debian/ifupdown2.postrm

   1 #!/bin/sh
   2 # postrm script for ifupdown2
   3 #
   4 # see: dh_installdeb(1)
   5
   6 set -e
   7
   8 # summary of how this script can be called:
   9 #        * <postrm> `remove'
  10 #        * <postrm> `purge'
  11 #        * <old-postrm> `upgrade' <new-version>
  12 #        * <new-postrm> `failed-upgrade' <old-version>
  13 #        * <new-postrm> `abort-install'
  14 #        * <new-postrm> `abort-install' <old-version>
  15 #        * <new-postrm> `abort-upgrade' <old-version>
  16 #        * <disappearer's-postrm> `disappear' <overwriter>
  17 #          <overwriter-version>
  18 # for details, see http://www.debian.org/doc/debian-policy/ or
  19 # the debian-policy package
  20
  21 process_udev()
  22 {
  23     if [ -e /etc/udev/rules.d/80-networking.rules ]; then
  24         udevlink=$(readlink /etc/udev/rules.d/80-networking.rules 2>/dev/null || true)
  25         [ -n "$udevlink" -a "$udevlink" = "/dev/null" ] && rm -f /etc/udev/rules.d/80-networking.rules
  26     fi
  27
  28     if  [ -e /etc/udev/rules.d/60-bridge-network-interface.rules ]; then
  29         udevlink=$(readlink /etc/udev/rules.d/60-bridge-network-interface.rules 2>/dev/null || true)
  30         [ -n "$udevlink" -a "$udevlink" = "/dev/null" ] && rm -f /etc/udev/rules.d/60-bridge-network-interface.rules
  31     fi
  32 }
  33
  34 postrm_remove()
  35 {
  36     process_udev
  37 }
  38
  39 # Note: We don't remove /etc/network/interfaces
  40 postrm_purge()
  41 {
  42         rm -f /run/network/ifstatenew
  43 }
  44
  45 # restore file if we diverted it on install/upgrade
  46 _postrm_divert()
  47 {
  48     diversions=$(dpkg-divert --list | grep "$1" | grep 'by ifupdown2$'  | wc -l 2> /dev/null)
  49     if [ $diversions -gt 0 ] ;
  50     then
  51         dpkg-divert --remove --package ifupdown2 --rename $1
  52     fi
  53 }
  54
  55 postrm_divert()
  56 {
  57     for filename in ifup ifdown ifquery ifreload
  58     do
  59         _postrm_divert "/usr/share/bash-completion/completions/$filename"
  60         _postrm_divert "/etc/bash_completion.d/$filename"
  61     done
  62 }
  63
  64 case "$1" in
  65         purge)
  66                 postrm_purge
  67         ;;
  68
  69         remove)
  70                 postrm_remove
  71                 postrm_divert
  72         ;;
  73
  74     abort-install|disappear|failed-upgrade|abort-upgrade)
  75         postrm_divert
  76     ;;
  77
  78         upgrade)
  79         ;;
  80
  81         *)
  82                 echo "postrm called with unknown argument \`$1'" >&2
  83                 exit 1
  84         ;;
  85 esac
  86
  87 # dh_installdeb will replace this with shell code automatically
  88 # generated by other debhelper scripts.
  89
  90 #DEBHELPER#
  91
  92 exit 0