#!/bin/sh
+[ "$1" = "-q" ] && quiet=true || quiet=false
+
set -e
-SRC="http://pciids.sourceforge.net/pci.ids"
+SRC="http://pci-ids.ucw.cz/v2.2/pci.ids"
DEST=pci.ids
+PCI_COMPRESSED_IDS=
+GREP=grep
+
+# if pci.ids is read-only (because the filesystem is read-only),
+# then just skip this whole process.
+if ! touch ${DEST} >/dev/null 2>&1 ; then
+ ${quiet} || echo "${DEST} is read-only, exiting." 1>&2
+ exit 1
+fi
-if which bzip2 >/dev/null ; then
+if [ "$PCI_COMPRESSED_IDS" = 1 ] ; then
+ DECOMP="cat"
+ SRC="$SRC.gz"
+ GREP=zgrep
+elif which bzip2 >/dev/null 2>&1 ; then
DECOMP="bzip2 -d"
SRC="$SRC.bz2"
-elif which gzip >/dev/null ; then
+elif which gzip >/dev/null 2>&1 ; then
DECOMP="gzip -d"
SRC="$SRC.gz"
else
DECOMP="cat"
fi
-if which wget >/dev/null ; then
- DL="wget -O $DEST.new $SRC"
-elif which lynx >/dev/null ; then
+if which 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
+ DL="wget --no-timestamping -O $DEST.new $SRC"
+ ${quiet} && DL="$DL -q"
+elif which lynx >/dev/null 2>&1 ; then
DL="eval lynx -source $SRC >$DEST.new"
else
- echo >&2 "update-pciids: cannot find wget nor lynx"
+ echo >&2 "update-pciids: cannot find curl, wget or lynx"
exit 1
fi
exit 1
fi
-if ! grep >/dev/null "^C " $DEST.neww ; then
+if ! $GREP >/dev/null "^C " $DEST.neww ; then
echo >&2 "update-pciids: missing class info, probably truncated file"
exit 1
fi
if [ -f $DEST ] ; then
mv $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
mv $DEST.neww $DEST
rm $DEST.new
-echo "Done."
+# Older versions did not compress the ids file, so let's make sure we
+# clean that up.
+if [ ${DEST%.gz} != ${DEST} ] ; then
+ rm -f ${DEST%.gz} ${DEST%.gz}.old
+fi
+
+${quiet} || echo "Done."