From 075e13ab716c67d2110db4905ae42b0280af046d Mon Sep 17 00:00:00 2001
From: Harendra Kumar <harendra@composewell.com>
Date: Wed, 26 Jan 2022 15:20:08 +0530
Subject: [PATCH] Use project-file when doing "cabal update"

GHC head version uses the head.hackage repository which is different
from hackage so update could result in different packages.
---
 packcheck.sh | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/packcheck.sh b/packcheck.sh
index 080bc72..9db6b38 100755
--- a/packcheck.sh
+++ b/packcheck.sh
@@ -1208,7 +1208,12 @@ ensure_cabal_config() {
     then
       echo
       echo "cabal v2-update"
-      retry_cmd cabal v2-update
+      if test -n "$CABAL_PROJECT"
+      then
+        retry_cmd cabal v2-update --project-file "$CABAL_PROJECT"
+      else
+        retry_cmd cabal v2-update
+      fi
     fi
   fi
 }