fixed for new ghc version

app/Main.hs

@@ -37,21 +37,20 @@ findChoirDay today table = maybe
 main' :: App ()
 main' = do
   args <- liftIO getArgs
-  if length args /= 1
-  then
-    fail "We need exactly one config path as option"
-  else do
-    config <- parseConfigFile (head args)
-    -- we want to handle these while we have the config in scope
-    result <- liftIO $ runApp $ do
-      bs <- request
-      table <- except $ parseBString bs
-      today <- liftIO getToday
-      record <- except $ findChoirDay today table
-      send (mailDomain config) (mailUsername config) (mailPassword config) (mailTo config) (mailFrom config) (mailSubject record) (mailText record)
-    case result of
-      Right x -> return x
-      Left error' -> reportErrorMail config error'
+  case L.uncons args of
+    Nothing -> fail "We need exactly one config path as option"
+    Just (headArgs,_) ->  do
+      config <- parseConfigFile headArgs
+      -- we want to handle these while we have the config in scope
+      result <- liftIO $ runApp $ do
+        bs <- request
+        table <- except $ parseBString bs
+        today <- liftIO getToday
+        record <- except $ findChoirDay today table
+        send (mailDomain config) (mailUsername config) (mailPassword config) (mailTo config) (mailFrom config) (mailSubject record) (mailText record)
+      case result of
+        Right x -> return x
+        Left error' -> reportErrorMail config error'
 
 
 

app/Requester.hs

@@ -5,7 +5,6 @@ import Network.HTTP.Req
 -- import qualified Data.Text as T
 import Control.Monad.IO.Class(MonadIO)
 import qualified Data.ByteString as B
-import Text.URI
 
 url :: Url 'Https
 url = https "md.darmstadt.ccc.de" /: "mathechor-probenplanung" /: "download"

choirMail.cabal

@@ -76,7 +76,7 @@ executable choirMail
 
     -- Other library packages from which modules are imported.
     -- ^>=4.15.1.0
-    build-depends:    base >=4.15.1.0 && < 4.19
+    build-depends:    base >=4.15.1.0 && < 4.21
                       ,transformers
                       ,tomland >= 1.3.3.0
                       ,smtp-mail

flake.lock

@@ -5,11 +5,11 @@
         "systems": "systems"
       },
       "locked": {
-        "lastModified": 1710146030,
-        "narHash": "sha256-SZ5L6eA7HJ/nmkzGG7/ISclqe6oZdOZTNoesiInkXPQ=",
+        "lastModified": 1731533236,
+        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "b1d9ab70662946ef0850d488da1c9019f3a9752a",
+        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
         "type": "github"
       },
       "original": {
@@ -20,11 +20,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1712192574,
-        "narHash": "sha256-LbbVOliJKTF4Zl2b9salumvdMXuQBr2kuKP5+ZwbYq4=",
+        "lastModified": 1746576598,
+        "narHash": "sha256-FshoQvr6Aor5SnORVvh/ZdJ1Sa2U4ZrIMwKBX5k2wu0=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "f480f9d09e4b4cf87ee6151eba068197125714de",
+        "rev": "b3582c75c7f21ce0b429898980eddbbf05c68e55",
         "type": "github"
       },
       "original": {