use XDG functions from the directory pakage

breve.cabal

@@ -32,10 +32,10 @@ executable breve
   other-extensions:  OverloadedStrings
   build-depends:     base >=4.8 && <5.0,
                      warp, warp-tls, tls, blaze-html, blaze-markup,
-                     servant-server, servant, servant-blaze, http-api-data,
-                     wai, wai-extra, streaming-commons,
+                     servant-server, servant, servant-blaze,
+                     wai, wai-extra, streaming-commons, http-api-data,
                      transformers, mtl,
                      text, aeson, bytestring, binary,
                      hashtables, cryptohash, random,
-                     xdg-basedir, configurator, directory
+                     configurator, directory
   ghc-options:       -threaded -O2

src/Breve/Settings.hs

@@ -41,9 +41,9 @@ settings :: Maybe FilePath -> IO AppSettings
 settings path = do
   configPath <- case path of
     Just path -> return path
-    Nothing   -> getUserConfigFile "breve" ""
+    Nothing   -> getXdgDirectory XdgConfig "breve"
 
-  urlsPath  <- getUserDataFile   "breve" ""
+  urlsPath  <- getXdgDirectory XdgData "breve"
 
   config  <- load [Required configPath]
   host    <- lookupDefault "localhost"                config "hostname"