override def projectSettings = asciidoctorSettings()

in project/AsciidocPlugin.scala [41:84]
39 lines of code
3 McCabe index (conditional complexity)

  override def projectSettings = asciidoctorSettings(Asciidoc)

  /** Creates settings necessary for running Asciidoctor in the given configuration. */
  def asciidoctorSettings(config: Configuration): Seq[Setting[_]] =
    inConfig(config)(
      Seq(
        includeFilter := AllPassFilter,
        unmanagedSources := (sourceDirectory.value ** "*.adoc").get,
        managedSources := Seq(),
        sources := unmanagedSources.value ++ managedSources.value,
        siteProperties := Seq("project-version" -> version.value),
        mappings := generate(sources.value, target.value, includeFilter.value, siteProperties.value),
        siteSubdirName := ""
      )
    ) ++
      SiteHelpers.directorySettings(config) ++
      SiteHelpers.watchSettings(config) ++
      SiteHelpers.addMappingsToSiteDir(mappings in config, siteSubdirName in config)

  /** Run asciidoctor in new ClassLoader. */
  private def generate(inputs: Seq[File], outputDirectory: File, includeFilter: FileFilter, props: Seq[(String, AnyRef)])
  : Seq[(File, String)] = {
    val oldContextClassLoader = Thread.currentThread().getContextClassLoader
    Thread.currentThread().setContextClassLoader(this.getClass.getClassLoader)
    try {
      val asciidoctor = Factory.create()
      if (!outputDirectory.exists()) outputDirectory.mkdirs()
      val options = new Options
      options.setToDir(outputDirectory.getAbsolutePath)
      options.setDestinationDir(outputDirectory.getAbsolutePath)
      options.setSafe(SafeMode.UNSAFE)
      // need to do this explicitly through HashMap because otherwise JRuby complains
      val attributes = new util.HashMap[String, AnyRef]
      for ((key, value) <- props) attributes.put(key, value)
      options.setAttributes(attributes)
      val walker = new DirectoryWalker {
        override def scan(): util.List[File] = inputs.asJava
      }
      asciidoctor.renderDirectory(walker, options)
    } finally {
      Thread.currentThread().setContextClassLoader(oldContextClassLoader)
    }
    outputDirectory ** includeFilter --- outputDirectory pair Path.relativeTo(outputDirectory)
  }