Disable cabal loader in production (want a separate batch job)

Application.hs

@@ -33,6 +33,8 @@ import           Yesod.Core.Types (loggerSet, Logger (Logger))
 import           Yesod.Default.Config
 import           Yesod.Default.Handlers
 import           Yesod.Default.Main
+import           System.Environment (getEnvironment)
+import           Data.BlobStore (HasBlobStore)
 
 import qualified Echo
 
@@ -166,6 +168,12 @@ makeFoundation useEcho conf = do
         (Database.Persist.runPool dbconf (runMigration migrateAll) p)
         (messageLoggerSource foundation logger)
 
+    env <- getEnvironment
+    let loadCabalFiles' =
+            case lookup "STACKAGE_CABAL_LOADER" env of
+                Just "0" -> return ()
+                _ -> appLoadCabalFiles foundation dbconf p
+
     -- Start the cabal file loader
     ifRunCabalLoader $ forkIO $ forever $ flip runLoggingT (messageLoggerSource foundation logger) $ do
         $logInfoS "CLEANUP" "Cleaning up /tmp"
@@ -173,10 +181,29 @@ makeFoundation useEcho conf = do
         runResourceT $ sourceDirectory "/tmp" $$ mapM_C (cleanupTemp now)
         $logInfoS "CLEANUP" "Cleaning up complete"
 
-        --when development $ liftIO $ threadDelay $ 5 * 60 * 1000000
-        eres <- tryAny $ flip runReaderT foundation $ do
-            let runDB' :: SqlPersistT (ResourceT (ReaderT App (LoggingT IO))) a
-                       -> ReaderT App (LoggingT IO) a
+        loadCabalFiles'
+
+        liftIO $ threadDelay $ 30 * 60 * 1000000
+    return foundation
+  where ifRunCabalLoader m =
+            if cabalFileLoader
+               then void m
+               else return ()
+
+appLoadCabalFiles :: ( PersistConfig c
+                     , PersistConfigBackend c ~ SqlPersistT
+                     , HasHackageRoot env
+                     , HasBlobStore env StoreKey
+                     , HasHttpManager env
+                     )
+                  => env
+                  -> c
+                  -> PersistConfigPool c
+                  -> LoggingT IO ()
+appLoadCabalFiles env dbconf p = do
+    eres <- tryAny $ flip runReaderT env $ do
+        let runDB' :: SqlPersistT (ResourceT (ReaderT env (LoggingT IO))) a
+                   -> ReaderT env (LoggingT IO) a
             runDB' = runResourceT . flip (Database.Persist.runPool dbconf) p
         uploadHistory0 <- runDB' $ selectSource [] [] $$ sinkUploadHistory
         let toMDPair (E.Value name, E.Value version, E.Value hash') =
@@ -205,12 +232,6 @@ makeFoundation useEcho conf = do
     case eres of
         Left e -> $logError $ tshow e
         Right () -> return ()
-        liftIO $ threadDelay $ 30 * 60 * 1000000
-    return foundation
-  where ifRunCabalLoader m =
-            if cabalFileLoader
-               then void m
-               else return ()
 
 cleanupTemp :: UTCTime -> FilePath -> ResourceT (LoggingT IO) ()
 cleanupTemp now fp

config/keter.yaml

@@ -1,6 +1,8 @@
 exec: ../dist/build/stackage-server/stackage-server
 args:
     - production
+env:
+    STACKAGE_CABAL_LOADER: 0
 host: www.stackage.org
 
 redirects: