preinst is in python-poker-engine 1.3.6-1.2.
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 | #!/bin/bash
set -e
if [ "${DH_VERBOSE:-0}" -gt 0 ] ; then set -x ; fi
if [ "$1" = "upgrade" -a -n "$2" ] && dpkg --compare-versions "$2" lt-nl "1.0.21"; then
#
# Major changes in 1.0.21, forget about upgrading
#
rm -f /etc/poker-engine/poker.*.xml
fi
# dh_installdeb will replace this with shell code automatically
# generated by other debhelper scripts.
exit 0
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