checkstyle {
    def configDirectory = new File(project.rootDir, ["config", "checkstyle"].join(File.separator))

    toolVersion '8.39'
    configFile new File(configDirectory, "checkstyle.xml")
    configProperties = [configDirectory: configDirectory.getAbsolutePath()]
    
    // The build should immediately fail if we have errors.
    maxErrors = 0
    maxWarnings = 0
}