update-smart-drivedb.in

   1 #! /bin/sh
   2 #
   3 # smartmontools drive database update script
   4 #
   5 # Copyright (C) 2010 Christian Franke <smartmontools-support@lists.sourceforge.net>
   6 #
   7 # This program is free software; you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation; either version 2, or (at your option)
  10 # any later version.
  11 #
  12 # You should have received a copy of the GNU General Public License
  13 # (for example COPYING); If not, see <http://www.gnu.org/licenses/>.
  14 #
  15 # $Id: update-smart-drivedb.in 3072 2010-03-04 21:56:41Z chrfranke $
  16 #
  17
  18 set -e
  19
  20 # Set by config.status
  21 PACKAGE="@PACKAGE@"
  22 VERSION="@VERSION@"
  23 prefix="@prefix@"
  24 exec_prefix="@exec_prefix@"
  25 sbindir="@sbindir@"
  26 datarootdir="@datarootdir@"
  27 datadir="@datadir@"
  28 drivedbdir="@drivedbdir@"
  29
  30 # Default drivedb location
  31 DEST="$drivedbdir/drivedb.h"
  32
  33 # Smartctl used for syntax check
  34 SMARTCTL="$sbindir/smartctl"
  35
  36 # Trac repository browser (does not return HTTP 404 errors)
  37 #SRCEXPR='http://sourceforge.net/apps/trac/smartmontools/export/HEAD/$location/smartmontools/drivedb.h'
  38
  39 # ViewVC repository browser
  40 SRCEXPR='http://smartmontools.svn.sourceforge.net/viewvc/smartmontools/$location/smartmontools/drivedb.h?revision=HEAD'
  41
  42 # Convert version into branch name: 5.41[.X] -> "RELEASE_5_41_DRIVEDB"
  43 BRANCH="`echo $VERSION | sed -n 's|^\([0-9][0-9]*\)\.\([0-9][0-9]*\)\([^0-9].*\)\?$|RELEASE_\1_\2_DRIVEDB|p'`"
  44
  45 if [ -z "$BRANCH" ]; then
  46   echo "$0: syntax error in version number: $VERSION" >&2; exit 1
  47 fi
  48
  49
  50 # Parse options
  51 q="-q "
  52 case "$1" in
  53   -v) q=; shift ;;
  54 esac
  55
  56 case "$*" in
  57   -*|*\ *)
  58     cat <<EOF
  59 smartmontools $VERSION drive database update script
  60
  61 Usage: $0 [-v] [DESTFILE]
  62
  63   -v    verbose output
  64
  65 Updates $DEST
  66 or DESTFILE from smartmontools SVN repository.
  67 Tries to download first from branch $BRANCH
  68 and then from trunk.
  69 EOF
  70     exit 1
  71     ;;
  72
  73   "") ;;
  74   *)  DEST="$1" ;;
  75 esac
  76
  77 # Abort if 'which' is not available
  78 which which >/dev/null || exit 1
  79
  80 # Find download tool
  81 if which curl >/dev/null 2>/dev/null; then
  82   DOWNLOAD="curl ${q:+-s }"'-f -o "$DEST.new" "$SRC"'
  83 elif which wget >/dev/null 2>/dev/null; then
  84   DOWNLOAD="wget $q"'-O "$DEST.new" "$SRC"'
  85 elif which lynx >/dev/null 2>/dev/null; then
  86   DOWNLOAD='lynx -source "$SRC" >"$DEST.new"'
  87 else
  88   echo "$0: curl, wget or lynx not available" >&2; exit 1
  89 fi
  90
  91 # Try possible branch first, then trunk
  92 for location in "branches/$BRANCH" "trunk"; do
  93   test -n "$q" || echo "Download from $location"
  94
  95   errmsg=
  96   rm -f "$DEST.new"
  97   SRC="`eval echo "$SRCEXPR"`"
  98
  99   if eval $DOWNLOAD; then :; else
 100     errmsg="download from $location failed (HTTP error)"
 101     continue
 102   fi
 103   if grep -i 'ViewVC Exception' "$DEST.new" >/dev/null; then
 104     errmsg="download from $location failed (ViewVC error)"
 105     continue
 106   fi
 107
 108   break
 109 done
 110
 111 if [ -n "$errmsg" ]; then
 112   rm -f "$DEST.new"
 113   echo "$0: $errmsg" >&2
 114   exit 1
 115 fi
 116
 117 # Adjust timestamp and permissions
 118 touch "$DEST.new"
 119 chmod 0644 "$DEST.new"
 120
 121 # Check syntax
 122 rm -f "$DEST.error"
 123 if $SMARTCTL -B "$DEST.new" -P showall >/dev/null; then :; else
 124   mv "$DEST.new" "$DEST.error"
 125   echo "$DEST.error: rejected by $SMARTCTL, probably no longer compatible" >&2
 126   exit 1
 127 fi
 128
 129 # Keep old file if identical, ignore differences in Id string
 130 rm -f "$DEST.lastcheck"
 131 if [ -f "$DEST" ]; then
 132   if cat "$DEST" | sed 's|\$''Id''[^$]*\$|$''Id''$|' | cmp - "$DEST.new" >/dev/null; then
 133     rm -f "$DEST.new"
 134     touch "$DEST.lastcheck"
 135     echo "$DEST is already up to date"
 136     exit 0
 137   fi
 138   mv "$DEST" "$DEST.old"
 139 fi
 140
 141 mv "$DEST.new" "$DEST"
 142
 143 echo "$DEST updated from $location"
 144