update_spamassassin

   1 #!/bin/sh
   2
   3 # This command updates the spamassassin configuration; tests the new
   4 # configuration; then moves the updated configuration in place
   5
   6 set -e
   7
   8 SVN=$(which svn)
   9
  10 TMPDIR=$(mktemp -d);
  11
  12 HOSTNAME=$(hostname);
  13
  14 if [ "$HOSTNAME" = "rietz" ] || [ "$HOSTNAME" = "busoni" ]; then
  15     BASEDIR="/org/bugs.debian.org"
  16     USERCONF="bugs/user_prefs";
  17 elif [ "$HOSTNAME" = "liszt" ]; then
  18     BASEDIR="/var/list/.etc";
  19     USERCONF="lists/user_prefs";
  20 else
  21     echo "Unknown hostname '$HOSTNAME'";
  22     exit 1;
  23 fi;
  24
  25 SACONFIG="$BASEDIR/spamassassin_config";
  26 BAKDIR="$BASEDIR/spamassassin_config_bak";
  27
  28 # because alioth continuously fails, make sure that svn info will
  29 # succeed first before cluttering the log. Ideally we would report
  30 # this error, but it happens far too frequently, so we bail out here.
  31 if ! svn info $(svn info $SACONFIG|awk '/^URL:/{print $2}') >/dev/null 2>&1; then
  32     exit 0;
  33 fi;
  34
  35 # figure out if there's an update to be made
  36 ORIGREV=$(svn info $SACONFIG |awk '/^Revision:/{print $2}')
  37 NEWREV=$(svn info $(svn info $SACONFIG|awk '/^URL:/{print $2}')|awk '/^Revision:/{print $2}')
  38
  39 # no changes, bug out.
  40 if [ "0$ORIGREV" -ge "0$NEWREV" ]; then
  41     exit 0;
  42 fi;
  43
  44 if [ -e "$SACONFIG/.update_spamassassin" ] && kill -0 $(cat "$SACONFIG/.update_spamassassin") >/dev/null 2>&1; then
  45     echo "Another update_spamassassin appears to be running"
  46     exit 1;
  47 else
  48     echo $$ > "$SACONFIG/.update_spamassassin";
  49 fi;
  50
  51 remove_pidfile () {
  52     rm "$SACONFIG/.update_spamassassin";
  53 }
  54
  55 trap remove_pidfile 0;
  56
  57 FAILUREMESSAGE="";
  58 report_failure () {
  59     # Hrm; a previous update failed; don't report again until the file
  60     # is removed or it's more than a day old
  61     if [ -e "$SACONFIG/failed_update" ] &&
  62         [ $(($(date +%s) - $(stat -c '%Y' "$SACONFIG/failed_update"))) -lt 86400 ];  then
  63         rm -rf "$TMPDIR"
  64         exit 0;
  65     fi;
  66     echo "$FAILUREMESSAGE" > "$SACONFIG/failed_update"
  67     echo "$FAILUREMESSAGE";
  68     cat - <<EOF;
  69
  70 update_spamassassin will only report this error once a day, and
  71 updates will not occur until this is fixed.
  72
  73 Please fix the problem and then remove
  74 $SACONFIG/failed_update
  75 EOF
  76     rm -rf "$TMPDIR"
  77     exit 1;
  78 }
  79
  80 cp -ar $SACONFIG $TMPDIR/.
  81 OLDDIR="$(pwd)"
  82 cd $TMPDIR/spamassassin_config;
  83 svn update -q --non-interactive;
  84 if svn status |grep -q '^C'; then
  85     FAILUREMESSAGE=$'The following conflicts were found\n\n'
  86     FAILUREMESSAGE="$FAILUREMESSAGE$(svn status|grep ^C)";
  87     report_failure
  88 fi;
  89 cd "$(pwd)"
  90
  91 if ! spamassassin -p $TMPDIR/spamassassin_config/$USERCONF --lint > $TMPDIR/sa_lint 2>&1; then
  92     FAILUREMESSAGE="$(echo -e 'spamassassin -p $TMPDIR/spamassassin_config/$USERCONF --lint\nfailed with\n'| cat - $TMPDIR/sa_lint)";
  93     report_failure
  94 fi;
  95 mv "$SACONFIG" "$BAKDIR/spamassassin_config_r$ORIGREV"
  96 mv "$TMPDIR/spamassassin_config" "$SACONFIG"
  97 trap - ERR
  98 remove_pidfile
  99 rm -rf "$TMPDIR"
 100
 101 if [ "$HOSTNAME" == "rietz" ]; then
 102     touch /home/debbugs/.spamassassin/user_prefs
 103 elif [ "$HOSTNAME" == "liszt" ]; then
 104     # do nothing
 105     true;
 106 else
 107     echo "Unknown hostname '$HOSTNAME'";
 108     exit 1;
 109 fi;
 110
 111
 112 exit 0;