debian/exim4-base.preinst

   1 #! /bin/sh
   2
   3 set -e
   4
   5
   6 # Remove a no-longer used conffile
   7 rm_conffile() {
   8     local PKGNAME="$1"
   9     local CONFFILE="$2"
  10
  11     [ -e "$CONFFILE" ] || return 0
  12
  13     local md5sum="$(md5sum $CONFFILE | sed -e 's/ .*//')"
  14     local old_md5sum="$(dpkg-query -W -f='${Conffiles}' $PKGNAME | \
  15             sed -n -e "\' $CONFFILE ' { s/ obsolete$//; s/.* //; p }")"
  16     if [ "$md5sum" != "$old_md5sum" ]; then
  17         echo "Obsolete conffile $CONFFILE has been modified by you."
  18         echo "Saving as $CONFFILE.dpkg-bak ..."
  19         mv -f "$CONFFILE" "$CONFFILE".dpkg-bak
  20     else
  21         echo "Removing obsolete conffile $CONFFILE ..."
  22         rm -f "$CONFFILE"
  23     fi
  24 }
  25
  26 case "$1" in
  27 install|upgrade)
  28     # Remove post-wheezy
  29     if test -e /etc/cron.monthly/exim4-base && \
  30             dpkg --compare-versions "$2" le "4.80-7~"; then
  31         rm_conffile mypackage "/etc/cron.monthly/exim4-base"
  32     fi
  33 esac
  34
  35 #DEBHELPER#