From c5d46c1986e6ed9a6b47cc4992fe23965096a139 Mon Sep 17 00:00:00 2001
From: Gerald Combs <gerald@wireshark.org>
Date: Thu, 11 Oct 2018 15:08:23 -0700
Subject: [PATCH] Tools: Compress our tarball using threads.

Check to see if xz supports threads and enable them if that's the case.

Change-Id: I8a0e7100fec98e5b7d7ccd9a987f7782bf7c7512
Reviewed-on: https://code.wireshark.org/review/30137
Reviewed-by: Anders Broman <a.broman58@gmail.com>
---
 tools/git-export-release.sh | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tools/git-export-release.sh b/tools/git-export-release.sh
index 168b87eda3..f19d6c7039 100755
--- a/tools/git-export-release.sh
+++ b/tools/git-export-release.sh
@@ -41,6 +41,7 @@ fi
 DESCRIPTION=$(git describe --abbrev=8 --match "v[1-9]*" "${COMMIT}")
 VERSION=${DESCRIPTION#v}
 STASH_POP=False
+XZ_OPTS=
 
 # We might be able to avoid stashing by doing one of the following:
 #
@@ -75,7 +76,9 @@ fi
 
 echo "Creating wireshark-$VERSION.tar.xz"
 
-git archive --prefix="wireshark-${VERSION}/" ${COMMIT} | xz > "${DESTDIR}/wireshark-${VERSION}.tar.xz"
+echo . | xz --threads=0 > /dev/null 2>&1 && XZ_OPTS=--threads=0
+
+git archive --prefix="wireshark-${VERSION}/" ${COMMIT} | xz $XZ_OPTS > "${DESTDIR}/wireshark-${VERSION}.tar.xz"
 
 if [ "$STASH_POP" == "True" ] ; then
     git stash pop