From ae58d0f7af61b5bae65ec0532ee316dd9fb5e4ea Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel@debian.org>
Date: Tue, 22 Apr 2008 23:32:30 +0200
Subject: Producing rsyncable tarballs where possible.

---
 helpers/lh_binary_net | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

(limited to 'helpers/lh_binary_net')

diff --git a/helpers/lh_binary_net b/helpers/lh_binary_net
index f97d4c3b3..3b5076eda 100755
--- a/helpers/lh_binary_net
+++ b/helpers/lh_binary_net
@@ -78,7 +78,14 @@ case "${LH_NET_TARBALL}" in
 		;;
 
 	gzip)
-		tar cfz binary-net.tar.gz "$(basename ${OLDPWD})/${ROOT_DIR}" "$(basename ${OLDPWD})/tftpboot"
+		if gzip --help | grep -q "\-\-rsyncable"
+		then
+			tar cf binary-net.tar "$(basename ${OLDPWD})/${ROOT_DIR}" "$(basename ${OLDPWD})/tftpboot"
+			gzip --rsyncable --best binary-net.tar
+		else
+			tar cfz binary-net.tar.gz "$(basename ${OLDPWD})/${ROOT_DIR}" "$(basename ${OLDPWD})/tftpboot"
+		fi
+
 		mv binary-net.tar.gz "${OLDPWD}"
 		;;
 
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