mirror of
https://github.com/gnuton/asuswrt-merlin.ng.git
synced 2025-05-19 16:02:36 +02:00
75 lines
1.7 KiB
Bash
Executable file
75 lines
1.7 KiB
Bash
Executable file
#!/bin/sh
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[ "$1" = "-q" ] && quiet=true || quiet=false
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set -e
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SRC="http://pci-ids.ucw.cz/v2.2/pci.ids"
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DEST=pci.ids
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PCI_COMPRESSED_IDS=
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GREP=grep
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# if pci.ids is read-only (because the filesystem is read-only),
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# then just skip this whole process.
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if ! touch ${DEST} >/dev/null 2>&1 ; then
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${quiet} || echo "${DEST} is read-only, exiting." 1>&2
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exit 1
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fi
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if [ "$PCI_COMPRESSED_IDS" = 1 ] ; then
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DECOMP="cat"
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SRC="$SRC.gz"
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GREP=zgrep
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elif which bzip2 >/dev/null 2>&1 ; then
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DECOMP="bzip2 -d"
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SRC="$SRC.bz2"
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elif which gzip >/dev/null 2>&1 ; then
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DECOMP="gzip -d"
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SRC="$SRC.gz"
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else
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DECOMP="cat"
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fi
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if which curl >/dev/null 2>&1 ; then
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DL="curl -o $DEST.new $SRC"
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${quiet} && DL="$DL -s -S"
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elif which wget >/dev/null 2>&1 ; then
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DL="wget --no-timestamping -O $DEST.new $SRC"
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${quiet} && DL="$DL -q"
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elif which lynx >/dev/null 2>&1 ; then
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DL="eval lynx -source $SRC >$DEST.new"
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else
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echo >&2 "update-pciids: cannot find curl, wget or lynx"
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exit 1
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fi
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if ! $DL ; then
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echo >&2 "update-pciids: download failed"
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rm -f $DEST.new
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exit 1
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fi
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if ! $DECOMP <$DEST.new >$DEST.neww ; then
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echo >&2 "update-pciids: decompression failed, probably truncated file"
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exit 1
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fi
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if ! $GREP >/dev/null "^C " $DEST.neww ; then
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echo >&2 "update-pciids: missing class info, probably truncated file"
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exit 1
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fi
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if [ -f $DEST ] ; then
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mv $DEST $DEST.old
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# --reference is supported only by chmod from GNU file, so let's ignore any errors
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chmod -f --reference=$DEST.old $DEST.neww 2>/dev/null || true
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fi
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mv $DEST.neww $DEST
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rm $DEST.new
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# Older versions did not compress the ids file, so let's make sure we
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# clean that up.
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if [ ${DEST%.gz} != ${DEST} ] ; then
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rm -f ${DEST%.gz} ${DEST%.gz}.old
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fi
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${quiet} || echo "Done."
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