fixed test and added warning

readme.md

@@ -119,7 +119,7 @@ choice. Beware that file updates are not propagated into the container so
 
     Prints information about the current project's directories, the targets
     (files which will be generated) and the meta data options which are found in
-    top level `decker.yaml` files.
+    top level `decker.yaml` file.
 
 -   `decker html`
 

src/Text/Decker/Internal/Meta.hs

@@ -119,7 +119,9 @@ readMetaData dir = do
   meta <-
     if exists
       then decodeYaml file
-      else return (Y.object [])
+      else do
+        putStrLn "WARNING: There is no top level 'decker.yaml' file!"
+        return (Y.object [])
   return $ toPandocMeta meta
 
 getMetaInt :: String -> Meta -> Maybe Int

test/Spec.hs

@@ -27,7 +27,7 @@ main = do
   deckTemplate <- B.readFile (dirs ^. project </> "resource/template/deck.html")
   --
   -- metaFiles <- globDir1 (compile "**/*-meta.yaml") (dirs ^. project)
-  metaFile <- dirs ^. project </> "decker.yaml"
+  let metaFile = dirs ^. project </> "decker.yaml"
   --
   hspec $
   --