Add compiler warning for preloader impl

2019-05-07 08:12:11 -07:00 · 2019-05-07 08:12:11 -07:00 · b968827d4b
parent dd05ffc40e
commit b968827d4b
1 changed files with 9 additions and 0 deletions
--- a/farmbot_ext/lib/farmbot_ext/api/preloader.ex
+++ b/farmbot_ext/lib/farmbot_ext/api/preloader.ex
@ -5,6 +5,15 @@ defmodule FarmbotExt.API.Preloader do
    * FarmbotCore.Asset.FbosConfig
    * FarmbotCore.Asset.FirmwareConfig
  """
+  Application.get_env(:farmbot_ext, __MODULE__)[:preloader_impl] ||
+    Mix.raise("""
+    No default preloader implementation was provided. 
+
+      config :farmbot_ext, FarmbotExt.API.Preloader, [
+        preloader_impl: FarmbotExt.API.Preloader.HTTP
+      ]
+    """)
+
  @callback preload_all :: :ok | :error

  def preload_all do