log which path the backend serves, and where

backend/app/Main.hs

@@ -29,7 +29,7 @@ import Options.Applicative qualified as A
 import Route qualified as R
 import Safe
 import Store qualified as Q
-import System.Directory (setCurrentDirectory, doesDirectoryExist)
+import System.Directory (setCurrentDirectory, doesDirectoryExist, makeAbsolute)
 import System.Exit
 import System.FilePath
 import System.INotify
@@ -205,16 +205,21 @@ main :: IO ()
 main = do
   A.execParser (A.info (args <**> A.helper) A.idm) >>= \case
     Args {cmd = Serve {contentRepositoryPath, serverPort}} -> do
-      contentRepositoryPathExists <- doesDirectoryExist (contentRepositoryPath </> ".git")
+      contentRepositoryPath' <- makeAbsolute contentRepositoryPath
+      contentRepositoryPathExists <- doesDirectoryExist (contentRepositoryPath' </> ".git")
+
       unless contentRepositoryPathExists $ do
         logStderr $ "Content repository '" ++ contentRepositoryPath ++ "' is not a git repository."
         exitFailure
-      setCurrentDirectory contentRepositoryPath
+
+      setCurrentDirectory contentRepositoryPath'
       let root = "."
           ref = "refs/heads/master"
       repoT <- newEmptyTMVarIO
       _ <- forkIO do watch repoT root ref
 
+      logStderr ("Serving " ++ contentRepositoryPath' ++ " on port " ++ show serverPort ++ ".")
+
       W.runEnv serverPort $ \req respond -> do
         case P.parseOnly R.parser (W.rawPathInfo req) of
           Right (R.SchemaJson path) -> do