X-Git-Url: http://mj.ucw.cz/gitweb/?a=blobdiff_plain;f=update-pciids.sh;h=32633394a28bebdde61aa7338638db6a444b42e9;hb=327b6e8a1660e1c937b7987fa31f972af393521b;hp=42faeea13a5af27193669b58dbc8e30ba3fe9c43;hpb=bae18059dd61ae42b3c5d7c36b55cb4e49559884;p=pciutils.git

diff --git a/update-pciids.sh b/update-pciids.sh
index 42faeea..3263339 100755
--- a/update-pciids.sh
+++ b/update-pciids.sh
@@ -20,23 +20,26 @@ if [ "$PCI_COMPRESSED_IDS" = 1 ] ; then
 	DECOMP="cat"
 	SRC="$SRC.gz"
 	GREP=zgrep
-elif which bzip2 >/dev/null 2>&1 ; then
+elif command -v xz >/dev/null 2>&1 ; then
+	DECOMP="xz -d"
+	SRC="$SRC.xz"
+elif command -v bzip2 >/dev/null 2>&1 ; then
 	DECOMP="bzip2 -d"
 	SRC="$SRC.bz2"
-elif which gzip >/dev/null 2>&1 ; then
+elif command -v gzip >/dev/null 2>&1 ; then
 	DECOMP="gzip -d"
 	SRC="$SRC.gz"
 else
 	DECOMP="cat"
 fi
 
-if which curl >/dev/null 2>&1 ; then
+if command -v curl >/dev/null 2>&1 ; then
 	DL="curl -o $DEST.new $SRC"
 	${quiet} && DL="$DL -s -S"
-elif which wget >/dev/null 2>&1 ; then
+elif command -v wget >/dev/null 2>&1 ; then
 	DL="wget --no-timestamping -O $DEST.new $SRC"
 	${quiet} && DL="$DL -q"
-elif which lynx >/dev/null 2>&1 ; then
+elif command -v lynx >/dev/null 2>&1 ; then
 	DL="eval lynx -source $SRC >$DEST.new"
 else
 	echo >&2 "update-pciids: cannot find curl, wget or lynx"
@@ -60,7 +63,7 @@ if ! $GREP >/dev/null "^C " $DEST.neww ; then
 fi
 
 if [ -f $DEST ] ; then
-	mv $DEST $DEST.old
+	ln -f $DEST $DEST.old
 	# --reference is supported only by chmod from GNU file, so let's ignore any errors
 	chmod -f --reference=$DEST.old $DEST.neww 2>/dev/null || true
 fi