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package dotty.tools
package dottydoc
package staticsite
import _root_.java.io.{ File => JFile }
import dotc.config.Printers.dottydoc
import dotc.core.Contexts.Context
import scala.io.Source
class Site(val root: JFile) {
/** If, for some reason, the supplied default files cannot be found - this
* exception will be thrown in `layouts`.
*/
final case class ResourceNotFoundException(message: String) extends Exception(message)
/** Files that define a layout then referred to by `layout: filename-no-ext`
* in yaml front-matter.
*
* The compiler will look in two locations, `<root>/_layouts/` and
* in the bundled jar file's resources `/_layouts`.
*
* If the user supplies a layout that has the same name as one of the
* defaults, the user-defined one will take precedence.
*/
val layouts: Map[String, String] = {
def collectLayouts(dir: JFile): Map[String, String] =
dir
.listFiles
.filter(f => f.getName.endsWith(".md") || f.getName.endsWith(".html"))
.map { f =>
(f.getName.substring(0, f.getName.lastIndexOf('.')), Source.fromFile(f).mkString)
}
.toMap
val userDefinedLayouts =
root
.listFiles.find(d => d.getName == "_layouts" && d.isDirectory)
.map(collectLayouts)
.getOrElse(Map.empty)
val defaultLayouts: Map[String, String] = Map(
"main" -> "/_layouts/main.html",
"index" -> "/_layouts/index.html"
).mapValues(getResource)
defaultLayouts ++ userDefinedLayouts
}
private def getResource(r: String): String =
Option(getClass.getResourceAsStream(r)).map(scala.io.Source.fromInputStream)
.map(_.mkString)
.getOrElse(throw ResourceNotFoundException(r))
def render(page: Page, params: Map[String, AnyRef])(implicit ctx: Context): String = {
page.yaml.get("layout").flatMap(layouts.get(_)) match {
case None =>
page.html
case Some(layout) =>
val expandedTemplate = new HtmlPage(layout, Map("content" -> page.html) ++ params)
render(expandedTemplate, params)
}
}
}
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