Gradle Checkstyle HTML Reporting

quality.gradle

apply plugin: 'checkstyle'

checkstyleMain {
    ignoreFailures = false
    reports {
        include ( '**/*.java')
        xml {
           destination "${rootProject.buildDir}/reports/checkstyle/main.xml" 
        }
    }
    configFile = file('./config/checkstyle/checkstyle.xml')
}

checkstyleTest {
    ignoreFailures = false
    reports {
        include ( '**/*.java')
        xml {
            destination "${rootProject.buildDir}/reports/checkstyle/test.xml"
        }
    }
    configFile = file('./config/checkstyle/checkstyle-test.xml')
}


task checkstyleReport << {
    if (file("$buildDir/reports/checkstyle/${checkType}.xml").exists()) {
        ant.xslt(in: "$buildDir/reports/checkstyle/${checkType}.xml",
            style:"config/checkstyle/checkstyle.xsl",
            out:"$buildDir/reports/checkstyle/checkstyle_${checkType}.html"
        )
    }
}

task quality(dependsOn:['checkstyleMain', 'checkstyleTest'])

gradle.taskGraph.afterTask {Task task, TaskState state ->
    if(state.failure) {
        if (task.name in ['checkstyleMain', 'checkstyleTest']) {
            checkstyleReport {
                def matcher = task.name =~ /^checkstyle(.*)$/
                if (matcher.matches()) {
                    checkType = matcher.group(1).toLowerCase()
                }
            }
            checkstyleReport.execute() 
        }
    }
}

Thx @sschuberth