debian/exim4-config.preinst

   1 #!/bin/sh
   2
   3 set -e
   4
   5 if [ -n "$EX4DEBUG" ]; then
   6   echo "now debugging $0 $@"
   7   set -x
   8 fi
   9
  10 # Remove a no-longer used conffile
  11 # Solution and code taken from http://wiki.debian.org/DpkgConffileHandling
  12 # and "beautified" (hopefully not broken)
  13 rm_conffile() {
  14     PKGNAME="$1"
  15     CONFFILE="$2"
  16
  17     if [ -e "$CONFFILE" ]; then
  18         md5sum="$(md5sum "$CONFFILE" | sed -e "s/ .*//")"
  19         old_md5sum="$(dpkg-query -W -f='${Conffiles}' $PKGNAME | sed -n -e "\' $CONFFILE'{s/ obsolete$//;s/.* //;p;}")"
  20         if [ "$md5sum" != "$old_md5sum" ]; then
  21             echo "Obsolete conffile $CONFFILE has been modified by you."
  22             echo "Saving as $CONFFILE.dpkg-bak ..."
  23             mv -f "$CONFFILE" "$CONFFILE".dpkg-bak
  24         else
  25             echo "Removing obsolete conffile $CONFFILE ..."
  26             rm -f "$CONFFILE"
  27         fi
  28     fi
  29 }
  30
  31 case "$1" in
  32 install|upgrade)
  33     if dpkg --compare-versions "$2" lt "4.68-1"; then
  34        rm_conffile exim4-config "/etc/exim4/conf.d/acl/20_exim4-config_whitelist_local_deny"
  35        rm_conffile exim4-config "/etc/exim4/conf.d/router/250_exim4-config_lowuid"
  36     fi
  37 esac
  38
  39 #DEBHELPER#