update-pciids.sh

   1 #!/bin/sh
   2
   3 set -e
   4 SRC="http://pciids.sourceforge.net/v2.2/pci.ids"
   5 DEST=pci.ids
   6 PCI_COMPRESSED_IDS=
   7 GREP=grep
   8
   9 if [ -n "$PCI_COMPRESSED_IDS" ] ; then
  10         DECOMP="cat"
  11         SRC="$SRC.gz"
  12         GREP=zgrep
  13 elif which bzip2 >/dev/null ; then
  14         DECOMP="bzip2 -d"
  15         SRC="$SRC.bz2"
  16 elif which gzip >/dev/null ; then
  17         DECOMP="gzip -d"
  18         SRC="$SRC.gz"
  19 else
  20         DECOMP="cat"
  21 fi
  22
  23 if which curl >/dev/null ; then
  24         DL="curl -o $DEST.new $SRC"
  25 elif which wget >/dev/null ; then
  26         DL="wget -O $DEST.new $SRC"
  27 elif which lynx >/dev/null ; then
  28         DL="eval lynx -source $SRC >$DEST.new"
  29 else
  30         echo >&2 "update-pciids: cannot find curl, wget or lynx"
  31         exit 1
  32 fi
  33
  34 if ! $DL ; then
  35         echo >&2 "update-pciids: download failed"
  36         rm -f $DEST.new
  37         exit 1
  38 fi
  39
  40 if ! $DECOMP <$DEST.new >$DEST.neww ; then
  41         echo >&2 "update-pciids: decompression failed, probably truncated file"
  42         exit 1
  43 fi
  44
  45 if ! $GREP >/dev/null "^C " $DEST.neww ; then
  46         echo >&2 "update-pciids: missing class info, probably truncated file"
  47         exit 1
  48 fi
  49
  50 if [ -f $DEST ] ; then
  51         mv $DEST $DEST.old
  52         # --reference is supported only by chmod from GNU file, so let's ignore any errors
  53         chmod -f --reference=$DEST.old $DEST.neww 2>/dev/null || true
  54 fi
  55 mv $DEST.neww $DEST
  56 rm $DEST.new
  57
  58 echo "Done."