From 566afa1e9c804dd4a893960f30325a38c81a4c51 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <eelco.dolstra@logicblox.com>
Date: Wed, 5 Dec 2012 11:02:44 +0100
Subject: Support xz compression of nixexprs.tar in channels

---
 corepkgs/unpack-channel.nix | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'corepkgs')

diff --git a/corepkgs/unpack-channel.nix b/corepkgs/unpack-channel.nix
index 8cf79f828..5c2a61e66 100644
--- a/corepkgs/unpack-channel.nix
+++ b/corepkgs/unpack-channel.nix
@@ -6,7 +6,12 @@ let
     ''
       mkdir $out
       cd $out
-      ${bzip2} -d < $src | ${tar} xf - ${tarFlags}
+      pat="\.xz\$"
+      if [[ "$src" =~ $pat ]]; then
+        ${xz} -d < $src | ${tar} xf - ${tarFlags}
+      else
+        ${bzip2} -d < $src | ${tar} xf - ${tarFlags}
+      fi
       mv * $out/$channelName
       if [ -n "$binaryCacheURL" ]; then
         mkdir $out/binary-caches
-- 
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