tolerate missing settings for repositories

closes #409

app/models/repository/Repositories.scala

@@ -13,7 +13,7 @@ object Repositories {
             Json.obj(
               "name" -> name,
               "type" -> (info \ "type").as[JsValue],
-              "settings" -> (info \ "settings").as[JsValue]
+              "settings" -> (info \ "settings").asOpt[JsObject].getOrElse[JsObject](Json.obj())
             )
           }.toSeq
         )

test/models/repository/RepositoriesSpec.scala

@@ -0,0 +1,61 @@
+package models.repository
+
+import org.specs2.Specification
+import play.api.libs.json.Json
+
+object RepositoriesSpec extends Specification {
+
+  def is =
+    s2"""
+    Repositories should
+        parse all repository info                  $repositories
+        tolerate missing settings for repository   $missingSettings
+
+      """
+
+  def repositories = {
+    val data = Json.parse(
+      """
+        |{
+        |  "some_repo_with_settings": {
+        |    "type": "s3",
+        |    "settings": {
+        |      "bucket": "bucket_name",
+        |      "region": "us"
+        |    }
+        |  }
+        |}
+      """.stripMargin
+    )
+    Repositories(data) mustEqual Json.arr(
+      Json.obj(
+        "name" -> "some_repo_with_settings",
+        "type" -> "s3",
+        "settings" -> Json.obj(
+          "bucket" -> "bucket_name",
+          "region" -> "us"
+        )
+      )
+    )
+  }
+
+  def missingSettings = {
+    val data = Json.parse(
+      """
+        |{
+        |  "some_repo_with_settings": {
+        |    "type": "s3"
+        |  }
+        |}
+      """.stripMargin
+    )
+    Repositories(data) mustEqual Json.arr(
+      Json.obj(
+        "name" -> "some_repo_with_settings",
+        "type" -> "s3",
+        "settings" -> Json.obj()
+      )
+    )
+  }
+
+}