avoid source dirs

Fixes #4

Types.hs

@@ -52,6 +52,7 @@ data SiteState =
     , _searchDataOut :: Maybe FilePath -- ^ File to write the searchable versions of pages to (as JSON)
     , _assetDir :: FilePath -- ^ Directory for output
     , _sourceDirs :: [FilePath] -- ^ Path to page source data
+    , _notSourceDirs :: [FilePath] -- ^ Subdirectories of source dirs where pages should not be sourced
     , _templateDir :: FilePath -- ^ Path to template directory
     , _defaultTemplate :: FilePath -- ^ Name of the default template
     , _redirectTemplate :: FilePath -- ^ Name of the template for redirect pages
@@ -93,6 +94,11 @@ siteOptions' = do
     short 's' <>
     help
       "Path to the directory with source data (possibly multiple paths, defaults to a single directory \"cards\")"
+  _notSourceDirs <-
+    fmap (maybe ["assets"] toList . nonEmpty) . many . strOption $
+    long "exclude-source-directory" <>
+    help
+      "Names of subdirectories of the sources that should never be used for sourcing pages (possibly multiple directory names, defaults to a single directory \"assets\")"
   _templateDir <-
     strOption $
     long "template-directory" <>

site.hs

@@ -3,7 +3,7 @@
 -- | The main deployment script.
 module Main where
 
-import Control.Monad ((>=>), join, unless, when)
+import Control.Monad ((>=>), filterM, join, unless, when)
 import Control.Monad.Extra (whenM)
 import Control.Monad.Trans.State.Lazy
 import qualified Data.Aeson as AE
@@ -48,13 +48,19 @@ import FormatOpts
 import Types
 import Utils
 
+-- | Check if a given path should be sourced or not
+isSourceablePath :: FilePath -> Site Bool
+isSourceablePath fp = do
+  notSource <- use notSourceDirs
+  pure $ (&&) <$> hasSuffix ".md" . last <*> not . any (`elem` notSource) . init $
+    splitPath fp
+
 -- | Load the pages from a directory and add them to `pages`.
 sourcePages :: FilePath -> Site ()
 sourcePages fp =
-  io
-    (map (fp </>) . filter (hasSuffix ".md" . last . splitPath) <$>
-     getRecursiveContents (pure . const False) fp) >>=
-  traverse_ loadPage
+  (io $ getRecursiveContents (pure . const False) fp) >>=
+  filterM isSourceablePath >>=
+  traverse_ (loadPage . (fp </>))
 
 {- | Extract `PageInfo` about a single page and save it into `pages` in
  - `SiteState`. -}