From: Harald Hoyer <harald@redhat.com>
Date: Tue, 15 Mar 2011 18:49:13 +0000 (+0100)
Subject: lsinitrd: cope with xz and lzma compressed images
X-Git-Tag: 009~52
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=66fe35eb3e6102026c8b6b07de468c80016a7fa7;p=thirdparty%2Fdracut.git

lsinitrd: cope with xz and lzma compressed images
---

diff --git a/lsinitrd b/lsinitrd
index 7e9df9eb0..6e2d82b8f 100755
--- a/lsinitrd
+++ b/lsinitrd
@@ -22,14 +22,25 @@
 [[ $# -eq 1 || $# -eq 2 ]] || { echo "Usage: $(basename $0) <initramfs file> [<filename>]" ; exit 1 ; }
 [[ -f $1 ]]    || { echo "$1 does not exist" ; exit 1 ; }
 
+CAT=zcat
+FILE_T=$(file $1)
+
+if [[ "$FILE_T" =~ ": gzip compressed data" ]]; then
+    CAT=zcat
+elif [[ "$FILE_T" =~ ": xz compressed data" ]]; then
+    CAT=xzcat
+elif [[ "$FILE_T" =~ ": data" ]]; then
+    CAT=lzcat
+fi
+
 if [[ $# -eq 2 ]]; then
-    zcat $1 | cpio --extract --verbose --quiet --to-stdout ${2#/} 2>/dev/null
+    $CAT $1 | cpio --extract --verbose --quiet --to-stdout ${2#/} 2>/dev/null
     exit $?
 fi
 
 echo "$1:"
 echo "========================================================================"
-zcat $1 | cpio --extract --verbose --quiet --to-stdout 'dracut-*' 2>/dev/null
+$CAT $1 | cpio --extract --verbose --quiet --to-stdout 'dracut-*' 2>/dev/null
 echo "========================================================================"
-zcat $1 | cpio --extract --verbose --quiet --list
+$CAT $1 | cpio --extract --verbose --quiet --list
 echo "========================================================================"