Clean up imports.

[dead/halcyon.git] / src / OptionalConfiguration.hs

diff --git a/src/OptionalConfiguration.hs b/src/OptionalConfiguration.hs
index 11add85de7ae6081755d1821cf750a0c845b4af4..607659ea811ce200577ed1a04a645b86ae2a602b 100644 (file)
--- a/src/OptionalConfiguration.hs
+++ b/src/OptionalConfiguration.hs
@@ -2,7 +2,7 @@
 {-# LANGUAGE FlexibleInstances #-}
 {-# LANGUAGE OverloadedStrings #-}
 
--- | The program will parse ~/.twatrc for any available configuration
+-- | The program will parse ~/.halcyonrc for any available configuration
 --   directives, resulting in an OptionalCfg. The command-line
 --   arguments will be used to create another OptionalCfg, and the two
 --   will be merged. Finally, a default_config will be updated from
@@ -11,16 +11,21 @@
 
 module OptionalConfiguration (
   OptionalCfg(..),
-  from_rc
-  )
+  from_rc )
 where
 
-import qualified Data.Configurator as DC
-import qualified Data.Configurator.Types as DCT
-import Data.Data (Data)
-import Data.Maybe (fromMaybe)
-import Data.Monoid (Monoid(..))
-import Data.Typeable (Typeable)
+import qualified Data.Configurator as DC (
+  Worth (Optional),
+  load,
+  lookup )
+
+import Data.Data ( Data )
+import Data.Maybe ( fromMaybe )
+import Data.Monoid ( Monoid(..) )
+import Data.Typeable ( Typeable )
+
+import Usernames ( Usernames(..) )
+
 
 -- | The same as Cfg, except everything is optional. It's easy to
 --   merge two of these by simply dropping the Nothings in favor of
@@ -39,7 +44,7 @@ data OptionalCfg =
                 from_address :: Maybe String,
                 to_address :: Maybe String,
                 verbose :: Maybe Bool,
-                usernames :: [String] }
+                usernames :: Usernames }
     deriving (Show, Data, Typeable)
 
 instance Monoid OptionalCfg where
@@ -55,7 +60,7 @@ instance Monoid OptionalCfg where
              Nothing
              Nothing
              Nothing
-             []
+             (Usernames [])
 
   cfg1 `mappend` cfg2 =
     OptionalCfg
@@ -70,7 +75,7 @@ instance Monoid OptionalCfg where
       (merge (from_address cfg1) (from_address cfg2))
       (merge (to_address cfg1) (to_address cfg2))
       (merge (verbose cfg1) (verbose cfg2))
-      (usernames cfg2) -- Use only the usernames from cfg2
+      all_usernames
     where
       merge :: (Maybe a) -> (Maybe a) -> (Maybe a)
       merge Nothing Nothing   = Nothing
@@ -78,19 +83,15 @@ instance Monoid OptionalCfg where
       merge Nothing (Just x)  = Just x
       merge (Just _) (Just y) = Just y
 
-
-instance DCT.Configured [String] where
-  convert (DCT.List xs) =
-    mapM convert_string xs
-    where
-      convert_string :: DCT.Value -> Maybe String
-      convert_string = DCT.convert
-
-  convert _ = Nothing
+      -- Use only the latter usernames if there are any.
+      all_usernames =
+        usernames $ if (null (get_usernames (usernames cfg2)))
+                    then cfg1
+                    else cfg2
 
 from_rc :: IO OptionalCfg
 from_rc = do
-  cfg <- DC.load [ DC.Optional "$(HOME)/.twatrc" ]
+  cfg <- DC.load [ DC.Optional "$(HOME)/.halcyonrc" ]
   cfg_consumer_key <- DC.lookup cfg "consumer-key"
   cfg_consumer_secret <- DC.lookup cfg "consumer-secret"
   cfg_access_token <- DC.lookup cfg "access-token"
@@ -116,4 +117,4 @@ from_rc = do
              cfg_from_address
              cfg_to_address
              cfg_verbose
-             (fromMaybe [] cfg_usernames)
+             (fromMaybe (Usernames []) cfg_usernames)