From b5927393d103af9b8b2da80e8636b8aa52f80755 Mon Sep 17 00:00:00 2001
From: Dave Reisner <dreisner@archlinux.org>
Date: Mon, 2 Sep 2013 19:16:58 -0400
Subject: lsinitcpio: add support for lz4 compressed image

Note that this requires a very recent version of lz4 utilities as it
uses lz4, and not the original lz4c tool, in order to be command line
API compliant with other compression tools. See upstream discussions:

  https://code.google.com/p/lz4/issues/detail?id=83

Signed-off-by: Dave Reisner <dreisner@archlinux.org>
---
 lsinitcpio | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'lsinitcpio')

diff --git a/lsinitcpio b/lsinitcpio
index c1c5e21..5f19326 100755
--- a/lsinitcpio
+++ b/lsinitcpio
@@ -69,7 +69,7 @@ size_to_human() {
 }
 
 detect_filetype() {
-    case $(hexdump -n 6 -e '"%c"' "$1") in 
+    case $(hexdump -n 6 -e '"%c"' "$1") in
         '070701')
             # no compression
             return
@@ -90,6 +90,11 @@ detect_filetype() {
         return
     fi
 
+    if [[ $(hexdump -n 4 -e '"%x"' "$1") == '184d2204' ]]; then
+        echo 'lz4'
+        return
+    fi
+
     if [[ $(hexdump -n 3 -e '"%c"' "$1") == 'BZh' ]]; then
         echo 'bzip2'
         return
-- 
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