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Text File  |  2010-11-28  |  1.4 KB  |  60 lines
  1. #!/bin/sh
  2. # This script can be called in the following ways:
  3. #
  4. # Before the package is installed:
  5. #       <new-preinst> install
  6. #
  7. # Before removed package is upgraded:
  8. #       <new-preinst> install <old-version>
  9. #
  10. # Before the package is upgraded:
  11. #       <new-preinst> upgrade <old-version>
  12. #
  13. #
  14. # If postrm fails during upgrade or fails on failed upgrade:
  15. #       <old-preinst> abort-upgrade <new-version>
  16.  
  17. set -e
  18.  
  19. rm_conffile() {
  20.     local PKGNAME="$1"
  21.     local CONFFILE="$2"
  22.  
  23.     [ -e "$CONFFILE" ] || return 0
  24.  
  25.     local md5sum="$(md5sum $CONFFILE | sed -e 's/ .*//')"
  26.     local old_md5sum="$(dpkg-query -W -f='${Conffiles}' $PKGNAME | \
  27.         sed -n -e "\' $CONFFILE ' { s/ obsolete$//; s/.* //; p }")"
  28.     if [ "$md5sum" != "$old_md5sum" ]; then
  29.         echo "Obsolete conffile $CONFFILE has been modified by you."
  30.         echo "Saving as $CONFFILE.dpkg-bak ..."
  31.         mv -f "$CONFFILE" "$CONFFILE".dpkg-bak
  32.     else
  33.         echo "Removing obsolete conffile $CONFFILE ..."
  34.         rm -f "$CONFFILE"
  35.     fi
  36. }
  37.  
  38. case "$1" in
  39.     install|upgrade)
  40.         if dpkg --compare-versions "$2" lt "0.6.9-4"; then
  41.             rm_conffile wpasupplicant /etc/logrotate.d/wpa_supplicant
  42.             rm_conffile wpasupplicant /etc/logrotate.d/wpa_action
  43.         fi
  44.         if dpkg --compare-versions "$2" lt "0.6.10-1"; then
  45.             rm_conffile wpasupplicant /etc/init.d/wpa-ifupdown
  46.             update-rc.d -f wpa-ifupdown remove >/dev/null
  47.         fi
  48.         ;;
  49.     abort-upgrade)
  50.         ;;
  51.     *)
  52.         echo "$0 called with unknown argument \`$1'" 1>&2
  53.         exit 1
  54.         ;;
  55. esac
  56.  
  57.  
  58.  
  59. exit 0
  60.