From 957a4f29a3e211160a5dd2754665be43fb4927bc Mon Sep 17 00:00:00 2001
From: Michael Snoyman <michael@snoyman.com>
Date: Mon, 20 Oct 2014 15:47:41 +0300
Subject: [PATCH] Better compression

---
 stackage-upload.hs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/stackage-upload.hs b/stackage-upload.hs
index 42550fd2..cb446ef0 100644
--- a/stackage-upload.hs
+++ b/stackage-upload.hs
@@ -76,7 +76,7 @@ main = withManager defaultManagerSettings $ \m -> do
 
         putStrLn "Creating tarball"
         (Nothing, Nothing, Nothing, ph) <- createProcess
-            (proc "tar" $ "czf" : "haddock.tar.xz" : "index.html" : "style.css" : dirs)
+            (proc "tar" $ "cJf" : "haddock.tar.xz" : "index.html" : "style.css" : dirs)
                 { cwd = Just root
                 }
         ec <- waitForProcess ph