Provides the ability to import JS and CSS files from CDNs

src/main/scala/microsites/MicrositeKeys.scala

@@ -39,6 +39,8 @@ trait MicrositeKeys {
     "Optional. Microsite CSS directory. By default, it'll be the resourcesDirectory + '/microsite/css'")
   val micrositeJsDirectory = settingKey[File](
     "Optional. Microsite Javascript directory. By default, it'll be the resourcesDirectory + '/microsite/js'")
+  val micrositeCDNDirectives = settingKey[CdnDirectives](
+    "Optional. Microsite CDN directives lists (for css and js imports). By default, both lists are empty.")
   val micrositeExternalLayoutsDirectory = settingKey[File](
     "Optional. Microsite external layouts directory. By default, it'll be the resourcesDirectory + '/microsite/layout'")
   val micrositeExternalIncludesDirectory = settingKey[File](

src/main/scala/microsites/MicrositesPlugin.scala

@@ -65,6 +65,7 @@ object MicrositesPlugin extends AutoPlugin {
     micrositeImgDirectory := (resourceDirectory in Compile).value / "microsite" / "img",
     micrositeCssDirectory := (resourceDirectory in Compile).value / "microsite" / "css",
     micrositeJsDirectory := (resourceDirectory in Compile).value / "microsite" / "js",
+    micrositeCDNDirectives := CdnDirectives(),
     micrositeExternalLayoutsDirectory := (resourceDirectory in Compile).value / "microsite" / "layouts",
     micrositeExternalIncludesDirectory := (resourceDirectory in Compile).value / "microsite" / "includes",
     micrositeDataDirectory := (resourceDirectory in Compile).value / "microsite" / "data",
@@ -114,6 +115,7 @@ object MicrositesPlugin extends AutoPlugin {
         micrositeImgDirectory = micrositeImgDirectory.value,
         micrositeCssDirectory = micrositeCssDirectory.value,
         micrositeJsDirectory = micrositeJsDirectory.value,
+        micrositeCDNDirectives = micrositeCDNDirectives.value,
         micrositeExternalLayoutsDirectory = micrositeExternalLayoutsDirectory.value,
         micrositeExternalIncludesDirectory = micrositeExternalIncludesDirectory.value,
         micrositeDataDirectory = micrositeDataDirectory.value,

src/main/scala/microsites/layouts/Layout.scala

@@ -62,6 +62,10 @@ abstract class Layout(config: MicrositeSettings) {
         link(rel := "stylesheet", href := s"{{site.baseurl}}/css/${css.getName}")
     }
 
+    val customCDNList = config.micrositeCDNDirectives.cssList map { css =>
+      link(rel := "stylesheet", href := css)
+    }
+
     List(
       link(rel := "stylesheet",
            href := "https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css"),
@@ -71,7 +75,7 @@ abstract class Layout(config: MicrositeSettings) {
            href := s"{{site.url}}{{site.baseurl}}/highlight/styles/${config.highlightTheme}.css"),
       link(rel := "stylesheet", href := s"{{site.baseurl}}/css/style.css"),
       link(rel := "stylesheet", href := s"{{site.baseurl}}/css/palette.css")
-    ) ++ customCssList
+    ) ++ customCssList ++ customCDNList
   }
 
   def scripts: List[TypedTag[String]] = {
@@ -80,6 +84,10 @@ abstract class Layout(config: MicrositeSettings) {
       script(src := s"{{site.url}}{{site.baseurl}}/js/${js.getName}")
     }
 
+    val customCDNList = config.micrositeCDNDirectives.jsList map { js =>
+      script(src := js)
+    }
+
     List(
       script(src := "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.min.js"),
       script(
@@ -90,7 +98,7 @@ abstract class Layout(config: MicrositeSettings) {
                |});
                |hljs.initHighlighting();
              """.stripMargin)
-    ) ++ customJsList
+    ) ++ customJsList ++ customCDNList
   }
 
   def globalFooter =

src/main/scala/microsites/microsites.scala

@@ -31,6 +31,7 @@ package object microsites {
                                micrositeImgDirectory: File,
                                micrositeCssDirectory: File,
                                micrositeJsDirectory: File,
+                               micrositeCDNDirectives: CdnDirectives,
                                micrositeExternalLayoutsDirectory: File,
                                micrositeExternalIncludesDirectory: File,
                                micrositeDataDirectory: File,
@@ -45,6 +46,8 @@ package object microsites {
                                layout: String,
                                metaProperties: Map[String, String] = Map.empty)
 
+  case class CdnDirectives(jsList: List[String] = Nil, cssList: List[String] = Nil)
+
   case class ConfigYml(
       yamlCustomProperties: Map[String, Any] = Map.empty,
       yamlPath: Option[File] = None,

src/sbt-test/microsites/config-yml/build.sbt

@@ -26,4 +26,4 @@ check := {
     sys.error("property defined inline not found")
   if (!content.contains("permalink: pretty"))
     sys.error("property defined in the provided file not found")
-}
+}

src/test/scala/microsites/util/Arbitraries.scala

@@ -51,6 +51,13 @@ trait Arbitraries {
     } yield ExtraMdFileConfig(file, target, mapArbValue)
   }
 
+  implicit def cdnDirectivesArbitrary: Arbitrary[CdnDirectives] = Arbitrary {
+    for {
+      jsList  <- listOf[String](Arbitrary.arbitrary[String])
+      cssList <- listOf[String](Arbitrary.arbitrary[String])
+    } yield CdnDirectives(jsList, cssList)
+  }
+
   implicit def markdownMapArbitrary: Arbitrary[Map[File, ExtraMdFileConfig]] = Arbitrary {
     for {
       n        ← choose(1, 100)
@@ -72,6 +79,7 @@ trait Arbitraries {
       micrositeImgDirectory              ← Arbitrary.arbitrary[File]
       micrositeCssDirectory              ← Arbitrary.arbitrary[File]
       micrositeJsDirectory               ← Arbitrary.arbitrary[File]
+      micrositeCDNDirectives             <- cdnDirectivesArbitrary.arbitrary
       micrositeExternalLayoutsDirectory  ← Arbitrary.arbitrary[File]
       micrositeExternalIncludesDirectory ← Arbitrary.arbitrary[File]
       micrositeDataDirectory             ← Arbitrary.arbitrary[File]
@@ -92,6 +100,7 @@ trait Arbitraries {
                         micrositeImgDirectory,
                         micrositeCssDirectory,
                         micrositeJsDirectory,
+                        micrositeCDNDirectives,
                         micrositeExternalLayoutsDirectory,
                         micrositeExternalIncludesDirectory,
                         micrositeDataDirectory,