From f1073c5460f2381c5a8d59eec808952e9ed47af8 Mon Sep 17 00:00:00 2001
From: Thomas Bächler <thomas@archlinux.org>
Date: Sun, 27 Mar 2011 14:51:06 +0200
Subject: Improve compression in mkinitcpio

- Remove default -9 compression (FS#20954)
- Make compressor options configurable
- Add xz support and make sure xz uses crc32 checks
---
 mkinitcpio | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'mkinitcpio')

diff --git a/mkinitcpio b/mkinitcpio
index b4497e2..31145d0 100755
--- a/mkinitcpio
+++ b/mkinitcpio
@@ -32,6 +32,7 @@ PRESETDIR="mkinitcpio.d"
 QUIET="y"
 SHOW_AUTOMODS="n"
 COMPRESSION="gzip"
+COMPRESSION_OPTIONS=""
 
 if [ ! $UID ]; then
     UID=$(id -u)
@@ -283,7 +284,8 @@ status=0
 if [ -n "${GENIMG}" ]; then
     echo -n ":: Generating image '${GENIMG}'..."
     shopt -s -o pipefail
-    if ! /sbin/gen_init_cpio ${FILELIST} | ${COMPRESSION} -9 > "${GENIMG}"; then
+    [ ${COMPRESSION} = "xz" ] && COMPRESSION_OPTIONS="${COMPRESSION_OPTIONS} --check=crc32"
+    if ! /sbin/gen_init_cpio ${FILELIST} | ${COMPRESSION} ${COMPRESSION_OPTIONS} > "${GENIMG}"; then
         echo "FAILED"
         status=1
     else
-- 
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