOn tests
        sourceDirectories = sourceDirs
        classDirectories = classDirs
        executionData = execData
    }


}