Merge remote-tracking branch 'piyush-kurur/master'

Conflicts:
	hakyll.cabal

hakyll.cabal

@@ -143,6 +143,7 @@ Library
     citeproc-hs  >= 0.3.2  && < 0.4,
     containers   >= 0.3    && < 0.6,
     cryptohash   >= 0.7    && < 0.9,
+    data-default >= 0.4    && < 0.6,
     deepseq      >= 1.3    && < 1.4,
     directory    >= 1.0    && < 1.3,
     filepath     >= 1.0    && < 1.4,
@@ -216,6 +217,7 @@ Test-suite hakyll-tests
     citeproc-hs  >= 0.3.2  && < 0.4,
     containers   >= 0.3    && < 0.6,
     cryptohash   >= 0.7    && < 0.9,
+    data-default >= 0.4    && < 0.6,
     deepseq      >= 1.3    && < 1.4,
     directory    >= 1.0    && < 1.3,
     filepath     >= 1.0    && < 1.4,

src/Hakyll/Core/Configuration.hs

@@ -8,6 +8,7 @@ module Hakyll.Core.Configuration
 
 
 --------------------------------------------------------------------------------
+import           Data.Default       (Default(..))
 import           Data.List          (isPrefixOf, isSuffixOf)
 import           System.FilePath    (normalise, takeFileName)
 
@@ -56,6 +57,9 @@ data Configuration = Configuration
       inMemoryCache        :: Bool
     }
 
+--------------------------------------------------------------------------------
+instance Default Configuration where
+    def = defaultConfiguration
 
 --------------------------------------------------------------------------------
 -- | Default configuration for a hakyll application