use more helpful exception message when user has no cabal binary inst…

…alled
Paczesiowa · Dec 16, 2013 · b904436 · b904436
1 parent fa146fa
commit b904436
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/SanityCheck.hs b/src/SanityCheck.hs
@@ -36,7 +36,8 @@ checkCabalInstall = do
   cabalInstallPath <- liftIO $ which Nothing "cabal"
   case cabalInstallPath of
     Just _  -> return ()
-    Nothing -> throwError $ HsenvException "Couldn't find cabal binary (from cabal-install package) in your $PATH."
+    Nothing -> throwError $ HsenvException $ "Couldn't find cabal binary (from cabal-install package) in your $PATH." ++
+                                              "You could try using '--bootstrap-cabal' switch."
 
 -- check if GHC tools (ghc, ghc-pkg) exist on PATH
 -- skip the check if using GHC from a tarball