Config: switch conferer → conftrackHEADmain

conftrack is a configuration library that I wrote to replace conferer,
as dealing with its idiosyncrasies became increasingly annoying.

It is currently very much still alpha-state software, but far enough
along to be tested in my own projects, and hopefully will soon be in a
state that is publishable on hackage.

For now, it can be found at
  https://stuebinm.eu/git/conftrack

1 files changed, 16 insertions, 19 deletions

diff --git a/app/Main.hs b/app/Main.hs
index a61140a..3856a67 100644
--- a/app/Main.hs
+++ b/app/Main.hs
@@ -1,15 +1,15 @@
+{-# LANGUAGE OverloadedLists #-}
+{-# LANGUAGE QuasiQuotes     #-}
 {-# LANGUAGE RecordWildCards #-}
 
 -- | The main module. Does little more than handle some basic ocnfic, then
 -- call the server
 module Main where
 
-import           Conferer                             (fetch)
-import           Conferer.Config                      (addSource, emptyConfig)
-import qualified Conferer.Source.Aeson                as ConfAeson
-import qualified Conferer.Source.CLIArgs              as ConfCLI
-import qualified Conferer.Source.Env                  as ConfEnv
-import qualified Conferer.Source.Yaml                 as ConfYaml
+import           Conftrack
+import           Conftrack.Pretty
+import           Conftrack.Source.Env                 (mkEnvSource)
+import           Conftrack.Source.Yaml                (mkYamlFileSource)
 import           Control.Monad.Extra                  (ifM)
 import           Control.Monad.IO.Class               (MonadIO (liftIO))
 import           Control.Monad.Logger                 (runStderrLoggingT)
@@ -20,6 +20,7 @@ import           Network.Wai.Middleware.RequestLogger (OutputFormat (..),
                                                        RequestLoggerSettings (..),
                                                        mkRequestLogger)
 import           System.Directory                     (doesFileExist)
+import           System.OsPath                        (osp)
 
 import           Config                               (ServerConfig (..))
 import           GTFS                                 (loadGtfs)
@@ -27,19 +28,15 @@ import           Server                               (application)
 
 main :: IO ()
 main = do
-  confconfig <- pure emptyConfig
-    >>= addSource ConfCLI.fromConfig
-    >>= addSource (ConfEnv.fromConfig "tracktrain")
-    -- for some reason the yaml source fails if the file does not exist, but json works fine
-    >>= (\c -> ifM (doesFileExist "./config.yaml")
-          (addSource (ConfYaml.fromFilePath "./config.yaml") c)
-          (pure c))
-    >>= (\c -> ifM (doesFileExist "./config.yml")
-          (addSource (ConfYaml.fromFilePath "./config.yml") c)
-          (pure c))
-    >>= addSource (ConfAeson.fromFilePath "./config.json")
-
-  settings@ServerConfig{..} <- fetch confconfig
+
+  Right ymlsource <- mkYamlFileSource [osp|./config.yaml|]
+
+  Right (settings@ServerConfig{..}, origins, warnings) <-
+    runFetchConfig [mkEnvSource "tracktrain", ymlsource]
+
+  putStrLn "reading configs .."
+  printConfigOrigins origins
+  printConfigWarnings warnings
 
   gtfs <- loadGtfs serverConfigGtfs serverConfigZoneinfoPath
   loggerMiddleware <- mkRequestLogger