From 84fed676e415431ab5b62c9e0ac09776313de25d Mon Sep 17 00:00:00 2001
From: Finn Landweber <finn@landweber.xyz>
Date: Thu, 23 May 2024 10:55:12 +0200
Subject: [PATCH] Add info when init with cached Nixpkgs (#402)

https://github.com/nmattia/niv/issues/384
---
 src/Niv/Cli.hs | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/Niv/Cli.hs b/src/Niv/Cli.hs
index d59ec81..509e122 100644
--- a/src/Niv/Cli.hs
+++ b/src/Niv/Cli.hs
@@ -230,6 +230,15 @@ cmdInit nixpkgs = do
                   tbold (T.pack fp) <> "."
                 ]
             ]
+  case nixpkgs of
+    NixpkgsFast ->
+      tsay $
+        T.unlines
+          [ "",
+            tbold (tblue "INFO: ") <> "`niv init` didn't fetch the latest commit for nixpkgs (due to --fast).",
+            "      Run `niv update nixpkgs` if you wish to pin the latest."
+          ]
+    _ -> pure ()
   where
     createFile :: FilePath -> B.ByteString -> NIO ()
     createFile path content = li $ do