preinst is in courier-mta 0.68.2-1ubuntu3.
This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 | #! /bin/sh -e
#
# Copyright 2008,2009 by Stefan Hornburg (Racke) <racke@linuxia.de>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public
# License along with this program; if not, write to the Free
# Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA.
# define function for adding diversion of addcr
add_diversion() {
dpkg-divert --package courier-mta --add --rename \
--divert /usr/bin/addcr.ucspi-tcp /usr/bin/addcr
dpkg-divert --package courier-mta --add --rename \
--divert /usr/share/man/man1/addcr.ucspi-tcp.1.gz /usr/share/man/man1/addcr.1.gz
}
if [ "$1" = "install" ]; then
add_diversion
fi
if [ "$1" = "upgrade" ] && dpkg --compare-versions "$2" lt "0.60.0-1"; then
add_diversion
fi
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